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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 429 (Engine Mechanical - 1.8L (LNK)) >> Repair Instructions >> On-Vehicle Repair Instructions >> Cylinder Head Replacement >> Installation Procedure

Installation Procedure

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.
  1. Install the following items.
    • The lower exhaust manifold heat insulator and heat insulator bolts (5).
    • The exhaust manifold gasket and exhaust manifold (4).
    • The exhaust manifold nuts (2) and bolts (3).
    • The upper exhaust manifold heat insulator and heat insulator bolts (1).
    Fig 1: Locating Exhaust Manifold Components
    G01546415Courtesy of GENERAL MOTORS CORP.
    NOTE: This engine uses special torque to yield head bolts. This design bolt requires a special tightening procedure. Failure to follow the given procedure will cause head gasket failure and possible engine damage.
  2. Clean the threads in the cylinder block.
  3. Apply sealant GM P/N 12346240 (Canadian P/N 10953493), or an equivalent, to the head gasket.
  4. Install the new cylinder head gasket on the cylinder block.
  5. Install the cylinder head on the cylinder block.
    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.
  6. Install the cylinder head bolts and washers into the cylinder head.
    NOTE: Refer to FASTENER NOTICE .
  7. Progressively torque the cylinder head bolts using two steps in the sequence shown.
    1. 1st Pass 

      Tighten the cylinder head bolts to 35 N.m (26 Ib. ft).

    2. Mark the front of the cylinder head bolts with paint.
    3. 2nd Pass 

      After reaching the torque of 35 N.m (26 Ib. ft). Use a J 36660-A  and tighten the cylinder head bolts an additional 180 degrees.

    Fig 2: Identifying Cylinder Head Bolt Tightening Sequence
    G01546416Courtesy of GENERAL MOTORS CORP.
  8. Connect the heater hose to the water hose union.
    Fig 3: Installing Components
    G01546417Courtesy of GENERAL MOTORS CORP.
  9. Connect the upper radiator hose from the water house union.
  10. Install the bolt, gasket and oil control valve filter.
  11. Install the bolt for the oil control valve.
  12. Install the exhaust camshaft. Refer to Camshaft Replacement - Exhaust .
  13. Install the intake camshaft. Refer to Camshaft Replacement - Intake .
  14. Install the PCV valve and grommet. Refer to Positive Crankcase Ventilation (PCV) Valve Replacement .
  15. Install the ECT sensor. Refer to ENGINE COOLANT TEMPERATURE SENSOR .
  16. Install the camshaft position sensor. Refer to CAMSHAFT POSITION SENSOR .
  17. Install the intake manifold. Refer to Intake Manifold Replacement .
  18. Install the intake manifold insulator.
  19. Install 2 bolts to the engine wire harness bracket.
  20. Connect the oil pressure switch and two ground electrical connectors.
  21. Connect the VVT and the VVTL electrical connectors.
  22. Connect the ECT sensor and camshaft position sensor electrical connectors.
  23. Install 2 bolts from the accelerator cable bracket.

    Tighten 

    Tighten the accelerator cable bolts to 13 N.m (10 Ib. ft).

  24. Install the fuel injectors. Refer to FUEL RAILS & FUEL INJECTORS .
  25. Install the throttle body. Refer to THROTTLE BODY ASSEMBLY .
  26. Connect the positive crankcase ventilation (PCV) hoses to the cylinder head cover.
    Fig 4: Connecting Positive Crankcase Ventilation Hoses
    G01546418Courtesy of GENERAL MOTORS CORP.
  27. Install the spark plugs. Refer to SPARK PLUG .
  28. Install the ignition coils. Refer to IGNITION COIL .
  29. Install the exhaust manifold bracket.

    Tighten 

    Tighten the exhaust manifold bracket nut and bolts to 50 N.m (15 Ib. ft).

    Fig 5: Installing Exhaust Manifold Bracket
    G01546419Courtesy of GENERAL MOTORS CORP.
  30. Install the exhaust pipe.
    Fig 6: Installing Exhaust Pipe
    G01546420Courtesy of GENERAL MOTORS CORP.

    Tighten 

    Tighten the exhaust pipe to 43 N.m (32 Ib. ft).

  31. Install the timing chain and sprockets. Refer to Timing Chain and Sprockets Installation .
  32. Install the right engine splash shield. Refer to SPLASH SHIELD REPLACEMENT - ENGINE - RIGHT .
  33. Install the left engine splash shield. Refer to SPLASH SHIELD REPLACEMENT - ENGINE - LEFT .
  34. Install the generator. Refer to GENERATOR .
  35. Install the serpentine drive belt. Refer to Drive Belt Replacement .
  36. Connect the accelerator cable.
  37. Install the air cleaner assembly.
  38. Install the engine cover.
  39. Refill the engine oil.
  40. Refill the cooling system. Refer to DRAINING AND FILLING COOLING SYSTEM .
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