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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 >> Valve Stem Oil Seal and Valve Spring Replacement - Left Side >> Removal Procedure

Removal Procedure

WARNING: This page is about a different variant/trim than selected.
  1. Valve Rocker Arm-Left Side - Remove - Valve Rocker Arm Replacement - Left Side 
  2. Camshaft Carrier-Left Side - Remove - Camshaft Carrier Resealing - Left Side 
  3. Remove the starter. Starter Replacement (LSY) , or Starter Replacement (LGY)
  4. GM4117498Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    If the EN-46106  tool is not installed, the crankshaft may rotate. If the crankshaft rotates, disassembly and reassembly of the entire camshaft timing system may be required.

    Install the EN-46106  Flywheel Holding Tool (1) to prevent crankshaft rotation.

  5. Remove the spark plug from the applicable cylinder. Gas Engine Ignition Spark Plug Replacement
  6. Install the EN-39313  Spark Plug Port Adapter to the applicable cylinder.
  7. Connect the EN-39313  Spark Plug Port Adapter to a compressed air source.
  8. GM4166262Courtesy of GENERAL MOTORS COMPANY

    Install the EN-46335-A  On-Vehicle Valve Spring Compressor (1) above the applicable cylinder as shown.

  9. Tighten the EN-46335-A  On-Vehicle Valve Spring Compressor bolt (2).
  10. Remove the valve keeper (3).
  11. Loosen the EN-46335-A  On-Vehicle Valve Spring Compressor bolt and remove the compressor.
  12. GM4166266Courtesy of GENERAL MOTORS COMPANY

    Valve Spring Retainer (1) - Remove

  13. Valve Spring (2) - Remove
  14. GM4166267Courtesy of GENERAL MOTORS COMPANY

    Use the EN-46116  Valve Stem Seal Remover/Installer (1) in order to remove the valve stem seal (2).

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