GM Service Manual Online
For 1990-2009 cars only

    Object Number: 648073  Size: SH
  1. Remove the 8 mm bolts (2).
  2. Remove the 10 mm bolts (1) in the proper sequence.
  3. Important: Do not gouge the sealing surfaces of the two halves of the cylinder block during disassembly.

  4. Carefully pry the lower crankcase apart from the cylinder block using a screwdriver.
  5. Carefully remove the lower crankcase with the lower bearing inserts.
  6. Notice: Remove the crankshaft carefully in order to avoid damaging the crankshaft journals, the rod, the main bearing inserts, or the connecting rods.


    Object Number: 648049  Size: SH
  7. Remove the crankshaft (1) from the cylinder block.
  8. Remove the bearing inserts from the block.