Gearbox Delights

1

Wrote my post about the gearbox rebuild too early. Here is the summary:

All went well after the box went back in. Drove the van around Port Mac for a month with no issues. Then went on a road trip via the South Coast to Melbourne. First 400 KM to Sydney, no worries. Then around the Coast, Berri, Kiama and down to Culburra Beach. Then down to Eden. All good. A happy VW owner at the wheel. At this stage the new box had done about 1000 kms. Then on the way from Eden to Lakes Entrance it suddenly pops out of 4th gear. Does it again and again. I go into third and then back into 4th often. Got into Melbourne after it happened again a few times and I kept holding it in 4th. My left arm has strong muscles as a result!!

A week idle for the van while I flew to Hobart, then drove  back from Melb to Queanbeyan. Took note that it was more prevalent when first being used and then less likely to come out when everything warmed up. On 19 Jan drove from Queanbeyan to Port Mac. Left it alone and it jumped out once early on. After holding it for a few KMs I let go and we drove all the way home to Port Mac and it did not jump out once!!!

Have just spent 3 hours with our local expert VW mechanic friend trying to adjust the linkage in case that was the issue. Adjusting at the spline in the middle of the drive train. What fun. It kept jumping out and then he must have gone to far because after about 30 adjustments to and fro we now have reverse, 3rd and 4th but no 1st or second. I am so fearful that the the issue is the box and we have to take it out again.

I have trawled the various VW web sites for days and many others have had the same problem, particularly after a rebuild but I am yet to find a solution.

We will try again tomorrow afternoon to get all gears working. If not, despair!!!

Our tactics are to get everything right and eliminate other possibilities and if it still happens then its the gearbox. After all, why did it suddenly start to happen?? One issue is that the rear bellows appears to be overly compressed in 4th. But 2nd is rock solid and nothing we can do makes it pop out of second

Sorry to post such a negative story but it has been a long day under the van!!!!!

Peter from Port


2
Sounds bad Peter,

Jumping out of gear has always ended up being a gearbox issue in my experience.

My brother bought a "fully recoed" beetle gearbox for his splitty and it did exactly the same thing - jumped out of fourth.

Who did the gearbox re-build? Ronnie?

Cheers,

Skot


On 24/01/2015 8:48 PM, peter@coeconsult.com.au [Syncro_T3_Australia] wrote:

Wrote my post about the gearbox rebuild too early. Here is the summary:

All went well after the box went back in. Drove the van around Port Mac for a month with no issues. Then went on a road trip via the South Coast to Melbourne. First 400 KM to Sydney, no worries. Then around the Coast, Berri, Kiama and down to Culburra Beach. Then down to Eden. All good. A happy VW owner at the wheel. At this stage the new box had done about 1000 kms. Then on the way from Eden to Lakes Entrance it suddenly pops out of 4th gear. Does it again and again. I go into third and then back into 4th often. Got into Melbourne after it happened again a few times and I kept holding it in 4th. My left arm has strong muscles as a result!!

A week idle for the van while I flew to Hobart, then drove back from Melb to Queanbeyan. Took note that it was more prevalent when first being used and then less likely to come out when everything warmed up. On 19 Jan drove from Queanbeyan to Port Mac. Left it alone and it jumped out once early on. After holding it for a few KMs I let go and we drove all the way home to Port Mac and it did not jump out once!!!

Have just spent 3 hours with our local expert VW mechanic friend trying to adjust the linkage in case that was the issue. Adjusting at the spline in the middle of the drive train. What fun. It kept jumping out and then he must have gone to far because after about 30 adjustments to and fro we now have reverse, 3rd and 4th but no 1st or second. I am so fearful that the the issue is the box and we have to take it out again.

I have trawled the various VW web sites for days and many others have had the same problem, particularly after a rebuild but I am yet to find a solution.

We will try again tomorrow afternoon to get all gears working. If not, despair!!!

