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Home >> Cadillac >> 2006 >> STS Base, 3.6 7, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 4 (Engine Mechanical - 4.6L (LH2) - 1 Of 5) >> On-Vehicle Repair Instructions (Part 1) >> Secondary Camshaft Drive Chain Replacement - Right Side >> Installation Procedure

Installation Procedure

WARNING: This page is about a different variant/trim than selected.
    Fig 1: Identifying Secondary Timing Chain Black Links
    GM1276767Courtesy of GENERAL MOTORS CORP.
  1. The secondary timing chain has 3 black links that aid in timing the camshaft position actuators to the intermediate sprocket.
  2. The black link (2) is aligned with the bank 1 exhaust actuator timing mark. The black link (3) is aligned with the bank 1 intake actuator timing mark.
  3. The black link (1) is aligned with the intermediate sprocket.
    4. Fig 2: Aligning Sprocket LB Timing Mark To Timing Chain Black Link
    GM1272585Courtesy of GENERAL MOTORS CORP.
  4. The intermediate sprocket right bank timing mark is labeled right bank (RB) as shown.
  5. Assemble the secondary timing chain to the intermediate sprocket aligning the sprocket RB timing mark to the timing chain black link.
    6. Fig 3: Identifying Camshaft Sprockets & Related Components
    GM1276769Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Torque Reaction Against Timing Drive Chain Notice .
  6. Align the timing mark (5) of the RB intake camshaft position actuator with the timing chain black link (8) and install the actuator on the camshaft with the actuator timing mark perpendicular (90 degrees) to the cylinder head deck surface near the top of its rotation.
  7. Loosely install the oil control valve (2) to secure the intake actuator.
    8. Fig 4: Holding Camshaft In Position
    GM1275677Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Fastener Notice .
  8. Use an open-end wrench on the hex cast into the camshaft in order to prevent the camshaft from rotating when tightening the oil control valve.

    Tighten:  Tighten the oil control valve to 120 N.m (89 lb ft).

    9. Fig 5: Identifying Camshaft Sprockets & Related Components
    GM1276769Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Torque Reaction Against Timing Drive Chain Notice .
  9. Align the timing mark (3) of the RB exhaust camshaft position actuator with the timing chain black link and install the actuator on the camshaft with the actuator timing mark perpendicular (90 degrees) to the cylinder head deck surface near the top of its rotation.
  10. Loosely install the oil control valve (1) to secure the exhaust actuator.
    11. Fig 6: Holding Camshaft In Position
    GM1275677Courtesy of GENERAL MOTORS CORP.
  11. Use an open-end wrench on the hex cast into the camshaft in order to prevent the camshaft from rotating when tightening the oil control valve.

    Tighten:  Tighten the oil control valve to 120 N.m (89 lb ft).

    12. Fig 7: View Of Right Secondary Timing Chain Tensioner & Bolts
    GM1276761Courtesy of GENERAL MOTORS CORP.
  12. Install the right secondary timing chain tensioner. Refer to Secondary Camshaft Drive Chain Tensioner Replacement - Right Side .
  13. Remove the EN 46328  .
  14. Install the right camshaft position actuator housing. Refer to Camshaft Position Actuator Housing Replacement - Right Side .
  15. Install the oil pump. Refer to Oil Pump Replacement .
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