GM Service Manual Online
For 1990-2009 cars only

Special Tools

    • EN-46106 Engine Flywheel Holding Tool
    • J-41998-B Crankshaft Balancer Installer
    • J-45059 Angle Meter
        For equivalent regional tools, refer to Special Tools.

    Object Number: 945978  Size: SH
  1. The EN-46106 tool must be installed onto the flywheel.
  2. Use the J-41998-B installer , nut, bearing and washer to install the crankshaft balancer.

  3. Object Number: 1864550  Size: SH

    Note: Do not lubricate the crankshaft front oil seal or crankshaft balancer sealing surfaces. The crankshaft balancer is installed into a dry seal.

  4. Apply lubricant to the inside of the crankshaft balancer hub bore.

  5. Object Number: 1864551  Size: SH
  6. Place the crankshaft balancer in position on the crankshaft.
  7. Thread the J-41998-B installer in the crankshaft. Ensure you engage at least 10 threads of the J-41998-B installer before pressing the crankshaft balancer in place.
  8. Push the crankshaft balancer into position by tightening the nut on the J-41998-B installer until the large washer bottoms out on the crankshaft end.
  9. Remove the J-41998-B installer .

  10. Object Number: 1864410  Size: SH
  11. Install the crankshaft balancer bolt.
  12. Caution: Refer to Fastener Caution in the Preface section.

  13. Tighten the crankshaft balancer bolt to 100 N·m (74 lb ft) and an additional 150 degrees using the J-45059 meter .

  14. Object Number: 945978  Size: SH
  15. Remove the EN-46106 tool .