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Old 09-11-2010, 03:26 AM
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Default Help- outboard has been under water

Hi my outboard has been under water a couple of hours and i don't know what to do.
It is an 2005 yamaha autolube 30 hp (2stroke)
is it absolutely critical i get it to a shop now or can i fix it myself?
It was in sweet water.
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Old 09-11-2010, 04:36 AM
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You need to be ready to work on this motor as soon as you remove it from the water. This is even more urgent if it is salt water. Excuse my geography not sure what you have there (Sweet?).
Can you do it? Sure, if you are more mechanically inclined than most. You want to get some water displacing lube such as wd40 and have that ready to apply liberally. Things will start to corrode as soon as air hits them.
I would pull the spark plugs and crank motor by hand to get water out of cylinders asap and would oil cylinders and crank some more.
If you search this forum the proper procedures will be found. There was a thread just the other day.
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Old 09-11-2010, 06:10 AM
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Default some tips..

after you get her plugs out spray her down with marvel mystery oil and even up in the plug holes and coat everything...(makes a mess when your spinning it over so make sure you don't shoot it out all over your shop.) clean up .. I like 'roll off' and rinse and then I take a good air compressor and blow them off and I spray them down with w-d / 40 real good and start from the top of the engine and use the air compressor again to spray off (down) the extra wd-40.. change your filters and check your tank for water.. make sure your oil system has no water in it!

the air compressor with the wd-40 believe it or not cleans real good by just blowing it down into a old towel in the engine cowling.. even if you have an engine that is salty .. roll off seems to protect the wires and plastic parts.. imo
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Old 09-11-2010, 06:25 AM
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also run more oil mix than you normally do...premix with your gas if you still have oil injection for a little while. over oiling is better than taking a chance on scoring metal parts.
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Old 09-11-2010, 07:24 AM
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With sweet water I mean no salt
Thanks for the tips
I ve now sprayed all three cylinders with wd40 and al three carburetors (first I drained most of the water from the cylinders )
I've yet to drain the oil system (there was no water visible but for peace of mind I will)
Blowing the water out is enough? is it not needed to take the engine apart?
I will also drain the feul system and change filters .
The engine was under water for 3 hours and when I got it up didn't do anything to it so it sat for 10 hour with water in it ( I know now stupid)
Is this all?
Or should I just get it serviced
Thanks a bunch
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Old 09-11-2010, 08:20 AM
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get it running as fast as you can. use a separate tank with an oil/gas mix. and let it run . i would run it as often as you can all weekend. no load just let it idle
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Old 09-11-2010, 05:06 PM
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Default use it and don't sink her again..

you can also get the clorox cleanup from the grocery store and spray out all the inside of your boat and rinse it will take the smudge off from water..
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Old 09-11-2010, 09:05 PM
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Okay, I'll ask. Was the boat attached to the submerged motor?

The reason I ask is that I had a boss who claimed to have dove into the ocean to "catch" his then sinking outboard motor which fell off the transom while twenty something miles out to sea. I call BS as he is probably 90 pounds soaking wet and a smoker on top of that.

Oh and BTW, I once bought a junkyard V8 engine that was sitting uncovered for who knows how long. I did the flood the cylinder thing with 30w oil and turned the crankshaft by hand thing, checked the compression and installed the engine. It fired up on the first try! Good luck.
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Old 09-11-2010, 09:18 PM
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Quote:
Originally Posted by take one View Post
get it running as fast as you can. use a separate tank with an oil/gas mix. and let it run . i would run it as often as you can all weekend. no load just let it idle

