diff lock

1
hello all, I have a rear diff lock in my trakka which is great but it usually takes 10 mins plus to actuate from a cold start with engine idleing.
(I have found myself at different campsites and need to use it to get out, perhaps like me it doesnt want to leave).

When the engine has been running to temp for a good while it still takes 750m of driving to actuate after I pull the knob out on the dashboard.

Perhaps I am approaching this all wrong or something is not workng properly. The decoupler I fitted 3 months ago activates immediately every time I activate it.
Your thoughts on this are appreciated Greg
2
Greg, there are two things to consider here. Firstly the "teeth" of the locker are very course so steering to one side after engaging will get the rear axles to spin at a differant speed and allow the locker to drop in. Secondly the actuating shafts of the locker tend to build up with crud. Remove the actuator and spray some wd-40 (or similar)down the shaft whilst pulling it in and out. When you refit use 19mm heater hose cut to length to make water proof shield. I fill it with grease also. This should already be there but is probably missing. You would have seen this all before on your decoupler, just copy what florian has done. Greg E 

From: Greg <greg_navarro95@yahoo.com>
To: Syncro_T3_Australia@yahoogroups.com
Sent: Saturday, 1 October 2011 8:23 AM
Subject: [Syncro_T3_Australia] diff lock

 
hello all, I have a rear diff lock in my trakka which is great but it usually takes 10 mins plus to actuate from a cold start with engine idleing.
(I have found myself at different campsites and need to use it to get out, perhaps like me it doesnt want to leave).

When the engine has been running to temp for a good while it still takes 750m of driving to actuate after I pull the knob out on the dashboard.

Perhaps I am approaching this all wrong or something is not workng properly. The decoupler I fitted 3 months ago activates immediately every time I activate it.
Your thoughts on this are appreciated Greg



3
Greg,
I'd expect you already know this, but I'll say it anyway. Normally to effect engagement of the difflock requires the steering to be headed to the left or right. But not for disengagement, just ease off the throttle.
Ken 

To: Syncro_T3_Australia@yahoogroups.com
From: greg_navarro95@yahoo.com
Date: Fri, 30 Sep 2011 22:23:14 +0000
Subject: [Syncro_T3_Australia] diff lock

 
hello all, I have a rear diff lock in my trakka which is great but it usually takes 10 mins plus to actuate from a cold start with engine idleing.
(I have found myself at different campsites and need to use it to get out, perhaps like me it doesnt want to leave).

When the engine has been running to temp for a good while it still takes 750m of driving to actuate after I pull the knob out on the dashboard.

Perhaps I am approaching this all wrong or something is not workng properly. The decoupler I fitted 3 months ago activates immediately every time I activate it.
Your thoughts on this are appreciated Greg


4

Greg,

This comes after freeing up the shaft that runs through the diff housing, of course.   Follow Greg E’s instructions to get it operating freely.

The amount of steering left or right that Ken mentions is only a very slight amount.   This slight amount of steer produces a slight speed difference between the two diff output shafts and allows the diff lock dog to engage.

Les

From: Syncro_T3_Australia@yahoogroups.com [mailto: Syncro_T3_Australia@yahoogroups.com ] On Behalf Of Ken Garratt
Sent: 01 October 2011 12:01
To: _T3_Australia forum Syncro
Subject: RE: [Syncro_T3_Australia] diff lock

 

 

Greg,

I'd expect you already know this, but I'll say it anyway. Normally to effect engagement of the difflock requires the steering to be headed to the left or right. But not for disengagement, just ease off the throttle.

Ken 

5
Thanks for all your information gentleman, I did not know the diff lock was actauated by steering left or right. Thanks again Greg

--- In Syncro_T3_Australia@yahoogroups.com, "Les Harris" <leslieharris@...> wrote:
>
> Greg,
>
> This comes after freeing up the shaft that runs through the diff housing, of
> course. Follow Greg E's instructions to get it operating freely.
>
> The amount of steering left or right that Ken mentions is only a very slight
> amount. This slight amount of steer produces a slight speed difference
> between the two diff output shafts and allows the diff lock dog to engage.
>
> Les
>
> _____
>
> From: Syncro_T3_Australia@yahoogroups.com
> [mailto:Syncro_T3_Australia@yahoogroups.com] On Behalf Of Ken Garratt
> Sent: 01 October 2011 12:01
> To: _T3_Australia forum Syncro
> Subject: RE: [Syncro_T3_Australia] diff lock
>
>
>
>
>
> Greg,
>
> I'd expect you already know this, but I'll say it anyway. Normally to effect
> engagement of the difflock requires the steering to be headed to the left or
> right. But not for disengagement, just ease off the throttle.
>
> Ken
>
6

Greg,

Just to keep the terminology straight, the actuation part is done by the vacuum cylinder.   This applies pressure to the rod that runs into the diff housing. 

The engagement part of the operation can’t happen until the dogs inside the diff housing line up, whereupon they engage and the diff is then locked.

There is a spring on the dog mechanism that tries to push the dogs out of engagement.   The reason for this is that vacuum failure does not result in a lock that won’t disengage.   In normal circumstances, the power of the vac cylinder easily overcomes the force of the spring.

Les

From: Syncro_T3_Australia@yahoogroups.com [mailto: Syncro_T3_Australia@yahoogroups.com ] On Behalf Of Greg
Sent: 01 October 2011 15:07
To: Syncro_T3_Australia@yahoogroups.com
Subject: [Syncro_T3_Australia] Re: diff lock


Thanks for all your information gentleman, I did not know the diff lock was actauated by steering left or right. Thanks again Greg


7
or if one rear tire spins  on a slippery surface, compared to the other rear tire.
 
 
----- Original Message -----
From: Greg
Sent: Friday, September 30, 2011 10:06 PM
Subject: [Syncro_T3_Australia] Re: diff lock

 


Thanks for all your information gentleman, I did not know the diff lock was actauated by steering left or right. Thanks again Greg

--- In Syncro_T3_Australia@yahoogroups.com, "Les Harris" <leslieharris@...> wrote:
>
> Greg,
>
> This comes after freeing up the shaft that runs through the diff housing, of
> course. Follow Greg E's instructions to get it operating freely.
>
> The amount of steering left or right that Ken mentions is only a very slight
> amount. This slight amount of steer produces a slight speed difference
> between the two diff output shafts and allows the diff lock dog to engage.
>
> Les
>
> _____
>
> From: Syncro_T3_Australia@yahoogroups.com
> [mailto:Syncro_T3_Australia@yahoogroups.com] On Behalf Of Ken Garratt
> Sent: 01 October 2011 12:01
> To: _T3_Australia forum Syncro
> Subject: RE: [Syncro_T3_Australia] diff lock
>
>
>
>
>
> Greg,
>
> I'd expect you already know this, but I'll say it anyway. Normally to effect
> engagement of the difflock requires the steering to be headed to the left or
> right. But not for disengagement, just ease off the throttle.
>
> Ken
>