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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1400 (Engine Mechanical - 3.1L V6 - VIN (J)) >> Repair Instructions >> On-Vehicle repair Instructions >> Connecting Rod Bearing Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2003 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: 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.
IMPORTANT: Ensure that the connecting rod cap bolt holes and the connecting rod cap mating surfaces are clean and dry.
  1. Use clean engine oil in order to lubricate the bearing surface.
  2. Install the upper connecting rod bearing.
  3. Use the J 5239  to pull down the piston, the connecting rod and the upper connecting rod bearing.
  4. Remove the J 5239. 
  5. Install the lower connecting rod bearing to the connecting rod cap.
    Fig 1: Installing Connecting Rod Cap, Nuts & Upper/Lower Connecting Rod Bearing
    G01967975Courtesy of GENERAL MOTORS CORP.
  6. Install the connecting rod cap.
    NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
  7. Install the connecting rod cap nuts.

    Tighten 

    1. 7.1. Tighten the nuts to 20 N.m (15 lb ft).
    2. 7.2. Use the J 36660-A  to rotate the nuts an additional 75 degrees.
  8. Pry the connecting rod back and forth in order to check for binding. If necessary, loosen and then retighten the connecting rod cap nuts.
  9. Measure the connecting rod side clearance. Refer to ENGINE MECHANICAL SPECIFICATIONS  .
    Fig 2: Measuring Connecting Rod Side Clearance
    G01967976Courtesy of GENERAL MOTORS CORP.
  10. Install the crankshaft oil deflector.
  11. Install the crankshaft oil deflector nuts.

    Tighten 

    Tighten the nuts to 25 N.m (18 lb ft).

    Fig 3: Installing Crankshaft Oil Deflector & Nuts
    G01967977Courtesy of GENERAL MOTORS CORP.
  12. Install the oil pump driveshaft and the oil pump.
  13. Install the oil pump bolt.

    Tighten 

    Tighten the bolt to 41 N.m (30 lb ft).

    Fig 4: Installing Oil Pump Driveshaft And Oil Pump
    G01967978Courtesy of GENERAL MOTORS CORP.
  14. Install the spark plugs to the cylinders that was serviced. Refer to SPARK PLUGS in Removal & Installation.
  15. Install the oil pan. Refer to OIL PAN REPLACEMENT  .
  16. Inspect for proper oil pressure.
  17. Inspect for leaks.
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