Our tactics are to get everything right and eliminate other possibilities and if it still happens then its the gearbox. After all, why did it suddenly start to happen?? One issue is that the rear bellows appears to be overly compressed in 4th. But 2nd is rock solid and nothing we can do makes it pop out of second

Sorry to post such a negative story but it has been a long day under the van!!!!!

Peter from Port



3
Peter, sorry to hear you are having trouble. If you want to prove conclusively that it be g/box or linkage try this. Get the bus to the top of a hill, put it in fourth and then get under the van, disconnect the linkage and strap it out of the way. Now roll for a bit and ride the clutch for a bit get it up to speed and see if it falls out of gear. Try being a bit harsh with the throttle, full throttle and back off, repeatedly. This is the only way you can go back to a gearbox builder and say it is DEFINATELY in the gearbox. Was a new fourth gear fitted? It is usually face of the teeth of a gear that will cause it to pop out. If you need a new one you will have a choice of ratios and manufacturers. Greg
 
From: "peter@coeconsult.com.au [Syncro_T3_Australia]" <Syncro_T3_Australia@yahoogroups.com>
To: Syncro_T3_Australia@yahoogroups.com
Sent: Saturday, 24 January 2015, 20:48
Subject: [Syncro_T3_Australia] Gearbox Delights

 
Wrote my post about the gearbox rebuild too early. Here is the summary:
All went well after the box went back in. Drove the van around Port Mac for a month with no issues. Then went on a road trip via the South Coast to Melbourne. First 400 KM to Sydney, no worries. Then around the Coast, Berri, Kiama and down to Culburra Beach. Then down to Eden. All good. A happy VW owner at the wheel. At this stage the new box had done about 1000 kms. Then on the way from Eden to Lakes Entrance it suddenly pops out of 4th gear. Does it again and again. I go into third and then back into 4th often. Got into Melbourne after it happened again a few times and I kept holding it in 4th. My left arm has strong muscles as a result!!
A week idle for the van while I flew to Hobart, then drove  back from Melb to Queanbeyan. Took note that it was more prevalent when first being used and then less likely to come out when everything warmed up. On 19 Jan drove from Queanbeyan to Port Mac. Left it alone and it jumped out once early on. After holding it for a few KMs I let go and we drove all the way home to Port Mac and it did not jump out once!!!
Have just spent 3 hours with our local expert VW mechanic friend trying to adjust the linkage in case that was the issue. Adjusting at the spline in the middle of the drive train. What fun. It kept jumping out and then he must have gone to far because after about 30 adjustments to and fro we now have reverse, 3rd and 4th but no 1st or second. I am so fearful that the the issue is the box and we have to take it out again.
I have trawled the various VW web sites for days and many others have had the same problem, particularly after a rebuild but I am yet to find a solution.
We will try again tomorrow afternoon to get all gears working. If not, despair!!!
Our tactics are to get everything right and eliminate other possibilities and if it still happens then its the gearbox. After all, why did it suddenly start to happen?? One issue is that the rear bellows appears to be overly compressed in 4th. But 2nd is rock solid and nothing we can do makes it pop out of second
Sorry to post such a negative story but it has been a long day under the van!!!!!
Peter from Port



4

Thanks Greg. Great advice. We will try that out. Tomorrow. Ron did not put in a new gear as said they were all in good condition.

Cheers, Peter

 

Ph:   02 6582 4650

Mob:   0400 998 917

Email:  peter@coeconsult.com.au

Web:   http://www.coeconsult.com.au/

 

20 Calwalla Crescent

Port Macquarie NSW 2444

 

5
Hopefully it is just a linkage adjustment. It is a very common thing that happens after a rebuild. You clean all the sludge up and fill with fresh oil and suddenly you have a problem with a gear that worked well before. Greg
  https://weddleindustries.com/search/site/094%204th?f[0]=im_field_transaxle_type%3A1000358&retain-filters=1
From: "'Peter Coe' peter@coeconsult.com.au [Syncro_T3_Australia]" <Syncro_T3_Australia@yahoogroups.com>
To: Syncro_T3_Australia@yahoogroups.com
Sent: Saturday, 24 January 2015, 21:25
Subject: RE: [Syncro_T3_Australia] Gearbox Delights

