Originally Posted by GTJIM
Shot peening - on the other hand - is not done on the bearing surface but concentrates upon the fillet radii to compact and harden that high stress area. Needs to be done by a VERY competent shop though ... just bombarding a crank with steel shot is NOT 'shot peening' - it is much more technical than that!
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This needs to be done when reshaping the counterweights, correct? I know it does for polishing and lightening connecting rods.
Harold