Best way to preserve/"fog") motors?

[amuller]

OK, I ordered 2 cans of Sta-Bil fogging oil from Walmart for $4.99 each and free shipping.

[Mumbles]

Here’s a tip to help out while fogging motors to empty the carb/fuel lines and coat the internals at the same time. With the motor running, I unplug the fuel line and use a cheap dollar store timer to see how long it will run before running out of fuel. I do this several times without adjusting the throttle to make sure I’m getting consistent times. When I’m ready to fog, I watch the timer and when the motor is getting near the end of its fuel supply, I start spraying the fogging oil. This way, when the motor dies I know its from lack of fuel and not from the fogging oil fouling the plugs and leaving fuel in the system.

If you are using Sea Foam to decarb a motor or fogging a motor, it’s best to do this on a breezy day or at night if you have neighbours nearby!

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[PugetSoundBoater]

I fog and run Sea foam through my motors when the neighbors are at work,I’m retired so i have that option. I try to be a good neighbor. I don’t really want to hear "What in the hell are you doing over there?"

"Some people want to know how a watch works, others just want to know what time it is"
Robbie Robertson

[outbdnut2]

I dump a half a can of Sea Foam slowly down the carb of my V6 MerCruiser I/O ski boat the last time I start it – any mosquitoes nearby are goners!
Dave

[jerry-ahrens]

Fogging is very necessary on any outboard with roller bearings in the crankcase. My favorite method is to have a can of fogging oil and using the red extension tube spray directly into the carb throat while the engine is running. While I’m fogging the motor, I already have the fuel line disconnected… I like to treat the fuel with stabilizer as well. If you know what to listen for, you can hear when the engine has consumed the remaining fuel in the carb bowl, as it will speed up slighty. Continue to fog the motor a few seconds more, then let it die. I don’t worry about removing any spark plugs to squirt oil into the cylinders, because in my opinion, you have already accomplished that. Here on Lake of the Ozarks, it is very rare to see someone fogging an outboard, say on a bass boat, etc. I can’t tell you how many motor’s have come through my shop with rust in the cylinders! Not fogging a modern roller bearing motor will promote crankshaft and bearing rust as well… a good way to ruin your motor. Of course outboards with brass bushings need to be fogged too, IMO.
As far as what fogging oil to use, I think any would work. My preference is Quicksilver which is very good stuff, or I use CRC brand, my personal favorite

[amuller]

Agree with Jerry–my primary corrosion concern is with roller bearings in the crankcase. Plain bearings, which usually retain a layer of oil, are less vulnerable to corrosion.

[labrador-guy]

I have a little different way of winterizing my one arm bandits. First all my motors have a tag on them. With info about the last time they were run and work they might need. Motors not run in the season get the roll over on Friday method. The runners get the prop pulled to check for fishing line, plugs pulled, pistons put at bottom dead center, and I shoot the fogging oil into the transfer ports while the motor is tilted up. Trying to get the oil into the crankshaft area. I also found out you can send some fogging juice up the gas line connector. Put the plugs back in and roll the engine over with compression to move the oil around some. Check lower unit for water, either change oil or leave it empty if it is milky color. I have home made covers for all my motors. Old sweat shirts that I have cut the sleeves off and sowed the neck and the arm holes together. The covers help stop the nicks and dings that happen when the baby’s are moved around in the off season.

dale

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[labrador-guy]

One more!

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[Tubs]

I fog four fog strokes but not 2 strokes.
All my stuff is in a dry but not heated building.
If I had to store any 2 strokes outside I
would either fog them or dump some extra oil
in the gas before shutting one off for the last time.

A "Boathouse Repair" is one that done without having tools or the skills to do it properly.

[oltimer]

quote Tubs:

I fog four fog strokes but not 2 strokes.
All my stuff is in a dry but not heated building.
If I had to store any 2 strokes outside I
would either fog them or dump some extra oil
in the gas before shutting one off for the last time.

Good one Tubs about the extra oil at shut down and putting away for the season. In my Factory "Full Service Manual" for my 1987 – 30 hp Electric, that is clearly one of the options mentioned when a fog can is not available.

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