Syncro / VC / noise and vibes

21

Hi Greg,

Ok thankyou for that clarification.


So concerning the donut, what is its function please? It must have one, despite GoWesty saying it's not needed ... they leave it out in their own replacement propshaft.


Best guesses are:


Is a buffer, absorbing impacts in the drivetrain or ....


Allows and accommodates to a degree, out of spec changes in relative setup angles between components, they being the setup angles of the transaxle, propshaft and front differential.


or?  ...


Don't recall this being discussed here before. TIA.

Cheers.

Ken 



From: Syncro_T3_Australia@yahoogroups.com <Syncro_T3_Australia@yahoogroups.com> on behalf of gregespo73@yahoo.com [Syncro_T3_Australia] <Syncro_T3_Australia@yahoogroups.com>
Sent: Monday, 28 May 2018 5:32 PM
To: Syncro_T3_Australia@yahoogroups.com
Subject: Re: [Syncro_T3_Australia] Re: Syncro / VC / noise and vibes
 
 

It doesn’t work that way. Many modern wheel balancers spin very slowly. It’s all about the quality of the sensors. If there is play in the unis have them replaced by the professionals and then they will balance it. You can also replace the bush and o ring under the donut. Greg

Sent from Greg's iPhone

On 28 May 2018, at 4:28 pm, Peter Bellamy wanderingstar911@gmail.com [Syncro_T3_Australia] <Syncro_T3_Australia@yahoogroups.com> wrote:

 


On Mon, 28 May 2018, 3:47 pm Ken Garratt unclekenz@hotmail.com [Syncro_T3_Australia], <Syncro_T3_Australia@yahoogroups.com> wrote:
 

Also,
I read somewhere that local refurbishers/balancers of the likes of tailshafts/propshafts do not have test equipment that maximum rotate any where near as far as our propshafts do. Limited to say 1000rpm. If valid, then your vibration coming in in excess of 100kph may not show up. I stand corrected if incorrect.
Cheers.
Ken




Sent from Samsung tablet



-------- Original message --------
From: "Ken Garratt unclekenz@hotmail.com [Syncro_T3_Australia]" <Syncro_T3_Australia@yahoogroups.com>
Date: 28/05/2018 3:17 PM (GMT+10:00)
To: syncro_t3_australia@yahoogroups.com
Subject: Re: [Syncro_T3_Australia] Re: Syncro / VC / noise and vibes


 

Hi Gaetan,
Sure, if you so choose. Might get lucky.

There's been previous discussion here about replacing joints with a particular model designed more for agricultural use. Maybe not quite up to scratch but lacking an alternative. Not been there so can't help further, someone else may have more specific info.
Cheers.
Ken

From: lepews@me.com [Syncro_T3_Australia]
Sent: Monday, 28 May 1:35 PM
Subject: [Syncro_T3_Australia] Re: Syncro / VC / noise and vibes
 
I'm awaiting to hear from FDE - hopefully they will be able to help and that will solve my problem!

When you say having the uni's checked, do you mean the U-joints either end of the tail shaft? 

And thanks to all who posted in this topic - all great advice and much appreciated!



22

I have had some shafts made up just like the gowesty ones, solid shafts with grease nipples and common replaceable uni joints, if anyone is interested I still have a few. I've had mine in place for a year and done quite a few thousand K's with no issues or any vibrations.

Roger Bailey also has one in use. (Hi Roger)

I had the same issues with the original, changed to the agro uni joints, had it balanced, still had vibrations. Had the solid shafts made and haven't looked back.

Cheers, Uwe


On 28/05/2018 4:28 PM, Peter Bellamy wanderingstar911@gmail.com [Syncro_T3_Australia] wrote:

On Mon, 28 May 2018, 3:47 pm Ken Garratt unclekenz@hotmail.com [Syncro_T3_Australia], <Syncro_T3_Australia@yahoogroups.com> wrote:

Also,
I read somewhere that local refurbishers/balancers of the likes of tailshafts/propshafts do not have test equipment that maximum rotate any where near as far as our propshafts do. Limited to say 1000rpm. If valid, then your vibration coming in in excess of 100kph may not show up. I stand corrected if incorrect.
Cheers.
Ken




Sent from Samsung tablet



-------- Original message --------
From: "Ken Garratt unclekenz@hotmail.com [Syncro_T3_Australia]" <Syncro_T3_Australia@yahoogroups.com>
Date: 28/05/2018 3:17 PM (GMT+10:00)
To: syncro_t3_australia@yahoogroups.com
Subject: Re: [Syncro_T3_Australia] Re: Syncro / VC / noise and vibes


Hi Gaetan,
Sure, if you so choose. Might get lucky.

There's been previous discussion here about replacing joints with a particular model designed more for agricultural use. Maybe not quite up to scratch but lacking an alternative. Not been there so can't help further, someone else may have more specific info.
Cheers.
Ken

From: lepews@me.com [Syncro_T3_Australia]
Sent: Monday, 28 May 1:35 PM
Subject: [Syncro_T3_Australia] Re: Syncro / VC / noise and vibes

I'm awaiting to hear from FDE - hopefully they will be able to help and that will solve my problem!

When you say having the uni's checked, do you mean the U-joints either end of the tail shaft?

And thanks to all who posted in this topic - all great advice and much appreciated!




23
Uwe
Hi there
I'd be interested mate.
How much?
Where are you?
Thanks
Peter Bellamy

On Tue, 29 May 2018, 1:33 pm 911Jack 911jack@gmail.com [Syncro_T3_Australia], <Syncro_T3_Australia@yahoogroups.com> wrote:

I have had some shafts made up just like the gowesty ones, solid shafts with grease nipples and common replaceable uni joints, if anyone is interested I still have a few. I've had mine in place for a year and done quite a few thousand K's with no issues or any vibrations.

Roger Bailey also has one in use. (Hi Roger)

I had the same issues with the original, changed to the agro uni joints, had it balanced, still had vibrations. Had the solid shafts made and haven't looked back.

Cheers, Uwe


On 28/05/2018 4:28 PM, Peter Bellamy wanderingstar911@gmail.com [Syncro_T3_Australia] wrote:

On Mon, 28 May 2018, 3:47 pm Ken Garratt unclekenz@hotmail.com [Syncro_T3_Australia], <Syncro_T3_Australia@yahoogroups.com> wrote:

Also,
I read somewhere that local refurbishers/balancers of the likes of tailshafts/propshafts do not have test equipment that maximum rotate any where near as far as our propshafts do. Limited to say 1000rpm. If valid, then your vibration coming in in excess of 100kph may not show up. I stand corrected if incorrect.
Cheers.
Ken




Sent from Samsung tablet



-------- Original message --------
From: "Ken Garratt unclekenz@hotmail.com [Syncro_T3_Australia]" <Syncro_T3_Australia@yahoogroups.com>
Date: 28/05/2018 3:17 PM (GMT+10:00)
To: syncro_t3_australia@yahoogroups.com
Subject: Re: [Syncro_T3_Australia] Re: Syncro / VC / noise and vibes


Hi Gaetan,
Sure, if you so choose. Might get lucky.

There's been previous discussion here about replacing joints with a particular model designed more for agricultural use. Maybe not quite up to scratch but lacking an alternative. Not been there so can't help further, someone else may have more specific info.
Cheers.
Ken

From: lepews@me.com [Syncro_T3_Australia]
Sent: Monday, 28 May 1:35 PM
Subject: [Syncro_T3_Australia] Re: Syncro / VC / noise and vibes

I'm awaiting to hear from FDE - hopefully they will be able to help and that will solve my problem!

When you say having the uni's checked, do you mean the U-joints either end of the tail shaft?

And thanks to all who posted in this topic - all great advice and much appreciated!




24
Hi Uwe,

I am interested? What do they cost?
Cheers
Mark

25
Me too.

I'm interested depending on where and how much.

Thanks,

Scott

On 29/05/2018 1:33 PM, 911Jack 911jack@gmail.com [Syncro_T3_Australia] wrote:

I have had some shafts made up just like the gowesty ones, solid shafts with grease nipples and common replaceable uni joints, if anyone is interested I still have a few. I've had mine in place for a year and done quite a few thousand K's with no issues or any vibrations.