 
Thanks Greg. Great advice. We will try that out. Tomorrow. Ron did not put in a new gear as said they were all in good condition.
Cheers, Peter
 
Ph:   02 6582 4650
Mob:   0400 998 917
Email:  peter@coeconsult.com.au
Web:   http://www.coeconsult.com.au/
 
20 Calwalla Crescent
Port Macquarie NSW 2444
 


6
Hi Peter,
We had a similar problem years ago.

Michael Newton had rebuilt the gear box, but it was jumping out of 1st and reverse.

We sent it back to him and he cured it but for a time it was stiff getting into 1st and 2nd, particularly 1st..
With the second strip down, it has lost it's slickness between gears but I'm very happy with it.

I'm not familiar with the internals of the Syncro gear box,
but whatever holds it engaged in gears appears to have been stiffened up.

Sorry, but that is how we solved the problem.

Peter






--Original Message Text---
From: peter@coeconsult.com.au [Syncro_T3_Australia]
Date: 24 Jan 2015 01:48:33 -0800





Wrote my post about the gearbox rebuild too early. Here is the summary:

All went well after the box went back in. Drove the van around Port Mac for a month with no issues. Then went on a road trip via the South Coast to Melbourne. First 400 KM to Sydney, no worries. Then around the Coast, Berri, Kiama and down to Culburra Beach. Then down to Eden. All good. A happy VW owner at the wheel. At this stage the new box had done about 1000 kms. Then on the way from Eden to Lakes Entrance it suddenly pops out of 4th gear. Does it again and again. I go into third and then back into 4th often. Got into Melbourne after it happened again a few times and I kept holding it in 4th. My left arm has strong muscles as a result!!

A week idle for the van while I flew to Hobart, then drove back from Melb to Queanbeyan. Took note that it was more prevalent when first being used and then less likely to come out when everything warmed up. On 19 Jan drove from Queanbeyan to Port Mac. Left it alone and it jumped out once early on. After holding it for a few KMs I let go and we drove all the way home to Port Mac and it did not jump out once!!!

Have just spent 3 hours with our local expert VW mechanic friend trying to adjust the linkage in case that was the issue. Adjusting at the spline in the middle of the drive train. What fun. It kept jumping out and then he must have gone to far because after about 30 adjustments to and fro we now have reverse, 3rd and 4th but no 1st or second. I am so fearful that the the issue is the box and we have to take it out again.

I have trawled the various VW web sites for days and many others have had the same problem, particularly after a rebuild but I am yet to find a solution.

We will try again tomorrow afternoon to get all gears working. If not, despair!!!

Our tactics are to get everything right and eliminate other possibilities and if it still happens then its the gearbox. After all, why did it suddenly start to happen?? One issue is that the rear bellows appears to be overly compressed in 4th. But 2nd is rock solid and nothing we can do makes it pop out of second

Sorry to post such a negative story but it has been a long day under the van!!!!!

Peter from Port







7
Sometimes people increase the detent spring pressure to stop a gearbox falling out of gear. This will only mask the symptom if at all and it will reoccur.
From: "'Peter Schweinsberg' peter@peterandval.com [Syncro_T3_Australia]" <Syncro_T3_Australia@yahoogroups.com>
To: "Syncro_T3_Australia@yahoogroups.com" <Syncro_T3_Australia@yahoogroups.com>
Sent: Saturday, 24 January 2015, 23:07
Subject: Re: [Syncro_T3_Australia] Gearbox Delights

 
Hi Peter,
We had a similar problem years ago.

Michael Newton had rebuilt the gear box, but it was jumping out of 1st and reverse.

We sent it back to him and he cured it but for a time it was stiff getting into 1st and 2nd, particularly 1st..
With the second strip down, it has lost it's slickness between gears but I'm very happy with it.

I'm not familiar with the internals of the Syncro gear box,
but whatever holds it engaged in gears appears to have been stiffened up.

