GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Tools Required

    • J 36660-A Torque Angle Meter
    • J 41507 Connecting Rod Assembly Guide
  1. Remove the oil pan. Refer to Oil Pan Replacement .

  2. Object Number: 34671  Size: SH
  3. Remove the connecting rod cap bolts.
  4. Remove the connecting rod caps.
  5. Important: Keep the bearings with the original connecting rod and cap. Do this in order to reassemble the connecting rod.

  6. Remove the connecting rod bearings.
  7. Install the J 41507 to the connecting rod.
  8. Wipe the oil from the bearings.
  9. Inspect the connecting rod bearings.
  10. Measure the bearing clearance.

Installation Procedure

    Notice: Do not scrape, shim, or file bearing inserts. If the bearing surface of the insert is touched with bare fingers, the skin oil and acids will etch the bearing surface.


    Object Number: 34671  Size: SH

    Important: Ensure that the bearing cap bolt holes and the cap mating surfaces are clean and dry.

  1. Dip the bearing cap bolts in clean engine oil.
  2. Use clean engine oil in order to lubricate the bearing surface.
  3. Install the connecting rod.
  4. Remove the J 41507 .
  5. Install the bearing cap. Use a brass or leather mallet in order to tap the cap gently into place.
  6. Install the connecting rod bolts.
  7. Tighten
    Tighten the bolts to 27 N·m (20 lb ft). Use the J 36660-A in order to rotate the bolts an additional 50°.

    Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  8. Pry the connecting rod back and forth in order to check for binding. If necessary, loosen and then retighten the bearing cap.

  9. Object Number: 35206  Size: SH
  10. Measure the connecting rod side clearance.
  11. Install the oil pan. Refer to Oil Pan Replacement .