Roger Bailey also has one in use. (Hi Roger)

I had the same issues with the original, changed to the agro uni joints, had it balanced, still had vibrations. Had the solid shafts made and haven't looked back.

Cheers, Uwe


On 28/05/2018 4:28 PM, Peter Bellamy wanderingstar911@gmail.com [Syncro_T3_Australia] wrote:

On Mon, 28 May 2018, 3:47 pm Ken Garratt unclekenz@hotmail.com [Syncro_T3_Australia], <Syncro_T3_Australia@yahoogroups.com> wrote:

Also,
I read somewhere that local refurbishers/balancers of the likes of tailshafts/propshafts do not have test equipment that maximum rotate any where near as far as our propshafts do. Limited to say 1000rpm. If valid, then your vibration coming in in excess of 100kph may not show up. I stand corrected if incorrect.
Cheers.
Ken




Sent from Samsung tablet



-------- Original message --------
From: "Ken Garratt unclekenz@hotmail.com [Syncro_T3_Australia]" <Syncro_T3_Australia@yahoogroups.com>
Date: 28/05/2018 3:17 PM (GMT+10:00)
To: syncro_t3_australia@yahoogroups.com
Subject: Re: [Syncro_T3_Australia] Re: Syncro / VC / noise and vibes


Hi Gaetan,
Sure, if you so choose. Might get lucky.

There's been previous discussion here about replacing joints with a particular model designed more for agricultural use. Maybe not quite up to scratch but lacking an alternative. Not been there so can't help further, someone else may have more specific info.
Cheers.
Ken

From: lepews@me.com [Syncro_T3_Australia]
Sent: Monday, 28 May 1:35 PM
Subject: [Syncro_T3_Australia] Re: Syncro / VC / noise and vibes

I'm awaiting to hear from FDE - hopefully they will be able to help and that will solve my problem!

When you say having the uni's checked, do you mean the U-joints either end of the tail shaft?

And thanks to all who posted in this topic - all great advice and much appreciated!





--
Best regards, Scott Pitcher SPB Consulting
26

Peter, Mark, Scott ,...

I'm in Melbourne, the shafts are $490 plus courier (I sent 2 to Roger for about $70 with insurance Melb-Goulburn).

I have 3 ready and get can more made within a week or so. They are simple solid shafts with just serviceable uni's at either end, they are common 153X made by many including Dana Spicer.

Been meaning to put up a website up for them and other bits, need to pull my finger out.

Cheers Uwe


On 29/05/2018 1:37 PM, Peter Bellamy wanderingstar911@gmail.com [Syncro_T3_Australia] wrote:
Uwe
Hi there
I'd be interested mate.
How much?
Where are you?
Thanks
Peter Bellamy

On Tue, 29 May 2018, 1:33 pm 911Jack 911jack@gmail.com [Syncro_T3_Australia], <Syncro_T3_Australia@yahoogroups.com> wrote:

I have had some shafts made up just like the gowesty ones, solid shafts with grease nipples and common replaceable uni joints, if anyone is interested I still have a few. I've had mine in place for a year and done quite a few thousand K's with no issues or any vibrations.

Roger Bailey also has one in use. (Hi Roger)

I had the same issues with the original, changed to the agro uni joints, had it balanced, still had vibrations. Had the solid shafts made and haven't looked back.

Cheers, Uwe


On 28/05/2018 4:28 PM, Peter Bellamy wanderingstar911@gmail.com [Syncro_T3_Australia] wrote:

On Mon, 28 May 2018, 3:47 pm Ken Garratt unclekenz@hotmail.com [Syncro_T3_Australia], <Syncro_T3_Australia@yahoogroups.com> wrote:

Also,
I read somewhere that local refurbishers/balancers of the likes of tailshafts/propshafts do not have test equipment that maximum rotate any where near as far as our propshafts do. Limited to say 1000rpm. If valid, then your vibration coming in in excess of 100kph may not show up. I stand corrected if incorrect.
Cheers.
Ken




Sent from Samsung tablet



-------- Original message --------
From: "Ken Garratt unclekenz@hotmail.com [Syncro_T3_Australia]" <Syncro_T3_Australia@yahoogroups.com>
Date: 28/05/2018 3:17 PM (GMT+10:00)
To: syncro_t3_australia@yahoogroups.com
Subject: Re: [Syncro_T3_Australia] Re: Syncro / VC / noise and vibes


Hi Gaetan,
Sure, if you so choose. Might get lucky.

There's been previous discussion here about replacing joints with a particular model designed more for agricultural use. Maybe not quite up to scratch but lacking an alternative. Not been there so can't help further, someone else may have more specific info.
Cheers.
Ken

From: lepews@me.com [Syncro_T3_Australia]
Sent: Monday, 28 May 1:35 PM
Subject: [Syncro_T3_Australia] Re: Syncro / VC / noise and vibes

I'm awaiting to hear from FDE - hopefully they will be able to help and that will solve my problem!

When you say having the uni's checked, do you mean the U-joints either end of the tail shaft?

And thanks to all who posted in this topic - all great advice and much appreciated!





27

The rubber is a buffer for both longitudinal movement and rotation (hence the internal bush). A solid shaft would rely only on movement in the rubber mounts on the gear box/engine and front diff. So the rubber is an added place for movement and protection. They are still available new, so could be added to a locally made shaft??


As people note the internal bush wears out over time, I can only assume there is a lot of movement under load for that joint (or it would not wear out).


You would need to do a long term study on the life of uni joints and the bearings in the gear box and front diff compared to original to see if it is necessary or over design.


I would guess if you have a decoupler the need for the rubber buffer would be less than if you are in permanent AWD.


Richard

28
Hey Uwe. 

I’m interested as well depending on cost + freight to SeQLD. 

Cheers
Beau

Sent from my iPhone

On 29 May 2018, at 13:33, 911Jack 911jack@gmail.com [Syncro_T3_Australia] <Syncro_T3_Australia@yahoogroups.com> wrote:

 

I have had some shafts made up just like the gowesty ones, solid shafts with grease nipples and common replaceable uni joints, if anyone is interested I still have a few.  I've had mine in place for a year and done quite a few thousand K's with no issues or any vibrations.

Roger Bailey also has one in use. (Hi Roger)

I had the same issues with the original, changed to the agro uni joints, had it balanced, still had vibrations.  Had the solid shafts made and haven't looked back.

Cheers, Uwe


On 28/05/2018 4:28 PM, Peter Bellamy wanderingstar911@gmail.com [Syncro_T3_Australia] wrote:
 

On Mon, 28 May 2018, 3:47 pm Ken Garratt unclekenz@hotmail.com [Syncro_T3_Australia], <Syncro_T3_Australia@yahoogroups.com> wrote:
 

Also,
I read somewhere that local refurbishers/balancers of the likes of tailshafts/propshafts do not have test equipment that maximum rotate any where near as far as our propshafts do. Limited to say 1000rpm. If valid, then your vibration coming in in excess of 100kph may not show up. I stand corrected if incorrect.
Cheers.
Ken




Sent from Samsung tablet



-------- Original message --------
From: "Ken Garratt unclekenz@hotmail.com [Syncro_T3_Australia]" <Syncro_T3_Australia@yahoogroups.com>
Date: 28/05/2018 3:17 PM (GMT+10:00)
To: syncro_t3_australia@yahoogroups.com
Subject: Re: [Syncro_T3_Australia] Re: Syncro / VC / noise and vibes


 
Hi Gaetan,
Sure, if you so choose. Might get lucky.

There's been previous discussion here about replacing joints with a particular model designed more for agricultural use. Maybe not quite up to scratch but lacking an alternative. Not been there so can't help further, someone else may have more specific info.
Cheers.
Ken

From: lepews@me.com [Syncro_T3_Australia]
Sent: Monday, 28 May 1:35 PM
Subject: [Syncro_T3_Australia] Re: Syncro / VC / noise and vibes
 
I'm awaiting to hear from FDE - hopefully they will be able to help and that will solve my problem!

When you say having the uni's checked, do you mean the U-joints either end of the tail shaft? 

And thanks to all who posted in this topic - all great advice and much appreciated!




