i have a 1984 beechcraft 17 foot with a aq131a and a 270 outdrive the impeller on the boat i just bought had no fins on it after installing a new impeller it still did not suck up water after i felt the little hole at the bottom of the outdrive i found a piece there. so i assume that its clogged and so is the line can i just flush it out after i disconect it from the seapump or do i need to drop the lower part of the outdrive? if i do what do i re seal it with? thanks new here to the site thanks paul