37. Camshaft and Bearings Cleaning and Inspection

Camshaft and Bearings Cleaning and Inspection

Tools Required

^ J 7872 Magnetic Base Dial Indicator

1. Clean the camshaft in solvent.

2. Caution: Refer to Safety Glasses Caution.

Dry the camshaft with compressed air.





3. Inspect the camshaft retainer plate for damage.
4. Inspect the camshaft for the following conditions:
^ Camshaft bearing journals (1) that are:
^ Worn
^ Scored
^ Damaged
^ Worn camshaft lobes (2)
^ Damaged sprocket bolt threads (3)
^ Damaged sprocket pin (206)





5. Measure the camshaft journals with a micrometer.





6. Measure for excessive camshaft runout, using the J 7872.
1. Mount the camshaft in a suitable fixture.
2. Use the J 7872 in order to measure for a bent camshaft. Refer to Engine Mechanical Specifications.
7. Replace the camshaft if runout exceeds specifications.





8. Inspect the camshaft bearings (1-5) for wear or damage.
9. Replace the camshaft bearings, if necessary.