Serial number 225587151. It will pump water for a minute but then it stops. I have pulled the impellar out and it looks good. On the water pump cover there is a hole and im not sure if its supposed to be there. Right next to where the water is supposed to come out there is a little hole. Its a clean hole so I'm not sure if its supposed to be there. Where does the water come out on the engine? The exhaust or the heat sink type thing?<br />Thanks<br />Chris