Camshaft Timing Chain and Sprocket Cleaning and Inspection

WARNING: This page is about a different car, the 2009 Pontiac Torrent and 2009 Chevrolet Equinox. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: View Of Camshaft & Crankshaft Sprockets Timing Marks Aligned

Courtesy of GENERAL MOTORS CORP.

WARNING: Bodily injury may occur if the cleaning solvent is inhaled or exposed to the skin.

Clean all components with cleaning solvent.
Dry the components with compressed air.
Inspect the timing chain for binding or wear.

Fig 2: Identifying Damaged Sprocket Teeth

Courtesy of GENERAL MOTORS CORP.

Inspect the camshaft and crankshaft sprockets for:
- Worn teeth (1)
- Broken teeth (2)
- Chipped teeth (3)
Inspect the timing chain dampener for excessive wear or cracks.