LEMON Manuals: Even more car manuals for everyone
Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1537 (Engine Mechanical (Repair Instructions 1 Of 3) - 5.7L) >> Repair Instructions (On-Vehicle & Off-Vehicle - Part 1 >> On-Vehicle Repair Instructions >> Cylinder Head Replacement - Left >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2004 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of 100 mm & 155 mm Cylinder Head Bolts
    GM1457374Courtesy of GENERAL MOTORS CORP.
    CAUTION: Refer to Safety Glasses Caution .
    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 use the cylinder head bolts again. Install NEW cylinder head bolts during assembly.
    • Do not use any type sealant on the cylinder head gasket, unless specified.
    • The cylinder head gaskets must be installed in the proper direction and position.
  1. Clean the engine block cylinder head bolt holes, if required.

    Thread repair tool J 42385-107 may be used to clean the threads of old threadlocking material.

  2. Spray cleaner GM P/N 12346139, GM P/N 12377981 (Canadian P/N 10953463) or equivalent into the hole.
  3. Clean the cylinder head bolt holes with compressed air.
    4. Fig 2: View Of 100 mm & 155 mm Cylinder Head Bolts
    GM1457374Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: First design engine blocks have different drill and tap depths using both medium length 100 mm (3.94 in) and long 155 mm (6.1 in) M11 cylinder head bolts. Second design engine blocks use only the medium length 100 mm (3.94 in) bolt with a common drill and tap depth.
  4. Measure the depth of the cylinder head bolt holes (1-10) and select the correct length bolts as required.
  5. Check the cylinder head locating pins for proper location.
    6. Fig 3: View Of Cylinder Head Gasket Displacement Markings
    GM1332950Courtesy of GENERAL MOTORS CORP.
  6. Inspect the displacement markings (1) on the gasket, for proper usage.
    7. Fig 4: View Of Right Cylinder Head Gasket And Alignment Pins
    GM63170Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: When properly installed, the tab on the right cylinder head gasket will be located right of center or closer to the front of the engine.
  7. Install the NEW cylinder head gasket onto the locating pins.
    8. Fig 5: View Of Cylinder Head & Bolts
    GM260149Courtesy of GENERAL MOTORS CORP.
  8. Install the cylinder head onto the locating pins and the gasket.
  9. Install the NEW cylinder head bolts.
    10. Fig 6: Cylinder Head Bolt Tightening Sequence
    GM260150Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Fastener Notice .
  10. Tighten the first design cylinder head bolts.

    Tighten: 

    1. Tighten the first design M11 cylinder head bolts a first pass in sequence to 30 N.m (22 lb ft).
    2. Tighten the first design M11 cylinder head bolts a second pass in sequence to 90 degrees using the J 45059  .
    3. Tighten the first design M11 cylinder head bolts (1, 2, 3, 4, 5, 6, 7, 8) to 90 degrees and the M11 cylinder head bolts (9 and 10) to 50 degrees a final pass in sequence to using the J 45059  .
    4. Tighten the M8 cylinder head bolts (11, 12, 13, 14, 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.

  11. Tighten the second design cylinder head bolts.

    Tighten: 

    1. Tighten the second design M11 cylinder head bolts (1-10) a first pass in sequence to 30 N.m (22 lb ft).
    2. Tighten the second design M11 cylinder head bolts (1-10) a second pass in sequence to 90 degrees using the J 45059  .
    3. Tighten the second design M11 cylinder head bolts (1-10) a final pass in sequence to 70 degrees using the J 45059  .
    4. Tighten the M8 cylinder head bolts (11, 12, 13, 14, 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.

  12. Install the wiring harness to the clip at the rear of the cylinder head.
    13. Fig 7: MAP Sensor Vacuum Hose & MAP Sensor Electrical Connector
    GM651870Courtesy of GENERAL MOTORS CORP.
  13. Position the engine wire harness ground strap (6) against the cylinder head.
  14. Install the engine wiring harness ground bolt (5) to the rear of the left cylinder head.

    Tighten:  Tighten the engine wire harness ground bolt to 32 N.m (24 lb ft).

  15. Install the exhaust manifold. Refer to Exhaust Manifold Replacement - Left in Engine Exhaust.
  16. Install the generator bracket. Refer to Generator Bracket Replacement in Engine Electrical.
  17. Install the engine coolant air bleed pipe. Refer to Coolant Air Bleed Pipe Assembly Replacement in Engine Cooling.
  18. Install the valve rocker arms and pushrods. Refer to Valve Rocker Arm and Push Rod Replacement .
scientia non olet · About LEMON Manuals