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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1667 (Engine Mechanical - 4.8L, 5.3L, 6.0L, 6.2L - Repair Instructions - On Vehicle) >> Cylinder Head Replacement - Left Side >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2010 GMC Sierra, 2010 Chevrolet Silverado, and 2010 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Checking Cylinder Head Bolt Holes
    GM832969Courtesy of GENERAL MOTORS CORP.
    WARNING: Wear safety glasses in order to avoid eye damage.
    CAUTION: 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.
    NOTE: If installing a new cylinder head it is necessary to install a new engine coolant air bleed plug into the rear coolant passage of the cylinder head. Refer to Cylinder Head Assemble .
    NOTE:
    • 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).
  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. Spray cleaner GM P/N 12346139, P/N 12377981 (Canadian P/N 10953463), or equivalent into the hole.
  3. Clean the cylinder head bolt holes with compressed air.
  4. Check the cylinder head locating pins for proper installation (a) 8.3 mm (0.327 in).
    5. Fig 2: View Of Cylinder Head Gasket & Locating Pins
    GM1658153Courtesy of GENERAL MOTORS CORP.
    NOTE: When properly installed, with FRONT on the left side, the tab on the cylinder head gasket should be located left of center.
  5. Install the NEW cylinder head gasket (217) onto the locating pins.
    6. Fig 3: View Of Cylinder Head & Bolts
    GM1658150Courtesy of GENERAL MOTORS CORP.
  6. Install the cylinder head (218) onto the locating pins.
  7. Install the NEW cylinder head bolts (220, 221).
    8. Fig 4: Identifying Cylinder Head Bolt Tightening Sequence
    GM832971Courtesy of GENERAL MOTORS CORP.
    CAUTION: Refer to Fastener Caution .
  8. Tighten the cylinder head bolts.
    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  .
    3. Tighten the M11 cylinder head bolts (1-10) a final pass to 70 degrees using J 45059  .
    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.
    9. Fig 5: View Of Engine Ground Strap & Bolt
    GM1699550Courtesy of GENERAL MOTORS CORP.
  9. Position the ground strap to the rear of the left cylinder head.
  10. Install the engine ground strap bolt to the rear of the left cylinder head and tighten the bolt to 16 N.m (12 lb ft).
  11. Install the pushrods. Refer to Valve Rocker Arm and Push Rod Replacement .
  12. Install the left exhaust manifold. Refer to Exhaust Manifold Replacement - Left Side (V8) or Exhaust Manifold Replacement - Left Side (6.6L) or Exhaust Manifold Replacement - Left Side (V6) .
  13. Install the coolant air bleed pipe. Refer to Engine Coolant Air Bleed Pipe Replacement (with AFM) or Engine Coolant Air Bleed Pipe Replacement (without AFM) .
  14. Install the intake manifold. Refer to Intake Manifold Replacement (Without AFM)  or Intake Manifold Replacement (With AFM) .
  15. Install the generator bracket. Refer to Generator Replacement (V6) or Generator Replacement (V8) or Generator Replacement (6.6L) .
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