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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 - Right Side >> Removal Procedure

Removal 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: Locating Engine Harness Electrical Connectors
    GM1663209Courtesy of GENERAL MOTORS CORP.
  1. Remove the right exhaust manifold. Refer to Exhaust Manifold Replacement - Right Side .
  2. Remove the water crossover. Refer to Engine Coolant Crossover Pipe Replacement .
  3. Remove the intake manifold. Refer to Intake Manifold Replacement .
  4. Remove the camshaft cover. Refer to Camshaft Cover Replacement - Right Side .
  5. Remove the engine front cover. Refer to Engine Front Cover Replacement .
  6. Remove the right secondary camshaft drive chain. Refer to Secondary Camshaft Drive Chain Replacement - Right Side .
  7. Disconnect the engine harness electrical connector (6) from the engine coolant temperature (ECT) sensor.
  8. Remove the engine harness ground terminal nut (4).
  9. Remove the engine harness ground terminal (5).
    10. Fig 2: Identifying Front Exhaust Manifold Pipe
    GM1663211Courtesy of GENERAL MOTORS CORP.
  10. Remove the stud attaching the exhaust manifold front pipe to the cylinder head.
  11. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
    12. Fig 3: Identifying Right Engine Mount Bracket
    GM1660851Courtesy of GENERAL MOTORS CORP.
  12. Remove the stud attaching the right engine mount bracket to the cylinder head.
  13. Loosen the bolts attaching the engine mount bracket to the transaxle.
    14. Fig 4: Identifying Engine Lift Bracket
    GM1660883Courtesy of GENERAL MOTORS CORP.
  14. Remove the bolt attaching the transaxle brace to the transaxle.
  15. Lower the vehicle.
  16. Remove the nuts attaching the transaxle brace to the lift bracket studs.
  17. Remove the transaxle brace.
    18. Fig 5: Identifying Engine Lift Bracket Studs
    GM1660885Courtesy of GENERAL MOTORS CORP.
  18. Remove the rear lift bracket studs.
  19. Remove the rear lift bracket.
    20. Fig 6: Identifying M6 External Drive Bolts
    GM522833Courtesy of GENERAL MOTORS CORP.
  20. Remove the 3 M6 cylinder head bolts.
    21. IMPORTANT: DO NOT reuse the M11 cylinder head bolts.
  21. Remove and discard the 10 M11 cylinder head bolts.
    22. Fig 7: View Of Cylinder Head With Alignment Dowels - Right
    GM522830Courtesy of GENERAL MOTORS CORP.
  22. Remove the right cylinder head. Make sure that no locating pins are stuck in the cylinder head.
    23. IMPORTANT: You must clean the thread sealant material from the cylinder head bolt holes in the cylinder block. Failure to do so could cause false torque readings during reassembly.
  23. After removing the cylinder head, remove any remaining bolt thread sealant material from the threaded cylinder block holes.
    24. Fig 8: View of Right Cylinder Head Gasket
    GM522824Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: DO NOT reuse the cylinder head gasket.
  24. Remove and discard the right cylinder head gasket.
  25. Remove all remaining gasket material from the cylinder head and cylinder block using the J 28410  . See Special Tools .
  26. Place the cylinder head on a clean, flat surface with the combustion chambers face-up in order to prevent damage to the deck face.
  27. Clean and inspect the cylinder head. Refer to Cylinder Head Cleaning and Inspection .
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