29
I would argue the validity of the original drive shaft with the rubber donut
If it is true that the other vehicles in the AWD range from VW were supplied with plain standard type drive shafts then why was it deemed necessary to fit something different to the Kombi range of vehicles.
I don't see the point of such a device.
Common vehicles such as Holden and Ford, Toyota, etc, with rear drive have had plain prop shafts for years.
Peter

On 29 May 2018 at 17:07, cathrich1@yahoo.com.au [Syncro_T3_Australia] <Syncro_T3_Australia@yahoogroups.com> wrote:

The rubber is a buffer for both longitudinal movement and rotation (hence the internal bush). A solid shaft would rely only on movement in the rubber mounts on the gear box/engine and front diff. So the rubber is an added place for movement and protection. They are still available new, so could be added to a locally made shaft??


As people note the internal bush wears out over time, I can only assume there is a lot of movement under load for that joint (or it would not wear out).


You would need to do a long term study on the life of uni joints and the bearings in the gear box and front diff compared to original to see if it is necessary or over design.


I would guess if you have a decoupler the need for the rubber buffer would be less than if you are in permanent AWD.


Richard




--
Peter Bellamy

Mobile 0498 382 602


30
Uwe
Sounds good mate.
I assume they come with flanges at each end to suit the VW coupling ?
Balanced, ready to roll?
put my name on one please.
Peter

On 29 May 2018 at 16:52, 911Jack 911jack@gmail.com [Syncro_T3_Australia] <Syncro_T3_Australia@yahoogroups.com> wrote:

Peter, Mark, Scott ,...

I'm in Melbourne, the shafts are $490 plus courier (I sent 2 to Roger for about $70 with insurance Melb-Goulburn).

I have 3 ready and get can more made within a week or so. They are simple solid shafts with just serviceable uni's at either end, they are common 153X made by many including Dana Spicer.

Been meaning to put up a website up for them and other bits, need to pull my finger out.

Cheers Uwe


On 29/05/2018 1:37 PM, Peter Bellamy wanderingstar911@gmail.com [Syncro_T3_Australia] wrote:
Uwe
Hi there
I'd be interested mate.
How much?
Where are you?
Thanks
Peter Bellamy

On Tue, 29 May 2018, 1:33 pm 911Jack 911jack@gmail.com [Syncro_T3_Australia], <Syncro_T3_Australia@ yahoogroups.com> wrote:

I have had some shafts made up just like the gowesty ones, solid shafts with grease nipples and common replaceable uni joints, if anyone is interested I still have a few. I've had mine in place for a year and done quite a few thousand K's with no issues or any vibrations.

Roger Bailey also has one in use. (Hi Roger)

I had the same issues with the original, changed to the agro uni joints, had it balanced, still had vibrations. Had the solid shafts made and haven't looked back.

Cheers, Uwe


On 28/05/2018 4:28 PM, Peter Bellamy wanderingstar911@gmail.com [Syncro_T3_Australia] wrote:

On Mon, 28 May 2018, 3:47 pm Ken Garratt unclekenz@hotmail.com [Syncro_T3_Australia], <Syncro_T3_Australia@ yahoogroups.com> wrote:

Also,
I read somewhere that local refurbishers/balancers of the likes of tailshafts/propshafts do not have test equipment that maximum rotate any where near as far as our propshafts do. Limited to say 1000rpm. If valid, then your vibration coming in in excess of 100kph may not show up. I stand corrected if incorrect.
Cheers.
Ken




Sent from Samsung tablet



-------- Original message --------
From: "Ken Garratt unclekenz@hotmail.com [Syncro_T3_Australia]" <Syncro_T3_Australia@ yahoogroups.com>
Date: 28/05/2018 3:17 PM (GMT+10:00)
To: syncro_t3_australia@ yahoogroups.com
Subject: Re: [Syncro_T3_Australia] Re: Syncro / VC / noise and vibes


Hi Gaetan,
Sure, if you so choose. Might get lucky.

There's been previous discussion here about replacing joints with a particular model designed more for agricultural use. Maybe not quite up to scratch but lacking an alternative. Not been there so can't help further, someone else may have more specific info.
Cheers.
Ken

From: lepews@me.com [Syncro_T3_Australia]
Sent: Monday, 28 May 1:35 PM
Subject: [Syncro_T3_Australia] Re: Syncro / VC / noise and vibes

I'm awaiting to hear from FDE - hopefully they will be able to help and that will solve my problem!

When you say having the uni's checked, do you mean the U-joints either end of the tail shaft?

And thanks to all who posted in this topic - all great advice and much appreciated!








--
Peter Bellamy

Mobile 0498 382 602


31

Peter, I'll add your name and yes they are ready to roll, just add your 8 bolts.

I'm interstate at the moment (putting more kms on the shaft), later this week we can work it out, might even have to order some more.

Uwe



On Tue, May 29, 2018 at 6:01 PM, Peter Bellamy wanderingstar911@gmail.com [Syncro_T3_Australia] <Syncro_T3_Australia@yahoogroups.com> wrote:

Uwe
Sounds good mate.
I assume they come with flanges at each end to suit the VW coupling ?
Balanced, ready to roll?
put my name on one please.
Peter

On 29 May 2018 at 16:52, 911Jack 911jack@gmail.com [Syncro_T3_Australia] <Syncro_T3_Australia@ yahoogroups.com> wrote:

Peter, Mark, Scott ,...

I'm in Melbourne, the shafts are $490 plus courier (I sent 2 to Roger for about $70 with insurance Melb-Goulburn).

I have 3 ready and get can more made within a week or so. They are simple solid shafts with just serviceable uni's at either end, they are common 153X made by many including Dana Spicer.

Been meaning to put up a website up for them and other bits, need to pull my finger out.

Cheers Uwe


On 29/05/2018 1:37 PM, Peter Bellamy wanderingstar911@gmail.com [Syncro_T3_Australia] wrote:
Uwe
Hi there
I'd be interested mate.
How much?
Where are you?
Thanks
Peter Bellamy

On Tue, 29 May 2018, 1:33 pm 911Jack 911jack@gmail.com [Syncro_T3_Australia], <Syncro_T3_Australia@yahoogrou ps.com> wrote:

I have had some shafts made up just like the gowesty ones, solid shafts with grease nipples and common replaceable uni joints, if anyone is interested I still have a few. I've had mine in place for a year and done quite a few thousand K's with no issues or any vibrations..

Roger Bailey also has one in use. (Hi Roger)

I had the same issues with the original, changed to the agro uni joints, had it balanced, still had vibrations. Had the solid shafts made and haven't looked back.

Cheers, Uwe


On 28/05/2018 4:28 PM, Peter Bellamy wanderingstar911@gmail.com [Syncro_T3_Australia] wrote:

On Mon, 28 May 2018, 3:47 pm Ken Garratt unclekenz@hotmail.com [Syncro_T3_Australia], <Syncro_T3_Australia@yahoogrou ps.com> wrote:

Also,
I read somewhere that local refurbishers/balancers of the likes of tailshafts/propshafts do not have test equipment that maximum rotate any where near as far as our propshafts do. Limited to say 1000rpm. If valid, then your vibration coming in in excess of 100kph may not show up. I stand corrected if incorrect.
Cheers.
Ken




Sent from Samsung tablet



-------- Original message --------
From: "Ken Garratt unclekenz@hotmail.com [Syncro_T3_Australia]" <Syncro_T3_Australia@yahoogrou ps.com>
Date: 28/05/2018 3:17 PM (GMT+10:00)
To: syncro_t3_australia@yahoogroup s.com
Subject: Re: [Syncro_T3_Australia] Re: Syncro / VC / noise and vibes


Hi Gaetan,
Sure, if you so choose. Might get lucky.

There's been previous discussion here about replacing joints with a particular model designed more for agricultural use. Maybe not quite up to scratch but lacking an alternative. Not been there so can't help further, someone else may have more specific info.
Cheers.
Ken

From: lepews@me.com [Syncro_T3_Australia]
Sent: Monday, 28 May 1:35 PM
Subject: [Syncro_T3_Australia] Re: Syncro / VC / noise and vibes

I'm awaiting to hear from FDE - hopefully they will be able to help and that will solve my problem!

When you say having the uni's checked, do you mean the U-joints either end of the tail shaft?

And thanks to all who posted in this topic - all great advice and much appreciated!








--
Peter Bellamy

Mobile 0498 382 602



32
Having used a balancer for work, you do not need to rotate the job at actual operating speed to balance it. You don't spin up a 300 kg amature to 3000 rpm, it get very dangerous. You spin it slower and your tolerances get smaller.

