Re: submerged motor
REMEMBER, ONCE IT'S OUT OF THE WATER (and do get it out of the water as soon as you can),
YOU'VE GOT 2 HOURS TO SAVE IT.
Following complete submersion of your outboard...
Submerged outboard engine treatment is handled three ways depending on the type of submersion
1. MOST CRITICAL - submersion in salt water
Salt Water Submersion - Due to the corrosive effect of salt water on internal engine components, complete disassembly of the outboard is necessary before any attempt is made to start the engine.
2. 2nd Most Critical - outboard submersion while running (fresh water)
Fresh Water Submersion While Running - When an outboard is submerged while running, the possibility of internal engine damage is greatly increased. If, after the outboard is recovered and cleaned (see #3), and with spark plugs removed, the engine fails to turn over freely when turning the flywheel, the possibility of internal damage (bent connecting rod or bent crankshaft) exists. If this is the case, the powerhead must be disassembled. If the engine turns over freely, continue #3.
3. Submersion in fresh water, outboard engine not running
1. Recover the outboard as quickly as possible.
2. Remove cowling.
3. Flush outside of engine with fresh water to remove mud, weeds, etc. DO NOT attempt to start the outboard if sand has entered the powerhead, as the powerhead will be severely damaged by this. Disassemble the powerhead if necessary to celan components.
4. Remove spark plugs and get as much water as possible out of the powerhead. Most water can be eliminated by placing the engine in a horizontal position (with spark plug holes down), then rotating the flywheel.
5. Pour alcohol into the carburetor throat (alcohol will absorb water). Again, rotate the flywheel.
6. Turn the engine over and pour alcohol into spark plug openings and again rotate the flywheel.
7. Turn engine over (place spark plug opening down) and pour engine oil into throat of carburetors while rotating flywheel to distribute oil throughout crankcase.
8. Again turn engine over and pour approximately one teaspoon of engine oil into each spark plug opening. Again rotate flywheel to distribute oil in cylinders.
9. Remove and clean carburetors and fuel pump assembly.
10. Reinstall spark plugs, carburetors, and fuel pump.
11. Attempt to start engine, using a fresh fuel source. If engine starts, it should be run for at least one hour to eliminate any water in the engine.
12. If engine fails to start, determine cause (fuel, electrical, or mechanical). DO NOT allow engine to remain idel for more than 2 hours, as serious internal damage will occur. If unable to start engine in this period, disassemble engine and clean all parts and apply oil as soon as possible.
