I recently bought a 91 supra mariah and I ran into a problem right when i got it on the water. The boat ran fine but after running a couple of minutes it started squealing so I shut it off. I opened up the tube on top of the water pump and saw that the impeller had destroyed itself. Now I have a couple questions. First, is there something that would cause this to happen. and second, does anyone know how to retension the belt on a PCM 351? Thanks
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