38. Timing Chain and Sprocket Cleaning and Inspection

Timing Chain and Sprockets Cleaning and Inspection

Timing Component Alignment Marks:

1. Clean the camshaft timing components in solvent.

2. Caution: Refer to Safety Glasses Caution in Service Precautions.

Dry the components with compressed air.
3. Inspect the camshaft timing chain for binding or wear.





4. Important: If the sprocket or sprockets must be replaced, replace both sprockets to ensure that timing chain centerline alignment is maintained.

Inspect the camshaft and crankshaft sprockets for the following conditions:
^ Worn teeth (1)
^ Damaged teeth (2)
^ Chipped teeth (3)
^ Uneven wear on one edge of the teeth
^ Worn valleys between the sprocket teeth
^ Crankshaft sprocket keyway for wear