Engine Flywheel Cleaning and Inspection

WARNING: This page is about a different car, the 2007 Pontiac G5 Pursuit, 2007 Pontiac G5, and 2007 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying Engine Flywheel

Courtesy of GENERAL MOTORS CORP.

Clean the flywheel in solvent.

CAUTION: Refer to SAFETY GLASSES CAUTION in Cautions and Notices.

Dry the flywheel with compressed air.

Fig 2: Identifying Flywheel & Retaining Bolts

Courtesy of GENERAL MOTORS CORP.

Inspect the manual transmission flywheel for the following:
- Damaged ring gear teeth
- Loose or improperly positioned ring gear
  The ring gear has an interference fit onto the flywheel and should be positioned completely against the flange of the flywheel.
- A scored, grooved or damaged friction surface

Fig 3: View Of Flywheel

Courtesy of GENERAL MOTORS CORP.

Inspect the automatic transmission flywheel for the following:
- Damaged ring gear teeth
- Stress cracks around the flywheel-to-crankshaft bolt hole locations
- Weight saving holes