Go Back  Offshoreonly.com > Technical > General Q & A
How long can a boat stay submerged?? >

How long can a boat stay submerged??

Notices

How long can a boat stay submerged??

Thread Tools
 
Old 11-20-2012, 03:16 PM
  #1  
Registered
Thread Starter
iTrader: (1)
 
Join Date: May 2007
Location: Staten Island, NY
Posts: 780
Received 0 Likes on 0 Posts
Default How long can a boat stay submerged??

Long story short, my friends 26' '87 scarab excel survived "Sandy", but due to marina neglect sunk in salt water about 3 days ago.
I know the engine, electrical, and upholstery is shot, BUT, can I assume the hull is as well or is there potential to restore this boat?
Before the submersion the boat felt incredibly solid.
The boat should be out of the water within the next day.
Also what should be done once it is land locked again?
I figure a thorough flushing, stripping and drying process
Thanks in advance!!!
007joe is offline  
Old 11-20-2012, 03:43 PM
  #2  
Registered
 
Join Date: Mar 2012
Location: Clearwater, Mn
Posts: 1,226
Received 25 Likes on 15 Posts
Default

IIRC it will stay there as long as you dont lift it off the bottom. Titanic sank 100 years ago and is still submerged
92nsx is offline  
Old 11-20-2012, 03:49 PM
  #3  
Registered
 
buckknekkid's Avatar
 
Join Date: Jan 2002
Location: OAKVILLE, Ontario
Posts: 1,437
Received 1 Like on 1 Post
Default

the water gets into everything, so blisters will start to show up
buckknekkid is offline  
Old 11-20-2012, 03:59 PM
  #4  
Registered
 
On Time's Avatar
 
Join Date: Nov 2004
Location: Houston
Posts: 3,578
Likes: 0
Received 3 Likes on 2 Posts
Default

No matter what else, all the wiring's going to need replacement. Even if it still seems to work, saltwater will wick up into the wires and corrode them from the inside.
Engine/outdrive mechanical may survive with aggresive diassembly and oil bath.
On Time is offline  
Old 11-20-2012, 04:01 PM
  #5  
Registered
 
Join Date: Jan 2007
Posts: 263
Likes: 0
Received 0 Likes on 0 Posts
Default

Most of the damage from salt water on all of the parts and wiring comes not from how long it was under water but how much air gets to it without being cleaned off.
The hull itself is probably fine unless it wasn’t sealed well around the stringers and transom. I would guess that the floor could cause a problem because the underside of the wood is usually not sealed like the top.

I you are really want to know makes a small pilot hole low on the stringer and see what happens, is the wood solid and dry?

The best thing you can do is exactly what you have already said flush the salt and muck as quickly as possible. Start with a general rinse and then go for the electrical components and anything that could hold water open it up then clean it or flush it out.

Pull the engine drain plug and spark plugs then run fresh water through the engine let drain and then doo all that you can to coat with something to save it. Pulling the engine right away and opening it would be a good idea if possible.

Good luck! I would think that you could save it if it was worth it to yourself.
1987pachanga22 is offline  
Old 11-20-2012, 04:20 PM
  #6  
Registered
 
Join Date: Jan 2002
Location: Further South East of Dome Island
Posts: 2,014
Received 34 Likes on 22 Posts
Default

Lots of fresh water flushing immediately will save a lot. Hull will be fine. Salt is a killer, if it was fresh clean water then it would be no big deal.
Pismo10 is offline  
Old 11-20-2012, 05:06 PM
  #7  
Registered
iTrader: (1)
 
Join Date: Jun 2009
Location: Chicago
Posts: 8,736
Received 4,325 Likes on 1,241 Posts
Lightbulb

It would be best to turn it into a submarine
ICDEDPPL is offline  
Old 11-20-2012, 05:22 PM
  #8  
Registered
 
Join Date: Oct 2005
Location: Plainville/Old Lyme, CT Boca Raton, FL
Posts: 6,141
Received 292 Likes on 138 Posts
Default

Remember to get the engine running right away, and let it run for hours if possible. Have all the spare parts like distributor, wires, coil, spark plugs, etc ready to go before you even pull it out of the water. Every hour counts and air is your worst enemy. If you aren't ready to really go at it and go through the whole thing right when it comes up, you are better off leaving it under water until you're 100 percent ready. We've actually pulled planes out of the ocean and brought them straight to a freshwater lake, sunk them and let them sit overnight.
302Sport is offline  
Old 11-20-2012, 05:58 PM
  #9  
Platinum Member
Platinum Member
iTrader: (1)
 
articfriends's Avatar
 
Join Date: Jun 2004
Location: frankenmuth michigan
Posts: 7,140
Received 814 Likes on 373 Posts
Default

Originally Posted by 302Sport
Remember to get the engine running right away, and let it run for hours if possible. Have all the spare parts like distributor, wires, coil, spark plugs, etc ready to go before you even pull it out of the water. Every hour counts and air is your worst enemy. If you aren't ready to really go at it and go through the whole thing right when it comes up, you are better off leaving it under water until you're 100 percent ready. We've actually pulled planes out of the ocean and brought them straight to a freshwater lake, sunk them and let them sit overnight.
I was wondering to myself if you resunk it in freshawater how much would get cleaned but wasn't going to say it. I have seen truck transmissions and motors that got swamped before and they always seem to have sand/dirt in them, I would drain motor then fill it with oil to the top including the cylinders until you could disassemble it, Smitty
articfriends is offline  
Old 11-20-2012, 06:42 PM
  #10  
Registered
 
Join Date: Nov 2010
Location: Adelaide Australia
Posts: 25
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by 92nsx
IIRC it will stay there as long as you dont lift it off the bottom. Titanic sank 100 years ago and is still submerged
And the swimming pool on the Titanic is still full after all those years!
Cartscarts is offline  


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.