Crankshaft Inspection

Crankshaft Inspection

Out-of-Round and Taper

1. Remove the crankshaft from the engine block Crankshaft And Piston Removal.

2. Remove the CKP pulse plate from the crankshaft CKP Pulse Plate Replacement.

3. Check the crankshaft oil passages with pipe cleaners or a suitable brush.

4. Check the keyway slot and the thread holes for damage.

5. Measure the 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.









6. Measure the 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.






Straightness

7. Place the crankshaft on a flat surface supported on V-blocks.

8. Check the total runout of the crankshaft.

9. Measure the runout on all of the main journals. Rotate the crankshaft two complete revolutions. The difference between measurements on each journal must not be more than the service limit.