Crank restoration service for BMW S85 and S65 crankshafts with damaged bearing journal. Return shipping included.
Damaged crank journal will be ground to remove any bearing shell backing steel, weld build-up with appropriate material for crank, ground and polished back to original specification. Optional to have all rod journals ground .0005" under sized to improve oil clearance. All rod and main journals are nitride-hardened to a target of 55-57 Hrc (Rockwell Hardness).