I have a clacking noise when starting from a stop or coming to a stop. It sounds like the toothed drive belt is chattering against the CVT cover. In the photo you can see some of the sound insulation has been worn away from contact with the belt, and the belt is in contact with the plastic cover. I cut that portion of the insulation away, but the noise persists. Is there some adjustment needed to tighten up the belt a bit to prevent this?

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