Sorry, but that is how we solved the problem.

Peter






--Original Message Text---
From: peter@coeconsult.com.au [Syncro_T3_Australia]
Date: 24 Jan 2015 01:48:33 -0800





Wrote my post about the gearbox rebuild too early. Here is the summary:

All went well after the box went back in. Drove the van around Port Mac for a month with no issues. Then went on a road trip via the South Coast to Melbourne. First 400 KM to Sydney, no worries. Then around the Coast, Berri, Kiama and down to Culburra Beach. Then down to Eden. All good. A happy VW owner at the wheel. At this stage the new box had done about 1000 kms. Then on the way from Eden to Lakes Entrance it suddenly pops out of 4th gear. Does it again and again. I go into third and then back into 4th often. Got into Melbourne after it happened again a few times and I kept holding it in 4th. My left arm has strong muscles as a result!!

A week idle for the van while I flew to Hobart, then drove back from Melb to Queanbeyan. Took note that it was more prevalent when first being used and then less likely to come out when everything warmed up. On 19 Jan drove from Queanbeyan to Port Mac. Left it alone and it jumped out once early on. After holding it for a few KMs I let go and we drove all the way home to Port Mac and it did not jump out once!!!

Have just spent 3 hours with our local expert VW mechanic friend trying to adjust the linkage in case that was the issue. Adjusting at the spline in the middle of the drive train. What fun. It kept jumping out and then he must have gone to far because after about 30 adjustments to and fro we now have reverse, 3rd and 4th but no 1st or second. I am so fearful that the the issue is the box and we have to take it out again.

I have trawled the various VW web sites for days and many others have had the same problem, particularly after a rebuild but I am yet to find a solution.

We will try again tomorrow afternoon to get all gears working. If not, despair!!!

Our tactics are to get everything right and eliminate other possibilities and if it still happens then its the gearbox. After all, why did it suddenly start to happen?? One issue is that the rear bellows appears to be overly compressed in 4th. But 2nd is rock solid and nothing we can do makes it pop out of second

Sorry to post such a negative story but it has been a long day under the van!!!!!

Peter from Port









8
Thanks guys. Will see how we go this afternoon on the linkage. Then we will test the engagement by engaging 4th manually with the linkage disconnected to see if the issue is the box.
Cheers, Peter 

Sent from my iPad

On 25 Jan 2015, at 12:35 am, Greg Esposito gregespo73@yahoo.com [Syncro_T3_Australia] <Syncro_T3_Australia@yahoogroups.com> wrote:

 

Sometimes people increase the detent spring pressure to stop a gearbox falling out of gear. This will only mask the symptom if at all and it will reoccur.
From: "'Peter Schweinsberg' peter@peterandval.com [Syncro_T3_Australia]" <Syncro_T3_Australia@yahoogroups.com>
To: "Syncro_T3_Australia@yahoogroups.com" <Syncro_T3_Australia@yahoogroups.com>
Sent: Saturday, 24 January 2015, 23:07
Subject: Re: [Syncro_T3_Australia] Gearbox Delights

 
Hi Peter,
We had a similar problem years ago.

Michael Newton had rebuilt the gear box, but it was jumping out of 1st and reverse.

We sent it back to him and he cured it but for a time it was stiff getting into 1st and 2nd, particularly 1st..
With the second strip down, it has lost it's slickness between gears but I'm very happy with it.

I'm not familiar with the internals of the Syncro gear box,
but whatever holds it engaged in gears appears to have been stiffened up.

Sorry, but that is how we solved the problem.

Peter






--Original Message Text---
From: peter@coeconsult.com.au [Syncro_T3_Australia]
Date: 24 Jan 2015 01:48:33 -0800





Wrote my post about the gearbox rebuild too early. Here is the summary:

All went well after the box went back in. Drove the van around Port Mac for a month with no issues. Then went on a road trip via the South Coast to Melbourne. First 400 KM to Sydney, no worries. Then around the Coast, Berri, Kiama and down to Culburra Beach. Then down to Eden. All good. A happy VW owner at the wheel. At this stage the new box had done about 1000 kms. Then on the way from Eden to Lakes Entrance it suddenly pops out of 4th gear. Does it again and again. I go into third and then back into 4th often. Got into Melbourne after it happened again a few times and I kept holding it in 4th. My left arm has strong muscles as a result!!

