Crankshaft: Testing and Inspection

1. Check crankshaft main and pin journals for score, wear or cracks.
2. With a micrometer, measure journals for taper and out-of-round.
^ Out-of-round (X - Y) is less than 0.005 mm (0.0002 inch).
^ Taper (A - B) is less than 0.002 mm (0.0001 inch).





3. Measure crankshaft runout.
^ The total indicator reading is less than 0.04 mm (0.0016 inch).