GM Service Manual Online
For 1990-2009 cars only

Tools Required

    • J 6125-1B Slide Hammer with Adapter
    • J 41818 Crankshaft Bearing Cap Remover

    Object Number: 1801642  Size: SH
  1. Remove the engine assembly. Refer to Engine Replacement .
  2. Remove both cylinder head assemblies.
  3. Remove the oil pan assembly.
  4. Remove the piston and connecting rod assemblies. Refer to Piston, Connecting Rod, and Bearing Removal .
  5. Remove the oil pump assembly.
  6. Remove the crankshaft rear oil seal and plate assembly.
  7. Remove the crankshaft position sensor.
  8. Remove the crankshaft bearing cap side bolts (3).
  9. Important: The crankshaft bearing cap outer bolts are yield tightened during assembly and must be replaced prior to reassembly. Crankshaft bearing cap outer bolts that are not replaced will not torque to the correct clamp load and can lead to serious engine damage.

  10. Remove the crankshaft bearing cap outer bolts (1).
  11. Remove the crankshaft bearing cap inner bolts (2).

  12. Object Number: 1801644  Size: SH
  13. Loosen the nuts (1) of the J 41818  (2) to separate the chamfered collets.
  14. Notice: Refer to Fastener Notice in the Preface section.

  15. Install the collets into the inner bolt holes of the front main bearing cap (3).
  16. Tighten
    Tighten the remover nuts to 11 N·m (97 lb in).

  17. Install J 6125-B  (4) onto the crankshaft bearing cap remover and remove the crankshaft bearing cap.
  18. Repeat steps 9 to 13 for the remaining crankshaft bearing caps.

  19. Object Number: 1801648  Size: SH
  20. Remove the crankshaft (1) from the engine block  (2), lifting evenly to avoid jamming against the main thrust bearing.
  21. Place the crankshaft in a secure place.

  22. Object Number: 1801652  Size: SH
  23. If required, remove the crankshaft sprocket drive pin (1) from the crankshaft (2),