[FRporscheman]

On my mom's 968, the clutch pedal engagement point has always been very low to the floor. I figured too many, or too few, shims were used on the release bearing / pressure plate during the last clutch job. I tried adjusting the clutch pedal where it connects to the clutch master cylinder but it wouldn't let me adjust it enough. Not even close to enough.



I took out the clutch today to see what's going on. Apparently clutch kits come with 2 shims. I found both shims installed, and they were put on the back of the pressure plate. I figure these shims could be left out, or even put on the front side of the pressure plate. I know these shims are used to offset the engagement point of the clutch (right?), so I wanted to know others' experiences with this. I really want to get this right!



TIA

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[flash]

the clutch engagement point is almost certainly a bleeding thing - it can be a REAL pain to bleed - the reservoir needs to be jiggled to keep fluid in the clutch portion as you bleed it with the power bleeder and then also with the finishing manual bleeding - the car should also be level, and not "nose in the air" to facilitate this



i do not remember there being any shims at all, and this is the first i have heard of it

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[FRporscheman]

[quote name='flash' post='40749' date='Sep 4 2007, 06:02 AM']the clutch engagement point is almost certainly a bleeding thing - it can be a REAL pain to bleed - the reservoir needs to be jiggled to keep fluid in the clutch portion as you bleed it with the power bleeder and then also with the finishing manual bleeding - the car should also be level, and not "nose in the air" to facilitate this



i do not remember there being any shims at all, and this is the first i have heard of it[/quote]

Hey Bob!



There are 2 shims, and usually both are used in order to eliminate play between the TOB and the PP. Everyone I have spoken with who has done a clutch job said they saw the 2 shims on the rear side of the PP, and they all had low pedal engagement. My own 968 has a perfect engagement point, right around halfway down. I wish I could see how the shims are configured on that car.



The fluid has already been bled, and every other behavior and characteristic of the clutch is fine, so I believe the system is free of air.



I wanted to take the flywheel and PP to a machine shop today to get resurfaced, but I can't get the flipping TOB off the PP. Tips, anyone?!?!

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[flash]

ok - now i remember the "shims" - they go between the TOB and the tangs of the PP



i'm still betting on bleeding - we just did hydraulics on ron's car, and it fought us every inch - turned out that a tiny leak in the blue line was allowing air back into the system

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[jaap]

[quote name='FRporscheman' post='40764' date='Sep 4 2007, 10:29 PM']I wish I could see how the shims are configured on that car.[/quote]



If the shims on that car are in the same location, I think you should be able to see them through the small inspection cover near the clutch slave, so you do not need to take anything apart.



Jaap

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