Crankshaft and Bearing Clean and Inspect
Crankshaft and Bearings Cleaning and InspectionCleaning Procedure
1. Clean the following components in solvent:
^ Crankshaft bearings
^ Connecting rod bearings
^ Crankshaft journals
^ Crankpin journals
^ Crankshaft oil passages
^ Crankshaft threaded holes
Caution: Refer to Safety Glasses Caution in Service Precautions.
2. Dry the following components with compressed air:
^ Crankshaft bearings
^ Connecting rod bearings
^ Crankshaft journals
^ Crankpin journals
^ Crankshaft oil passages
^ Crankshaft threaded holes
Visual Inspection
1. Perform the following visual inspections:
^ Inspect the crankshaft balancer bolt hole (1) for thread damage
^ Inspect the crankshaft balancer mounting area (2) for damage
^ Inspect the crankshaft sprocket pin hole (3) for damage
^ Inspect the crankshaft main journals (4) for damage
^ Inspect the crankshaft connecting rod journals (5) for damage
^ Inspect the crankshaft oil passages (6) for obstructions
^ Inspect the crankshaft main bearing thrust wall surfaces (7) for damage
^ Inspect the crankshaft reluctor ring teeth (8) for damage
^ Inspect the crankshaft counterweights (9) for damage
^ Inspect the crankshaft rear main oil seal surface (10) for damage
^ Inspect the crankshaft engine flywheel mounting surface (11) for damage
^ Inspect the crankshaft engine flywheel bolt holes (12) for thread damage
^ Inspect the crankshaft pilot hole (13) for damage
2. Repair or replace the crankshaft as necessary.