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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 >> Camshaft Position Actuator Replacement - Bank 1 >> Installation Procedure

Installation Procedure

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  1. GM4170757Courtesy of GENERAL MOTORS COMPANY

    It may help to carefully pry the camshaft forward and to move the EN-51333  Timing Chain Retainer backward via the slot to reengage the position actuator to the camshaft. The dowel pin on the camshaft position actuator must be aligned with the slot in the camshaft nose for reassembly.

  2. GM4169468Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Refer to Torque Reaction Against Timing Drive Chain Caution .

    NOTE:

    The intake camshaft position actuator must be installed first to provide enough chain slack to install the exhaust position actuator.

    Use an open ended wrench on the cast hexagonal portion of the intake camshaft to aid in alignment of the timing chain marks.

  3. Apply lubricant to the back of the camshaft position actuator and front of the camshaft bearing cap. Adhesives, Fluids, Lubricants, and Sealers
  4. GM4169709Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Ensure the proper camshaft position actuator is installed in the correct position. The dowel pin on the camshaft position actuator must be aligned with the slot in the camshaft nose for reassembly. Failure to install the proper camshaft position actuator can effect engine performance and set an engine code.

    Install the intake camshaft position actuator (1) first by inserting the actuator between the timing chain and front cover. While pushing the actuator into the tensioned side of the chain, tilt the actuator while engaging the chain, aligning the marks on the chain and place the actuator in the fully seated position.

  5. GM4169624Courtesy of GENERAL MOTORS COMPANY

    Ensure the camshaft position actuator is seated properly on the end of the camshaft.

  6. Install the intake camshaft position actuator retaining bolt, and lightly tighten the bolt to hold the camshaft actuator in place. DO NOT torque at this time.
  7. Install the exhaust camshaft position actuator and retaining bolt following the same steps as the intake side.
  8. Check the marks on both the intake and exhaust camshaft position actuators to ensure that they are aligned with their respective paint marks on the chain.
  9. GM4169468Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Refer to Torque Reaction Against Timing Drive Chain Caution .

    Using an open ended wrench on the cast hexagonal portion of the exhaust camshaft, hold the camshaft in place while loosening the wing nut on the EN-51333-1  Timing Chain Retainer. After fully loosened, let the camshaft rotate back into tension.

  10. Repeat step 9 for the intake camshaft and EN-51333-2  Timing Chain Retainer.
    11. CAUTION:

    Refer to Fastener Caution .

  11. Using an open ended wrench on the cast hexagonal portion of the exhaust camshaft, hold the camshaft in place while tightening both camshaft position actuator retaining bolts.

    Tighten

    1. First Pass: 20 N.m (15 lb-ft)
    2. Final Pass: 45 degrees
  12. Remove the EN-51333  Timing Chain Retainer Set.
  13. GM4167757Courtesy of GENERAL MOTORS COMPANY

    Install the camshaft front cap (1).

  14. GM4167703Courtesy of GENERAL MOTORS COMPANY

    Loosely install the 5 camshaft front cap bolts (1).

  15. Tighten the camshaft front cap bolts in sequence.

    Tighten

    1. First Pass: 6 N.m (53 lb/in)
    2. Final Pass: 45 degrees
  16. Camshaft Cover - Right Side - Install - Camshaft Cover Replacement - Right Side 
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