Crankshaft: Service and Repair

INSPECTION
- Clean the crankshaft oil passages with pipe cleaners or a suitable brush.
- Check the keyway and threads.

Alignment





- Measure runout on all main journals to make sure the crank is not bent.
- The difference between measurements on each journal must not be more than the service limit.

Crankshaft Total Indicated Runout:
Standard (New): 0.03 mm (0.001 inch) max.
Service Limit: 0.04 mm (0.002 inch)

Out-of-Round and Taper





- Measure out-of-round at the middle of each rod and main journal in two places.
- The difference between measurements on each journal must not be more than the service limit.

Journal Out Of Round:
Standard (New): 0.004 mm (0.0002 inch) max.
Service Limit: 0.006 mm (0.0002 inch)

- Measure taper at the edge of each rod and main journal.
- The difference between measurements on each journal must not be more than the service limit.

Journal Taper:
Standard (New): 0.005 mm (0.0002 inch) max.
Service Limit: 0.006 mm (0.0002 inch)