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Should the Rubber on the Crankshaft Pulley Be Replaced if It's Aged?

1 Answers

VonOlive

07/30/25 10:07am

If there are abnormalities, it should be replaced. Even if the belt wear is not severe, the engine belt idler pulley should also be replaced. Correct mistakes promptly: Some engines use flat-shaped fan belts. When installing them on the pulley, check the fit between the belt and the pulley. The flat-shaped belt should fit well with the pulley; otherwise, the belt's service life will not be long. Some models use V-belts, and if any errors occur, they should be corrected promptly. Risks of not replacing: If not replaced in time, driving may sometimes cause excessive idler pulley wobbling, accelerating belt wear. In some cases, the idler pulley may seize and grind the belt down completely, or the pulley itself may detach, causing the belt to disengage. This results in the loss of power to the engine's generator, water pump, power steering pump, air conditioning pump, and other components that rely on engine power, leading to vehicle breakdown and inability to operate normally.

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