A week idle for the van while I flew to Hobart, then drove back from Melb to Queanbeyan. Took note that it was more prevalent when first being used and then less likely to come out when everything warmed up. On 19 Jan drove from Queanbeyan to Port Mac. Left it alone and it jumped out once early on. After holding it for a few KMs I let go and we drove all the way home to Port Mac and it did not jump out once!!!

Have just spent 3 hours with our local expert VW mechanic friend trying to adjust the linkage in case that was the issue. Adjusting at the spline in the middle of the drive train. What fun. It kept jumping out and then he must have gone to far because after about 30 adjustments to and fro we now have reverse, 3rd and 4th but no 1st or second. I am so fearful that the the issue is the box and we have to take it out again.

I have trawled the various VW web sites for days and many others have had the same problem, particularly after a rebuild but I am yet to find a solution.

We will try again tomorrow afternoon to get all gears working. If not, despair!!!

Our tactics are to get everything right and eliminate other possibilities and if it still happens then its the gearbox. After all, why did it suddenly start to happen?? One issue is that the rear bellows appears to be overly compressed in 4th. But 2nd is rock solid and nothing we can do makes it pop out of second

Sorry to post such a negative story but it has been a long day under the van!!!!!

Peter from Port









9
Mine used to jump out of fourth when hot after a gearbox rebuild, usually on the highway, until I reduced the oil level in the transmission (From memory, the correct level is about 19mm below the filler plug).

Problem solved.

Has been running perfectly since then, after three or four years and about 60k.

I love a repair that costs nothing!

Roger (beetle) Bayley.
10
Peter - in regard to my previous post about too much oil in the transmission causing it to jump out of fourth gear when hot, I looked up Bentley which says "fill to the bottom of the filler hole" - so take this advice at your own risk.

I remember when I had the same problem myself, I did some research and discovered a long thread on the subject on either this or Derek Drew's website in which many respondents had recommended a lower oil level to alleviate jumping out of top gear on the freeway when hot.

Mine would not jump out of gear after I had been driving for fifteen or twenty minutes. The first time it happened, I cursed the well-known VW mechanic who had rebuilt the trannie, but removing some oil cured the problem completely.

That was years ago. I have covered many thousands of miles since, both highway and off-road, and the tranny is working perfectly.

Unfortunately I am not at home at the moment so I cannot look up my files, but I will do a search and get back to you.

A couple of points -

Although I am no expert on the syncro transaxle, I have rebuilt several T2 trannies, which share many components in the gear cluster. Jumping out of top gear in those was caused by worn synchromesh rings, or less commonly by worn gear clusters. These would have been obvious during the rebuild, so I think you can safely discount that scenario.

Other possible culprits are -

Gear linkage faulty or out of adjustment; this would show up all the time, not just on a long drive.

Loose or broken engine or transmission mounts. This would cause the vehicle to jump out of any gear during acceleration or deceleration, or travelling over bumps. It would be more obvious in the lower gears.

Misaligned engine and transmission unit (Unlikely).

Incorrect oil type or oil level. (Or no oil at all - but you would have heard the whines and grinds by now).

It seems likely to me that it is an oil-level problem. Go to the hardware store and buy a cheap sludge pump or oil syringe, a 17mm allen key (or a short 17mm bolt with a couple of locknuts attached will do), and find a bowl or basin to drain a bit of oil into, and a clean bottle to save the oil.

Grab a rag, put on some rubber gloves, crawl underneath when the vehicle is cold and crack open the gearbox filler plug. It is likely that it was over-filled, and the excess oil will slowly run out.

Rub some oil between your fingers. It should be much thicker than engine oil (unless synthetic). It should not smell like someone burnt the sausages.

