Geez...I hope I can explain this clearly enough.
When you depress and release the clutch pedal, you can see the fiber sides of the clutch plate (one fiber disk on the flywheel...one fiber disk on the pressure plate) compress and expand. Its as if they are not firmly bonded back to back, but are slightly "squishy" in the center. If I use a screwdriver to compress the fiber disks together, I can get a .040 feeler guage to slide right in. If I do not compress the "squishiness" out of the clutch plate, I can barely get a .020 guage between the clutch plate and the flywheel.
I expected the clutch plate to be a fiber disk, a metal disk, and another fiber disk, bonded solidly together. I did not expect the center of this fiber sandwich to expand and contract with pressure.
I assume this friction plate is made properly and I am just not knowledgable enough to know better...but if I need .040 absolute clearance between this plate and the flywheel, then I am way shy of that.
Mooso.
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