Mazda Trucks 1972-1986 Repair Guide

Radiator

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See Figures 1 through 7

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Fig. Fig. 1: To remove the radiator, drain the coolant by opening the petcock valve and unplug any electrical connections, ...



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Fig. Fig. 2: ... loosen both upper and lower radiator hose clamps ...



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Fig. Fig. 3: ... and remove the hoses, ...



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Fig. Fig. 4: ... then unbolt the fan shroud from the radiator ...



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Fig. Fig. 5: ... and push back against the engine (some models may require you to remove the fan shroud). Also disconnect the coolant overflow hose (next to the radiator cap) ...



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Fig. Fig. 6: ... unbolt the radiator from the radiator support ...



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Fig. Fig. 7: ... and lift the radiator out of the vehicle

REMOVAL & INSTALLATION



  1. Drain the cooling system.
  2.  
  3. If necessary, remove the fan shroud.
  4.  


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

  1. If necessary, remove the fan. Don't lay the fan, if equipped with a fan clutch, on its side. Fluid will be lost and the fan clutch will have to be replaced.
  2.  
  3. Disconnect the upper and lower radiator hoses.
  4.  
  5. Disconnect the coolant reservoir hose.
  6.  
  7. On trucks with automatic transmission, disconnect the cooler lines.
  8.  
  9. Unbolt and remove the radiator.
  10.  

To install:
  1. Install the radiator against the supports and tighten the mounting bolts.
  2.  
  3. Install the hoses on the radiator. Tighten the clamps.
  4.  
  5. Install the fan.
  6.  
  7. If equipped, install the fan shroud.
  8.  
  9. Refill the cooling system with the specified amount and type of coolant. Run the engine and check for leaks.
  10.  

 
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