Durango, 2001-2005

Rocker Arms

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Removal & Installation



3.7L And 4.7L Engines
  1. Before servicing the vehicle, please familiarize yourself with safety procedures.
  2.  
  3. Remove or disconnect the following:

    Negative battery cable
     
    Valve covers
     

  4.  
  5. Rotate the crankshaft so that the piston of the cylinder to be serviced is at Bottom Dead Center (BDC) and both valves are closed.
  6.  
  7. Use special tool 8516 to depress the valve and remove the rocker arm.
  8.  
  9. Repeat for each rocker arm to be serviced.
    NOTE
    Keep valvetrain components in order for reassembly.



    Click image to see an enlarged view

    Fig. Rocker arm service-3.7L and 4.7L engine

    Rocker arm service-3.7L and 4.7L engine
  10.  

To install:

  1. Rotate the crankshaft so that the piston of the cylinder to be serviced is at BDC.
  2.  
  3. Compress the valve spring and install each rocker arm in its original position.
  4.  
  5. Repeat for each rocker arm to be installed.
  6.  
  7. Install or connect the following:

    Cylinder head cover
     
    Negative battery cable
     

  8.  

5.9L Engines
  1. Before servicing the vehicle, please familiarize yourself with safety procedures.
  2.  
  3. Remove or disconnect the following:
    NOTE
    Keep valvetrain components in order for reassembly.



    Negative battery cable
     
    Valve covers
     
    Rocker arms
     

  4.  

To install:

  1. Rotate the crankshaft so that the V8 mark on the crankshaft damper aligns with the timing mark on the front cover. The V8 mark is located 147 degrees AFTER Top Dead Center (TDC).
  2.  
  3. Install the rocker arms in their original positions and tighten the bolts to 21 ft. lbs. (28 Nm).
    CAUTION
    Do not rotate the crankshaft during or immediately after rocker arm installation. Wait 5 minutes for the hydraulic lash adjusters to bleed down.

  4.  
  5. Install or connect the following:

    Valve covers
     
    Negative battery cable

    Click image to see an enlarged view

    Fig. Exploded view of the rocker arm assembly-5.9L engine

    Exploded view of the rocker arm assembly-5.9L engine
     

  6.  

 
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