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Old 12-02-2002, 04:41 PM
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Red face 350 crank question

A friend of mine had a problem with his crank in his 350. He had the harmonic balancer bolt come loose just enough to let the balancer wobble a bit. He had the little keeper to keep it lined up and what it did was make the slot where the keeper is a bit wider. He had to tap and rethread the bolt hole to a 1/2 inch instead of 7/16. Then he put in a 1/2 bolt and tightened her down and it holds ok, but my question is, can you fill in the spot, along where the keeper pin is to repair the crank? Thanks for any info!!

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Old 12-02-2002, 04:58 PM
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if the harmonic ballancer came loose on a 350 chevy either it is cracked or the crank snout is junk or both, this is supposed to be a press fit!! to correctly repair the keyway the crank has to be welded, usually cheaper to get another crank.
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Old 12-02-2002, 06:59 PM
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Yeah, your right! We looked at the balancer and it was cracked. He said he didn't want to have to totally take the engine apart just to fix the "snout", as you called it. It didn't hurt the crank that much, so I think a quick weld job would do ok. I wanted to make sure what to tell him. Thanks!
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Old 12-03-2002, 01:08 PM
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make sure that when you weld it that you ground to the flywheel. you don't want to weld the bearings to the crank.
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Old 12-03-2002, 03:25 PM
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Will anything else work besides welding it?
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