I have a 1989 evinrude 25 hp outboard motor that I am having problems with the lower unit. I was told that the oil was drained when i got it a few days ago but come to find out it is leaking out. I bought the seals thinking thats where it was leaking from ( behind the prop). After looking at it closer the oil is leaking from the prop shaft screw. BUT, the screw wont come out. It seems like the threads were crossed at one time and now it just free spins and wont come out. First things first how do I get that screw out? I cant hardly get in there very well because the gear case is in the way and I cant figure out how to remove it. Help please!