Subaru ff-1/1300/1400/1600/1800/Brat 1970-1984 Repair Guide

Radiator

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REMOVAL & INSTALLATION



ff-1 and 1300G Models

A main radiator, sub-radiator, and reservoir tank are utilized. They can be removed individually or as an assembly. To remove as an assembly, proceed as follows:

  1. Remove the grille.
  2.  
  3. Remove the drain plug, and drain the coolant.
  4.  


CAUTION
When draining the coolant, keep in mind that cats and dogs are attracted by 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. Disconnect the radiator hoses from the top of the main and sub-radiators, and from the bottom of the main radiator (water pump side).
  2.  
  3. Disconnect the heater control cable, by removing the circlip which retains the inner cable, and the nut which retains the sheath to the bracket. Loosen the clamp which retains the heater duct to the blower casing, and remove the blower casing mounting bolts.
  4.  


WARNING
Do not remove the bolt between the radiators.

To remove only the main radiator, proceed as follows:

  1. Remove the grille.
  2.  
  3. Remove the drain plug and drain the coolant.
  4.  
  5. Disconnect all hoses from the main radiator.
  6.  
  7. Remove the center and right hand radiator mounting bolts, and the 4 screws which retain the radiator bracket.
  8.  
  9. Remove the main radiator and bracket, leaving the sub-radiator suspended on the left hand mounting bolt and the blower motor casing.
  10.  

To remove only the sub-radiator:

  1. Remove the grille.
  2.  
  3. Remove the drain plug and drain the coolant.
  4.  
  5. Disconnect the radiator shroud from the blower casing.
  6.  
  7. Remove the center and left hand radiator retaining bolts, and remove the sub-radiator.
  8.  
  9. Install in the reverse order of removal.
  10.  

Except ff-1 and 1300G Models
  1. On 1982-84 models, remove the cover from underneath, on the right side of the vehicle. You may want to connect a hose to the drain plug to carry coolant away on these models. Drain the cooling system by removing the drain plug in the bottom of the radiator. After loosening the drain plug, remove the radiator cap, which will allow the coolant to drain faster.
  2.  
  3. Loosen the hose clamps and remove the inlet (upper) and outlet (lower) hoses from the radiator. Disconnect inlet and outlet oil cooler lines (automatic transaxle).
  4.  
  5. Remove the two radiator mounting bolts.
  6.  



Click image to see an enlarged view

Fig. Fig. 1 Unfasten the radiator retaining bolts



Click image to see an enlarged view

Fig. Fig. 2 Disconnect the thermoswitch wiring

  1. Before removing the radiator from the vehicle, disconnect the wiring harness of the following items:

    Thermostat
     
    Thermoswitch wiring
     
    Oil pressure switch wiring
     
    Fan motor wiring
     
    Secondary terminal to the distributor
     

  2.  
  3. Remove the fan and motor assembly from the radiator by removing the 4 bolts which hold the assembly to the radiator.
  4.  
  5. Install the radiator in the reverse order of removal.
  6.  



Click image to see an enlarged view

Fig. Fig. 3 Remove the radiator from the vehicle

 
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