redblockpowered
bad username length
- Joined
- May 5, 2015
- Location
- Swampscott, MA
I just finished putting an M90 in my 940. I used a dog dish flywheel instead of the stock dual mass unit, with 940 diesel clutch setup and turbo pressure plate. I shimmed the pivot ball 3.25 mm (measured with a digital caliper). Around 200 miles afterward I suffered a loss of clutch pedal pressure after holding the pedal down for 15-30 seconds. Looking underneath revealed that the slave boot had blown off and pissed fluid all over the ground. Obviously this means the slave cylinder is allowing fluid through. This morning I took the slave off (which I had given a new seal installed in the correct direction before mounting) and found... nothing of note. The seal looked fine, the bore was clean and without scoring. Did I not shim the ball enough, allowing for the slave to overtravel, or do I simply have a failed slave cylinder that looks and feels normal?