GM Service Manual Online
For 1990-2009 cars only

Tools Required:

    • J 41220 Slinger Remover and Installer
    • J 41221 Oil Seal Remover and Installer

    Object Number: 736784  Size: SH
  1. Install the idler gear shaft to the cylinder block.
  2. Apply clean engine oil to the bushing inside the cylinder block.

  3. Object Number: 736747  Size: SH

    Important: Do not apply sealant over hole (1), this will restrict the flow of oil into the cylinder block.

  4. Apply RTV sealant (Three Bond 1141E or equivalent) to the edge of the oil pump.
  5. Install the oil pump to the cylinder block.
  6. Install the bolts to the oil pump.
  7. Tighten
    Tighten the oil pump bolts to 24 N·m (17 lb ft).

  8. Install the idler gear to the idler gear shaft.
  9. Rotate the crankshaft so that number 1 piston is on top dead center.
  10. Important: Idler gear shaft oil port must be facing the cylinder block.


    Object Number: 736748  Size: SH
  11. Align the crankshaft gear mark L and the idler gear mark O.
  12. Important: Apply molybdenum grease to bolts.

  13. Install the idler gear bolt.
  14. Tighten
    Tighten the idler gear bolt in the following steps.

    • First stage: 29 N·m (21 lb ft).
    • Second stage: 75 degrees.