GM Service Manual Online
For 1990-2009 cars only

Inspection Procedure


    Object Number: 2049772  Size: SH
  1. Measure the block flatness. If it is out of specification, replace it. Refer to Engine Mechanical Specifications.

  2. Object Number: 2033847  Size: SH
  3. Measure the crankshaft bending (1) (out-of-round). If it is out of specification, replace it. Refer to Engine Mechanical Specifications.

  4. Object Number: 2049773  Size: SH
  5. Measure the crankshaft end play. If it is out of specification, replace it. Refer to Engine Mechanical Specifications.

  6. Object Number: 2033848  Size: SH
  7. Cut the plastic gauge (a) the same length of the bearing width and put it on the crankshaft bearing. It should be parallel with the crankshaft.
  8. Install the crankshaft journal bearing and cap.
  9. Remove the connecting rod bearing and cap again.
  10. Measure the clearance of the connecting rod bearing oil. If it is out of specification, replace it. Refer to Engine Mechanical Specifications.