I'm new at this boat stuff, I'd like to think that being able to be rebuild motorcycle and truck engines will be helpful... but we'll see... So I've got a boat with an '83 4 cyl 120HP with a Merc drive... I'm not 100% sure what it is, but we'll get to that. I've searched for this issue on the forum without success, so here's my post:
While running, the outdrive began to make a squeal... a typical bearing saying "goodnight" type of deathrattle. So I stopped right away. When I slowed to an idle, the engine seemed to be working like it was still under a load, even in neutral. S0 I shut if off, thought about what it could be and decided to just run it the 500 feet or so to the launch(lucky, huh?).
So I brought it home, and read here about Gimbal Bearings, which does have a slight wear to it, no big deal... (I just need some advice on changing that). Secondly, the drive shaft is almost impossible to move, and it all seems to be coming from the upper part of the drive. What should I be looking for?
The grease around the Gimbal was white, seemed contaminated with some water. The Case oil also seemed to have traces of water as well as some slight grit(yeah, I know - bearings). I also noticed some potential signs of the o- ring for the cooling water to have failed. Would this cause this issue?
The water pump was replaced on this unit... I dunno, 10-20 hours ago, maybe more - it was before I took over ownership from the in-laws
messy, huh?
My questions are:
Now what?
How to I make 100% sure that I have found the leak?
And what is the most budget friendley way out of this mess?
Thanks a million!
While running, the outdrive began to make a squeal... a typical bearing saying "goodnight" type of deathrattle. So I stopped right away. When I slowed to an idle, the engine seemed to be working like it was still under a load, even in neutral. S0 I shut if off, thought about what it could be and decided to just run it the 500 feet or so to the launch(lucky, huh?).
So I brought it home, and read here about Gimbal Bearings, which does have a slight wear to it, no big deal... (I just need some advice on changing that). Secondly, the drive shaft is almost impossible to move, and it all seems to be coming from the upper part of the drive. What should I be looking for?
The grease around the Gimbal was white, seemed contaminated with some water. The Case oil also seemed to have traces of water as well as some slight grit(yeah, I know - bearings). I also noticed some potential signs of the o- ring for the cooling water to have failed. Would this cause this issue?
The water pump was replaced on this unit... I dunno, 10-20 hours ago, maybe more - it was before I took over ownership from the in-laws
messy, huh?My questions are:
Now what?
How to I make 100% sure that I have found the leak?
And what is the most budget friendley way out of this mess?
Thanks a million!
