GM Service Manual Online
For 1990-2009 cars only

Engine Flywheel Cleaning and Inspection 7.0L


    Object Number: 1552438  Size: SH

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

  1. Clean the flywheel in solvent.
  2. Caution: Refer to Safety Glasses Caution in the Preface section.

  3. Dry the flywheel with compressed air.
  4. Inspect the flywheel for the following conditions:
  5. • Pitted surface (1)
    • Grooved or scored surface (2)
    • Rusted surface (3)
    • Damaged ring gear teeth (4)
    • 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.
    • Missing, bent or damaged pressure plate locating pins (5)
    • The 3 locating pins are installed into the flywheel and spaced 120 degrees apart in order to ensure proper orientation of the clutch pressure plate to the flywheel during assembly.