GM Service Manual Online
For 1990-2009 cars only

Oil Pump and Crankshaft Oil Deflector Installation 7.0L

Tools Required

J 41480 Front and Rear Cover Alignment


    Object Number: 1552488  Size: SH

    Important: Inspect the oil pump and engine block oil gallery passages. These surfaces must be clear and free of debris or restrictions.

  1. Align the splines of the crankshaft sprocket and the oil pump drive gears, and install the oil pump (413).
  2. Install the oil pump onto the crankshaft sprocket until the pump housing contacts the face of the engine block.
  3. Install the oil pump bolts (411). Do not tighten the bolts at this time.

  4. Object Number: 1552559  Size: SH
  5. Align the oil pump surfaces (1) with the engine block surfaces (2). The oil pump must be aligned flush or no greater than 0.1 mm (0.04 in) below the engine block oil pan rail.
  6. Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 1552560  Size: SH
  7. Install the J 41480 and bolts to the engine block.
  8. Tighten
    Tighten the J 41480 bolts to 25 N·m (18 lb ft).

  9. Firmly push the oil pump until the pump surfaces contact the J 41480 . Continue to retain the pump to the J 41480 .
  10. Tighten
    Tighten the oil pump bolts to 25 N·m (18 lb ft).


    Object Number: 1552545  Size: SH
  11. Install the crankshaft oil deflector (425) and nuts (403). Install the deflector onto the engine with the word "Rear" at the back of the engine block.
  12. Tighten
    Tighten the crankshaft oil deflector nuts to 25 N·m (18 lb ft).