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Home >> Isuzu >> 2007 >> i-290 LS, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 23 (Engine Mechanical - 4.6L - 1 Of 4) >> On-Vehicle Repair Instructions (1 Of 2) >> Cylinder Head Replacement - Left Side >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2007 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Identifying Cylinder Head Locating Pins
    GM522731Courtesy of GENERAL MOTORS CORP.
  1. Make sure all the cylinder head locating pins are securely installed in the cylinder block deck face.
    2. IMPORTANT: Failure to remove all the old thread sealant material from the cylinder block could cause false torque readings.
  2. Make sure all old thread sealant material is removed from the cylinder head bolt holes in the cylinder block.
    3. Fig 2: View of Left Cylinder Head Gasket
    GM522790Courtesy of GENERAL MOTORS CORP.
  3. Install a NEW cylinder head gasket using the locating pins for retention.
    4. Fig 3: View Of Cylinder Head With Alignment Dowels - Left
    GM522794Courtesy of GENERAL MOTORS CORP.
  4. Align the cylinder head with the locating pins.
  5. Place the cylinder head in position on the cylinder block.
    6. Fig 4: View of M6 External Drive Bolts
    GM522798Courtesy of GENERAL MOTORS CORP.
  6. Install 10 NEW M11 cylinder head bolts until snug.
  7. Install the 3 M6 cylinder head bolts until snug.
    8. Fig 5: Identifying Left Cylinder Head Bolts
    GM522802Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Fastener Notice .
  8. Tighten the 10 M11 cylinder head bolts.

    Tighten: 

    1. Tighten the bolts (1-10) a first pass in the sequence shown to 30 N.m (22 lb ft).
    2. Tighten the bolts a second pass in the sequence shown an additional 70 degrees using the J 45059  . See Special Tools .
    3. Tighten the bolts a third pass in the sequence shown an additional 60 degrees using the J 45059  . See Special Tools .
    4. Tighten the bolts a final pass in the sequence shown an additional 45 degrees (total 175 degrees) using the J 45059  . See Special Tools .

  9. Tighten the 3 M6 bolts cylinder head.

    Tighten:  Tighten the bolts to 12 N.m (106 lb in).

  10. Install the left secondary camshaft drive chain. Refer to Secondary Camshaft Drive Chain Replacement - Left Side .
  11. Install the engine front cover. Refer to Engine Front Cover Replacement .
  12. Install the camshaft cover. Refer to Camshaft Cover Replacement - Left Side .
  13. Install the intake manifold. Refer to Intake Manifold Replacement .
  14. Install the water crossover. Refer to Engine Coolant Crossover Pipe Replacement .
  15. Install the generator. Refer to Generator Replacement .
  16. Install the engine mount strut bracket. Refer to Engine Mount Strut Bracket Replacement - Right Side .
  17. Install the left exhaust manifold. Refer to Exhaust Manifold Replacement - Left Side .
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