Water rushing into engine compartment

Here is the starboard side. You can see a little gap.
 

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And here is a picture from the inside. Hard to tell, but you can see light over those pipes, that's the seam.
 

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That rub rail look 2 feet from your waterline. If you're getting water in there, you boat is sinking. But hit it with a hose and see what happens.
 
And you think enough water comes in through there to completely flood the engine compartment to the point that the flame arrester gets wet?
 
The way it was coming in, I'd like to say yes, this is the point of entry. That seem looks open for about 5 feet. The back sinks down alot when first taking off and a lot of water comes up. I will have to get it out of water and fix this seam. That may be a week or so. But I will let you know. Thanks again for all of the help!
 
nope . assuming your statement ' a ton of water' is rushing in its not a leaking rub rail .

if its a rub rail it was not that much water drowning your engine .
 
He said the flame arrester was wet not submerged. If it was that bad the engine wouldn’t be running anymore.

The rub rail can be a likely culprit depending on sea conditions and running time. The wet flame arrester was likely water being flung around by the moving belt and pulleys.

bilge pump hose loose is obvious and thru hull fittings would be obvious too. Water doesn’t need to flow that fast to build up over a period of time.

leaking bellows aren’t always obvious either.
Look closer. Check how soft the rubber is. They get brittle then leak. Could also be they are coming loose. Did you check the hose clamps are all tight on the bellows and cooling system?
 
Steve, could you take some pictures when you take the rub rail off? Very interested to hear how difficult it is to reseal.
 
its a bit hard to follow since something is odd ...

- you say you get water from PORT side and you say you see light on the STBD rubrail while the port looks nice

- you say water is RUSHING in at take off in a severity half of your engine was under water , the flame arrestor being that wet that the engine stalled.

while a not tight rubrail / hull to deck connection for sure can accumulate water in bilge from spray and splash of the waves you would have to submerge it fully to make water RUSHING in as an immediate event . unless you try to take off with 20 persons in the aft i do not see a condition where you would be able to fully submerge it . if for whatever reason the rubrail becomes fully submerged you are ready to abandon ship...

can you clarify ?
 
I really doubt it is the rubrail. And as far as I know the bottom of the rubrail should not be sealed so that any water that does get in can get back out. The hull joint should be sealed though. But either way I doubt even a 1" hole at the rubrail would let that much water in just based on how high above the water line it is.
Also, while my boat is a different brand it also has those 'cowlings' covering large holes for air intake and I don't get any water in there. Mine do appear to be higher up that yours though. You can see my covers in my pic below. I don't have any ideas other than maybe a leaky thru-hull? Maybe a cracked hose connected to a thru-hull? If it doesn't leak on the muffs I think you have eliminated almost everything else
 
Steve Walker said:
Hello all, I just picked up a 2007 sea ray sundeck 270. We love it. She was running good until she was bogging down. Turned out there was a ton of water in the engine compartment and the air filter was drenched, so no wonder she bogged down. Dried out the filter and took her for another spin to see where the water was coming from. The left side had a ton of water rushing in when we were waking off. Anyone else experience this or have suggestions what the problem may be? Maybe e the blower vents? Just sitting there is not water coming in.
Click to expand...

A couple questions.

By rushing in, do you mean water was flowing from the forward bilge and rushing aft during acceleration?

What do you mean left side? Which direction are you viewing the event from?

Did the bilge pump come on automatically, or run at all?

I can go out on a limb and assume the drain plug was installed?
 
No way it’s the rub rail gap. That is if he’s getting as much water as he says.

“Only as we plane...” or only when planed out? But not at standstill regardless of rpm in the water? If this is the case my money is on leaky thru hull that only funnels water in at certain angle or speed.
 
El Capitan said:
No way it’s the rub rail gap. That is if he’s getting as much water as he says.

“Only as we plane...” or only when planed out? But not at standstill regardless of rpm in the water? If this is the case my money is on leaky thru hull that only funnels water in at certain angle or speed.
Click to expand...
Yeah. That's what I am banking on.

I had on old thru hull transducer bottom break off underway. Didn't even notice it. As long as the stem was in the hole, no problem with the water. Pull the stem out and down she was going.
 
Golfman25 said:
Yeah. That's what I am banking on.

I had on old thru hull transducer bottom break off underway. Didn't even notice it. As long as the stem was in the hole, no problem with the water. Pull the stem out and down she was going.
Click to expand...

Ive seen these made out of plastic!
 
Mine gets water through the rub rail seal. Thought it was bellows, so we dunked the back end of the boat on the ramp and you can see it come in. We got the back end sealed up (which took care of most of the water), but need to seal the sides to eliminate it.

when you come off plane, you get water up over the rail which makes it into the boat. The sides dip down near the swim deck and you get a small amount of water as you go along.
 
Steve, make sure that your float switch fuse is good and you are connected directly to the battery. I got water up to the bottom of the pulleys the first time out, my float switch was a random red wire that wasn’t connected.

the bulge pump should take care of water ingress so that it is barely visible. It should never be up to the pulleys, you will kill your starter and electronics. You may need a new bilge pump if the float is sticking or there is some sort of blockage.
 
Hey I finally got the boat out on the water this weekend. Due to all of the saltway flushing the engine compartment Everytime the boat went out, nearly all of the electrical connections were corroded badly. But the water was definitely coming in at the seam under the rub rail. The seam was separated for about 6 feet. Today when I took off, you could see water washing off of the rubrail on the back near the corner. I want to thank everyone for their help!!!
 
I hate to say it but I don’t think this is the end of this.

Its been mentioned several times and you haven’t answered......,,does your bilge pump work and pump water overboard while this water intrusion is occurring??
 
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Yes, I'm sorry I wasn't able to get it back out to test for a little bit. The bilges work just fine.
 
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