my u-turn’s belt also makes an annoying motor sound when it’s rotating. idk how to fix it, and i dont want to do any permanent damage so i’ve left it as is, but yea it can get annoying with quiet moments/records
Be careful not to stretch your belt too much. Shake your belt in a ziplock bag with talc or cornstarch, shake excess. But sounds like there could be a motor noise/speed issue as well as Lee mentioned.