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Installation Procedure

WARNING: This page is about a different car, the 2007 Hummer H2. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION: Wear safety glasses in order to avoid eye damage.
NOTE: Clean all dirt, debris, and coolant from the engine block cylinder head bolt holes. Failure to remove all foreign material may result in damaged threads, improperly tightened fasteners or damage to components.
IMPORTANT:
  • Do not reuse the cylinder head bolts. Install NEW cylinder head bolts during assembly.
  • Do not use any type of sealant on the cylinder head gasket (unless specified).
  • The cylinder head gaskets must be installed in the proper direction and position.
    Fig 1: Identifying Cylinder Head Locating Pins Installation Position
    GM63235Courtesy of GENERAL MOTORS CORP.
  1. Clean the engine block cylinder head bolt holes (if required).

    Thread repair tool J 42385-107, found in J 42385-200  may be used to clean the threads of old threadlocking material. See Special Tools .

  2. Use spray cleaner to clean out the hole. Refer to Sealers, Adhesives, and Lubricants  for the correct part number.
  3. Clean the cylinder head bolt holes with compressed air.
  4. Check the cylinder head locating pins for proper installation, location (a) 8.3 mm (0.327 in).
    5. Fig 2: View Of Cylinder Head Gasket Displacement Markings
    GM1332950Courtesy of GENERAL MOTORS CORP.
  5. When properly installed, with FRONT on the left side, the tab on the cylinder head gasket should be located left of center or closer to the front of the engine.
    6. Fig 3: View Of Left Cylinder Head Gasket & Locator Pins
    GM63169Courtesy of GENERAL MOTORS CORP.
  6. Install the NEW cylinder head gasket.
    Fig 4: View Of Cylinder Head Gasket
    GM832962Courtesy of MAZDA MOTORS CORP.
  7. Install the cylinder head.
    Fig 5: View Of Left Cylinder Head
    GM1424500Courtesy of GENERAL MOTORS CORP.
  8. Install the NEW cylinder head bolts.
    9. Fig 6: Cylinder Head Bolt Tightening Sequence
    GM260150Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Fastener Notice .
  9. Tighten the cylinder head bolts.

    Tighten: 

    1. Tighten the M11 cylinder head bolts (1-10) a first pass in sequence to 30 N.m (22 lb ft).
    2. Tighten the M11 cylinder head bolts (1-10) a second pass in sequence to 90 degrees using J 45059  . See Special Tools .
    3. Tighten the M11 cylinder head bolts (1-10) a final pass in sequence to 70 degrees using J 45059  . See Special Tools .
    4. Tighten the M8 cylinder head bolts (11-15) to 30 N.m (22 lb ft). Begin with the center bolt (11) and alternating side-to-side, work outward tightening all of the bolts.

  10. Install the pushrods. Refer to Valve Rocker Arm and Push Rod Replacement .
  11. Install the left exhaust manifold. Refer to Exhaust Manifold Replacement - Left Side .
  12. Install the coolant air bleed pipe. Refer to Coolant Air Bleed Pipe Assembly Replacement .
  13. Install the intake manifold. Refer to Intake Manifold Replacement .
  14. Install the generator bracket. Refer to Generator Replacement .
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