Originally Posted by
70sSanO
I'm familiar with crank extraction devices that thread in and then removing the bolt pulls the crank.
I've just never used them. I remove them, use a Park crank puller, and then thread the extractors back in as dust (thread) covers.
My question was whether reducing the shoulder on the bolt holding the crank, just to use the extractors, is a good idea. I could be wrong, but to get a nice look, I would reduce the extractor depth and use a crank puller to remove the crank when necessary; which probably isn't very often.
John
Doesn't sound like you understand self-extracting crankarm bolts and how they work. I don't even think you can use a standard crank arm puller (why would I even try? By design it's unnecessary). It's a completely different design.
But, you are wrong. Reducing the shoulder diameter to the DESIGN SPEC of the original bolts won't be a problem.