Chrysler Full-Size Trucks 1989-1996 Repair Guide

Cylinder Head Cover

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This cover may be referred to by various names. While official Mopar terminology has dubbed it Cylinder Head Cover, it may also be known as Rocker Arm Cover, Valve Cover, or (on OHC engines) Cam Cover. For the purposes of this guide, it will be called Cylinder Head Cover.

REMOVAL & INSTALLATION

See Figures 1, 2, 3 and 4

  1. Disconnect all wires, cable and hoses crossing the cylinder head cover. On the diesel engine, remove the air crossover tube.
  2.  


WARNING
The V10 engine uses specially plated fasteners. Do not replace these with another type.

Click image to see an enlarged view

Fig. Fig. 1: Upper: Remove whatever is in the way of cylinder head removal (V10 cover shown, others similar). Lower: V10 engine bolt/stud arrangement


  1. On V10 engines, remove the upper intake manifold to remove the right side cylinder head cover.
  2.  
  3. Remove the cylinder head cover bolts.
  4.  



Click image to see an enlarged view

Fig. Fig. 2: The steel-backed silicone cylinder head cover head gaskets are reusable-V10 gasket shown, V6 and V8 models are similar

  1. Using a soft mallet, tap loose the cylinder head cover.
  2.  



Click image to see an enlarged view

Fig. Fig. 3: Unbolt the cylinder head cover using a ratchet and extension


WARNING
Never pry the cover loose. You may damage the cover or head surface!



Click image to see an enlarged view

Fig. Fig. 4: Remove the cover from the cylinder head and set it in a clean, safe location

  1. Lift the cover off the engine.
  2.  
  3. Thoroughly clean all gasket material from the mating surfaces of the head and cover. On models which use RTV silicone sealant instead of a gasket, make sure that all material is removed.
  4.  

To install:
  1. On models using a conventional gasket, place a new gasket on the head, coated with sealer. Coat the cylinder head cover mating surface with sealer and install the cover.
  2.  
  3. On later models using a steel-backed silicon gasket, install the original gasket unless it has somehow been damaged.
  4.  
  5. Tighten the bolts to the following:

    V6 and V8 models with a conventional gasket: 4 ft. lbs. (4.5 Nm).
     
    2.5L engine: 105 inch lbs. (12 Nm).
     
    On models with RTV silicone material, tighten the nuts to 80 inch lbs. (9 Nm); the studs to 10 ft. lbs. (13 Nm).
     
    V10 engine: 144 inch lbs. (16 Nm).
     
    V6 and V8 engines with steel-backed silicon gasket: 95 inch lbs. (11 Nm).
     
    Diesel engine: tighten the cylinder head cover bolts and air crossover tube bolts to 18 ft. lbs. (24 Nm).
     

  6.  

 
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