How long is the general service life of automobile water pump?

Under normal use, the longest service life of automobile water pump can reach 10 years. Generally speaking, it is normal to use it for more than 8 years. The following is the working principle of the automobile water pump and the cause of the water pump damage: the working principle of the automobile water pump: the engine pulley drives the bearing and impeller of the water pump to rotate, and the coolant in the water pump is driven by the impeller to rotate together. Under the action of centrifugal force, it is thrown to the edge of the water pump shell, and a certain pressure is generated at the same time, and then flows out from the water outlet or water pipe. The pressure at the center of the impeller is reduced because the coolant is thrown out. The coolant in the water tank is sucked into the impeller through the water pipe under the pressure difference between the water pump inlet and the impeller center to realize the reciprocating circulation of the coolant. Causes of water pump damage: The direct consequence of most water pump damage is coolant leakage, mainly due to aging of water pump sealing ring. In addition, the engine binding belt is too tight, which will also lead to premature wear of the water pump. If the antifreeze is not replaced for a long time, internal corrosion will eventually cause damage to the water pump.

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