My Febi idler pulley just froze up and fell off. It has only been on the car for 10K miles, and less than a year.

There may be a quality issue with this product. I am switching brands.

The belt looks OK, but the bearing froze.

I change the belt tensioner arm and the water pump at the same time and they are OK.

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1991 350SD (updated rods)
Biodiesel B100 when I can find it.
Dino when really cold outside