Chrysler Full-Size Vans 1967-1988 Repair Guide

Water Pump

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REMOVAL & INSTALLATION



170, 198 and 225 Engines

See Figures 1 through 8



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Fig. Fig. 1: To replace the water pump on L6 engines, remove the cooling fan attaching bolts ...



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Fig. Fig. 2: ... and remove the fan, spacer and water pump pulley



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Fig. Fig. 3: If equipped, remove the air pump mounting bolts and remove the belt



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Fig. Fig. 4: Position the air pump out of the way



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Fig. Fig. 5: Loosen the clamps on the hoses connected to the water pump



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Fig. Fig. 6: Unbolt the air pump mounting bracket from the water pump ...



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Fig. Fig. 7: ... and remove the bracket. Remove the remaining water pump bolts



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Fig. Fig. 8: Disconnect the hoses from the water pump as you pull it off of the engine

This job can sometimes be done without removing the radiator on models without air conditioning, if there is enough room to get at the water pump bolts.

  1. Remove the radiator.
  2.  
  3. Remove the tension from the drive belts.
  4.  
  5. Remove the fan, spacer, pulley, and bolts as an assembly.
  6.  
  7. If equipped with an air pump, remove the pump brackets with the hoses attached and tie it out of the way.
  8.  
  9. Disconnect the heater hose and all other hoses from the pump.
  10.  
  11. Remove the pump from the block.
  12.  
  13. Installation is the reverse of removal. Use a new gasket coated with sealer. Torque the bolts to 30 ft. lbs. Fill the cooling system and adjust the tension of the drive belts.
  14.  

238, 318 and 360 Engines

See Figures 9 through 15



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Fig. Fig. 9: To remove the water pump on V8 engines, remove the four cooling fan bolts ...



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Fig. Fig. 10: ... then remove the fan, spacer, and pulley from the water pump



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Fig. Fig. 11: Loosen the clamps and disconnect the hoses from the water pump



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Fig. Fig. 12: Loosen and remove the power steering pump bracket, and bolt



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Fig. Fig. 13: Remove any alternator brackets that are retained by the water pump bolts. Remove the water pump



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Fig. Fig. 14: Clean the water pump mounting are well to prevent leaks when you install the pump



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Fig. Fig. 15: If installing the old pump, remove any traces of the old gasket with a scraper

  1. Remove the radiator.
  2.  
  3. Loosen all accessories that are belt driven and remove all the drive belts.
  4.  
  5. On engines without air conditioning, remove the alternator bracket attaching bolts and tie the alternator and bracket out of the way.
  6.  
  7. On engines with air conditioning, remove the idler pulley assembly, alternator, and adjusting bracket.
  8.  
  9. Remove the fan blade, spacer (or fluid unit), pulley, and bolts as an assembly.
  10.  

To prevent silicone fluid from draining into the drive bearing and ruining the lubricant, do not place the thermostatic fan drive unit with the shaft pointing downward.

  1. Disconnect all hoses from the water pump.
  2.  
  3. Remove the air conditioning compressor front mounting bolts.
  4.  
  5. Remove the water pump-to-compressor front bracket bolts and the bracket.
  6.  

Do not disconnect any refrigerant lines from the compressor.

  1. Remove the water pump.
  2.  
  3. Installation is the reverse of removal. Use a new gasket coated with sealer. Torque the bolts to 30 ft. lbs. Fill the cooling system and adjust the tension of the drive belts.
  4.  

400 and 440 Engines
  1. Disconnect the negative battery cable and drain the cooling system.
  2.  


CAUTION
When draining the coolant, keep in mind that cats and dogs are attracted by the ethylene glycol antifreeze, and are quite likely to drink any that is left in an uncovered container or in puddles on the ground. This will prove fatal in sufficient quantity. Always drain the coolant into a sealable container. Coolant should be reused unless it is contaminated or several years old.

  1. Loosen all of the drive belts.
  2.  
  3. Remove the lower crankshaft pulley.
  4.  
  5. Remove the fan shroud screws and set the shroud back out of the way.
  6.  
  7. Remove the fluid fan drive bolts and set the fluid fan and the fan assembly aside.
  8.  
  9. Remove the water pump and the gasket.
  10.  
  11. Installation is the reverse of removal. Use a new gasket coated with sealer. Torque the bolts to 30 ft. lbs. Fill the cooling system and adjust the tension of the drive belts.
  12.  

Diesel Engine
  1. Drain the cooling system and remove the heater hoses and the bypass hose.
  2.  


CAUTION
When draining the coolant, keep in mind that cats and dogs are attracted by the ethylene glycol antifreeze, and are quite likely to drink any that is left in an uncovered container or in puddles on the ground. This will prove fatal in sufficient quantity. Always drain the coolant into a sealable container. Coolant should be reused unless it is contaminated or several years old.

  1. Loosen the alternator mounting bolts and remove the belt.
  2.  
  3. Remove the cooling fan, the spacer and the drive pulley.
  4.  
  5. Remove the water pump mounting bolts and remove the pump.
  6.  
  7. Installation is the reverse of removal. Use a new gasket coated with sealer. Torque the bolts to 30 ft. lbs. Fill the cooling system and adjust the tension of the drive belts.
  8.  

 
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