OMC out drive seized???? Help!!

[Truewakeboarder]

So I took the 1975 Cobalt 190hp out for the last run of the year. I just rebuilt the engine and got it running perfect. The boat ran fine today. Than I decided to to test endurance. I ran her up to 3500-3800 rpm between 35-39 mph. Did good for about 45 minutes. Than I heard a weired squeal sound and shut her off. Fond the belt was loose so tightened her up an reved it in neutral, it was fine. Than stared in gear and heard it again. So I started back to the ramp. Shut it off to check the belt again and would not start up. Felt like the bat was dead but was showing 12 volt. So here is the weired part

Start cranking it won't start felt like in gear and steering wheel moved

Turn the steering wheel motor would turn.

Tried hand turning the motor would not move.

Got towed in


When I got back home I disconnected the stern drive from the interimentent housing. Cranked over the motor and it was fine. So its in the stern drive some where. Gear fluid was dark and smelt bad(burnt) I. The lower. Upper was tan-brownish color. Replaced fluid 2 weeks ago with type c. I don't know where to start. Surfing the web came out with no info. Any help would be appreciated. I have all winter to fix this problem.

 

[southkogs]

Re: OMC out drive seized???? Help!!

... I'm wondering if you have a water entry issue in the upper and it seized up. Pull the upper off the lower and try turning it by hand. With the impeller it it should be difficult to turn, but should move for you. If you need a new impeller, then you can take the old one off and the unit should turn rather nicely from the ball gear.

 

[Boomyal]

Re: OMC out drive seized???? Help!!

Check the dipstick in the upper drive. Had that go dry on me once, at high speed, and it made a horrible noise and brought the boat off plane to a screeching halt.

 

[Truewakeboarder]

Re: OMC out drive seized???? Help!!

Pined it down to the lower. Have to wait till tomorrow to get a new snap ring plyer for that huge snap ring.