On Tuesday, 29 May 2018, 8:34:27 pm AEST, 911Jack 911jack@gmail.com [Syncro_T3_Australia] <Syncro_T3_Australia@yahoogroups.com> wrote:


 

Peter, I'll add your name and yes they are ready to roll, just add your 8 bolts.

I'm interstate at the moment (putting more kms on the shaft), later this week we can work it out, might even have to order some more.

Uwe



On Tue, May 29, 2018 at 6:01 PM, Peter Bellamy wanderingstar911@gmail.com [Syncro_T3_Australia] <Syncro_T3_Australia@yahoogroups.com> wrote:
 

Uwe
Sounds good mate.
I assume they come with flanges at each end to suit the VW coupling ?
Balanced, ready to roll?
put my name on one please.
Peter

On 29 May 2018 at 16:52, 911Jack 911jack@gmail.com [Syncro_T3_Australia] <Syncro_T3_Australia@ yahoogroups.com> wrote:
 

Peter, Mark, Scott ,...

I'm in Melbourne, the shafts are $490 plus courier (I sent 2 to Roger for about $70 with insurance Melb-Goulburn).

I have 3 ready and get can more made within a week or so.  They are simple solid shafts with just serviceable uni's at either end, they are common 153X made by many including Dana Spicer.

Been meaning to put up a website up for them and other bits, need to pull my finger out.

Cheers Uwe


On 29/05/2018 1:37 PM, Peter Bellamy wanderingstar911@gmail.com [Syncro_T3_Australia] wrote:
 
Uwe
Hi there
I'd be interested mate.
How much?
Where are you?
Thanks 
Peter Bellamy 

On Tue, 29 May 2018, 1:33 pm 911Jack 911jack@gmail.com [Syncro_T3_Australia], <Syncro_T3_Australia@yahoogrou ps.com> wrote:
 

I have had some shafts made up just like the gowesty ones, solid shafts with grease nipples and common replaceable uni joints, if anyone is interested I still have a few.  I've had mine in place for a year and done quite a few thousand K's with no issues or any vibrations...

Roger Bailey also has one in use. (Hi Roger)

I had the same issues with the original, changed to the agro uni joints, had it balanced, still had vibrations.  Had the solid shafts made and haven't looked back.

Cheers, Uwe


On 28/05/2018 4:28 PM, Peter Bellamy wanderingstar911@gmail.com [Syncro_T3_Australia] wrote:
 

On Mon, 28 May 2018, 3:47 pm Ken Garratt unclekenz@hotmail.com [Syncro_T3_Australia], <Syncro_T3_Australia@yahoogrou ps.com> wrote:
 

Also,
I read somewhere that local refurbishers/balancers of the likes of tailshafts/propshafts do not have test equipment that maximum rotate any where near as far as our propshafts do. Limited to say 1000rpm. If valid, then your vibration coming in in excess of 100kph may not show up. I stand corrected if incorrect.
Cheers.
Ken




Sent from Samsung tablet



-------- Original message --------
From: "Ken Garratt unclekenz@hotmail.com [Syncro_T3_Australia]" <Syncro_T3_Australia@yahoogrou ps.com>
Date: 28/05/2018 3:17 PM (GMT+10:00)
To: syncro_t3_australia@yahoogroup s.com
Subject: Re: [Syncro_T3_Australia] Re: Syncro / VC / noise and vibes


 
Hi Gaetan,
Sure, if you so choose. Might get lucky.

There's been previous discussion here about replacing joints with a particular model designed more for agricultural use. Maybe not quite up to scratch but lacking an alternative. Not been there so can't help further, someone else may have more specific info.
Cheers.
Ken

From: lepews@me.com [Syncro_T3_Australia]
Sent: Monday, 28 May 1:35 PM
Subject: [Syncro_T3_Australia] Re: Syncro / VC / noise and vibes
 
I'm awaiting to hear from FDE - hopefully they will be able to help and that will solve my problem!

When you say having the uni's checked, do you mean the U-joints either end of the tail shaft? 

And thanks to all who posted in this topic - all great advice and much appreciated!








--
Peter Bellamy

Mobile 0498 382 602



33
As far as I know, only the small amount of buffering in the VC is lost when fitting a solid shaft. The donut is still there on the propshaft doing its thing.
Ken




Sent from Samsung tablet



-------- Original message --------
From: "cathrich1@yahoo.com.au [Syncro_T3_Australia]" <Syncro_T3_Australia@yahoogroups.com>
Date: 29/05/2018 5:40 PM (GMT+10:00)
To: Syncro_T3_Australia@yahoogroups.com
Subject: Re: [Syncro_T3_Australia] Re: Syncro / VC / noise and vibes


 

The rubber is a buffer for both longitudinal movement and rotation (hence the internal bush). A solid shaft would rely only on movement in the rubber mounts on the gear box/engine and front diff. So the rubber is an added place for movement and protection. They are still available new, so could be added to a locally made shaft??


As people note the internal bush wears out over time, I can only assume there is a lot of movement under load for that joint (or it would not wear out).


You would need to do a long term study on the life of uni joints and the bearings in the gear box and front diff compared to original to see if it is necessary or over design.


I would guess if you have a decoupler the need for the rubber buffer would be less than if you are in permanent AWD.


Richard

34
Your right in the first instance Ken. Vibrations and impact. It wont assist with anything being out of alignment or out of round. Greg
35
Well I guess seeing as this is a hot topic that just keeps pooping up in my inbox I will add my experience and things I have learnt trying to sort my vibration in the last year.

But lets start with an opinion first, removing the donut will 100% add extra load to your gearbox bearings and the comment that holdens and such don't have them is rot too. It is true that vehicles with live rear axles don't have them, as they deflect during the up and down movement of the suspension. Most irs vehicles where the gearbox and diff do not move relative to each other have some version of this (called a guibo by the way) and those with 3 piece tailshafts, the center bearing is mounted in rubber. So in the world of higher Syncro gearbox prices do you really want to find out over a few hundred bucks whether it needs to be there?
The reason a solid shaft fixs your vibrations is because you have removed 4 of your wear items. (2 bushes inside, the spindle inside and the rubber donut) I would concider this a bandaid fix because it's cheaper.

So back to what I have learnt, the PTO cheap $30 uni's are 30mm x 70mm and have 12 needle bearings inside them. The specifed uni's at $270-340 are 30mm x 68.9mm and have 24 needle bearings inside. I have 2 of the cheap ones that show play after only 1000km.

The original specification for balancing the shaft was 6000rpm, which in todays terms doesnt mean anything except that it was done to a higher standard than what is seen as the norm. (Most balancing machines only go to 3000) BUT! having said that technology has come a long was since then and it is no longer a requirement to spin that fast as increased accuracy of sensors can simulate what will happen at the higher RPM. So what you are looking for when you see your driveshaft shop is the ISO standard to which they balance.
The standard for automotive shafts is G16, I have had mine done 3 times to this to still have a slight humming under the floor at over 85km. It seems that this is not enough and am currently having mine balanced to G6.3, I will get back to you with whether that is the winner.

With that in mind, if the original shaft was balanced to a higher standard, to think that you could get a good balance with a worn center bush, substandard uni or deteriorated donut is kidding yourself. To have the end cut of the prop shaft, to have an engineering shop remake the 2 bushes, grind the internal shaft round again, ream and reassemble cost me around $320.
The donut can be bought as a meyle product for $40-50 or as a BMW part for $240-650.

On to gearbox mounts, the mounts are trash by this age of the vehicle, they are super soft and aren't holding much (also throwing your tailshaft alignment way out). If you have vibrations that come and go at different speeds start here. The factory spec is 4 degrees included angle front and rear. Like mine you will find they are more like 2.5 and 5 due to the output/input ends sagging due to worn mounts. Even with the tailshaft out new mounts make a very noticible diffence to smoothness, shifting and clutch chatter. They can be found for between $40-60 ea and there are 10 of them, if the plastic spacers are damaged replace them while you are at it . lastly don't forget your engine mounts play on this too, check those.

How specific you want to be with your alignment between the front and rear boxes is up to you. Realistically uni's should get about 1 degree of misalignment without issue, so a quick string line should do the job,  concentrate your time on the angles instead.

