I bought the boat about 2 weeks ago, its a 1977 Glastron Bowrider 140 hp I/O Mercruiser Alpha I. It wouldn't shift into reverse when I tested it at home. I pulled the outdrive and noticed a little debree at the end of the shift cable where it connects to a long rectangular piece inside the bell housing. I cleaned that out. I put everything back together with a gasket&bellows kit. I haven't started it up, but I have adjusted the cables up by the engine. I also checked the outdrive to make sure it would go into reverse while it was off the boat. I have not started the engine yet, I put it into drive and was unable to turn the propeller by hand. I put it into neutral and and the propeller spun freely both ways. I put into reverse and the propeller spun freely both ways.... Is the upper shift shaft adjustable? Is that my problem? Or is reverse supposed to spin freely anyway? Im lost.
