30. Timing Chain and Sprocket Clean and Inspect
Timing Chain and Sprockets Cleaning and Inspection1. Inspect the timing chain guides for cracking or wear.
2. Replace the timing chain guides if wear exceeds 1.12 mm (0.045 inch).
3. Inspect the timing chain tensioner shoe for wear.
4. Inspect the timing chain and sprockets for wear.
5. Inspect the camshaft sprocket faces for signs of movement.
6. Inspect the camshaft sprocket teeth and chain for signs of excessive wear, chipping, or seizure of the timing chain links.