I currently have the whole shebang laser straight within a few mm and the included angles within 0.1 of each other, A slow building hum is still presesnt. Fingers crossed my new balance sorts that out.



On Tue, 29 May 2018 at 9:03 PM, brent cartwright manxdune@yahoo.com.au [Syncro_T3_Australia]
<Syncro_T3_Australia@yahoogroups.com> wrote:
 

Having used a balancer for work, you do not need to rotate the job at actual operating speed to balance it. You don't spin up a 300 kg amature to 3000 rpm, it get very dangerous. You spin it slower and your tolerances get smaller.

On Tuesday, 29 May 2018, 8:34:27 pm AEST, 911Jack 911jack@gmail.com [Syncro_T3_Australia] <Syncro_T3_Australia@yahoogroups.com> wrote:


 

Peter, I'll add your name and yes they are ready to roll, just add your 8 bolts.

I'm interstate at the moment (putting more kms on the shaft), later this week we can work it out, might even have to order some more.

Uwe



On Tue, May 29, 2018 at 6:01 PM, Peter Bellamy wanderingstar911@gmail.com [Syncro_T3_Australia] <Syncro_T3_Australia@yahoogroups.com> wrote:
 

Uwe
Sounds good mate.
I assume they come with flanges at each end to suit the VW coupling ?
Balanced, ready to roll?
put my name on one please.
Peter

On 29 May 2018 at 16:52, 911Jack 911jack@gmail.com [Syncro_T3_Australia] <Syncro_T3_Australia@ yahoogroups.com> wrote:
 

Peter, Mark, Scott ,...

I'm in Melbourne, the shafts are $490 plus courier (I sent 2 to Roger for about $70 with insurance Melb-Goulburn).

I have 3 ready and get can more made within a week or so.  They are simple solid shafts with just serviceable uni's at either end, they are common 153X made by many including Dana Spicer.

Been meaning to put up a website up for them and other bits, need to pull my finger out.

Cheers Uwe


On 29/05/2018 1:37 PM, Peter Bellamy wanderingstar911@gmail.com [Syncro_T3_Australia] wrote:
 
Uwe
Hi there
I'd be interested mate.
How much?
Where are you?
Thanks 
Peter Bellamy 

On Tue, 29 May 2018, 1:33 pm 911Jack 911jack@gmail.com [Syncro_T3_Australia], <Syncro_T3_Australia@yahoogrou ps.com> wrote:
 

I have had some shafts made up just like the gowesty ones, solid shafts with grease nipples and common replaceable uni joints, if anyone is interested I still have a few.  I've had mine in place for a year and done quite a few thousand K's with no issues or any vibrations...

Roger Bailey also has one in use. (Hi Roger)

I had the same issues with the original, changed to the agro uni joints, had it balanced, still had vibrations.  Had the solid shafts made and haven't looked back.

Cheers, Uwe


On 28/05/2018 4:28 PM, Peter Bellamy wanderingstar911@gmail.com [Syncro_T3_Australia] wrote:
 

On Mon, 28 May 2018, 3:47 pm Ken Garratt unclekenz@hotmail.com [Syncro_T3_Australia], <Syncro_T3_Australia@yahoogrou ps.com> wrote:
 

Also,
I read somewhere that local refurbishers/balancers of the likes of tailshafts/propshafts do not have test equipment that maximum rotate any where near as far as our propshafts do. Limited to say 1000rpm. If valid, then your vibration coming in in excess of 100kph may not show up. I stand corrected if incorrect.
Cheers.
Ken




Sent from Samsung tablet



-------- Original message --------
From: "Ken Garratt unclekenz@hotmail.com [Syncro_T3_Australia]" <Syncro_T3_Australia@yahoogrou ps.com>
Date: 28/05/2018 3:17 PM (GMT+10:00)
To: syncro_t3_australia@yahoogroup s.com
Subject: Re: [Syncro_T3_Australia] Re: Syncro / VC / noise and vibes


 
Hi Gaetan,
Sure, if you so choose. Might get lucky.

There's been previous discussion here about replacing joints with a particular model designed more for agricultural use. Maybe not quite up to scratch but lacking an alternative. Not been there so can't help further, someone else may have more specific info.
Cheers.
Ken

From: lepews@me.com [Syncro_T3_Australia]
Sent: Monday, 28 May 1:35 PM
Subject: [Syncro_T3_Australia] Re: Syncro / VC / noise and vibes
 
I'm awaiting to hear from FDE - hopefully they will be able to help and that will solve my problem!

When you say having the uni's checked, do you mean the U-joints either end of the tail shaft? 

And thanks to all who posted in this topic - all great advice and much appreciated!








--
Peter Bellamy

Mobile 0498 382 602



36
Nils
An excellent article.
You put a lot of time and effort into writing.
But one thing,
If its true that other VW AWD vehicle's come with solid shafts then how do you explain this.?
Good stuff.
Peter

On Thu, 31 May 2018, 12:05 pm Nils Birkmann nilsbirkmann@yahoo.com [Syncro_T3_Australia], <Syncro_T3_Australia@yahoogroups.com> wrote:

Well I guess seeing as this is a hot topic that just keeps pooping up in my inbox I will add my experience and things I have learnt trying to sort my vibration in the last year.


But lets start with an opinion first, removing the donut will 100% add extra load to your gearbox bearings and the comment that holdens and such don't have them is rot too. It is true that vehicles with live rear axles don't have them, as they deflect during the up and down movement of the suspension. Most irs vehicles where the gearbox and diff do not move relative to each other have some version of this (called a guibo by the way) and those with 3 piece tailshafts, the center bearing is mounted in rubber. So in the world of higher Syncro gearbox prices do you really want to find out over a few hundred bucks whether it needs to be there?
The reason a solid shaft fixs your vibrations is because you have removed 4 of your wear items. (2 bushes inside, the spindle inside and the rubber donut) I would concider this a bandaid fix because it's cheaper.

So back to what I have learnt, the PTO cheap $30 uni's are 30mm x 70mm and have 12 needle bearings inside them. The specifed uni's at $270-340 are 30mm x 68.9mm and have 24 needle bearings inside. I have 2 of the cheap ones that show play after only 1000km.

The original specification for balancing the shaft was 6000rpm, which in todays terms doesnt mean anything except that it was done to a higher standard than what is seen as the norm. (Most balancing machines only go to 3000) BUT! having said that technology has come a long was since then and it is no longer a requirement to spin that fast as increased accuracy of sensors can simulate what will happen at the higher RPM. So what you are looking for when you see your driveshaft shop is the ISO standard to which they balance.
The standard for automotive shafts is G16, I have had mine done 3 times to this to still have a slight humming under the floor at over 85km. It seems that this is not enough and am currently having mine balanced to G6.3, I will get back to you with whether that is the winner.

With that in mind, if the original shaft was balanced to a higher standard, to think that you could get a good balance with a worn center bush, substandard uni or deteriorated donut is kidding yourself. To have the end cut of the prop shaft, to have an engineering shop remake the 2 bushes, grind the internal shaft round again, ream and reassemble cost me around $320.
The donut can be bought as a meyle product for $40-50 or as a BMW part for $240-650.

On to gearbox mounts, the mounts are trash by this age of the vehicle, they are super soft and aren't holding much (also throwing your tailshaft alignment way out). If you have vibrations that come and go at different speeds start here. The factory spec is 4 degrees included angle front and rear. Like mine you will find they are more like 2.5 and 5 due to the output/input ends sagging due to worn mounts. Even with the tailshaft out new mounts make a very noticible diffence to smoothness, shifting and clutch chatter. They can be found for between $40-60 ea and there are 10 of them, if the plastic spacers are damaged replace them while you are at it . lastly don't forget your engine mounts play on this too, check those.

How specific you want to be with your alignment between the front and rear boxes is up to you. Realistically uni's should get about 1 degree of misalignment without issue, so a quick string line should do the job, concentrate your time on the angles instead.

I currently have the whole shebang laser straight within a few mm and the included angles within 0.1 of each other, A slow building hum is still presesnt. Fingers crossed my new balance sorts that out.


Sent from Yahoo7 Mail on Android

On Tue, 29 May 2018 at 9:03 PM, brent cartwright manxdune@yahoo.com.au [Syncro_T3_Australia]

Having used a balancer for work, you do not need to rotate the job at actual operating speed to balance it. You don't spin up a 300 kg amature to 3000 rpm, it get very dangerous. You spin it slower and your tolerances get smaller.

