Water on engine and...bad hole?

[strokeoluck]

I took our boat (see below) in to the marine shop for winterizing and a few other misc. things. Stupid me, I didn't cover the boat when I took it in. Don't ask why, it was just stupid not to do it. So there it sat, outside along with 100 other boats. They told me it would be 2-3 days. After 3-4 days I called them and they said they lost the work order but they'd get right to it. Then I had some travel and by the time I got back to town the boat was at their place for two weeks, mostly outside during that time. And since it's normal fall weather here in MN it was raining and/or snowing half of those days.

The boat's now in my garage and it's pretty water-logged as you can imagine. I jacked the front way up, opened all the hatches, took everything out to dry, took the wet/dry vac to the carpets and any other nook and cranny I could find. When I opened the engine cover I noticed that the engine had dew-drop type moisture all over it. (See pic) Is this damaging to the engine? I wiped it off the best I could but there's still moisture on it.

Also, while looking in the engine compartment I noticed that one of the duct-looking things (?; see pics) had a "tear" (?) in it. Are these things designed to pull the fumes out of the engine? If so, is this tear/hole normal? Just want to make sure it's not supposed to be connected to something down near the bottom of the engine.

Thanks!

 

[a70eliminator]

Re: Water on engine and...bad hole?

Ah yes, lovely condensation isn't it. once it dries up spray a coating of wd-40 or something similar. Ther's not much that can be done aside of running a small fan to circulate air, your ventilation hoses do need attention they shouldn't be torn like that.

 

[Bondo]

Re: Water on engine and...bad hole?

Ayuh,... The condensation will dry off,... A fan would help, but time will do it...
No real harm,..

As for the ventilation hose,...
That says the motor has been run Without water flow,.. For Awhile... That's Melted from exhaust heat...
I would imagine All the rubber parts in the exhaust path are parched...
Shutters are probably laying in the bottom of the y-pipe...
The hose itself could be trimmed, or left alone,...It's, it's Story that's interesting....

 

[strokeoluck]

Re: Water on engine and...bad hole?

Thanks guys. A few follow up questions if you don't mind:

once it dries up spray a coating of wd-40 or something similar.

Will do. But I'm curious, what does this do? I've always used WD-40 for metal lubrication.

As for the ventilation hose,...
That says the motor has been run Without water flow....

So can someone tell me what these hoses are for? What purpose do they serve? I guess I assumed they were there to exhaust any gas fumes, but you're saying they have something to do w/water flow?

For Awhile... That's Melted from exhaust heat...

Again, just need help understanding how this works. What is it that's near this hose that is exhausting heat? And if it's safe to assume the mfgr put the hose there in the first place, how is it possible that something "burned" (???) the hose?

I would imagine All the rubber parts in the exhaust path are parched...

1) What rubber parts?
2) What exhaust path?

Shutters are probably laying in the bottom of the y-pipe...

Shutters? Y pipe? Is this something I need to worry about?

The hose itself could be trimmed, or left alone,...

So are you saying that by leaving the torn/open end hanging down there that it's still functional?

Thanks.

 

[TilliamWe]

Re: Water on engine and...bad hole?

The "duct" thay you saw "torn" looks like it's actually melted. And since it is sitting next to your exhaust "Y-Pipe", Bond-o is reasonably inferring that your exhaust system got hot enough to melt it. Well, your exhaust system is water cooled and should NEVER get hot enough to melt that plastic.
There are rubber hoses that connect your exhaust manifolds to an elbow. A rubber hose connects this elbow to the "y-pipe". At the top of the y-pipe is a rubber flapper, called an exhaust shutter (but almost everyone calls them flappers), that is supposed to keep water from being forced back up into the exhaust when going in reverse, or during launch from a trailer, or while beached with waves hitting the transom.
Since your exhaust sytem got hot, it is reasonable to think that your shutters are melted (when they melt, they can actually fall down into the y-pipe and clog up your exhaust passage to the outdrive.) and the rubber hoses could be damaged.

 

[strokeoluck]

Re: Water on engine and...bad hole?

Ok, making more sense...to a non-mechanical rookie.

Wondering why the heck the marine shop didn't catch this. They did say the engine may have been running hot because I told them I heard erratic warning beeps/chirps out on the water. They replaced the impeller for me.

Is this water flow issue something I can figure out and/or repair?

 

[TilliamWe]

Re: Water on engine and...bad hole?

Is this water flow issue something I can figure out and/or repair?

If you can read and retain any information and have some tools and a little bit of mechanical skill, yes.

Download the manual that pertains to your engine/outdrive and start reading.

 

[a70eliminator]

Re: Water on engine and...bad hole?

As for the hose vents, there should be one hose that leads to a fresh air intake opening somewhere in the hull, on the other side of the bilge should be another hose that leads to the inlet of a 12V blower operated by a switch on the helm, the blower should be turned on and run for several minutes before starting the engine, this dilutes the bilge area with fresh air and chases out any accumilated fuel vapors, the blower could very well save you from an explosion if you had a small unoticed fuel leak. The hose off the blower itself should be routed low in the bilge, the fresh air intake routes higher in the bilge, there are sometimes two fresh air hoses, they also supply air for the motor to breath, remember the exhaust comming out of the motor is the same CFM as whats going in through the carb, roughly 500 cubic feet of air.
I mentioned WD-40 for spraying the motor's exterior surfaces, all this does is protect the metal surfaced from rust and corrosion and condensation will definately rust thing up if left unchecked.