Liberty, Wrangler 2006-2007

Oil Pump

Imprimir

Inspection



The oil pump is replaced as an assembly; there are no subassembly components. In the event the oil pump is not functioning it must be replaced as an assembly.

Removal & Installation



2.4L Engine
  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Disconnect the negative cable from battery.
  4.  
  5. Remove the timing belt.
  6.  
  7. Remove the timing belt rear cover.
  8.  
  9. Remove the oil pan.
  10.  
  11. Remove the crankshaft sprocket using Special Tools 6793 and C-4685-C2, or equivalent.
  12.  
  13. Remove the crankshaft key.
  14.  
  15. Remove the oil pick-up tube.
  16.  
  17. Remove the oil pump and front crankshaft seal.

    Click image to see an enlarged view

    Fig. Crankshaft sprocket removal-2.4L engines



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    Fig. Oil pump-2.4L engines



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    Fig. Oil pump parts-2.4L engines



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    Fig. Checking the oil pump body for flatness-2.4L engines

  18.  

To install:

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Fig. Oil pump sealing-2.4L engines

  1. Make sure all surfaces are clean and free of oil and dirt.
  2.  
  3. Apply Mopar® Gasket Maker, or equivalent, to the oil pump as shown. Install the O-ring into the oil pump body discharge passage.
  4.  
  5. Prime the oil pump with engine oil before installation.
  6.  
  7. Align the oil pump rotor flats with the flats on the crankshaft. Install the oil pump to the block.
    NOTE
    To align, the front crankshaft seal MUST be out of the pump, or damage may result.

  8.  
  9. Install a new front crankshaft seal.
  10.  
  11. Install the crankshaft key.
    NOTE
    The crankshaft sprocket is set to a predetermined depth from the factory for correct timing belt tracking. If removed, use of Special Tool 6792, or equivalent, is required to set the sprocket to original installation depth. An incorrectly installed sprocket will result in timing belt and engine damage.

  12.  
  13. Install the crankshaft sprocket using Special Tool 6792.
  14.  
  15. Install the oil pump pick-up tube.
  16.  
  17. Install the oil pan.
  18.  
  19. Install the timing belt rear cover.
  20.  
  21. Install the timing belt.
  22.  

2.8L Diesel Engine


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Fig. The oil pump location for the 2.8L diesel engine

  1. Disconnect negative battery cable.
  2.  
  3. Remove cooling fan and fan drive viscous clutch assembly.
  4.  
  5. Remove accessory drive belt.
  6.  
  7. Remove cooling fan support.
  8.  
  9. Remove vibration damper.
  10.  
  11. Remove the power steering pump pulley.
  12.  
  13. Remove timing belt outer cover.
    NOTE
    The crankshaft must be rotated to 90 ° ATDC and special tool VM.1089 installed.

  14.  
  15. Remove timing belt.
  16.  
  17. Remove timing belt inner cover.
  18.  
  19. Remove front engine cover.
  20.  
  21. Remove crankshaft sprocket.
  22.  
  23. Remove oil pump retaining bolts and remove pump from engine block.
  24.  

To install:

  1. Lubricate oil pump rotor with engine oil.
  2.  
  3. Install oil pump in bore in engine block.
  4.  
  5. Install oil pump retaining bolts. Torque bolts to 96 inch lbs. (10.8 Nm.).
  6.  
  7. Install crankshaft sprocket. Torque bolts to inch lbs. (10.8 Nm.).
  8.  
  9. Install front engine cover and seal.
  10.  
  11. Install timing belt inner cover.
  12.  
  13. Install the lower timing belt gear and hand tighten fastener.
  14.  
  15. Connect special tool No. 6958 to the lower timing gear using the vibration damper bolts and tighten the timing gear fastener to 203 ft. lbs. (275 Nm).
  16.  
  17. Remove special tool No. 6958.
  18.  
  19. Install timing belt.
  20.  
  21. Install timing belt outer cover.
  22.  
  23. Install vibration dampe