32. Camshaft and Bearings Clean and Inspect

Camshaft and Bearings Cleaning and Inspection

^ Tool Required
- J 7872 Magnetic Base Dial Indicator

1. Clean the camshaft in solvent.

Caution: Refer to Safety Glasses Caution in Service Precautions.

2. Dry the camshaft with compressed air.
3. Inspect the camshaft for the following conditions:
^ Worn, scored, or damaged bearing journals
^ Worn camshaft lobes
^ Damaged sprocket pin





4. Measure the camshaft journals with a micrometer 27.939 - 27.960 mm (1.099 - 1.101 inch).
5. Measure for a bent camshaft or excessive camshaft runout using J 7872.
A. Mount the camshaft in V-blocks between centers.
B. Use the J 7872 in order to measure for a bent camshaft. Radial runout 0.06 mm (0.0023 inch).
6. Replace the camshaft if runout exceeds specifications.
7. Inspect the camshaft bearings and bearing cap surfaces for the following:
^ Wear
^ Scoring
^ Overheating from lack of lubrication
8. Inspect the bearing clearances with gaging plastic.
9. Inspect the camshaft for excessive end play.
10. The camshaft bearing surfaces are machined into the cylinder head and are not serviceable.