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Old 12-04-2004, 10:46 PM
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Re: Re: Engine rebuilding-help me decide

Quote:
Originally Posted by RandomTask
Two of the main cap bolts had walked out allowing for the crankshaft to walk back and forth. (and destroying all main bearings in the process). Only explanation we could possibly find is that those bolts weren't torqued down. I have NEVER heard of this happening on any other vehicle.
Interesting story!! Wow, 11k.......I could never spend that much on a motor unless it was going to make me a living.

BTW you may have checked my long post, above. My buddy's SBC did the same thing. Sometimes overtightening bolts can have the same result, they stretch beyond their yeild point and are weakened. If they don't snap, they can back off and fall out.

Frankly, for 11k they should have drilled the bolts and wired everything down or used fold-over washers. Even my 1949 Ferguson tractor had that feature.
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