Quote:
Originally Posted by lupin..the..3rd
Quite frankly, this is not a DIY task. If it were me, I'd pull the crank and take it to a machine shop. It's not that much work to pull it (and you can put new crank bearings in when you reinstall it).
A machine shop can fix the original bunged up holes using time-serts or helicoils. It'll come back like new without any new holes being drilled. Drilling new holes into a crankshaft introduces stress risers that could cause the entire thing to fracture apart later on down the road.
You could also have it mic'd and magnafluxed at the same time, to make sure it's even worth repairing.
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Some kind of misunderstanding in this post. He's not drilling bolt holes. He's drilling the holes for the pins that lock the pulley to the crank nose.
Pulling the crank is a hell of a job since it requires pulling the engine. Drilling in place has been successful before and it's definitely worth a shot in this case before pulling the engine and crank.