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Home >> Pontiac >> 2006 >> Vibe Base, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 5 (Engine Mechanical - 1.8L (LNK)) >> Repair Instructions >> Timing Chain and Sprockets Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different variant/trim than selected.
    Fig 1: Removing/Installing Serpentine Drive Belt
    GM244267Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: When performing any service procedure that pertains to the camshaft or the camshaft actuator, unlock the camshaft actuator locking pin. Refer to Camshaft Actuator Locking Pin Adjustment .
  1. Remove the accessory drive belt. Refer to Drive Belt Replacement .
  2. Remove the generator from the engine. Refer to Generator Replacement .
    3. CAUTION: Refer to Battery Disconnect Caution in Cautions and Notices.
  3. Disconnect the negative battery cable.
  4. Drain the cooling system. Refer to Draining and Filling Cooling System in Engine Cooling.
  5. Install the engine support fixture. Refer to Engine Support Fixture .
  6. Loosen the A/C receiver pinch clamps.
  7. Lift the A/C receiver in order to access the right side engine mount.
  8. Remove the right side engine mount. Refer to Engine Mount Replacement .
  9. Remove the cylinder head cover. Refer to Cylinder Head Cover Replacement .
    10. Fig 2: Rotating Engine
    GM234138Courtesy of GENERAL MOTORS CORP.
  10. Set the number one piston to the top dead center position.
    11. Fig 3: Point Marks And Camshaft Gears
    GM845249Courtesy of GENERAL MOTORS CORP.
  11. Align the camshaft timing sprockets.
  12. Disconnect the power steering oil pressure switch connector.
  13. Raise and properly support the vehicle. Refer to Lifting and Jacking the Vehicle .
  14. Remove the right side engine splash shield. Refer to Splash Shield Replacement - Engine - Right in Body Front End.
    15. Fig 4: Steering Pump Bolts And Nuts
    GM236875Courtesy of GENERAL MOTORS CORP.
  15. Remove the 2 power steering pump through bolts and the nuts (1).
  16. Remove the power steering pump from the mounting surface.

    Move the pump to the side.

    17. Fig 5: Tightening/Loosening Crankshaft Pulley Retaining Bolt Using J 8614-01
    GM234153Courtesy of GENERAL MOTORS CORP.
  17. Remove the crankshaft pulley retaining bolt using J 8614-01  . See Special Tools .
  18. Remove the crankshaft pulley.
    19. Fig 6: Lower Drive Belt Tensioner Bolt
    GM234378Courtesy of GENERAL MOTORS CORP.
  19. Remove the following components:
    • The crankshaft position sensor bolt (5)
    • The sensor
  20. Lower the vehicle.
  21. Remove the following components from the mounting surface:
    • The drive belt tensioner bolt
    • The drive belt tensioner nut
    • The drive belt tensioner
    22. Fig 7: Timing Chain Tensioner Bolts
    GM234178Courtesy of GENERAL MOTORS CORP.
  22. Remove the timing chain tensioner bolts (1,2).
  23. Remove the timing chain tensioner.
    24. Fig 8: Timing Chain Cover, Bolts And Nuts
    GM234182Courtesy of GENERAL MOTORS CORP.
  24. Remove the following fasteners:
    • The timing chain cover bolts (1-14)
    • The timing chain cover nut (15)
  25. Remove the timing chain cover.
    26. Fig 9: Crankshaft Sensor Reluctor
    GM234359Courtesy of GENERAL MOTORS CORP.
  26. Remove the crankshaft sensor reluctor (1).
    27. Fig 10: Timing Chain Shoe, Shoe Bolts, Chain Dampener And Dampener Bolts
    GM625486Courtesy of GENERAL MOTORS CORP.
  27. Remove the following components:
    • The timing chain dampener bolt (1)
    • The timing chain dampener
    • The timing chain shoe bolts (2)
    • The timing chain shoe
    28. Fig 11: Timing Chain And Crankshaft Sprocket Components
    GM234188Courtesy of GENERAL MOTORS CORP.
  28. Remove the following components:
    • The crankshaft sprocket
    • The timing chain
  29. Remove the four bolts from the front camshaft bearing cap.
  30. Remove the front camshaft bearing cap in order to access the oil passage to the camshaft position (CMP) actuator.
    31. Fig 12: Applying Air Pressure To Camshaft
    GM652440Courtesy of GENERAL MOTORS CORP.
  31. Ensure that the CMP actuator will not turn.
  32. Apply air pressure of approximately 100 kPa (14 psi) to the advance passage of the camshaft.
  33. Turn the CMP actuator to the advanced angle side by hand.
  34. Rotate the actuator back and forth through the advanced positions to ensure 21 degrees of movement.
  35. Remove the air pressure and turn the CMP actuator back to the minimum advanced angle position to lock the actuator.
  36. Replace the CMP actuator if the following conditions exist:
    • CMP actuator does not lock with air pressure removed.
    • CMP actuator does not unlock with air pressure applied.
    • CMP actuator does not rotate smoothly through the advanced positions.
    • CMP actuator does not rotate completely through the advance positions.
  37. Install the front camshaft bearing cap.
    38. NOTE: Refer to Fastener Notice in Cautions and Notices.
  38. Install the front camshaft bearing cap bolts.

    Tighten:  Tighten the bolts to 19 N.m (14 lb ft).

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