I went to put engine up at my mooring and I noticed that it was moving very slowly and eventually wouldn't move at all. I then noticed a kind of oil slick on the water. The sound is the same but it just doesn't move (either up or down). It is in the up position right now, is there a way to put it down (in order to pull it) and then put it back up manually (so that I can triler it to a mechanic)?