How many kilometers does JAC Ruifeng m5 pump need to be replaced?

There is no fixed replacement cycle. Generally, there is no fixed replacement cycle for automobile water pumps. Only when the car is fully maintained for 60 thousand kilometers does it need to check the water pump, and it needs to be replaced if it is broken. If the vehicle engine is driven by timing belt and the water pump is driven by timing belt, it may be considered to replace the timing belt every time. Avoid the expensive disassembly cost caused by the damage of the water pump, and reduce the risk of the water pump damaging the engine timing mechanism. If the vehicle water pump is driven by the auxiliary belt or separately, the running state of the water pump can be checked regularly and replaced according to the actual situation. Generally, the engine drives the pump bearing and impeller to rotate through the pulley, and the cooling liquid in the pump rotates together under the drive of the impeller, and is thrown to the edge of the pump shell under the action of centrifugal force, and at the same time generates a certain pressure, and then flows out from the water outlet channel or water pipe. At the center of the impeller, because the cooling liquid is thrown out, the pressure is reduced, and the cooling liquid in the water tank is sucked into the impeller through the water pipe under the pressure difference between the inlet of the water pump and the center of the impeller, thus realizing the reciprocating circulation of the cooling liquid.