This is the correct reply for a two stroke. But , do not idle for more than 10 min the run the heck out of it! 2s don't like to idle they prefer hi speed.
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Old 09-11-2010, 09:18 PM
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Once submerged, call insurance or eat the loss. To hard to bring back into a reliable user, Much like an airplane, salvage only.
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Old 09-11-2010, 09:28 PM
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Sunk a small motor once,pulled out the plug and got the water out of the cylinders.Drained the carburetor of water.New gas mixture,gave each cylinder a shot of lighter fluid to help it start first pull.Started engine and let idle for a while.She is fine today!Definitely wouldn't consider junking the motor!
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Old 09-11-2010, 09:46 PM
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Sometimes you can get them going without disasembly but often flywheel needs to be removed to dry out ignition. A late model motor(like yours) with electronic ignition you can probably do less. Most of my experience has been with earlier breaker point stuff and I always had to remove flywheel.
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Old 09-12-2010, 05:07 AM
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also hose that motor down, i mean totally saturate it with crc 6-56. been doing my my old mercs, and now my yammies every other week for years. keeps the motors nice and shiney under the cowls
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Old 09-12-2010, 05:09 AM
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Quote:
Originally Posted by solarfry View Post
This is the correct reply for a two stroke. But , do not idle for more than 10 min the run the heck out of it! 2s don't like to idle they prefer hi speed.
yea they might start to load up, just blip the throttle to clear it out and idle some more
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Old 09-12-2010, 04:34 PM
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Originally Posted by testerman28 View Post
you can also get the clorox cleanup from the grocery store and spray out all the inside of your boat and rinse it will take the smudge off from water..
the point was that i use it so much i left in uncovered for one day because the next day i would go out again.
this was a stupid move because it was a friday night and it is moored right in the city center
so some (probably drunk) aholes tought it was good fun to remove my plug.
the boat was under water for less than three hours so the boat is fine(little 5meter skiff) except for the stereo and vhf. also two hinges came of on my hatch because the automatic inflatable pfd got a little bit cramped.
Insurance will handle it but i dont want a new motor cause ive owned it since new and it was one of the last 2strokes they produced.

im in the proces of checking the oil and fuel systems of the engine but i think i will just get it to a mechanic

what happens to a battery when it is underwater? still usable?
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Old 09-12-2010, 04:52 PM
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Quote:
Originally Posted by krugger3 View Post
Once submerged, call insurance or eat the loss. To hard to bring back into a reliable user, Much like an airplane, salvage only.
in my country a 30 hp engine is quite expensive

example 40 horse 4stroke yamaha 4900 usd
40 horse 4stroke yamaha 6999 euros (6999euros = 8874dollars)

here is everything that has something to do with boats super expensive
not to mention gas bills
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Old 09-13-2010, 12:07 AM
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get it running - pull the plugs and turn it over putting your fingers over the holes - will help suck out water, hand pulling is fine. Spray the cylinders with WD40 and drain the carb bowls - there will be a drain screw and squeeze the bulb with fresh gas to flush the system. Spray the whole outside with WD40 and try to start it, idling is fine just get it running and it will oil itself and dispel the water. If you can't get any spark just fill the whole thing with oil - pour it down the cylinders and the carb - turn it over slowly to make sure it gets around the crank, thats the important part.
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Old 09-13-2010, 12:23 AM
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Quote:
Originally Posted by krugger3 View Post
Once submerged, call insurance or eat the loss. To hard to bring back into a reliable user, Much like an airplane, salvage only.
BS...

On IRBs the Motors get sunk quit often...

dry them, dry the Carb/fuel system, give it new sparksplugs if availbe and out on the water again as fast as possible.

The trick is to get the water out as soon as possible.

2 Years Ago i´ve rebuild a boat that was totally submerged incl a 200hp Opti. The engine now has run the second season without any Problems....
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Old 09-13-2010, 12:26 AM
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Quote:
Originally Posted by With400 View Post
what happens to a battery when it is underwater? still usable?
get a new one..
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Old 09-13-2010, 12:33 AM
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Default I agree ...

get a brand new battery and keep your paperwork on warranty you will need yours as a core though..

if you want to laugh a guy I fish with has a son that has put a yamaha enduro under like 8 times now .. commercial quality gear never gets any better..
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