Crankshaft Inspection
StraightnessNOTE:
^ Clean the crankshaft oil passages with pipe cleaners or a suitable brush.
^ Check the keyway and threads.
1. Remove the crankshaft from the cylinder block.
2. Clean the crankshaft oil passages with pipe cleaners or a suitable brush.
3. Check the keyway and threads; repair as necessary.
4. Support the crankshaft with V-blocks.
5. Measure runout on all main journals to make sure the crank is not bent. Rotate the crankshaft two complete revolutions. The difference between measurements on each journal must not be more than the service limit.
Crankshaft Total Indicator Runout
Standard (New): 0.03 mm (0.001 inch) max.
Service Limit: 0.04 mm (0.002 inch)
Out-of-Round and Taper
6. 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): 0.0025 mm (0.0001 inch) max.
Service Limit: 0.005 mm (0.0002 inch)
7. 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): 0.0025 mm (0.0001 inch) max.
Service Limit: 0.005 mm (0.0002 inch)