Ram 1500, 2500, 3500, 2WD and 4WD, 2001-2005

Valve Lash (Clearance) Adjustment

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All gasoline engines covered in this section use hydraulic lifters. No maintenance or periodic adjustment is required.

  1. Before servicing the vehicle, refer to the Precautions Section.
  2.  
  3. Remove or disconnect the following:

    Negative battery cables
     
    Valve cover
     
    Fuel pump gear access cover
     

  4.  
  5. Position the gear as shown and measure the clearance of the indicated valves. No adjustment is necessary if the lash falls within the following specifications:
    1. Intake-0.006-0.015 inch (0.152-0.381mm).
    2.  
    3. Exhaust-0.015-0.030 inch (0.381-0.762mm).

      Click image to see an enlarged view

      Fig. Adjust the specified valves when the mark on the pump gear is in either of the 2 positions-diesel engines

      Adjust the specified valves when the mark on the pump gear is in either of the 2 positions-diesel engines

      Click image to see an enlarged view

      Fig. Use a feeler gauge to measure the valve lash-diesel engine

      Use a feeler gauge to measure the valve lash-diesel engine
    4.  

  6.  
  7. Install or connect the following:

    Fuel pump access cover
     
    Valve cover
     
    Negative battery cables
     

  8.  

All engines covered in this section use hydraulic lifters. No maintenance or periodic adjustment is required.

 
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