Operation CHARM: Car repair manuals for everyone.

Timing Belt: Testing and Inspection






INSPECTION










1. Remove the upper timing belt cover Engine Timing Cover(s) - Removal.
2. Inspect all four surfaces of the timing belt. The sides are normal if they are sharp as if cut by a knife. Replace the belt if any of the following conditions exist:
- Vehicle mileage or time at component maintenance requirement Maintenance.
- Back side rubber is glossy or hardening without resilience and leaves no indent when pressed with a fingernail.
- Surface peeling (1 and 5).
- Missing teeth (2).
- Rubber exposed (3).
- Any cracks (4) in rib root, belt sides or rubber back.
- Rounded edge (6).
- Exposed fluffy strands (7).

3. If none of the above conditions are seen on the timing belt, the timing belt cover can be installed Engine Timing Cover(s) - Installation.
4. Replace the timing belt if it does not pass inspection Timing Belt - Removal.