What factors can cause the damage of Petrol Car water pump?

The direct consequence of most water pump damage is coolant leakage, which is mostly caused by the aging of the water pump seal ring; in addition, the combination belt of the Petrol Car engine is too tight, which will also cause premature wear of the water pump; the antifreeze is not replaced for a long time, and the internal corrosion will eventually cause the water pump to be damaged; the water pump reaches its service life and is not replaced for a long time.

Check whether the Petrol Car water pump shaft is bent, the degree of wear of the shaft neck, and whether the shaft end thread is damaged. Check whether the blades on the impeller are broken and whether the shaft hole is seriously worn. Check the degree of wear of the water seal and bakelite gasket. If it exceeds the use limit, replace it with a new one. Check the wear of the bearing. The clearance of the bearing can be measured with a gauge. If it exceeds 0.10mm, a new bearing should be replaced. The main reason for the water pump failure is the aging of the water pump seal ring, and the combination belt of the Petrol Car engine is too tight, which leads to premature wear of the water pump. Install and check the water pump. Turn the water pump by hand. If it is astringent and stuck, it cannot be used.
1. Petrol Car water pumps generally have a self-priming function. Self-priming means that when there is air in the water pump's suction pipe, the negative pressure (vacuum) formed when the pump is working is used to raise the water pressure below the suction port under the action of atmospheric pressure, and then discharge it from the water pump's discharge end. Before this process, there is no need to add "water diversion (water for guidance)". A micro water pump with this self-priming ability is called a "micro self-priming water pump". The principle is similar to that of a micro air pump.
2. Petrol Car water pumps combine the advantages of self-priming pumps and chemical pumps. They are synthesized with a variety of corrosion-resistant imported materials and have acid, alkali and corrosion resistance. The self-priming speed is extremely fast (about 1 second), the suction force is strong, the suction range is up to 5 meters, and there is basically no noise. Exquisite workmanship, not only has a self-priming function, but also has a large flow rate (up to 25 liters/minute), high pressure (up to 2.7 kg), stable performance, and easy installation. Therefore, this large-flow water pump is often used in new energy Hongqi Car.