Crankshaft Inspection

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 crankshaft is not bent.
- The difference between measurements on each journal must not be more than the service limit.

Crankshaft Total runout:
Standard (New): 0.020 mm (0.0008 inch)maximum
Service Limit: 0.030 mm (0.0012 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): 0.005 mm (0.0002 inch)maximum
Service Limit: 0.010 mm (0.0004 inch)

- Measure taper at the edges 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)maximum
Service Limit: 0.010 mm (0.0004 inch)