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I believe my boat was previously sunk

Old 06-12-2019, 06:25 AM
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Default I believe my boat was previously sunk

I recently purchased a 2000 Cobia 220WA. It has the original trailer and original motor. Some of the upholstery has been renewed along with the some new gauges after a motor rebuild. I paid $15,000 for it.

I've been doing some work on the boat and I am seeing telltale signs the boat was previously sunk. I am finding scum inside compartments. There is no waterline, just scum on the overhead of the compartments and inside the dash. I don't see very much corrosion that would seem more than a 19 year old boat would have in a saltwater environment. I spent more than 30 years in the U.S. Coast Guard as a Boatswain's Mate and BOSN so I've seen my fair share of sunken boats and what a saltwater environment can do to a boat.

I plan to take the boat down to parade rest this winter and go through everything. However at this point I am curious about cleaning those interior spaces. I was thinking about using some kind of cleaner/degreaser to spray in the inner parts of the hull and then use my pressure washer to clean it very carefully.

Has anyone restored a sunk boat before? What have you used with good success to clean the inside of the boat of scum, dirt, and possible oil residue?

Tom

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06-12-2019, 12:52 PM
cobraarvey
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I may be totally off, but in my opinion those pictures show nothing more than 20 years of exposure to a marine environment. I've seen a heck of a lot worse, especially in inboard engine compartments and bilges on most boats.
Old 06-12-2019, 06:56 AM
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Are you sure it's scum? Mold and mildew and easily for inside a cabin like that especially in your environment. Post some pics and let the brain trust offer their opinions.
Old 06-12-2019, 08:10 AM
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pics
Old 06-12-2019, 08:18 AM
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x-14
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Old 06-12-2019, 08:36 AM
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i would imagine that the wiring would be complete shit and corrosion every where if it were sunk at some point, unless it has been completely rewired!
Old 06-12-2019, 08:42 AM
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Scum in a bilge, compartments and enclosed areas of a 19 year old boat certainly isn't a sure sign of the boat previously being underwater. More than likely it is mildew and slime from lack of air circulation over the years. Certain areas of all the boats I've owned over the years would build up mildew and slime in a matter of weeks. Hit it with Zep Mold and Mildew cleaner and hose and brush it away. Signs of sinking: severely corroded electrical contacts, wiring, etc., scum line, water logged floatation foam.
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Old 06-12-2019, 12:46 PM
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As requested.


Port side of the engine morse control


Forward side of the engine morse control


Starboard side of the engine morse control


Just below the engine morse control


Electrical switch panel on the backside of the console


Grounding block under the console


Bottom side of the console top


Fresh water tank below the sink basin in the cabin
Old 06-12-2019, 12:48 PM
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Originally Posted by popeyeiii View Post
Are you sure it's scum? Mold and mildew and easily for inside a cabin like that especially in your environment. Post some pics and let the brain trust offer their opinions.
As you can see from my pics, there is some mold and mildew, but I also see fine sandy grit deposits. There are some greasy areas further aft too, like oil was in the water when it sank (from the oil reservoir for the 2-cycle oil injection system).
Old 06-12-2019, 12:50 PM
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Looks like a 19 year old boat that has never seen a complete detail in its life.

Dollar Store for a product called Awesome and get to cleaning.
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Old 06-12-2019, 12:50 PM
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Originally Posted by cobraarvey View Post
Scum in a bilge, compartments and enclosed areas of a 19 year old boat certainly isn't a sure sign of the boat previously being underwater. More than likely it is mildew and slime from lack of air circulation over the years. Certain areas of all the boats I've owned over the years would build up mildew and slime in a matter of weeks. Hit it with Zep Mold and Mildew cleaner and hose and brush it away. Signs of sinking: severely corroded electrical contacts, wiring, etc., scum line, water logged floatation foam.
I was accepting of the general filth until I started digging around a little more. Then again I'm used to being on boats in the Coast Guard that you could eat off any surface nearly, including the engines.
Old 06-12-2019, 12:52 PM
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I may be totally off, but in my opinion those pictures show nothing more than 20 years of exposure to a marine environment. I've seen a heck of a lot worse, especially in inboard engine compartments and bilges on most boats.
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Old 06-12-2019, 12:57 PM
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Mean Green works well.......
Old 06-12-2019, 12:58 PM
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It's funny, I'm not a clean freak by any means, but I do try to keep a tidy boat. My boat is 20 years old and lived it's whole life outside here in Fl. When I access a compartment I haven't been in for months or longer it will look like that or worse. I try to address it as much as possible, problem is we are ALWAYS using the boat!

I don't think it's been sunk, just never been cleaned in those areas.

Last edited by signmansez; 06-12-2019 at 01:30 PM.
Old 06-12-2019, 01:00 PM
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It looks alright to me.Go cover it with bait slime and fish blood.
Old 06-12-2019, 01:00 PM
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I guess I'll swing into the Dollar General Store later today and grab a gallon or two of LA's Totally Awesome. The reviews are off the hook about that stuff and it's only $3.00 per gallon jug.

Thank for your input. I really appreciate it!
Old 06-12-2019, 01:02 PM
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Doesn't look that bad to me really. Does all the electrical work? If so, clean up what you can and roll with it.
Old 06-12-2019, 01:03 PM
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Originally Posted by Hook Marine View Post
Doesn't look that bad to me really. Does all the electrical work? If so, clean up what you can and roll with it.
Pretty much all the electrical works with a few minor issues (bad connections, etc.). Based on feedback I'm just going to clean it all up and let it be.
Old 06-12-2019, 01:04 PM
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Actually, it looks pretty dang good for a boat that old!
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Old 06-12-2019, 01:38 PM
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looks good to me, I’d say it’s not been under from the pics.
Old 06-12-2019, 01:48 PM
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I agree looks like normal age and not cleaning of those hard to get un seen places. I am sure if I start looking in hidden area of my boat it will be similar. Although I did see what looked like cheap speaker wire, That was definately not factory.

I clean the exposed areas regularly, but not I can not say I open the simple access ports to clean inside. All hatch compartments will get clean etc. But not bilge like areas. That is one of the benifits to the outboards. My motor is not in a moldy bilge.

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