Originally Posted by againstallodds
its very loud if that helps.
If you take the belt off and spin the pulley, does it still make noise? This is a good way to test if its in fact your sc thats faulty, but i'm guessing you already know it is. My guess it's most likely due to overheat. Possibly no oil getting to it, or was low. If you're confident enough to take it apart yourself check for the inside metal components being a black/burnt color. This would indicate that you ran on low oil, and was just burning it off. It could be your bearings that are gone if its noisy, but it really can be anything. I would still do a complete rebuild, and make sure to check your cooling lines afterwards to make sure it's being fed oil. Good luck.