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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 548 (Engine Mechanical - 2.2L) >> Removal And Installation >> In-Vehicle >> Camshaft, Follower And Valve Adjuster Replacement >> Installation

Camshaft, Follower And Valve Adjuster Replacement: Installation

WARNING: This page is about a different car, the 2003 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: If valve stem seal are removed, they must be discarded. The valve stem lock groove will cut the seals lip during removal. Use extreme care not to damage valve stems when installing retainers.
Fig 1: Cleaning And Inspecting Valve Stem
G01039335Courtesy of GENERAL MOTORS CORP.
  1. Install lubricated lash adjusters in their correct locations.
    Fig 2: Installing Lubricated Lash Adjuster
    G01039336Courtesy of GENERAL MOTORS CORP.
  2. Install rocker arms (followers).
    Fig 3: Installing Rocker Arms
    G01039337Courtesy of GENERAL MOTORS CORP.
  3. Lubricate camshaft bearing journals with clean engine oil and install both camshafts.
  4. When installing camshafts, attempt to position camshaft slot in line with notch on sprockets.
  5. Install all bearing caps except for front cap and rear intake camshaft cap (if serviced). Tighten down bearing cap uniformly.

    Torque: 

    Camshaft Bearing Cap Bolts: 10 N.m (89 in-lbs) 

    Fig 4: Installing Camshaft Bearing Cap Bolts
    G01039338Courtesy of GENERAL MOTORS CORP.
    NOTE: Verify timing chain is properly positioned on the fixed guide or guide damage will occur.

    IMPORTANT:  Ensure that alignment slots are correctly aligned with notches in camshaft sprockets before final torque is applied.

    IMPORTANT:  Verify camshafts are properly timed as outlined in this section prior to starting engine.

  6. Slide camshaft sprocket(s) and timing chain on guide pins toward camshaft(s). Rotate camshaft(s) with 24 mm open-end wrench to properly align camshaft(s) and sprockets.
    Fig 5: Aligning Camshaft And Sprockets
    G01039339Courtesy of GENERAL MOTORS CORP.
  7. Install new camshaft sprocket bolts and tighten. This will pull camshaft sprockets and camshafts together. Hold camshaft with 24 mm open-end wrench during tightening.

    Torque: 

    Camshaft Sprocket Bolts: 85 N.m (63 ft-lbs)+30° 

    Fig 6: Installing Camshaft Sprocket Bolts
    G01039340Courtesy of GENERAL MOTORS CORP.
  8. Remove Camshaft Sprocket Holding Tool J43655.
  9. Install front camshaft caps.

    Torque: 

    Camshaft Bearing Cap Bolts: 10 N.m (89 in-lbs) 

    Fig 7: Removing Camshaft Sprocket Holding Tool
    G01039341Courtesy of GENERAL MOTORS CORP.

    IMPORTANT:  Apply Permatex® Medium Blue P/N 21485277 to upper timing chain guide bolts.

  10. Install upper timing chain guide and bolts.

    Torque: 

    Timing Chain Guide Bolts: 10 N.m (89 in-lbs) 

    Fig 8: Installing Upper Timing Chain Guide And Bolts
    G01039342Courtesy of GENERAL MOTORS CORP.

    IMPORTANT:  Apply Permatex Flange Sealant 51531 Purple to cylinder head near the rear intake cap as shown.

  11. Install rear intake camshaft bearing cap.

    Torque: 

    Intake Camshaft Rear Cap: 25 N.m (18 ft-lbs) 

    Fig 9: Installing Rear Intake Camshaft Bearing Cap
    G01039343Courtesy of GENERAL MOTORS CORP.
  12. Install power steering block off plate.

    Torque: 

    Power Steering Block Off Plate: 25 N.m (18 ft-lbs) 

    Fig 10: Installing Power Steering Block Off Plate
    G01039344Courtesy of GENERAL MOTORS CORP.
  13. Visually inspect camshaft cover gasket for signs of leakage. Camshaft cover gasket is reusable if not damaged.
  14. Assemble camshaft cover and gasket. Use care to make sure that gasket is located in retaining groove on camshaft cover.
  15. Install cover on cylinder head and hand-tighten bolts.

    Torque: 

    Camshaft Cover Bolts: 10 N.m (89 in-lbs) 

    Fig 11: Installing Cover On Cylinder Head
    G01039345Courtesy of GENERAL MOTORS CORP.
  16. Re-position fuel line assembly.
    NOTE: An open-end wrench must be used to support the fuel line to rail connection during loosening/tightening to avoid damaging fuel rail assembly.
  17. Install transfer line fitting at fuel-to-fuel rail.

    Torque: 

    Transfer Line Fitting-to-Fuel Rail: 10 N.m (89 in-lbs) 

    Fig 12: Installing Transfer Line Fitting At Fuel-To-Fuel Rail
    G01039346Courtesy of GENERAL MOTORS CORP.
  18. Connect fuel rail bracket and bolt to cylinder head.

    Torque: 

    Fuel Line Bracket Bolt: 10 N.m (89 in-lbs) 

    Fig 13: Connecting Fuel Rail Bracket
    G01039347Courtesy of GENERAL MOTORS CORP.
  19. Connect ground strap to camshaft cover assembly.

    Torque: 

    Camshaft Cover Ground Strap Bolts: 10 N.m (89 in-lbs) 

  20. Connect degas hose and clamp to cylinder head.
  21. Connect degas hose bracket and bolt to cylinder head.
    Fig 14: Connecting Ground Strap To Camshaft Cover Assembly
    G01039348Courtesy of GENERAL MOTORS CORP.
  22. Install spark plugs.

    Torque: 

    Spark Plugs: 20 N.m (15 ft-lbs) 

    Torque: 

    Coolant Pipe Bracket Bolts: 10 N.m (89 in-lbs) 

    Fig 15: Installing Spark Plugs
    G01039349Courtesy of GENERAL MOTORS CORP.
  23. Install ignition module assembly to cam cover and hand-tighten retaining bolts.

    Torque: 

    Ignition Module-to-Camshaft Cover Bolts: 8 N.m (71 in-lbs) 

    Fig 16: Installing Ignition Module Assembly To Cam Cover
    G01039350Courtesy of GENERAL MOTORS CORP.
  24. Position outlet resonator/duct assembly into position.
  25. Connect PCV fresh air vent hose assembly.
  26. Tighten clamp at throttle body assembly.
  27. Position outlet resonator/duct assembly up with support bracket and install push-pin.
  28. Tighten clamp at air cleaner assembly.
  29. Connect intake air temperature (IAT) sensor connector.
  30. Connect negative battery cable.

Torque: 

Battery Terminal Bolt: 17 N.m (13 ft-lbs) 

Fig 17: Installing Outlet Resonator/Duct Assembly
G01039351Courtesy of GENERAL MOTORS CORP.