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ack4007

variable clutch pressure

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My 90K mile DD 2001 S is presenting a mystery symptom that the search function hasn't been able to help me solve. My reasonably new clutch, pressure plate, and throw-out bearing feel great at civil RPMs - very consistent pressure and engagement. However the clutch pressure gets noticeably lighter just before engagement when shifting above 5K RPMs. When I push in, it's firm. Then about halfway through its return journey, it gets soft. The gear shift remains smooth, I can control the engagement with the flywheel, and there's no slipping. Everything seems to be working, but something is changing and I don't know what.

The transmission does have the modified 2nd gear detent, but I can't imagine how that could play a role.

My guess is that the mounts - engine, transmission, or maybe both - are the culprits. But I am not getting the other telltale symptoms of rotten rubber.

At this point, it's not a problem but I'd like to hear some theories before something goes pop.

Thanks! AK in VA

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