Short version?Gear case with lots of water in it,fishing line wrapped inside seals..etc.. also replaced impeller and various and assorted gaskets,seals,oil,and Popet diaphram whatever that is.He replaced the impeller just because he already had the unit taken apart and figured while he was there might as well take care of that too. all for about $250. now if I can just afford to put Gas in it I will test it on monday.sure was nice not losing the boat for 2 or 3 weeks.I think he delayed a fishing trip to work on my boat even though I told him I could wait.