I had a new lower unit installed on my 1989 force 50 hp I hit a stump with the old one and it was toast. Yep I should of replaced the engine assy due to the age of the unit however the motor has low hrs on a rebuilt engine due to a overheating problem , My insurance company paid to have the motor rebuilt. I probaly have less than 30 hrs on the lower unit. I started my boat two month's ago and the engine was blowing out water just fine. I wanted to take her out this weekend and I start and check the boat prior to taking her to the lake. After the boat motor cranked ,started I noticed that no water was coming out ot the outlet holes only a small amount was coming out the holes... what gives. I cannot see any dauber nests or outer obstruction. .. help!