kjh Posted March 13, 2014 Report Share Posted March 13, 2014 I had my flywheel nut come off, sheered the key and damaged the tapered end of the crank. the threads are ok but can i run it like this? is there anything I can do other than tear it apart and replace the crank?? Quote Link to comment Share on other sites More sharing options...
Young Guns Racing Posted March 13, 2014 Report Share Posted March 13, 2014 How damaged is the taper? Pics? If the key slot is not damaged and the flywheel still fits the taper tight u might be able to get away with it. Quote Link to comment Share on other sites More sharing options...
kjh Posted March 13, 2014 Author Report Share Posted March 13, 2014 the key slot is fine, its probably questionable it the flywheel will fit tight, doesn't seem like I have a lot to loose I may is well try it is what i'm thinking. pretty cheap to buy a nut and key. Quote Link to comment Share on other sites More sharing options...
#1JUANstunna Posted March 13, 2014 Report Share Posted March 13, 2014 Tack weld it that's what Finch had me do to mine when it kept falling off after he ported my cylinders with a chisel and hammer. Made too much POWA! Lap it to the crank and try again. Get a bigger impact. Quote Link to comment Share on other sites More sharing options...
hoppedupandcutdown Posted March 13, 2014 Report Share Posted March 13, 2014 yes, lapping compound - use it. Quote Link to comment Share on other sites More sharing options...
kjh Posted March 13, 2014 Author Report Share Posted March 13, 2014 ok. i've never heard of lapping compound. auto parts store? what is it? Quote Link to comment Share on other sites More sharing options...
hoppedupandcutdown Posted March 13, 2014 Report Share Posted March 13, 2014 Any auto parts store. little tube of gritty paste, smear it on twist flywheel by hand back and forth round and round, remove, clean well. Bam Nice new mating surface. Quote Link to comment Share on other sites More sharing options...
kjh Posted March 13, 2014 Author Report Share Posted March 13, 2014 Cool, thanks for the help! Quote Link to comment Share on other sites More sharing options...
Finch Posted March 13, 2014 Report Share Posted March 13, 2014 valve lapping compound is whats it wil usually be labeled at autoparts stores or do as Juan said 1 Quote Link to comment Share on other sites More sharing options...
Deadbeat Posted March 13, 2014 Report Share Posted March 13, 2014 if there are any high spots on the the crank and flywheel tapers you prolly want to get rid of those first carefully with a smooth file before you start lapping 1 Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.