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Home >> Cadillac >> 2021 >> CT5 Sport, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Engine Mechanical - 3.0L (LGY)) >> Repair Instructions >> Cylinder Head Replacement - Right Side >> Installation Procedure

Installation Procedure

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  1. GM4154079Courtesy of GENERAL MOTORS COMPANY

    Ensure the cylinder head locating pins (5) are securely mounted in the cylinder block deck face.

  2. Install a NEW left cylinder head gasket (4) using the deck face locating pins for retention.
  3. Cylinder Head (3) - Install
  4. GM4044978Courtesy of GENERAL MOTORS COMPANY
    WARNING:

    The noise cancelling foam component MUST be replaced if it has been exposed to engine fluids. Failure to replace the noise cancelling foam component that has been exposed to engine fluids may result in an engine fire resulting in catastrophic engine damage, and possible injury or death.

    Inspect the fuel injection fuel rail noise shield (1) and replace if it has been exposed to engine fluids.

  5. CAUTION:

    Refer to Fastener Caution .

    CAUTION:

    This vehicle is equipped with torque-to-yield or single use fasteners. Install a NEW torque-to-yield or single use fastener when installing this component. Failure to replace the torque-to-yield or single use fastener could cause damage to the vehicle or component.

  6. Cylinder Head Bolt M11 x 178 (4) - Install NEW and tighten in sequence [ 8x ]
    1. First Pass: 60 N.m (44 lb-ft)
    2. Final Pass: 185 degrees
  7. Cylinder Head Bolt M8 x 80.8 (5) - Install NEW and tighten in sequence
    1. First Pass: 15 N.m (11 lb-ft)
    2. Final Pass: 75 degrees
  8. GM3952335Courtesy of GENERAL MOTORS COMPANY

    Valve Lifter-Right Side (1, 2) - Install [ 12x ] - Valve Lifter Replacement - Right Side 

  9. GM3951847Courtesy of GENERAL MOTORS COMPANY

    Camshaft Carrier-Right Side (2) - Install - Camshaft Carrier Resealing - Right Side 

  10. Camshaft-Right Side - Install - Camshaft Replacement - Right Side 
  11. Position wire harness and connect as necessary.
  12. GM4523101Courtesy of GENERAL MOTORS COMPANY

    Install the ground wire (2) and ground wire bolt (1) at the right front of the cylinder head. Ground Repair

  13. Compressor Air Intake Turbocharger-Right Side - Install - Compressor Air Intake Turbocharger Replacement - Right Side 
  14. GM4144593Courtesy of GENERAL MOTORS COMPANY

    Fuel Injection Fuel Rail Noise Shield (1) - Install - Fuel Injection Fuel Rail Noise Shield Replacement (Upper) , or Fuel Injection Fuel Rail Noise Shield Replacement (Lower)

  15. Camshaft Timing Chain-Right Side - Install - Camshaft Timing Chain Assembly Replacement - Right Side 
  16. Engine - Install - Engine Replacement (AWD) , or Engine Replacement (RWD)