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Flywheel bolt problems (archive)

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Posted by James Hartline on September 22, 2001 at 12:20:30:

Well, after I finished installing my new clutch last weekend, things couldn't be better. Now my problem is that around Wednesday or Thursday, something started rattling around inside the tranny that got me kind of worried. It would make this sound like something was bouncing around inside - it was even louder with the clutch pedal out while out of gear. I decided to pull the tranny again lastnight, to find something I never expected. Of the 8 bolts, 1 sheared its head off completely, 3 were loose and hanging out of their holes, and the other 4 came off with good hard twisting of hand pressure! The thing that blows me away about this is that even though the stock bolts didn't come with threadlocker applied, I applied some medium strength (red bottle, blue liquid) to the bolts. The specified torque (which I got from Bill, a gentleman on the 5-series messageboard who is a mechanic) is 75 ft. lbs., and to be honest, they probably got a little more torque than that. My problem is that I don't know what I could have done so wrong to create such a major error. Someone please help me, I have evertything sitting on my garage floor waiting for an answer. Also, the sleeve that is installed on the flywheel is no longer tight on the flywheel, but still have a very snug fit on the crankshaft. Bill recommended that I should apply some kind of JB weld to it to make sure it doesn't work it way out the hole for alignment purposes. He also recommended that I apply some kind of permanent threadlocker to the flywheel bolts, which I am considering so I don't have to do this again next weekend. One thing about all of this, I can remove the whole tranny in under 3 hours!


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