TownAndCountry 2008

Rocker Arms & Shafts

Print

Removal & Installation



3.3L & 3.8L Engines

Specific to:

Chrysler Town & Country 2008-2009

Dodge Grand Caravan 2008-2009

  1. Before servicing the vehicle, refer to the Precautions Section.
  2.  
  3. Remove the cylinder head cover(s). Refer to Valve Covers, removal & installation.
    NOTE
    The rocker arm shaft bolts are captured to the shaft.

  4.  
  5. Loosen the rocker shaft bolts (2), rotating one turn each, until all the valve spring pressure is relieved.
  6.  
  7. Remove the rocker arms and shaft assembly (1).

    Click image to see an enlarged view

    Fig. Remove the rocker arms and shaft assembly-3.3L and 3.8L engines

  8.  

To install:


NOTE
Ensure the longer shaft retaining bolt is installed in the proper location on the rocker shaft.

  1. Position the rocker arm (1) and shaft assemblies on the pedestal mounts.
    NOTE
    Ensure all the pushrods are properly located on the lifter and the rocker arm socket.

  2.  
  3. Align each rocker arm socket with each pushrod end.
    WARNING
    The rocker arm shaft should be tightened down slowly, starting with the center bolts. Allow a 20 minute lifter bleed down time after the installation of the rocker shafts before operating the engine.

  4.  
  5. Slowly and evenly tighten the rocker shaft bolts (2) until the shaft is seated. Tighten the bolts to 17 ft. lbs. (23 Nm).
  6.  
  7. Install the cylinder head cover(s). Refer to Valve Covers, removal & installation.
  8.  

4.0L Engine

Specific to:

Chrysler Town & Country 2008-2009

Dodge Grand Caravan 2008-2009


NOTE
The rocker arm shafts are hollow and are used as lubrication oil passages. The rocker arm and shaft assembly on the RIGHT side of the engine has an oil passage hole from the cylinder head to the 3rd rocker shaft support. The rocker arm shaft assembly on the LEFT side of the engine has an oil passage hole from the cylinder head to the 2nd rocker shaft support.

  1. Before servicing the vehicle, refer to the Precautions Section.
  2.  
  3. Remove the cylinder head cover(s). Refer to Valve Covers, removal & installation.
  4.  
  5. Identify and note the rocker arm assembly components before disassembly.

    Click image to see an enlarged view

    Fig. Identify and note the rocker arm assembly components before disassembly-4.0L engine

  6.  
  7. Remove the rocker arm assembly bolts.
  8.  
  9. Remove the rocker arm assembly.
    NOTE
    To prevent air ingestion into the lash adjusters, avoid turning the rocker arm assembly upside down.


    WARNING
    Do not allow the rocker arm assembly to rest on the lash adjusters, as damage may occur to the lash adjusters and/or plastic retainers.

  10.  

To install:


NOTE
The rocker arm and shaft assembly can be installed either prior to or after (preferred) cylinder head installation.

  1. Rotate the camshaft gears clockwise to where the No. 1 cylinder intake valves just start to open. The camshaft lobes are now in a neutral position (no load to the valve). This will allow the rocker arm shaft assembly to be tightened into position with little or no valve spring load on it.
  2.  
  3. Install the rocker arm and shaft assembly making sure that the identification marks face toward the front of the engine for the left head and toward the rear of the engine for right head.
  4.  
  5. Tighten the rocker arm/shaft assembly bolts in the sequence shown to 275 inch lbs. (31 Nm).
  6.  
  7. Install the cylinder head cover(s). Refer to Valve Covers, removal & installation.

    Click image to see an enlarged view

    Fig. Rocker arm/shaft assembly bolt tightening sequence-4.0L engine

  8.  

 
label.common.footer.alt.autozoneLogo