The water temperature is not high. Why is there always little water in the water tank?

Pacific Automotive Network The cooling water in the car cooling system decreases. It is more common that there is leakage at the upper and lower water pipes or the joints of the water pipes of the water tank. The upper and lower water pipes of the cooling system are made of rubber. The working temperature difference of these rubber products is very large. After long-term use, the rubber water pipes gradually age, their elasticity decreases, and they crack, so cooling water leakage occurs. However, a small amount of The loss of cooling water will not affect the work of the cooling system.

1. If the water pipe joints or the pipe itself are leaking, replace the pipe or strengthen the seal;

2. There are cracks in the cylinder body, the cylinder head gasket is loose or damaged, and water leakage occurs;

p>

3. The sealing ring of the oil radiator is damaged or has blisters, causing water to leak;

4. The water tank cover is not tight;

5. The heater water tank is leaking;

6. There is water leakage in the tee; little judgment experience:

1. Check whether the exhaust pipe emits white smoke. If so, boil water. There may be something wrong with the cylinder. Cracks, the cylinder head gasket is not tight or damaged;

2. If there are cracks in the cylinder body: the water tank will return air upward, but the pot will not be turned on;

3. The cylinder head gasket is not tight Or damaged, it will cause insufficient power of the car;

4. With the engine turned on, use a rag or tissue paper or other absorbent objects to check whether there is leakage in each interface;

5. Fill the water tank with water, do not cover the water tank cap, start the engine, refuel to about 2000 rpm, and see if there is air bubbles coming out of the water tank. If there is, it means that the air passage of the cylinder gasket is flushed, and the cylinder head is likely to be deformed;

6. The engine oil heat dissipation sealing ring is damaged or has blisters. You can make a judgment by checking whether the engine oil has water droplet emulsification.

Extended information: Function: When the water temperature of the engine is high, the water pump circulates water repeatedly to reduce the temperature of the engine. (The water tank is composed of hollow copper tubes. High-temperature water enters The water tank is air-cooled and circulated to the engine cylinder wall) to protect the engine. If the water temperature is too low in winter, the water circulation will be stopped at this time to prevent the engine temperature from being too low.

Car water tanks are mainly composed of radiator cores, water pipes, cooling air blades, upper water tanks and lower water tanks. The upper water tank is on the radiator, and the water pipe connects the upper water tank to the water tank below the radiator.

When the hot water flows from top to bottom to the lower water tank, it becomes warm water, and the cooling air blades form holes. Due to the suction of the fan and the relative wind speed when the car is moving forward, a large amount of cold air passes through the air holes. , absorb the heat flowing through the cooling water in the water pipe and then dissipate it into the atmosphere.

The car water tank is not filled with tap water. It is filled with antifreeze and cannot be replaced with tap water. Tap water boils easily, which is unqualified. Antifreeze can cool down and control the temperature, and there are many substances in tap water that can easily produce rust. However, antifreeze is produced very slowly, and it has a certain cleaning effect after replacement.

(Pictures/Text/Photos: Pacific Automotive Network Question and Answer Calling the Beast)