Warning: Antifreeze is a corrosive and poisonous liquid, so be careful not to let it drip onto painted surfaces of your car or onto your skin. If this happens, rinse the antifreeze off immediately with plenty of clean water.
1. The cooling system should be drained, flushed and refilled periodically to replenish the coolant and prevent rust and corrosion. After servicing the cooling system, all hoses and the radiator cap should be checked and replaced if necessary.
Drain
2. Apply the handbrake and block the wheels of the car.
3. When the engine is completely cool, remove the radiator cap. On a four-cylinder engine, remove the drain plug from the thermostat housing (see figure).
26.3. Four-cylinder engine drainage related parts - the plug should be removed to bleed air before servicing.
1. Cylinder head assembly.
2. Drain plug.
3. Thermostat housing.
4. Engine compartment.
5. Front of the car.
4. Place a large container under the radiator to catch the coolant. Attach a 3/8-inch hose to the drain plug to direct the coolant into the container, then open the drain plug (you may need pliers to turn the plug, see illustration).
5. After the coolant stops flowing out of the radiator, move the container under the engine compartment plug. Remove the plug and drain the liquid from the engine compartment.
6. While the coolant is draining, check the condition of the radiator and heater hoses and clamps (see section 15).
7. Replace any damaged clamps and hoses (see chapter 3, which provides a detailed description of the replacement procedure).
Flushing
8. After the system has completely drained, flush the radiator with clean water until clean water flows from it. The flow of water will remove sediment from the radiator, but will not be able to remove rust and scale from the surface of the engine and radiator pipe.
9. These deposits can be removed by chemical action of the cleaner. Follow the procedure according to the manufacturer's recommendations. If the radiator is heavily rusted, damaged or leaking, it should be removed (chapter 3) and repair.
10. Remove the overflow hose from the expansion tank. Drain it and rinse it with clean water, then reconnect the hose.
Filling
11. Close and tighten the radiator drain hose. Install and tighten the engine compartment drain plug. On a four-cylinder engine, install the drain plug.
12. Set the heater temperature control to the maximum position.
13. Slowly add fresh coolant (a 50/50 mixture of water and antifreeze) until the radiator is full. Fill the reservoir with coolant to the lower mark.
14. Remove the radiator cap and start the engine, let it run in a well-ventilated area until the thermostat opens (coolant will flow through the radiator and the upper radiator hose will heat up).
15. Turn off the engine and let it cool. Add coolant until the level reaches the top of the radiator filler neck.
16. Squeeze the air out of the upper radiator hose, add more coolant if necessary. Install the radiator cap.
17. Start the engine, let it warm up to normal operating temperature, then check for possible leaks.
(This publication was borrowed from the website: «FORDBOOK.ru»)