Crank wear from thrust washers

Chiba · Post by **Chiba** » Wed Jul 03, 2002 3:27 am

My Type1 f-Type crank has been cut into by the thrust washers. I measured it and its about .006" deep, it's got a while to go before it cuts into the dowel holes but is it through the hardfacing ? am i being a bit picky or should i find another crank ?

Every other part of the crank is perfect.

Post by **sparkmaster1** » Wed Jul 03, 2002 5:22 am

You should probably replace a crank that has been "shim cut". You wouldn't want the shims to get caught in the groove and mess with trying to set the end play when you re-assemble your motor. They really need to be able to float on the end of the crank. Tim

Post by **Marc** » Wed Jul 03, 2002 7:17 am

<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by sparkmaster1:
You should probably replace a crank that has been "shim cut". <HR></BLOCKQUOTE>

Yep, it can only get worse. Shim(s) will slip into the cut in operation, fouling your endplay, bending (and possibly breaking) the shim, and when off-center they'll "hula-hoop" around and cut it even more.
You normally see this because someone used the larger ID non-O-ring ("6v") endplay shims on an O-ring crank - never use shims that'll slide over the bearing journal on an O-ring crank.
You could have it welded and reground but if it's just a stocker that's not worth it.
You can still use it in a throwaway motor if the cut is narrower than any of the endplay shims you use (most likely this would mean setting the endplay with a metal gasket so that thick shims would be in order) but don't chance it in a good engine.

Chiba · Post by **Chiba** » Wed Jul 03, 2002 7:56 pm

Thank's for your help everyone . It looks like i will have to save this crank for the spare motor.
Cheers