Remove some oil with the pump. Start off by taking out half an inch. Work slowly, to give the thick oil time to find it's own level.

Save the oil.

Test drive.

If that doesn't work, take out another 1/4 inch.

If it makes no difference, you can always put it back in!

If you are running a synthetic oil, it is worth trying a change back to mineral oil. I have had problems with two old vehicles when changing to synthetic, which were solved by reverting to the oil they were designed for. Only thing is, not all the oil drains out of the Syncro transaxle, so you need a replacement oil that is compatible.

Will do the research and get back to you.

If you get stuck down the south coast give me a ring on 0429 161 547. I'll be home in Goulburn tomorrow night. I have a spare tranny in the shed.

Roger.
11

Very interesting reading Roger!


Was curious on the Synthetic oil comment. I have not changed the Syncro yet as it is best to change oil types after a strip down (no old oil left inside)  I would have considered converting to Synthetic an upgrade?


I have run synthetic in my old VW's (T2 kombi, type 3 etc), never had issues, and found they change smoother, particularly when cold. I realise the Syncro box is different to those of course.


Richard

12
There was a workshop bulletin that came from Volkswagen recomending the oil level to be 10mm below the filler hole. The Bentley was probably written before that.
13
A thought on removing some oil from the gear box.

If we fill to the bottom of the overflow, the oil is at the correct level when cold,
but as we drive on and the gear box heats up, and the oil expands,
and the box will be overfull, a matter made worse on a hot day.

This is something that I have to be careful with the Porsche motor in the Bergmeister.
It is a dry sump engine and has to be warmed to operating temperature before checking the oil level,
otherwise it is easily overfilled which can produce some undesirable problems.

Peter



--Original Message Text---
From: Roger Bayley gullyraker53@gmail.com [Syncro_T3_Australia]
Date: Mon, 26 Jan 2015 21:47:03 +1100



Peter - in regard to my previous post about too much oil in the transmission causing it to jump out of fourth gear when hot, I looked up Bentley which says "fill to the bottom of the filler hole" - so take this advice at your own risk.


I remember when I had the same problem myself, I did some research and discovered a long thread on the subject on either this or Derek Drew's website in which many respondents had recommended a lower oil level to alleviate jumping out of top gear on the freeway when hot.


Mine would not jump out of gear after I had been driving for fifteen or twenty minutes. The first time it happened, I cursed the well-known VW mechanic who had rebuilt the trannie, but removing some oil cured the problem completely.


That was years ago. I have covered many thousands of miles since, both highway and off-road, and the tranny is working perfectly.Â


Unfortunately I am not at home at the moment so I cannot look up my files, but I will do a search and get back to you.


A couple of points -


Although I am no expert on the syncro transaxle, I have rebuilt several T2 trannies, which share many components in the gear cluster. Jumping out of top gear in those was caused by worn synchromesh rings, or less commonly by worn gear clusters. These would have been obvious during the rebuild, so I think you can safely discount that scenario.


Other possible culprits are -


Gear linkage faulty or out of adjustment; this would show up all the time, not just on a long drive.


Loose or broken engine or transmission mounts. This would cause the vehicle to jump out of any gear during acceleration or deceleration, or travelling over bumps. It would be more obvious in the lower gears.


Misaligned engine and transmission unit (Unlikely).


Incorrect oil type or oil level. (Or no oil at all - but you would have heard the whines and grinds by now).


It seems likely to me that it is an oil-level problem. Go to the hardware store and buy a cheap sludge pump or oil syringe, a 17mm allen key (or a short 17mm bolt with a couple of locknuts attached will do), and find a bowl or basin to drain a bit of oil into, and a clean bottle to save the oil.


Grab a rag, put on some rubber gloves, crawl underneath when the vehicle is cold and crack open the gearbox filler plug. It is likely that it was over-filled, and the excess oil will slowly run out.


Rub some oil between your fingers. It should be much thicker than engine oil (unless synthetic). It should not smell like someone burnt the sausages.


