Timing Drive System

INSPECTION
For checking timing drive system wear limits, use the following procedure.
1. Remove right cylinder head cover.





Fig. 118

2. Viewing through the cylinder head timing drive cavity, inspect the primary chain tensioner plunger. Rotate the engine clockwise to remove any chain slack and to achieve the maximum tensioner extension. If a machined groove on the plunger is visible (Fig. 118), the timing chain and/or related components are worn or stretched to service limits.
3. Inspect all chain guides, sprockets and tensioners for wear. Replace as necessary.