Montana, Silhouette, Venture 2000-2005

Timing Chain Cover, Chain, Sprockets, & Seal

Print

Removal & Installation



  1. Before servicing the vehicle, refer to the Precautions Section.
  2.  
  3. Drain the engine oil.
  4.  
  5. Drain the coolant.
  6.  
  7. Remove or disconnect the following:

    Negative battery cable
     
    Crankshaft balancer
     
    Drive belt tensioner
     
    Power steering pump and lines. Do not disconnect the lines from the pump
     
    Thermostat bypass pipe from the front cover
     
    Radiator outlet hose from the water pump
     
    Water pump
     
    Upper and lower Crankshaft Position (CKP) sensor wire harness bracket from the front cover
     
    CKP sensor from the front cover
     
    Front cover and gasket

    Click image to see an enlarged view

    Fig. Crankshaft timing mark locations

     

  8.  
  9. Rotate the crankshaft until the timing marks are aligned in the following locations:

    Camshaft alignment pin (1)
     
    Timing chain damper (2) to the crankshaft sprocket (3)
     
    Crankshaft key (4)
     
    Timing chain damper (5) to the camshaft sprocket locator hole (6)
     

  10.  
  11. Remove or disconnect the following:

    Camshaft sprocket bolt
     
    Timing chain, timing chain sprockets and damper
     
    Front oil seal

    Click image to see an enlarged view

    Fig. Exploded view of the timing chain assembly

     

  12.  

To install:

  1. Install or connect the following:

    New front oil seal by making certain the seal is fully seated
     
    Timing chain damper. Torque the bolts to 15 ft. lbs. (21 Nm).
     
    Timing chain to the camshaft sprocket
     
    Crankshaft sprocket
     
    Timing chain to the crankshaft sprocket by making certain the chain is fully seated
     

  2.  
  3. Align the crankshaft timing mark to the bottom mark on the damper.
  4.  
  5. Align the timing mark on the camshaft gear center line of the locator hole with the timing mark on the top of the damper.
  6.  
  7. Align the dowel in the camshaft with the dowel hole in the camshaft sprocket.
  8.  
  9. Install or connect the following:

    Camshaft sprocket bolt. Torque the bolt to 103 ft. lbs. (140 Nm).
     

  10.  
  11. Apply a 0.20 inch (5mm) bead of sealer to both sides of the lower tabs of the engine front cover gasket.

    Front cover. Torque the 5 small bolts to 15 ft. lbs. (21 Nm), the 3 large bolts to 41 ft. lbs. (55 Nm) and the 2 remaining bolts to 35 ft. lbs. (47 Nm).
     
    Water pump to the front cover. Torque the bolts to 89 inch lbs. (10 Nm).
     
    Water pump pulley. Torque the bolt to 18 ft. lbs. (25 Nm).
     
    CKP sensor to the front cover
     
    Upper/lower CKP wire harness brackets to the front cover
     
    Radiator outlet hose to the water pump
     
    Thermostat bypass pipe to the front cover
     
    Power steering pump and lines
     
    Drive belt tensioner
     
    Crankshaft balancer
     
    Negative battery cable
     

  12.  
  13. Fill the engine with oil.
  14.  
  15. Fill the coolant system.
  16.  
  17. Start the vehicle and verify that the engine is running properly.
  18.  

 
label.common.footer.alt.autozoneLogo