GM Service Manual Online
For 1990-2009 cars only

Tools Required

    • J 8433-1 Puller Bar
    • J 41558 Crankshaft Sprocket Remover
    • J 41816-2 Crankshaft End Protector

    Object Number: 1272848  Size: SH

    Notice: Do not turn the crankshaft assembly after the timing chain has been removed in order to prevent damage to the piston assemblies or the valves.

  1. Remove the camshaft sprocket bolts.
  2. Remove the camshaft sprocket and timing chain.

  3. Object Number: 1272946  Size: SH
  4. Remove the chain dampener (232) and bolts (231).

  5. Object Number: 63189  Size: SH
  6. Use the J 8433-1 , the J 41816-2 , and the J 41558 in order to remove the crankshaft sprocket.

  7. Object Number: 156150  Size: SH
  8. Remove the crankshaft sprocket.

  9. Object Number: 156149  Size: SH
  10. Remove the crankshaft sprocket key, if required.