Remove some oil with the pump. Start off by taking out half an inch. Work slowly, to give the thick oil time to find it's own level.


Save the oil.


Test drive.


If that doesn't work, take out another 1/4 inch.


If it makes no difference, you can always put it back in!


If you are running a synthetic oil, it is worth trying a change back to mineral oil. I have had problems with two old vehicles when changing to synthetic, which were solved by reverting to the oil they were designed for. Only thing is, not all the oil drains out of the Syncro transaxle, so you need a replacement oil that is compatible.


Will do the research and get back to you.


If you get stuck down the south coast give me a ring on 0429 161 547. I'll be home in Goulburn tomorrow night. I have a spare tranny in the shed.Â


Roger.






14

Thanks Roger. Mine was doing the opposite. Jumping out when cold and staying in when warmed up. It’s all a bit weird and the weather here has been so foul that we have not had a chance to get the linkage correct before doing more tests. So the van is off the road for the moment. My web research has brought up so many scenarios about 4th gear that confirm the strange and wonderful ways of the syncro. I will check the oil level though as part of the work to eliminate all possibilities before pulling the box out and going back to Ron. I am using that expensive syntrax oil recommended by Ron. At $30 a litre.

Regards, Peter

15

Just thinking out allowed on the over filling, and expansion with heat. Given the age they are at, is the Syncro prone to blocking the breather lines? This can also cause issues.

Richard

16

Thanks for all the good information from our experts. Much appreciated. Weather has delayed having another go at the box. But does anyone have any time for getting the linkage adjusted correctly. My German mechanic friend is having all sorts of troubles. We are adjusting at the spline in the centre of the vehicle. When we have reverse we can’t get 3rd or 4th. Then we get 1st in the reverse position and can’t get 1st or 2nd in the normal position. Is it just small adjustments and trial and error?

Peter from Port (drying out now)

 

Ph:   02 6582 4650

Mob:   0400 998 917

Email:  peter@coeconsult.com.au

Web:   http://www.coeconsult.com.au/

 

20 Calwalla Crescent

Port Macquarie NSW 2444

 

17
It is just that, trial and error. The thing you should have done is mark it before you start. Is all well in the black box up front?

Sent from Greg's iPhone

On 29 Jan 2015, at 8:43 am, 'Peter Coe' peter@coeconsult.com.au [Syncro_T3_Australia] <Syncro_T3_Australia@yahoogroups.com> wrote:

 

Thanks for all the good information from our experts. Much appreciated. Weather has delayed having another go at the box. But does anyone have any time for getting the linkage adjusted correctly. My German mechanic friend is having all sorts of troubles. We are adjusting at the spline in the centre of the vehicle. When we have reverse we can’t get 3rd or 4th. Then we get 1st in the reverse position and can’t get 1st or 2nd in the normal position. Is it just small adjustments and trial and error?

Peter from Port (drying out now)

 

Ph:   02 6582 4650

Mob:   0400 998 917

Email:  peter@coeconsult.com.au

Web:   http://www.coeconsult.com.au/

 

20 Calwalla Crescent

Port Macquarie NSW 2444

 

18
My experiences with synthetic oil in old vehicles have not been good. Transmission mainshaft bearing failed in T2 a week after filling. A grub screw in the gear-set in the transfer case of my Range Rover suddenly fell out after thirty years, soon after changing to synthetic. Co-incidence?

Hundreds of dollars worth of Redwin synthetic dribbled out of my T3, past the oil seals.

Modern oils are not compatible with the oil seals used in classic cars. The seals will harden and leak. That's why they sell different engine oils for classic cars.

You cannot use a modern oil in your engine or gearbox without changing the seals and "O" rings.

Many mechanics are not aware of the problem, just as they don't know how to tune a carburettor or set points.

After forty-five years of restoring and maintaining old vehicles, I have learnt to leave things as they were intended by the designer. When components have become accustomed to a certain pattern of usage, they get set in their ways, and don't like change. Synthetic oil changes the parameters.

