I will start off by saying that I am very new to boats. I have owned my boat (1989 Sea Ray 160) for about 1 month now. Mercruiser 3.0 with Alpha One. I was having problems with the throttle sticking so tonight we put the earmuffs (correct name? I dunno) on the outdrive, fired up the engine and was using just a small amount on the carb to try to get it cleaned up a bit. Anyway, water was flowing fine. I then kicked the throttle just a little bit (maybe 2200 RPMS) and all of a sudden it quit taking water and a horrible noise started coming from what sounded like behind the engine. I took the belts off and spun the water pump by hand and it spun freely and didn't make any noise. Could this just be the outdrive water pump needed rebuilt or did I most likely mess something up even more serious?

