Removal and installation of a radiator

Removing

Disconnect the wire "masses" from the battery.

Disconnect the wire connectors from the radiator fan and fan thermal switch on the radiator side tank.

If an oil heat exchanger is installed on the right side of the radiator, separate it from the radiator and place it on the engine without disconnecting the hoses from the heat exchanger.

Disconnect the lower radiator hose and drain the cooling system as described earlier. Disconnect the upper radiator hose.

If there is a separate expansion tank, disconnect the expansion tank hose from the radiator (pic. E:2).



Remove the nuts securing the bottom of the radiator on each side to the rubber bushings. Raise the radiator slightly and slide out the clips that secure the top of the radiator to the front body panel.

Remove the radiator from the car along with the fan and its casing.

If necessary, remove the shroud and fan from the radiator.

Starting from January 1981, radiators with a core length of 430 mm and 525 mm are fastened from below with guide pins and rubber pads, and from above - with two brackets fixed with screws.

Radiator installation

Install the radiator in the reverse order. Pay attention to the following:

• A) When replacing a heatsink, transfer the fan thermal switch to the new heatsink by replacing its gasket.
• b) Check the condition of the rubber pads (bushings) lower radiator mount, replace cushions if necessary.
• V) Check the condition of the radiator hoses, replace if necessary. Also, check the condition of the clamps.
• G) Fill the cooling system, connect the fan and thermal switch wires, and "mass" to the battery.
• d) Start the engine and warm it up to operating temperature. Check the system for leaks.

When installing a new type of radiator on an early production car, it is necessary to modify the upper and lower cross members of the front (see fig. E:1). Mark the distances on the bottom crossbar "A" And "IN" (depending on the length of the radiator - see fig. E:1) and drill two holes with a diameter of 11.5 mm closer to the rear edge of the cross member. Install the inserts into the crossbar. Transfer the thermal switch with a new gasket, shroud and radiator fan to the new radiator. Slide the rubber pads over the radiator guide pins and install the radiator into the holes in the lower cross member. Attach the upper radiator mounting brackets in place, drill two 6-5 mm holes in the upper cross member of the front end and secure the upper part of the radiator with bolts, nuts and spring washers.