Quote:
Originally Posted by peppy
Lightly polished crank.
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A bit of warning.
Polishing a crank involves abrasive compound. It behooves one to insure that none of this compound or residue ends up in the oil passages of the crank. Machine shops often do not clean out these passages.....I have spent hours squirting gallons of fresh solvent thru a crank and it's frightening what comes out. I'm sure my rod & main bearings love me for it.
I tore apart a low mile engine that someone didn't take this step. 2 rod bearings were on the edge of spinning and one had a piece of crap "prairie dogging" out into a rod bearing causing a deep groove around the circumference of the bearing.