GM Service Manual Online
For 1990-2009 cars only

Engine Flywheel Removal M/L Van and G Van


    Object Number: 188130  Size: SH
  1. Remove the engine flywheel bolts.
  2. Remove the engine flywheel.

Engine Flywheel Removal S/T Truck and C/K 800 Truck


    Object Number: 188129  Size: SH
  1. Remove the engine flywheel bolts.
  2. Remove the engine flywheel (1), automatic transmission, if applicable.
  3. Remove the engine flywheel (2), manual transmission, if applicable.

  4. Object Number: 64126  Size: SH

    Important: If replacing the engine flywheel, manual transmission, NEW flywheel weights must be installed into the NEW engine flywheel in the same location as the old flywheel weights in the old engine flywheel.

  5. Note the position of any flywheel weights for assembly, if applicable.

Removal Procedure


    Object Number: 188130  Size: SH
  1. Remove the transmission assembly. Refer to Transmission Replacement in Automatic Transmission.
  2. Remove the bolts and the engine flywheel.
  3. Clean and inspect all parts. Refer to Engine Flywheel Cleaning and Inspection .

Installation Procedure


    Object Number: 188130  Size: SH
  1. Install the engine flywheel to the crankshaft.
  2. Align the locator hole to the pin.

  3. Object Number: 63174  Size: SH

    Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  4. Install the engine flywheel bolts.
  5. Tighten
    Tighten the engine flywheel bolts in sequence (1-6) to 100 N·m (74 lb ft).

  6. Install the transmission assembly. Refer to Transmission Replacement in Automatic Transmission.