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Home >> Cadillac >> 2004 >> CTS Base, 3.2 N >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 8 (Engine Mechanical - 5.7L (LS6)) >> Repair Instructions >> Off-Vehicle Repair Instructions >> Cylinder Head Disassemble >> Disassembly Procedure

Disassembly Procedure

WARNING: This page is about a different variant/trim than selected.
    IMPORTANT:
    • Remove the spark plugs from the cylinder head with the components at room temperature.
    • Mark, organize, or sort the cylinder head components for assembly. Return the components to their original location during assembly.
    • Do not remove the cylinder head expansion plugs (226) unless service is required.
    Fig 1: View Of Cylinder Head Components
    GM1272854Courtesy of GENERAL MOTORS CORP.
  1. Remove the spark plugs from the cylinder heads.
    2. Fig 2: Compressing Valve Spring Using
    GM260151Courtesy of GENERAL MOTORS CORP.
  2. Use the J 8062  in order to compress the valve spring.
    3. Fig 3: View Of Cylinder Head Components
    GM1272854Courtesy of GENERAL MOTORS CORP.
  3. Remove the valve stem keys (225).
  4. Remove the valve spring cap (224).
  5. Remove the valve spring (223).
  6. Remove the valves (227 and 228).
  7. Remove the valve stem oil seal (222). Refer to Separating Parts .
    8. Fig 4: View Of Cylinder Head Expansion Plugs
    GM1272856Courtesy of GENERAL MOTORS CORP.
  8. Remove the cylinder head expansion plugs (226), if required.
    9. Fig 5: View Of Coolant Temperature Sensor (Left Cylinder Head)
    GM260086Courtesy of GENERAL MOTORS CORP.
  9. Remove the coolant sensor from the left cylinder head.
    10. Fig 6: View Of Coolant Plug (Right Cylinder Head)
    GM260157Courtesy of GENERAL MOTORS CORP.
  10. Remove the coolant plug from the right cylinder head.
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