GM Service Manual Online
For 1990-2009 cars only

Special Tools

    • J 41816-A Crankshaft Balancer Remover
    • J 41816-2 Crankshaft End Protector
    • J 42386-A Flywheel Holding Tool

For equivalent regional tools, refer to Special Tools.

    Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 1199283  Size: SH

    Note: 

       • If replacing the crankshaft balancer on manual transmission applications, note the location of any existing balance weights, if applicable. Crankshaft balance weights must be installed into the new balancer in the same location as the old balancer. A properly installed balance weight will be either flush or below flush with the face of the balancer. Refer to Engine Balancing.
       • Do not use the crankshaft balancer bolt again. Install a NEW crankshaft balancer bolt during final assembly.

  1. Install the J 42386-A tool and bolts.
  2. Use 1 M10 - 1.5 x 120 mm and 1 M10 - 1.5 x 45 mm bolt for proper tool operation and tighten the J 42386-A tool bolts to 50 N·m (37 lb ft).


    Object Number: 1408847  Size: SH
  3. Remove the crankshaft balancer bolt (139).

  4. Object Number: 1408848  Size: SH
  5. Use the J 41816-A remover  (1) and the J 41816-2 protector  (2) in order to remove the crankshaft balancer.

  6. Object Number: 1764786  Size: SH
  7. Remove the crankshaft balancer (1).

  8. Object Number: 1759519  Size: SH
  9. Remove the crankshaft balancer washer (1) from the balancer, as required.

  10. Object Number: 63153  Size: SH
  11. Note the position of the crankshaft balance weights, if applicable for manual transmission applications. Refer to Engine Balancing and Crankshaft Balancer Cleaning and Inspection.