Originally Posted by Harvester
While you are looking around the crankshaft, check the pilot bushing for wear. The inner bore should be smooth, like the bearing surface on the transmission clutch shaft.
Harvester

I watched a fella take a pilot bushing out of a crankshaft once.
He squirted a bunch of grease into the pilot bearing, filling the crevice behind the bushing. He found a 3/8" extension that just fit inside the bushing. Wrapping a rag around the extension and holding it close to the flywheel, he gave the end of the extension a good whack with a hammer. The hydraulic pressure popped the pilot bushing out slicker than snot.

Chris