A damaged tensioner pulley bearing will affect the normal use of the car

The abnormal noise of the tensioner is generally buzzing or squeaking. There is a bearing inside the tensioner. If there is abnormal noise, it indicates that the tensioner pulley bearing is damaged, and the engine may have timing skipping, ignition and gas distribution time disorder, which affects the normal use of the car.

The tensioner pulley bearing is broken, and the car will make a harsh metal noise when accelerating. The function of the tensioner is to guide and tighten it on the timing belt or timing chain of the engine, so that it is always in the best tightening state. The tensioner pulley bearing is a component of the tensioner, which is in direct contact with the timing belt/chain, and is used to maintain the belt/chain with proper tension during the transmission process to avoid belt slippage, tooth skipping or loosening. The falling off phenomenon can reduce the wear of sprocket and chain.

The function of the tensioner is to adjust the tightness of the timing belt, but its life is not very long. There are many cars where the belt is not broken and the tensioner breaks first. Generally, the timing belt will be replaced when replacing it. Under normal circumstances, it is recommended to replace it every 3-5 years or about 80,000-100,000 kilometers. Please refer to the vehicle maintenance manual for the specific replacement time.

If the tensioner pulley bearing is broken, if it is not replaced in time, it may cause the engine to shake, difficult to ignite, and it may not hit the car in severe cases. It may also deform the valve top, cause damage to the engine components, and may even lock up and cause the belt to fail to drive normally. , Causing the car to break down.

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