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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 126 (Engine Mechanical - 4.8L, 5.3L, 6.0L And 6.2L (2 Of 5)) >> On-Vehicle Repair Instructions (1 Of 2) >> Valve Rocker Arm Cover Replacement - Right Side >> Installation Procedure

Installation Procedure

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IMPORTANT:
  • All gasket surfaces should be free of oil or other foreign material during assembly.
  • DO NOT reuse the valve rocker arm cover gasket.
  • If the oil fill tube has been removed from the rocker arm cover, install a NEW fill tube during assembly.
    Fig 1: Oil Fill Cap & Oil Fill Tube
    GM1559860Courtesy of GENERAL MOTORS CORP.
  1. Lubricate the O-ring seal (422) of the NEW oil fill tube with clean engine oil.
  2. Insert the NEW oil fill tube (423) into the rocker arm cover.

    Rotate the tube clockwise until locked in the proper position.

  3. Install the oil fill cap (424) into the tube.

    Rotate the cap clockwise until locked in the proper position.

    4. Fig 2: Rocker Arm Cover Gasket
    GM490696Courtesy of GENERAL MOTORS CORP.
  4. Install a NEW rocker cover gasket (1) into the valve rocker arm cover lip.
    5. Fig 3: View Of Valve Rocker Arm Cover (Right)
    GM832211Courtesy of GENERAL MOTORS CORP.
  5. Install the valve rocker arm cover.
    6. NOTE: Refer to Fastener Notice .
  6. Tighten the rocker arm cover bolts.

    Tighten:  Tighten the bolts to 12 N.m (106 lb in).

    7. Fig 4: View Of PCV Tube & Right Valve Rocker Arm Cover Fitting
    GM1696757Courtesy of GENERAL MOTORS CORP.
  7. Install the PCV tube (1) to the valve rocker cover (2).
    8. Fig 5: Ignition Coils & Bracket
    GM1402028Courtesy of GENERAL MOTORS CORP.
  8. Apply threadlock GM P/N 12345382 (Canadian P/N 10953489), or equivalent to the threads of the ignition coil bracket studs.
  9. Position the ignition coil bracket (719) onto the rocker cover.
  10. Install the ignition coil bracket studs (720).

    Tighten:  Tighten the studs to 12 N.m (106 lb in).

  11. Install the spark plug wires (724) to the ignition coils.
    12. Fig 6: View Of Heater Hose Bracket & Nut
    GM1697280Courtesy of GENERAL MOTORS CORP.
  12. Install the heater hose bracket and nut.

    Tighten:  Tighten the nut to 9 N.m (80 lb in).

    13. Fig 7: View Of Radiator Surge Tank Outlet Hose, Clamp & Water Pump
    GM1697283Courtesy of GENERAL MOTORS CORP.
  13. Install the surge tank outlet hose (2) to the heater hose bracket (3).
    14. Fig 8: View Of Heater Inlet Hose, Clamp & Waterpump
    GM1697282Courtesy of GENERAL MOTORS CORP.
  14. Install the heater inlet hose (2) to the heater hose bracket (3).
    15. Fig 9: View Of Generator Battery Jumper Cable & Components
    GM1699546Courtesy of GENERAL MOTORS CORP.
  15. Position the generator battery cable as necessary.
  16. Install the generator battery cable clip (1) to the ignition coil bracket stud.
    17. Fig 10: Identifying Right Side Main Electrical Connectors
    GM1235686Courtesy of GENERAL MOTORS CORP.
  17. Position the engine wiring harness (electronic throttle control branch) as necessary.
  18. Install the engine wiring harness (electronic throttle control branch) clip (6) to the ignition coil bracket stud.
  19. Connect the engine harness electrical connector (1) to the ignition coil wire harness.
  20. Install the CPA retainer (2).
  21. Install the intake manifold cover. Refer to Upper Intake Manifold Sight Shield Replacement .
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