It has been a long and expensive learning curve. Pity I'm forgetting it all now ...

Roger Bayley
19

On the matter of mineral versus synthetic oils, I have conversed with lubrication engineers and with people who have extensive gearbox rebuilding experience and they all come up with the same factor – film integrity.

Film integrity is the ability of a lubricant to maintain a cohesive film on a surface when it is under load.  What I am told is that synthetic oils cannot achieve the same film integrity as mineral oils in any given situation. 

This parallels the experience that Roger has reported and this is the reason that I will continue to use mineral oils to the exclusion of synthetics.

Les

From: Syncro_T3_Australia@yahoogroups.com [mailto:Syncro_T3_Australia@yahoogroups.com]
Sent: 31 January 2015 12:49
To: Syncro_T3_Australia@yahoogroups.com
Subject: [Syncro_T3_Australia] Re: Gearbox Delights

 

My experiences with synthetic oil in old vehicles have not been good. Transmission mainshaft bearing failed in T2 a week after filling. A grub screw in the gear-set  in the transfer case of my Range Rover suddenly fell out after thirty years, soon after changing to synthetic. Co-incidence?

Hundreds of dollars worth of Redwin synthetic dribbled out of my T3, past the oil seals.

Modern oils are not compatible with the oil seals used in classic cars. The seals will harden and leak. That's why they sell different engine oils for classic cars.

You cannot use a modern oil in your engine or gearbox without changing the seals and "O" rings.

Many mechanics are not aware of the problem, just as they don't know how to tune a carburettor or set points.

After forty-five years of restoring and maintaining old vehicles, I have learnt to leave things as they were intended by the designer. When components have become accustomed to a certain pattern of usage, they get set in their ways, and don't like change. Synthetic oil changes the parameters.

It has been a long and expensive learning curve. Pity I'm forgetting it all now ...

Roger Bayley 

20
Hey, was anyone in Anglesea, vic today (Saturday) in a very nice silver pop top? Nice 5 spoke alloys and non-standard 4wd stickers. Looked like a possible trakka?
Cheers. Nick

On 31 Jan 2015, at 1:15 pm, "'Les Harris' leslieharris@optusnet.com.au [Syncro_T3_Australia]" <Syncro_T3_Australia@yahoogroups.com> wrote:

 

On the matter of mineral versus synthetic oils, I have conversed with lubrication engineers and with people who have extensive gearbox rebuilding experience and they all come up with the same factor – film integrity.

Film integrity is the ability of a lubricant to maintain a cohesive film on a surface when it is under load.  What I am told is that synthetic oils cannot achieve the same film integrity as mineral oils in any given situation. 

This parallels the experience that Roger has reported and this is the reason that I will continue to use mineral oils to the exclusion of synthetics.

Les

From: Syncro_T3_Australia@yahoogroups.com [mailto:Syncro_T3_Australia@yahoogroups.com]
Sent: 31 January 2015 12:49
To: Syncro_T3_Australia@yahoogroups.com
Subject: [Syncro_T3_Australia] Re: Gearbox Delights

 

My experiences with synthetic oil in old vehicles have not been good. Transmission mainshaft bearing failed in T2 a week after filling. A grub screw in the gear-set  in the transfer case of my Range Rover suddenly fell out after thirty years, soon after changing to synthetic. Co-incidence?

Hundreds of dollars worth of Redwin synthetic dribbled out of my T3, past the oil seals.

Modern oils are not compatible with the oil seals used in classic cars. The seals will harden and leak. That's why they sell different engine oils for classic cars.

You cannot use a modern oil in your engine or gearbox without changing the seals and "O" rings.

Many mechanics are not aware of the problem, just as they don't know how to tune a carburettor or set points.

After forty-five years of restoring and maintaining old vehicles, I have learnt to leave things as they were intended by the designer. When components have become accustomed to a certain pattern of usage, they get set in their ways, and don't like change. Synthetic oil changes the parameters.

It has been a long and expensive learning curve. Pity I'm forgetting it all now ...

Roger Bayley