Crankshaft: Testing and Inspection

INSPECTION
(1) The crankshaft journals should be checked for excessive wear, taper and scoring. Limits of taper or out-of-round on any crankshaft journals should be held to 0.025 mm (0.001 inch). Journal grinding should not exceed 0.508 mm (0.020 inch) under the standard journal diameter. DO NOT grind thrust faces of No. 3 main bearing. DO NOT nick crank pin or bearing fillets. After grinding, remove rough edges from crankshaft oil holes and clean out all passages.

CAUTION: With the forged crankshafts it is important that the final paper or cloth polish after any journal regrind be in the same direction as normal rotation in the engine.

(2) Check and clean all oil holes for blockage and debris.