Chapter Director Coordinator
Join Date: Jul 2002
tapping crank question.
as some may know.. i busted an ARP bolt in my crank.. finally got it extracted a while back, and managed to drill what appears to be all of the broken bolt and damaged threads out
attempted to tap the crank a little larger (14mm as opposed to 12 or 12.5 (whatever)) but maintained same 1.5mm pitch
i am only able to tap it say... half the distance from the fingertip to the first knuckle.. so maybe 6-8 threads / 1/2"
how much thread is necessary to "hold" the stock pulley on the crank. we all know it has to be pulled on, but there isn't enough thread available to use the traditional method, so i can tap it on w/ a hammer if necessary, but what about holding it on, or whatever the bolts purpose is?
i cannot tap any further because as i turn the tap, the crank starts to turn.. i don't want to have someone hold the flywheel, because to be honest, i've broken enough things on this install
I bust ARP bolts by hand...
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