On Tuesday, 29 May 2018, 8:34:27 pm AEST, 911Jack 911jack@gmail.com [Syncro_T3_Australia] <Syncro_T3_Australia@yahoogroups.com> wrote:


Peter, I'll add your name and yes they are ready to roll, just add your 8 bolts.

I'm interstate at the moment (putting more kms on the shaft), later this week we can work it out, might even have to order some more.

Uwe



On Tue, May 29, 2018 at 6:01 PM, Peter Bellamy wanderingstar911@gmail.com [Syncro_T3_Australia] <Syncro_T3_Australia@yahoogroups.com> wrote:

Uwe
Sounds good mate.
I assume they come with flanges at each end to suit the VW coupling ?
Balanced, ready to roll?
put my name on one please.
Peter

On 29 May 2018 at 16:52, 911Jack 911jack@gmail.com [Syncro_T3_Australia] <Syncro_T3_Australia@ yahoogroups.com> wrote:

Peter, Mark, Scott ,...

I'm in Melbourne, the shafts are $490 plus courier (I sent 2 to Roger for about $70 with insurance Melb-Goulburn).

I have 3 ready and get can more made within a week or so. They are simple solid shafts with just serviceable uni's at either end, they are common 153X made by many including Dana Spicer.

Been meaning to put up a website up for them and other bits, need to pull my finger out.

Cheers Uwe


On 29/05/2018 1:37 PM, Peter Bellamy wanderingstar911@gmail.com [Syncro_T3_Australia] wrote:
Uwe
Hi there
I'd be interested mate.
How much?
Where are you?
Thanks
Peter Bellamy

On Tue, 29 May 2018, 1:33 pm 911Jack 911jack@gmail.com [Syncro_T3_Australia], <Syncro_T3_Australia@yahoogrou ps.com> wrote:

I have had some shafts made up just like the gowesty ones, solid shafts with grease nipples and common replaceable uni joints, if anyone is interested I still have a few. I've had mine in place for a year and done quite a few thousand K's with no issues or any vibrations...

Roger Bailey also has one in use. (Hi Roger)

I had the same issues with the original, changed to the agro uni joints, had it balanced, still had vibrations. Had the solid shafts made and haven't looked back.

Cheers, Uwe


On 28/05/2018 4:28 PM, Peter Bellamy wanderingstar911@gmail.com [Syncro_T3_Australia] wrote:

On Mon, 28 May 2018, 3:47 pm Ken Garratt unclekenz@hotmail.com [Syncro_T3_Australia], <Syncro_T3_Australia@yahoogrou ps.com> wrote:

Also,
I read somewhere that local refurbishers/balancers of the likes of tailshafts/propshafts do not have test equipment that maximum rotate any where near as far as our propshafts do. Limited to say 1000rpm. If valid, then your vibration coming in in excess of 100kph may not show up. I stand corrected if incorrect.
Cheers.
Ken




Sent from Samsung tablet



-------- Original message --------
From: "Ken Garratt unclekenz@hotmail.com [Syncro_T3_Australia]" <Syncro_T3_Australia@yahoogrou ps.com>
Date: 28/05/2018 3:17 PM (GMT+10:00)
To: syncro_t3_australia@yahoogroup s.com
Subject: Re: [Syncro_T3_Australia] Re: Syncro / VC / noise and vibes


Hi Gaetan,
Sure, if you so choose. Might get lucky.

There's been previous discussion here about replacing joints with a particular model designed more for agricultural use. Maybe not quite up to scratch but lacking an alternative. Not been there so can't help further, someone else may have more specific info.
Cheers.
Ken

From: lepews@me.com [Syncro_T3_Australia]
Sent: Monday, 28 May 1:35 PM
Subject: [Syncro_T3_Australia] Re: Syncro / VC / noise and vibes

I'm awaiting to hear from FDE - hopefully they will be able to help and that will solve my problem!

When you say having the uni's checked, do you mean the U-joints either end of the tail shaft?

And thanks to all who posted in this topic - all great advice and much appreciated!








--
Peter Bellamy

Mobile 0498 382 602



37
No idea Peter, 

That said I have not seen one, can anyone actually confirm that the SINKA and DOKA did not have the donut? 

Or is this an rumour, myth or bedtime story gowesty tell young syncro owners to sell straight shafts?


On Thu, 31 May 2018 at 12:08 PM, Nils Birkmann nilsbirkmann@yahoo.com [Syncro_T3_Australia]
<Syncro_T3_Australia@yahoogroups.com> wrote:
 

Well I guess seeing as this is a hot topic that just keeps pooping up in my inbox I will add my experience and things I have learnt trying to sort my vibration in the last year.


But lets start with an opinion first, removing the donut will 100% add extra load to your gearbox bearings and the comment that holdens and such don't have them is rot too. It is true that vehicles with live rear axles don't have them, as they deflect during the up and down movement of the suspension. Most irs vehicles where the gearbox and diff do not move relative to each other have some version of this (called a guibo by the way) and those with 3 piece tailshafts, the center bearing is mounted in rubber. So in the world of higher Syncro gearbox prices do you really want to find out over a few hundred bucks whether it needs to be there?
The reason a solid shaft fixs your vibrations is because you have removed 4 of your wear items. (2 bushes inside, the spindle inside and the rubber donut) I would concider this a bandaid fix because it's cheaper.

So back to what I have learnt, the PTO cheap $30 uni's are 30mm x 70mm and have 12 needle bearings inside them. The specifed uni's at $270-340 are 30mm x 68.9mm and have 24 needle bearings inside. I have 2 of the cheap ones that show play after only 1000km.

The original specification for balancing the shaft was 6000rpm, which in todays terms doesnt mean anything except that it was done to a higher standard than what is seen as the norm. (Most balancing machines only go to 3000) BUT! having said that technology has come a long was since then and it is no longer a requirement to spin that fast as increased accuracy of sensors can simulate what will happen at the higher RPM. So what you are looking for when you see your driveshaft shop is the ISO standard to which they balance.
The standard for automotive shafts is G16, I have had mine done 3 times to this to still have a slight humming under the floor at over 85km. It seems that this is not enough and am currently having mine balanced to G6.3, I will get back to you with whether that is the winner.

With that in mind, if the original shaft was balanced to a higher standard, to think that you could get a good balance with a worn center bush, substandard uni or deteriorated donut is kidding yourself. To have the end cut of the prop shaft, to have an engineering shop remake the 2 bushes, grind the internal shaft round again, ream and reassemble cost me around $320.
The donut can be bought as a meyle product for $40-50 or as a BMW part for $240-650.

On to gearbox mounts, the mounts are trash by this age of the vehicle, they are super soft and aren't holding much (also throwing your tailshaft alignment way out). If you have vibrations that come and go at different speeds start here. The factory spec is 4 degrees included angle front and rear. Like mine you will find they are more like 2.5 and 5 due to the output/input ends sagging due to worn mounts. Even with the tailshaft out new mounts make a very noticible diffence to smoothness, shifting and clutch chatter. They can be found for between $40-60 ea and there are 10 of them, if the plastic spacers are damaged replace them while you are at it . lastly don't forget your engine mounts play on this too, check those.

How specific you want to be with your alignment between the front and rear boxes is up to you. Realistically uni's should get about 1 degree of misalignment without issue, so a quick string line should do the job,  concentrate your time on the angles instead.

I currently have the whole shebang laser straight within a few mm and the included angles within 0.1 of each other, A slow building hum is still presesnt. Fingers crossed my new balance sorts that out.



On Tue, 29 May 2018 at 9:03 PM, brent cartwright manxdune@yahoo.com.au [Syncro_T3_Australia]
<Syncro_T3_Australia@yahoogroups.com> wrote:
 

Having used a balancer for work, you do not need to rotate the job at actual operating speed to balance it. You don't spin up a 300 kg amature to 3000 rpm, it get very dangerous. You spin it slower and your tolerances get smaller.

On Tuesday, 29 May 2018, 8:34:27 pm AEST, 911Jack 911jack@gmail.com [Syncro_T3_Australia] <Syncro_T3_Australia@yahoogroups.com> wrote:


 

Peter, I'll add your name and yes they are ready to roll, just add your 8 bolts.

