GM Service Manual Online
For 1990-2009 cars only

Tools Required

    • J 38416-B Harmonic Balancer Remover
    • J 42846 Crankshaft Protector Button
    • J 42847 Flywheel Holding Tool

    Object Number: 470799  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.

    Important: Ensure that the teeth of the flywheel holding tool engage the engine flywheel teeth.

  1. Install the J 42847 to the starter bolt holes.
  2. Tighten
    Tighten the J 42847 bolts to 50 N·m (37 lb ft).

  3. Remove the crankshaft balancer bolt and washer.

  4. Object Number: 640013  Size: SH
  5. Install the J 42846 onto the end of the crankshaft.

  6. Object Number: 640014  Size: SH
  7. Install the J 38416-B  (2) in order to remove the crankshaft balancer. Place the legs of the J 38416-B into the recesses cast into the backside of the balancer inner hub.
  8. Tighten the center screw of the J 38416-B until the crankshaft balancer is clear of the crankshaft nose.

  9. Object Number: 640015  Size: SH
  10. Remove the J 38416-B .
  11. Remove the crankshaft balancer.
  12. Remove the J 42846 from the end of the crankshaft.
  13. Remove the J 42847 .