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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 406 (Engine Mechanical - 3.5L (On-Vehicle)) >> Repair Instructions >> Cylinder Head Replacement - Left >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2002 Oldsmobile Aurora. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the intake manifold. Refer to Intake Manifold Replacement .
  2. Remove the water housing crossover. Refer to WATER CROSSOVER REPLACEMENT (LX5) or WATER CROSSOVER REPLACEMENT (L47) in Engine Cooling.
  3. Remove the left exhaust manifold. Refer to EXHAUST MANIFOLD REPLACEMENT - LEFT (LX5) or EXHAUST MANIFOLD REPLACEMENT - LEFT (L47) in Engine Exhaust.
  4. Remove the camshaft covers. Refer to Camshaft Cover Replacement - Left 
  5. Install the J 42038  on the camshafts.
  6. Remove the primary camshaft drive chain. Refer to Primary Camshaft Drive Chain Replacement .
  7. Remove the left cylinder head camshafts. Refer to Camshaft Replacement- Left .

    Important:  Place the valve train parts in a rack in order to make sure that they are installed in the same location from which they were removed.

    Fig 1: Removing Cylinder Head & Bolts
    G01816922Courtesy of GENERAL MOTORS CORP.
  8. Remove the valve rocker arms.
  9. Remove the lifters.
  10. Remove the M6 external drive bolts (1, 3) from the front portion of the cylinder head. Note the location of the longer M6 bolt (1).
  11. Remove and discard the M11 internal drive cylinder head bolts (2). DO NOT reuse the cylinder head bolts.
  12. Remove the cylinder head. Make sure that no dowel guide pins are stuck in the cylinder head.
  13. Remove the cylinder head gasket. Make sure all of the gasket material is removed.
  14. Place the cylinder head on a flat, clean surface with the combustion chambers face-up in order to prevent damage to the deck face.
  15. Clean and inspect the cylinder head. Refer to CYLINDER HEAD CLEANING AND INSPECTION in Engine Mechanical-3.5L Unit Repair.
    Fig 2: Removing Cylinder Head Gasket
    G01816923Courtesy of GENERAL MOTORS CORP.
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