I'm interstate at the moment (putting more kms on the shaft), later this week we can work it out, might even have to order some more.

Uwe



On Tue, May 29, 2018 at 6:01 PM, Peter Bellamy wanderingstar911@gmail.com [Syncro_T3_Australia] <Syncro_T3_Australia@yahoogroups.com> wrote:
 

Uwe
Sounds good mate.
I assume they come with flanges at each end to suit the VW coupling ?
Balanced, ready to roll?
put my name on one please.
Peter

On 29 May 2018 at 16:52, 911Jack 911jack@gmail.com [Syncro_T3_Australia] <Syncro_T3_Australia@ yahoogroups.com> wrote:
 

Peter, Mark, Scott ,...

I'm in Melbourne, the shafts are $490 plus courier (I sent 2 to Roger for about $70 with insurance Melb-Goulburn).

I have 3 ready and get can more made within a week or so.  They are simple solid shafts with just serviceable uni's at either end, they are common 153X made by many including Dana Spicer.

Been meaning to put up a website up for them and other bits, need to pull my finger out.

Cheers Uwe


On 29/05/2018 1:37 PM, Peter Bellamy wanderingstar911@gmail.com [Syncro_T3_Australia] wrote:
 
Uwe
Hi there
I'd be interested mate.
How much?
Where are you?
Thanks 
Peter Bellamy 

On Tue, 29 May 2018, 1:33 pm 911Jack 911jack@gmail.com [Syncro_T3_Australia], <Syncro_T3_Australia@yahoogrou ps.com> wrote:
 

I have had some shafts made up just like the gowesty ones, solid shafts with grease nipples and common replaceable uni joints, if anyone is interested I still have a few.  I've had mine in place for a year and done quite a few thousand K's with no issues or any vibrations...

Roger Bailey also has one in use. (Hi Roger)

I had the same issues with the original, changed to the agro uni joints, had it balanced, still had vibrations.  Had the solid shafts made and haven't looked back.

Cheers, Uwe


On 28/05/2018 4:28 PM, Peter Bellamy wanderingstar911@gmail.com [Syncro_T3_Australia] wrote:
 

On Mon, 28 May 2018, 3:47 pm Ken Garratt unclekenz@hotmail.com [Syncro_T3_Australia], <Syncro_T3_Australia@yahoogrou ps.com> wrote:
 

Also,
I read somewhere that local refurbishers/balancers of the likes of tailshafts/propshafts do not have test equipment that maximum rotate any where near as far as our propshafts do. Limited to say 1000rpm. If valid, then your vibration coming in in excess of 100kph may not show up. I stand corrected if incorrect.
Cheers.
Ken




Sent from Samsung tablet



-------- Original message --------
From: "Ken Garratt unclekenz@hotmail.com [Syncro_T3_Australia]" <Syncro_T3_Australia@yahoogrou ps.com>
Date: 28/05/2018 3:17 PM (GMT+10:00)
To: syncro_t3_australia@yahoogroup s.com
Subject: Re: [Syncro_T3_Australia] Re: Syncro / VC / noise and vibes


 
Hi Gaetan,
Sure, if you so choose. Might get lucky.

There's been previous discussion here about replacing joints with a particular model designed more for agricultural use. Maybe not quite up to scratch but lacking an alternative. Not been there so can't help further, someone else may have more specific info.
Cheers.
Ken

From: lepews@me.com [Syncro_T3_Australia]
Sent: Monday, 28 May 1:35 PM
Subject: [Syncro_T3_Australia] Re: Syncro / VC / noise and vibes
 
I'm awaiting to hear from FDE - hopefully they will be able to help and that will solve my problem!

When you say having the uni's checked, do you mean the U-joints either end of the tail shaft? 

And thanks to all who posted in this topic - all great advice and much appreciated!








--
Peter Bellamy

Mobile 0498 382 602



38

Hi Nils,

Thanks a lot for the great post.


So you must be tickled pink reading GoWesty's description/comment here ...

Goto: http://www.gowesty.com/product/transaxle-drivetrain/23382/syncro-drive-shaft-new-?v=


Just a point of clarification to all, particularly newbies, confused about which shaft, of which syncro has many, is what is particularly being spoken of here without pictures or part numbers ....
Nomenclature in ETKA parts catalogue in the context of T3 syncro is "propeller shaft", which delivers drive effort to the front, unlike a tail shaft that delivers drive effort, you guessed it, to the tail on other vehicles.

So for T3 syncro, if we all say "propeller shaft", heh we're all on the same page.

Cheers.
Ken 




From: Syncro_T3_Australia@yahoogroups.com <Syncro_T3_Australia@yahoogroups.com> on behalf of Peter Bellamy wanderingstar911@gmail.com [Syncro_T3_Australia] <Syncro_T3_Australia@yahoogroups.com>
Sent: Thursday, 31 May 2018 12:16 PM
To: Syncro_T3_Australia@yahoogroups.com
Subject: Re: [Syncro_T3_Australia] Re: Syncro / VC / noise and vibes
 
 

Nils
An excellent article.
You put a lot of time and effort into writing. 
But one thing,
If its true that other VW AWD vehicle's come with solid shafts then how do you explain this.?
Good stuff.
Peter 

On Thu, 31 May 2018, 12:05 pm Nils Birkmann nilsbirkmann@yahoo.com [Syncro_T3_Australia], <Syncro_T3_Australia@yahoogroups.com> wrote:
 

Well I guess seeing as this is a hot topic that just keeps pooping up in my inbox I will add my experience and things I have learnt trying to sort my vibration in the last year.


But lets start with an opinion first, removing the donut will 100% add extra load to your gearbox bearings and the comment that holdens and such don't have them is rot too. It is true that vehicles with live rear axles don't have them, as they deflect during the up and down movement of the suspension. Most irs vehicles where the gearbox and diff do not move relative to each other have some version of this (called a guibo by the way) and those with 3 piece tailshafts, the center bearing is mounted in rubber. So in the world of higher Syncro gearbox prices do you really want to find out over a few hundred bucks whether it needs to be there?
The reason a solid shaft fixs your vibrations is because you have removed 4 of your wear items. (2 bushes inside, the spindle inside and the rubber donut) I would concider this a bandaid fix because it's cheaper.

So back to what I have learnt, the PTO cheap $30 uni's are 30mm x 70mm and have 12 needle bearings inside them. The specifed uni's at $270-340 are 30mm x 68.9mm and have 24 needle bearings inside. I have 2 of the cheap ones that show play after only 1000km.

The original specification for balancing the shaft was 6000rpm, which in todays terms doesnt mean anything except that it was done to a higher standard than what is seen as the norm. (Most balancing machines only go to 3000) BUT! having said that technology has come a long was since then and it is no longer a requirement to spin that fast as increased accuracy of sensors can simulate what will happen at the higher RPM. So what you are looking for when you see your driveshaft shop is the ISO standard to which they balance.
The standard for automotive shafts is G16, I have had mine done 3 times to this to still have a slight humming under the floor at over 85km. It seems that this is not enough and am currently having mine balanced to G6.3, I will get back to you with whether that is the winner.

With that in mind, if the original shaft was balanced to a higher standard, to think that you could get a good balance with a worn center bush, substandard uni or deteriorated donut is kidding yourself. To have the end cut of the prop shaft, to have an engineering shop remake the 2 bushes, grind the internal shaft round again, ream and reassemble cost me around $320.
The donut can be bought as a meyle product for $40-50 or as a BMW part for $240-650.

On to gearbox mounts, the mounts are trash by this age of the vehicle, they are super soft and aren't holding much (also throwing your tailshaft alignment way out). If you have vibrations that come and go at different speeds start here. The factory spec is 4 degrees included angle front and rear. Like mine you will find they are more like 2.5 and 5 due to the output/input ends sagging due to worn mounts. Even with the tailshaft out new mounts make a very noticible diffence to smoothness, shifting and clutch chatter. They can be found for between $40-60 ea and there are 10 of them, if the plastic spacers are damaged replace them while you are at it . lastly don't forget your engine mounts play on this too, check those.

How specific you want to be with your alignment between the front and rear boxes is up to you. Realistically uni's should get about 1 degree of misalignment without issue, so a quick string line should do the job,  concentrate your time on the angles instead.

