GM Service Manual Online
For 1990-2009 cars only

Tools Required

    • J 36660-A Torque Angle Meter
    • J 8037 Piston Ring Compressor

    Object Number: 236267  Size: SH
  1. Install the connecting rod bearings. Use the proper size bearings.
  2. Lubricate the connecting rod bearings with engine oil.

  3. Object Number: 236293  Size: SH
  4. Install the piston and the connecting rod to the correct bore.
  5. 3.1. Stagger each piston ring end gap equally around the piston.
    3.2. Lubricate the piston and the piston rings with engine oil.
    3.3. Install J 8037 over the piston. Do not disturb the piston ring end gap location.
    3.4. The piston must be installed so that the mark on the top of the piston (1) faces the front of the engine.
    3.5. Place the piston in its matching bore.
    3.6. Tap the piston into its bore with a hammer handle. Guide the connecting rod to the connecting rod journal while tapping the piston into place.
    3.7. Hold the J 8037 against the engine block until all the rings have entered the cylinder bore.

    Object Number: 236295  Size: SH

    Important: Ensure that the connecting rod cap is properly oriented on the connecting rod.

  6. Install the connecting rod caps.

  7. Object Number: 236149  Size: SH

    Notice: This bolt is designed to permanently stretch when tightened, and therefore MUST be replaced anytime it is removed. The correct part number fastener must be used to replace this type of fastener. Do not use a bolt that is stronger in this application. If the correct bolt is not used, the parts will not be tightened correctly. The system or the components may be damaged.

    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. Install the connecting rod cap bolts.
  9. Tighten
    Tighten the connecting rod cap bolts to 20 N·m (15 lb ft), then rotate 90 degrees using the J 36660-A .

  10. Install the remaining connecting rods and piston assemblies.