Chevrolet Nova/ChevyII 1962-1979

Radiator

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A standard pressure cooling system is used on all models. The radiator cap is designed to maintain a cooling system pressure of about 13 or 15 pounds per square inch (psi) above atmospheric. The water pump requires no attention other than making certain the air vent at the top of the housing and the drain holes in the bottom do not become clogged.

1973 and later models are equipped with a coolant recovery system. The plastic reservoir prevents loss of coolant if the engine overheats by allowing for coolant expansion.

REMOVAL & INSTALLATION





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Fig. Fig. 1 Exploded view of the radiator and shroud mounting-1968-79 6 and 8-cylinder engines



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Fig. Fig. 2 Before removing the radiator, drain the coolant into a suitable container



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Fig. Fig. 3 Unfasten the upper radiator hose clamp screw ...



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Fig. Fig. 4 ... then disconnect the upper hose from the radiator



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Fig. Fig. 5 Use pliers to unfasten the overflow hose clip ...



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Fig. Fig. 6 ... then disconnect the overflow hose from the radiator



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Fig. Fig. 7 Use a flare-nut wrench to loosen the automatic transmission oil cooler lines



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Fig. Fig. 8 Disconnect the automatic transmission oil cooler lines, then plug them to prevent contamination



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Fig. Fig. 9 Unfasten the radiator shroud mounting bolts ...



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Fig. Fig. 10 ... then remove the shroud from the vehicle



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Fig. Fig. 11 Lift the radiator up and out of the vehicle

  1. Drain the radiator.
  2.  
  3. Disconnect the hoses and oil cooler lines.
  4.  
  5. Remove the radiator upper panel and shroud (if so equipped).
  6.  
  7. Remove the radiator attaching bolts and lift the radiator from the car.
  8.  

To install:

  1. Slide the radiator into position.
  2.  
  3. Install the attaching bolts, shroud, and upper panel.
  4.  
  5. Install the hoses and close the drain.
  6.  
  7. Fill the cooling system and run the engine until the operating temperature has been reached. Again fill the cooling system and check for leaks.
  8.  

 
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