Miata Turbo Forum - Boost cars, acquire cats. - Vibration, failed pilot bearing, discolored flywheel

Quote:

Originally Posted by poormxdad (Post 1525593)

I took her around the block yesterday. She seems back to her normal self--no vibration or buzz. Are the parts I took out scrap since I don't know which one(s) caused the problem?

Thanks,

The flywheel is probably fine, aside from perhaps needing a resurfacing and balancing.

I'd almost bet the torsion springs in the clutch disc have gotten some play in them and can shake/vibrate. Have seen a couple clutch discs do this when overheated; the springs' free-lengths shrink and let them rattle when cool.