GM Service Manual Online
For 1990-2009 cars only

    Object Number: 2146355  Size: SH
  1. Lubricate all oil pump parts with engine oil.
  2. Install the inner gear (2) into the outer gear (3).
  3. Note: If gears are improperly installed in the front cover, the gerotor cover will not bolt on.

  4. Install the gears together into the front cover (4) with the hub of the center gear facing the front cover.
  5. Caution: Refer to Fastener Caution in the Preface section.

  6. Install the oil pump gerotor cover (1) and bolts. Tighten the oil pump gerotor bolts to 6 N·m (53 lb in).

  7. Object Number: 2146354  Size: SH
  8. Install the pressure relief valve plunger (3).
  9. Install the pressure relief valve spring (2).
  10. Install the pressure relief valve plug (1) and tighten to 40 N·m (30 lb ft).