Nissan Z - ZX 1970-1988 Repair Guide

Radiator

Print

REMOVAL & INSTALLATION



1970-83 Models

See Figures 1 and 2

  1. Drain the cooling system by opening the draincock at the bottom of the radiator.
  2.  


CAUTION
When draining 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 the coolant into a sealable container. Coolant should be reused unless it is contaminated or several years old.

Removing the pressure cap will speed the draining of the cooling system.

  1. If equipped with an undercover, remove it.
  2.  



Click image to see an enlarged view

Fig. Fig. 1: Example of early Datsun/Nissan cooling system



Click image to see an enlarged view

Fig. Fig. 2: Radiator and related components-1970-83 models

  1. Disconnect the upper and lower hoses from the radiator, then the water reservoir hose from the radiator.
  2.  
  3. If equipped with air conditioning, disconnect the pipe clip screw (turbocharger equipped).
  4.  
  5. Remove the lower radiator shroud and remove it from underneath.
  6.  
  7. If equipped with an automatic transmission, disconnect and plug the oil cooler lines at the radiator.
  8.  
  9. Remove the radiator mounting bolts, the upper shroud and the radiator by pulling it upward and out of the engine compartment.
  10.  
  11. To install, reverse the removal procedures. Refill both the radiator and the transmission to the specified levels. Operate the engine and continue filling radiator (to the proper level) until all of the air bubbles are removed.
  12.  

1984-88 Models

See Figures 3, 4, 5, 6 and 7

  1. Remove the front bumper assembly.
  2.  
  3. Drain the cooling system by opening the draincock at the bottom of the radiator.
  4.  



Click image to see an enlarged view

Fig. Fig. 3: Cooling system components-1984-88 models


CAUTION
When draining 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 the coolant into a sealable container. Coolant should be reused unless it is contaminated or several years old.

Removing the pressure cap will speed the draining of the cooling system.



Click image to see an enlarged view

Fig. Fig. 4: Loosen the draincock ...



Click image to see an enlarged view

Fig. Fig. 5: ... and allow the coolant to drain into a suitable container



Click image to see an enlarged view

Fig. Fig. 6: If equipped with a lower splash shield, remove to access the radiator and hoses



Click image to see an enlarged view

Fig. Fig. 7: Remove all attached hoses, including the transmission cooling hoses if equipped with an automatic transmission

  1. Disconnect the upper and lower hoses at the radiator, then the water reservoir hose from the radiator.
  2.  
  3. If equipped with an automatic transmission, disconnect and plug the oil cooler lines at the radiator.
  4.  
  5. Remove the radiator mounting bolts and the radiator by lowering it from the vehicle.
  6.  
  7. To install the radiator, reverse the removal procedures. Refill both the radiator and the transmission to the specified levels. Operate the engine and continue filling radiator to the proper level until all of the air bubbles are removed.
  8.  

 
label.common.footer.alt.autozoneLogo