I currently have the whole shebang laser straight within a few mm and the included angles within 0.1 of each other, A slow building hum is still presesnt. Fingers crossed my new balance sorts that out.


Sent from Yahoo7 Mail on Android

On Tue, 29 May 2018 at 9:03 PM, brent cartwright manxdune@yahoo.com.au [Syncro_T3_Australia]
 

Having used a balancer for work, you do not need to rotate the job at actual operating speed to balance it. You don't spin up a 300 kg amature to 3000 rpm, it get very dangerous. You spin it slower and your tolerances get smaller.

On Tuesday, 29 May 2018, 8:34:27 pm AEST, 911Jack 911jack@gmail.com [Syncro_T3_Australia] <Syncro_T3_Australia@yahoogroups.com> wrote:


 

Peter, I'll add your name and yes they are ready to roll, just add your 8 bolts.

I'm interstate at the moment (putting more kms on the shaft), later this week we can work it out, might even have to order some more.

Uwe



On Tue, May 29, 2018 at 6:01 PM, Peter Bellamy wanderingstar911@gmail.com [Syncro_T3_Australia] <Syncro_T3_Australia@yahoogroups.com> wrote:
 

Uwe
Sounds good mate.
I assume they come with flanges at each end to suit the VW coupling ?
Balanced, ready to roll?
put my name on one please.
Peter

On 29 May 2018 at 16:52, 911Jack 911jack@gmail.com [Syncro_T3_Australia] <Syncro_T3_Australia@ yahoogroups.com> wrote:
 

Peter, Mark, Scott ,...

I'm in Melbourne, the shafts are $490 plus courier (I sent 2 to Roger for about $70 with insurance Melb-Goulburn).

I have 3 ready and get can more made within a week or so.  They are simple solid shafts with just serviceable uni's at either end, they are common 153X made by many including Dana Spicer.

Been meaning to put up a website up for them and other bits, need to pull my finger out.

Cheers Uwe
On 29/05/2018 1:37 PM, Peter Bellamy wanderingstar911@gmail.com [Syncro_T3_Australia] wrote:
 
Uwe
Hi there
I'd be interested mate.
How much?
Where are you?
Thanks 
Peter Bellamy 

On Tue, 29 May 2018, 1:33 pm 911Jack 911jack@gmail.com [Syncro_T3_Australia], <Syncro_T3_Australia@yahoogrou ps.com> wrote:
 

I have had some shafts made up just like the gowesty ones, solid shafts with grease nipples and common replaceable uni joints, if anyone is interested I still have a few.  I've had mine in place for a year and done quite a few thousand K's with no issues or any vibrations....

Roger Bailey also has one in use. (Hi Roger)

I had the same issues with the original, changed to the agro uni joints, had it balanced, still had vibrations.  Had the solid shafts made and haven't looked back.

Cheers, Uwe


On 28/05/2018 4:28 PM, Peter Bellamy wanderingstar911@gmail.com [Syncro_T3_Australia] wrote:
 

On Mon, 28 May 2018, 3:47 pm Ken Garratt unclekenz@hotmail.com [Syncro_T3_Australia], <Syncro_T3_Australia@yahoogrou ps.com> wrote:
 

Also,
I read somewhere that local refurbishers/balancers of the likes of tailshafts/propshafts do not have test equipment that maximum rotate any where near as far as our propshafts do. Limited to say 1000rpm. If valid, then your vibration coming in in excess of 100kph may not show up. I stand corrected if incorrect.
Cheers.
Ken




Sent from Samsung tablet



-------- Original message --------
From: "Ken Garratt unclekenz@hotmail.com [Syncro_T3_Australia]" <Syncro_T3_Australia@yahoogrou ps.com>
Date: 28/05/2018 3:17 PM (GMT+10:00)
To: syncro_t3_australia@yahoogroup s.com
Subject: Re: [Syncro_T3_Australia] Re: Syncro / VC / noise and vibes


 
Hi Gaetan,
Sure, if you so choose. Might get lucky.

There's been previous discussion here about replacing joints with a particular model designed more for agricultural use. Maybe not quite up to scratch but lacking an alternative. Not been there so can't help further, someone else may have more specific info.
Cheers.
Ken

From: lepews@me.com [Syncro_T3_Australia]
Sent: Monday, 28 May 1:35 PM
Subject: [Syncro_T3_Australia] Re: Syncro / VC / noise and vibes
 
I'm awaiting to hear from FDE - hopefully they will be able to help and that will solve my problem!

When you say having the uni's checked, do you mean the U-joints either end of the tail shaft? 

And thanks to all who posted in this topic - all great advice and much appreciated!








--
Peter Bellamy

Mobile 0498 382 602



39
Here is our all new GoWesty driveshaft without the rubber "donut." VW offered a simpler design that was nothing more than a precision drive shaft with a U-joint at each end. The VW trucks were commonly fitted with these.

VW trucks eg "LT" had live axles.
40
Hi Uwe,

How much for a courier to NSW Central Coast?

Have you tried Ego Couriers?

I could pick it up from the Central Coast depot in Berkeley Vale.

Please advise.

Thanks,

Scott

On 29/05/2018 4:52 PM, 911Jack 911jack@gmail.com [Syncro_T3_Australia] wrote:

Peter, Mark, Scott ,...

I'm in Melbourne, the shafts are $490 plus courier (I sent 2 to Roger for about $70 with insurance Melb-Goulburn).

I have 3 ready and get can more made within a week or so. They are simple solid shafts with just serviceable uni's at either end, they are common 153X made by many including Dana Spicer.

Been meaning to put up a website up for them and other bits, need to pull my finger out.

Cheers Uwe


On 29/05/2018 1:37 PM, Peter Bellamy wanderingstar911@gmail.com [Syncro_T3_Australia] wrote:
Uwe
Hi there
I'd be interested mate.
How much?
Where are you?
Thanks
Peter Bellamy

On Tue, 29 May 2018, 1:33 pm 911Jack 911jack@gmail.com [Syncro_T3_Australia], <Syncro_T3_Australia@yahoogroups.com> wrote:

I have had some shafts made up just like the gowesty ones, solid shafts with grease nipples and common replaceable uni joints, if anyone is interested I still have a few. I've had mine in place for a year and done quite a few thousand K's with no issues or any vibrations.

Roger Bailey also has one in use. (Hi Roger)

I had the same issues with the original, changed to the agro uni joints, had it balanced, still had vibrations. Had the solid shafts made and haven't looked back.

Cheers, Uwe


On 28/05/2018 4:28 PM, Peter Bellamy wanderingstar911@gmail.com [Syncro_T3_Australia] wrote:

On Mon, 28 May 2018, 3:47 pm Ken Garratt unclekenz@hotmail.com [Syncro_T3_Australia], <Syncro_T3_Australia@yahoogroups.com> wrote:

Also,
I read somewhere that local refurbishers/balancers of the likes of tailshafts/propshafts do not have test equipment that maximum rotate any where near as far as our propshafts do. Limited to say 1000rpm. If valid, then your vibration coming in in excess of 100kph may not show up. I stand corrected if incorrect.
Cheers.
Ken




Sent from Samsung tablet



-------- Original message --------
From: "Ken Garratt unclekenz@hotmail.com [Syncro_T3_Australia]" <Syncro_T3_Australia@yahoogroups.com>
Date: 28/05/2018 3:17 PM (GMT+10:00)
To: syncro_t3_australia@yahoogroups.com
Subject: Re: [Syncro_T3_Australia] Re: Syncro / VC / noise and vibes


Hi Gaetan,
Sure, if you so choose. Might get lucky.

There's been previous discussion here about replacing joints with a particular model designed more for agricultural use. Maybe not quite up to scratch but lacking an alternative. Not been there so can't help further, someone else may have more specific info.
Cheers.
Ken

From: lepews@me.com [Syncro_T3_Australia]
Sent: Monday, 28 May 1:35 PM
Subject: [Syncro_T3_Australia] Re: Syncro / VC / noise and vibes

I'm awaiting to hear from FDE - hopefully they will be able to help and that will solve my problem!

When you say having the uni's checked, do you mean the U-joints either end of the tail shaft?

And thanks to all who posted in this topic - all great advice and much appreciated!






--
Best regards, Scott Pitcher SPB Consulting