снимаешь мотор.
находишь плотную деревяху шлифованную.
вал на деревяху и по тихоньку поворачивая постукиваешь молоточком.
это если у тебя винт на самый кончик крепица.
а сли ближе к самому мотору а биение небольшое - то и шут с ним. =)
А чтобы определить куда стучать, можно фломастер или гелиевую ручку прислонить к валу, когда он крутится - покрасится выпершее место (тут неоднократно писали про этот способ).
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