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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1290 (Engine Mechanical - 1.8L (LV6)) >> Repair Instructions >> Off-Vehicle Repair Instructions >> Piston, Connecting Rod, and Bearing Installation

Piston, Connecting Rod, and Bearing Installation

WARNING: This page is about a different car, the 2003 Pontiac Vibe. However, it is still accessible from the selected car via links, so may be relevant.

Tools Required 

  1. Install the connecting rod bearings. Use the proper size bearings.
  2. Lubricate the connecting rod bearings with engine oil.
    Fig 1: Installing Connecting Rod Bearings
    G01546979Courtesy of GENERAL MOTORS CORP.
  3. Install the piston and the connecting rod to the correct bore.
    Fig 2: Installing Piston And Connecting Rod To Bore
    G01546980Courtesy of GENERAL MOTORS CORP.
    1. 3.1 Stagger each piston ring end gap equally around the piston.
    2. 3.2 Lubricate the piston and the piston rings with engine oil.
    3. 3.3 Install J 8037  over the piston. Do not disturb the piston ring end gap location.
    4. 3.4 The piston must be installed so that the mark on the top of the piston (1) faces the front of the engine.
    5. 3.5 Place the piston in its matching bore.
    6. 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.
    7. 3.7 Hold the J 8037  against the engine block until all the rings have entered the cylinder bore.

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

  4. Install the connecting rod caps.
    Fig 3: Installing Connecting Rod Caps
    G01546981Courtesy of GENERAL MOTORS CORP.
    NOTE: This bolt is designed to permanently stretch when tightened. 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.
    NOTE: Refer to FASTENER NOTICE .
  5. Install the connecting rod cap bolts.

    Tighten 

    Progressively torque the connecting rod cap bolts using 2 steps.

    1. 5.1 1st Pass 

      Tighten the connecting rod cap bolts to 30 N.m (22 lb ft).

    2. 5.2 2nd Pass 

      Mark the front of the connecting rod cap bolts with paint then rotate 90 degrees using the J 36660-A  .

      Fig 4: Installing Connecting Rod Cap Bolts
      G01546982Courtesy of GENERAL MOTORS CORP.
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