We are a Belt Tensioner Pulley Factory, how to solve the abnormal "squeaking" sound of the pulley? In the process of repairing the car, there may be many abnormal noises in the car engine, such as abnormal noise caused by air intake leakage (air-oil separator), the abnormal sound of belt aging and looseness, the abnormal sound of belt pulley, engine knocking, valve sound, and some auxiliary parts. Wait, many of them cannot be judged by the car owner themselves, and must be repaired by an experienced car mechanic, but the car owner can still judge the simple aging of the belt and the abnormal noise of the pulley.

　　The replacement cycle of the alternator belt varies according to different models. For details, you can refer to the vehicle maintenance manual. The owner does not know much about the alternator belt, because it is not involved in the normal use of the car, and the main maintenance item in the 4S shop maintenance is the oil filter. .

　　When repairing the car, I also encountered the failure of the generator belt breaking while driving. The biggest problem is the aging of the generator belt, and the load driven by the generator belt is more important, such as generators, air-conditioning compressors, Power steering pump, water pump, idler gear, etc. Because generator belts are generally made of rubber materials, they will show some characteristic phenomena after aging.

　　For example, the belt will have a "squeaking" abnormal sound as it ages (varies with the speed change), or the belt pulley will make a "squeaking" abnormal sound when it is running. If there is such an abnormal sound at the front of the engine, the owner It's time to check the alternator belt. Note: When the belt is aged, the adhesion of the belt decreases, resulting in abnormal noise due to slippage, which is also related to the surrounding ambient temperature. When the temperature is low, the rubber is harder and is prone to abnormal noise. DIY can sprinkle water on the belt to increase the friction, this method is used to check whether it is a belt problem. In addition to the abnormal sound of the belt, the tensioner and idler of the belt will also have abnormal noises, which is why the idler or tensioner (depending on the model) is replaced when the belt is replaced.

　　So when there is a "squeak" "moan" in the front of the car, the car owner pays attention, otherwise the belt will be broken in the middle of the road.

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