Crankshaft: Testing and Inspection

1. Check the crankshaft journals and pins for damage, uneven wear and cracks. Also check oil holes for clogging.






2. Using suitable micrometers, inspect out-of-roundness and taper of crankshaft journal and pin as shown in the illustration.
Standard value:
Crankshaft journal O.D 56.980-56.995 mm (2.2433-2.2439 inch).
Crankshaft pin O.D 44.980-44.995 mm (1.7709-1.7715 inch).
Wear Limit:
Maximum out of round, 0.015 mm (0.0006 inch).
Maximum taper, 0.005 mm (0.0002 inch).