Chrysler Full-Size Trucks 1997-2000 Repair Guide

Timing Chain Cover and Seal (Gasoline Engines)

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REMOVAL & INSTALLATION



2.5L Engine
  1. Disconnect the negative battery cable.
  2.  
  3. Remove the accessory belt.
  4.  
  5. Remove any accessory bracket attached to the timing case cover.
  6.  
  7. Remove the fan and hub assembly and fan shroud.
  8.  
  9. Remove the A/C compressor (if fitted) and alternator bracket from the head and place them to one side.
  10.  
  11. Remove the vibration damper.
  12.  
  13. Remove the oil pan-to-timing case cover bolts and timing case-to-cylinder block bolts.
  14.  
  15. Remove the timing case cover and gasket.
  16.  
  17. Pry out the oil seal if replacement is required.
  18.  

To install:

  1. The open end of the seal should face the engine.
  2.  
  3. A special alignment tool (6139) is available to ease assembly.
  4.  
  5. Tighten 1 / 4 in. cover-to-block bolts to 60 inch lbs. (7 Nm). Tighten 5 / 16 in. front cover-to-block bolts 192 inch lbs. (22 Nm). Tighten the oil pan-to-cover bolts to 84 inch lbs. (9.5 Nm).
  6.  
  7. The remainder of the procedure is the reverse of removal.
  8.  



Click image to see an enlarged view

Fig. Timing case cover components-2.5L engine

3.9L, 5.2L, 5.9L, 8.0L Gasoline Engines
  1. Disconnect the negative battery cable.
  2.  
  3. Drain and recycle the engine coolant.
  4.  
  5. Remove the accessory belt.
  6.  
  7. Remove the fan and shroud.
  8.  
  9. Remove the alternator. Unbolt the A/C compressor and place it to one side if required for access to the water pump.
  10.  
  11. Remove the air pump and bracket (8.0L engine)
  12.  
  13. Remove the water pump.
  14.  
  15. Remove the power steering pump.
  16.  
  17. Remove the crankshaft pulley.
  18.  
  19. Remove the vibration damper.
  20.  
  21. If replacing the seal only: use a suitable tool to pry the seal from out of the timing cover. Use caution as to NOT damage the seal surface of the timing cover. Proceed to the installation steps.
  22.  



Click image to see an enlarged view

Fig. You can use a seal puller, such as this one from Lisle®, to remove the front seal from the timing cover

  1. Loosen the oil pan bolts, and then remove the two front oil pan bolts on each side of the crankshaft that retain the cover.
  2.  
  3. Remove the bolts that retain the timing cover to the engine block.
  4.  
  5. Remove the cover, using caution to avoid damaging the oil pan gasket.
  6.  
  7. Remove the seal from the timing cover using a suitable tool. Take care not to damage the seal surface of the timing cover.
  8.  

To install:

  1. The oil seal can be installed before or after installation of the cover. Use a suitable seal installation tool or large socket to press seal into place. Spring side goes towards the engine.
  2.  
  3. Using a new timing cover gasket, place the timing cover on the engine block.
  4.  
  5. Install the timing cover bolts to the engine block. Tighten to 30 ft. lbs. (41 Nm) on V-6 and V-8 engines, 35 ft. lbs. (47 Nm) on V-10 engines.
  6.  
  7. Install the front two oil pan bolts; tighten to 215 inch lbs. (24 Nm).
  8.  
  9. the reset of the procedure is the reverse of removal.
  10.  



Click image to see an enlarged view

Fig. Make sure the seal area of the cover is clean and smooth before installing a new seal



Click image to see an enlarged view

Fig. A large socket can be used if the proper tool is unavailable; however, this is not the recommended method

4.7L Engine
  1. Disconnect the negative battery cable.
  2.  
  3. Drain and recycle the engine coolant.
  4.  
  5. Remove the belt-driven fan and radiator shroud.
  6.  
  7. Disconnect both heater hoses at the timing cover.
  8.  
  9. Disconnect the lower radiator hose at the engine.
  10.  
  11. Remove the crankshaft damper.
  12.  
  13. Remove the accessory belt tensioner assembly.
  14.  
  15. Remove the alternator and A/C compressor.
  16.  
  17. Remove the timing cover and gasket.
  18.  

To install:

  1. Reverse the removal procedure.
  2.  
  3. Tighten the cover hardware, in the order shown, to 40 ft. lbs. (54 Nm).
  4.  
  5. Tighten the accessory drive belt tensioner to 40 ft. lbs. (54 Nm).
  6.  



Click image to see an enlarged view

Fig. Timing chain cover tightening sequence-4.7L engine

 
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