Title: Inspect and replace the camshaft and drive belt/chain; verify the correct camshaft timing.
Course: Automotive Technology III (20104-III) > Section: ENGINE REPAIR: Cylinder Head and Valve Train Diagnosis and Repair

Procedure includes checking the drive gear wear and backlash, end play, sprocket and chain wear, overhead cam drive sprocket(s), drive belt(s), belt tension, tensioners, camshaft reluctor ring/tone-wheel, and valve timing components and should include

- conducting a visual inspection of all associated components, including seals
- using specialized tools
- following service manuals and manufacturer guidelines.

Process/Skill Questions:

- How often should the timing belt be checked, and when should it be replaced?
- What is the function of timing belt tensioners?
- What is variable valve timing?