How to empty the heating water tank after 18 Buick GL8

If you exhaust, you can unplug one of the heating pipes. The hose in the thermos bottle was unplugged. After the water comes out, install it again. Operate while the car is cooling. It is dangerous to prevent burns when the car is hot. Before the throttle valve, the exhaust gas can be discharged from the bifurcated water pipe behind the cooling fan; There is a black nut on the pipe of the warm air tank entering and leaving the cockpit, or there is a metal screw on the engine block under the hood.

Circulation principle of automobile warm air water tank

When the engine is working, it will generate a lot of heat. In order to dissipate heat, the engine drives the water pump to work through the belt, so that the engine coolant circulates and cools down. When the temperature rises to a certain extent and the coolant in the engine is not enough to cool down, the thermostat opens and the water tank participates in the circulation. The water pump injects the coolant in the water tank into the engine, cools it and returns it to the water tank (radiator) for cooling, and then circulates it.

For heating in the car, a tee is added in the coolant circulation channel, so that the coolant absorbed by the engine temperature flows through the warm air mechanism, then cooled by the warm air fan, and then the heat is transferred to the car. Therefore, the warm air is actually the same principle as the engine water tank plus fan, except that one is blown into the car and the other is blown out.