GM Service Manual Online
For 1990-2009 cars only

Tools Required

    • J 24270 Cylinder Bore Ridge Reamer or SA9187NE Cylinder Ridge Reamer
    • J 41742 Connecting Rod Guide Pin

    Object Number: 897144  Size: SH
  1. Rotate the engine to position the piston (120) at bottom dead center (BDC) in the cylinder.

  2. Object Number: 897143  Size: SH
  3. If a ridge of metal or hard carbon can be felt around the top of any cylinder, use the J 24270 , SA9187NE , or equivalent, in order to remove the cylinder ridge.

  4. Object Number: 1308109  Size: SH
  5. Remove the bolts (115), cap (116), pins (128) and lower bearing half (117).

  6. Object Number: 1308086  Size: SH
  7. Use the J 41742 in order to remove the piston and connecting rod assembly from the block.
  8. Remove the upper bearing half from the connecting rod.
  9. Install the cap onto the connecting rod and mark or sort the bearings for assembly. Refer to Separating Parts .