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Home >> Chevrolet >> 2006 >> Cobalt LTZ >> Repair and Diagnosis >> External Pages >> Different car >> Section 708 (Engine Mechanical - 2.4L (LE5)) >> Repair Instructions >> On-Vehicle Repair Instructions >> Cylinder Head Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2007 Pontiac G5 Pursuit, 2007 Pontiac G5, and 2007 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of Cylinder Head And Gasket
    GM412427Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: DO NOT use any sealing material.
  1. Install the cylinder head gasket.
  2. Install the cylinder head.
  3. Install NEW cylinder head bolts.
    4. NOTE: Refer to Fastener Notice .
    Fig 2: Identifying Cylinder Head Bolt Tightening Sequence
    GM412510Courtesy of GENERAL MOTORS CORP.
  4. Install and tighten the cylinder head bolts in the sequence shown.

    Tighten:  Tighten the bolts to 30 N.m (22 lb ft) plus an additional 155 degrees using the J 45059  .

    5. Fig 3: Locating Front Cylinder Head Bolts
    GM412425Courtesy of GENERAL MOTORS CORP.
  5. Install the NEW front cylinder head bolts.

    Tighten:  Tighten the bolts to 35 N.m (26 lb ft).

  6. Install the timing chain. Refer to Timing Chain, Sprockets, and/or Tensioner Replacement .
    7. Fig 4: View Of Radiator Inlet Hose To Engine
    GM1656126Courtesy of GENERAL MOTORS CORP.
  7. Install the radiator inlet hose to the cylinder head.
  8. Position the radiator inlet hose clamp using the J 38185  .
  9. Install the radiator surge tank air bleed hose to the cylinder head.
  10. Position the radiator surge tank air bleed hose clamp.
  11. Install the exhaust manifold. Refer to Exhaust Manifold Replacement (RPO LE5) .
  12. Install the intake manifold. Refer to Intake Manifold Replacement .
  13. Fill the cooling system. Refer to Draining and Filling Cooling System (2.2L (L61), 2.4L (LE5)) or Draining and Filling Cooling System (GE 47716 Fill) .
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