Porsche 911 UK Enthusiasts Online Community Discussion Forum GB

Welcome to the @Porsche911UK website. Register a free account today to become a member! Sign up is quick and easy, then you can view, participate in topics and posts across the site that covers all things Porsche.

Already registered and looking to recovery your account, select 'login in' and then the 'forget your password' option.

Could anyone who specialises in diffs fix my issue?

maor

Silverstone
Joined
24 Jun 2013
Messages
137
I have found what the issue is with my ongoing knocking issue but I cant fix it as I am no good.

The issue is it knocks when going on and off throttle. A chap in the USA has had the same issue as me and has sorted it and said this which makes little to no sense to me:

Well after a bit of effort I have hopefully solved the differential problem I was having. Just to recap, my diff was making a progressively louder clacking noise when accelerating or decelerating. After checking for loose trans/engine mounts and other suspension parts I finally narrowed it down to the differential.

At this point decided to readjust the shims beneath the cups. The procedure I used was similar to that described for the GT2 (couldn't find any info for the 996tt tip). The first step was to determine the total width of S1 + S2. To do this I added 1mm to both and measured the remaining play to be 0.5mm. To this I added 0.35mm preload for a S1+S2 total of 2mm +0.5mm +0.4mm. In the end the optimal backlash was found by using a 1mm stack height for S1 and 1.85mm for S2 (as close as I could get to 1.9mm using the shims on hand).

Would someone who sees diffs day in day out be able to sort this out? From what I understand it appears to just need some sort of shim backlash fix type job?
 

New Threads

Forum statistics

Threads
124,846
Messages
1,449,133
Members
50,055
Latest member
mrmward27
Back
Top