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1990 964 fan belt failure detector device


Vehicle Information: Year: 1990; Body Type: Targa; Engine (type, size, modifications): 3.6; Total Mileage: 90000;

I recently had the inner fan belt break. After replacing it, I noticed that it was worn quite a bit where the wheel on the fan belt break detector had been riding on it. An inspection of the remenants of the belt indicated that the wheel was or could have been a large contributing factor to the failure of the belt.The device was injured when the belt came off and I was going to replace it until this inspection and am having some second thoughts. Is this normal to have the wheel wear the belt? Do porsche folks take them off or leave them off because of this?

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