用于大众奥迪奔驰宝马沃尔沃福特马自达汽车发电机皮带轮的拆卸，这些车发电机皮带轮内部有单向离合器，是用来节油和延长皮带寿命的设计，由于高温缺油，所以容易处于半卡死状态，这时候会在怠速抖动的时候出现嘎嘎的异响。是要更换此轮子，没有我们的工具是拆不下来的..

For the W/V Audi Mercedes-Benz BMW Volvo Ford Mazda car generator pulley disassembly, these car generators pulley internal one-way clutch, is used to save fuel and extend the belt life of the design, due to high temperature lack of oil, so easy to be half-stuck State, this time will be in the idle jitter when the quack of abnormal sound. Is to replace this wheel, can't removed without this tools..