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Timing Chain and Tensioner Removal: Removal

WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View of Timing Chain and Tensioner
    GM2146284Courtesy of GENERAL MOTORS CORP.
  1. Remove the upper timing chain guide bolts.
  2. Remove the upper timing chain guide (1).
    3. Fig 2: Identifying Timing Chain Tensioner Plunger
    GM2148463Courtesy of GENERAL MOTORS CORP.
    NOTE: The timing chain tensioner must be removed to unload chain tension before the timing chain is removed.
  3. Remove the timing chain tensioner plunger (1).
    4. Fig 3: Identifying Locking Tool
    GM2128100Courtesy of GENERAL MOTORS CORP.
  4. Rotate intake camshaft actuators to install EN-48953:  locking tool (1).
    5. NOTE: Marking the chain and actuators is crucial to procedures operation. The camshaft actuator and timing chain must have oil removed from the surface prior to marking both actuators and chain.
  5. Install EN-48953:  locking tool onto the cylinder head and tighten to 10 N.m (89 lb in). If the intake camshaft actuator is moving independent of cam and is not locked, rotate the intake camshaft counter-clockwise and the tool will hold the actuator, locking the actuator to the cam.
  6. Loosen the intake camshaft actuator bolt.
  7. Loosen the exhaust camshaft actuator bolt.
  8. Remove EN-48953:  locking tool.
    9. Fig 4: Identifying Exhaust Camshaft Actuator
    GM2146286Courtesy of GENERAL MOTORS CORP.
  9. Locate hex on the exhaust camshaft and hold with a wrench (2).
  10. Remove the exhaust camshaft bolt and the exhaust camshaft actuator (1). Discard the bolt.
    11. Fig 5: Identifying Adjustable Timing Chain Guide
    GM2146287Courtesy of GENERAL MOTORS CORP.
  11. Remove the adjustable timing chain guide bolt.
  12. Remove the adjustable timing chain guide (1).
    13. Fig 6: Identifying Fixed Timing Chain Guide Bolt Plug
    GM2148468Courtesy of GENERAL MOTORS CORP.
  13. Remove the plug (1) to gain access to the fixed timing chain guide bolt.
    14. Fig 7: Identifying Fixed Timing Chain Guide
    GM2146289Courtesy of GENERAL MOTORS CORP.
  14. Remove the fixed timing chain guide bolts.
  15. Remove the fixed timing chain guide (1).
    16. Fig 8: Identifying Intake Camshaft Actuator Bolt, Actuator, and Timing Chain
    GM2146290Courtesy of GENERAL MOTORS CORP.
  16. Locate hex on the intake camshaft and hold with a wrench.
  17. Remove the intake camshaft actuator bolt, the intake camshaft actuator (1) and the timing chain (2) through the top of the cylinder head. Discard the bolt.
    18. Fig 9: Identifying Exhaust Camshaft Actuator & Intake Camshaft Locking Notches
    GM2128101Courtesy of GENERAL MOTORS CORP.
    NOTE: The number 3 exhaust valves are open.
    NOTE: Note the position and direction of the camshafts before removal. Mark the cylinder head in relation to the locking notches before component removal.
  18. Mark the cylinder head where the exhaust camshaft actuator locking notch (1) and intake camshaft locking notch (2) are lined up with the cylinder head.
    19. Fig 10: View Of Crankshaft Sprocket
    GM2074531Courtesy of GENERAL MOTORS CORP.
  19. Remove the crankshaft sprocket (2) and friction washers (1), if equipped.
    20. Fig 11: View of Timing Chain Oil Nozzle
    GM2146291Courtesy of GENERAL MOTORS CORP.
  20. Remove the timing chain oil nozzle bolt.
  21. Remove the timing chain oil nozzle (1).
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