GM Service Manual Online
For 1990-2009 cars only

    Object Number: 2146331  Size: SH

    Note: In order to maintain the proper component balance, contact surface taper, and heat transfer, manual transmission flywheels (1) are NOT to be machined.

  1. Clean the flywheel in solvent (1, 2).
  2. Warning: Refer to Safety Glasses Warning in the Preface section.

  3. Dry the flywheel with compressed air.

  4. Object Number: 2146394  Size: SH
  5. Inspect the manual transmission flywheel (1) for the following conditions:
  6. • 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

    Object Number: 2146391  Size: SH
  7. Inspect the automatic transmission flywheel (1) for the following conditions:
  8. • Damaged ring gear teeth
    • Stress cracks around the flywheel-to-crankshaft bolt hole locations
    • Weight saving holes