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#4568214 - 11/08/17 07:28 PM reviving a submerged outboard motor?
motor_oil_madman Offline


Registered: 11/29/09
Posts: 4848
Loc: Houston, Texas
Unfortunately my boat sank today, so it's been a bad today. The good news is I don't have much in this boat, but it's been well cared for mechanically. Cosmetically it could use a wax job.

I took it to a local dealer and they're supposed pickle the motor and give me an assessment. I'd say the boat was worth about $3-4000 not sure what it's worth now. I'm worried it's never going to work right again since it sank in salt water.

What do you guys think? It's a 91 model but was in great shape mechanically until today.


Edited by motor_oil_madman (11/08/17 07:29 PM)
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#4568219 - 11/08/17 07:34 PM Re: reviving a submerged outboard motor? [Re: motor_oil_madman]
maxdustington Offline


Registered: 01/21/17
Posts: 634
Loc: Toronna
I would have dumped the oil and tried to fire it up right away. If you are not doing any of the work yourself it is going to cost a fortune.
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#4568222 - 11/08/17 07:36 PM Re: reviving a submerged outboard motor? [Re: motor_oil_madman]
StevieC Offline


Registered: 08/21/08
Posts: 17116
Loc: Ontario, Canada
Fresh water wouldn't have been so bad but Salt water is another story. I would definitely be inspecting everything and flushing the engine well.
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#4568225 - 11/08/17 07:38 PM Re: reviving a submerged outboard motor? [Re: motor_oil_madman]
rubberchicken Offline


Registered: 07/07/08
Posts: 399
Loc: Maryland USA
What engine ? 2 stroke or 4 stroke, make, model etc. If they pickle it fast, even in salt water it could make a 100% (ok 99%) recovery. Do you have insurance on it ?

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#4568244 - 11/08/17 07:55 PM Re: reviving a submerged outboard motor? [Re: motor_oil_madman]
motor_oil_madman Offline


Registered: 11/29/09
Posts: 4848
Loc: Houston, Texas
It's a 1991 2 stroke Johnson looper model 140hp. The shop made it sound like they should be able to get it up and running by tomorrow or the next day, but won't know what kind of electrical gremlins might show up. I don't see how it would start without taking the carbs apart though.
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#4568264 - 11/08/17 08:08 PM Re: reviving a submerged outboard motor? [Re: motor_oil_madman]
expat Offline


Registered: 05/12/09
Posts: 5393
Loc: Canada
Dump it in fresh water ASAP, while it sits, buy a gallon of two of alcohol. Drain the engine then fill and flush through carbs and spark plugs a few times with the alcohol.
Remove and drain the float chamber on the carbs.

Drain for half an hour add gas and start it up.


Edited by expat (11/08/17 08:10 PM)

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#4568267 - 11/08/17 08:09 PM Re: reviving a submerged outboard motor? [Re: motor_oil_madman]
AZjeff Offline


Registered: 01/14/11
Posts: 2632
Loc: PV Az
How did you sink a boat? There must be plenty of ways but you didn't mention any other damage like a hole in the bottom...
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#4568278 - 11/08/17 08:20 PM Re: reviving a submerged outboard motor? [Re: AZjeff]
4WD Offline


Registered: 09/21/10
Posts: 6366
Loc: Texas
Surely not:


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#4568285 - 11/08/17 08:25 PM Re: reviving a submerged outboard motor? [Re: expat]
motor_oil_madman Offline


Registered: 11/29/09
Posts: 4848
Loc: Houston, Texas
Originally Posted By: expat
Dump it in fresh water ASAP, while it sits, buy a gallon of two of alcohol. Drain the engine then fill and flush through carbs and spark plugs a few times with the alcohol.
Remove and drain the float chamber on the carbs.

Drain for half an hour add gas and start it up.


This is what worries me is the shop is going to pickle it today, but won't be able to assess what elese is wrong until tomorrow, so all that's going to happen is the crankshaft is going to start rusting. Unless it gets enough oil when they spin it over. I doubt it, but maybe.
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#4568295 - 11/08/17 08:30 PM Re: reviving a submerged outboard motor? [Re: motor_oil_madman]
Dorian Offline


Registered: 12/07/15
Posts: 300
Loc: Ohio
It can be done! My neighbor did it one evening and had it running a few hours later.
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#4568301 - 11/08/17 08:35 PM Re: reviving a submerged outboard motor? [Re: Dorian]
motor_oil_madman Offline


Registered: 11/29/09
Posts: 4848
Loc: Houston, Texas
Originally Posted By: Dorian
It can be done! My neighbor did it one evening and had it running a few hours later.


Maybe they will be able to. They sounded pretty optimistic about being able to have it running by tomorrow, Friday at the latest.
_________________________
2007.5 dodge cummins 6.7 liter. Chevron Delo400 15w40. 7000 mile or 250-300hr intervals.


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#4568321 - 11/08/17 09:01 PM Re: reviving a submerged outboard motor? [Re: motor_oil_madman]
motor_oil_madman Offline


Registered: 11/29/09
Posts: 4848
Loc: Houston, Texas
You can fill up the crankcase area on a two stroke right? Because the fuel gets sucked into the crankcase on a two stroke to lubricate the crank bearings since instead of valves like on a four stroke it has ports for the intake and exhaust, so assuming I'm correct my concern about the crankshaft being exposed would be incorrect since that should be able to be filled with diesel fuel or whatever lubricant they use for this procedure. Am I wrong?
_________________________
2007.5 dodge cummins 6.7 liter. Chevron Delo400 15w40. 7000 mile or 250-300hr intervals.


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#4568362 - 11/08/17 09:38 PM Re: reviving a submerged outboard motor? [Re: motor_oil_madman]
BrocLuno Offline


Registered: 09/06/15
Posts: 5512
Loc: Kalifornia Kollective
IF you used good oil and plenty of it before the sinking, that engine should survive ... OMC 2-strokes are pretty hardy. Many folks have different approaches. but the big deal is to get the water out and oil and heat in.

I worked at a marine outboard shop many years ago. All salt water. We got engines running all the time after sinking. Just gotta get after it. Delays hurt ...
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#4568364 - 11/08/17 09:39 PM Re: reviving a submerged outboard motor? [Re: motor_oil_madman]
expat Offline


Registered: 05/12/09
Posts: 5393
Loc: Canada
You are right, just fill the crankcase. But do it ASAP.

Simultaneous post ;-)


Edited by expat (11/08/17 09:41 PM)

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#4568369 - 11/08/17 09:41 PM Re: reviving a submerged outboard motor? [Re: motor_oil_madman]
Vern_in_IL Offline


Registered: 06/25/14
Posts: 1884
Loc: IL
Quote:
1991 2 stroke Johnson


Al Gore will hunt you down and kill you if he catches you using a 2 stroke engined apparatus.... crazy


Edited by Vern_in_IL (11/08/17 09:43 PM)
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