. Im trying to install a new impellar my Prostar and I can't get the new one in for the life of me. Im very frustrated as this task has taken 10minutes on my past boats. Ive tried all my tricks in the hat. No matter what I do, the key falls out of place. I disconnected both hoses now as it finds it way out of the water pump. Not only am i wasting time looking for the key in the bilge, im losing ski time. Ive tried ky jelly , wd40 and zip tide the impellar to go in easier. It doesnt matter. I cant line it up and out goes the key. Its beyond frustrating , this should take no time. As owners with this boat , its not possible to bump the motor so that the key sits on top. My luck its sitting on the left side so im in a bad spot as it is. I hate to take to dealer for what should be so easy. Anyone have any tricks I have not tried. Only thing I can think of is to remove the pump to have easir access.