I have a 1981 75hp Evinrude,Fuel is leaking from the bottom of the power head on the intake side it appears to be leaking from the lower Crank Shaft seal area. I pulled the lower unit off a couple of weeks ago to replace the impeller, is it possible that I damaged the Lower Crank Shaft seal when I removed or replaced the lower unit. The lower unit separated from the top end without any problems and the same is true when I put it back on to the top end. I need some advice before pulling the power head to get to the lower crank shaft seal.