How much free play can you get and still have the clutch disengage fully??
Can you get at least 0.060" (or more) of free play and get the clutch to release fully??
Driving the 80-100km with at least 0.060" of free play won't hurt the throw-out bearing for that short distance. You don't need to use high engine rpm's for the drive.
I can't tell for sure from your pic, but do you have a block spacer plate installed between the engine block and the bellhousing?? If that plate is NOT installed, the throw-out bearing moves ~0.070" CLOSER to the fingers of the pressure plate, which COULD cause free play problems.
John
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