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Home >> Chevrolet >> 2006 >> Cobalt LTZ >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 3 (Engine Mechanical - 2.0L) >> Repair Instructions >> Off-Vehicle Repair Instructions >> Cylinder Head Installation >> Installation Procedure

Installation Procedure

WARNING: This page is about a different variant/trim than selected.
    Fig 1: Identifying Cylinder Head
    GM1381557Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Do not use any sealing material.
  1. Install the cylinder head gasket to the block.
  2. Install the cylinder head.
    3. IMPORTANT: Always use new cylinder head bolts.
  3. Lightly apply clean engine oil to the threads and the bottom side of the flange of the head bolt and allow the oil to drain before installing.
    4. Fig 2: Identifying Cylinder Head Bolt Tightening Sequence
    GM412510Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
  4. Install and tighten the cylinder head bolts in sequence.

    Tighten: 

    • Tighten bolts 30 N.m (22 lb ft).
    • Then turn all the bolts 155 degrees in sequence. Use the J 45059  . See Special Tools .

    5. Fig 3: Installing Front Cylinder Head Bolts
    GM1381559Courtesy of GENERAL MOTORS CORP.
  5. Install the front cylinder head bolts.

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

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