Winterize carb

Pdevito

Seaman
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Mar 22, 2022
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does anyone put sea foam in fuel line to flush out gas before dhutdown for 4 month period. Im trying to keep carb from gumming up.
 

Lou C

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I’ve been storing my 4.3 I/O with the 4 bbl Quadrajet carb for over 20 years and never did that every spring it fires up after the fuel pump fills the carb.
 

Pdevito

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Mar 22, 2022
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We have that blend of gas(menthonol) in phoenix for the winter gums up if sits too long. I rebuilt my carb 2 yrs ago
 

dingbat

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Nov 20, 2001
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We have that blend of gas(menthonol) in phoenix for the winter gums up if sits too long. I rebuilt my carb 2 yrs ago
Methanol?
Are you sure it’s not ethanol?

EO or E10 will gum up over time if left untreated.

I throw a bottle a Stabil in the tank before the last outing of the season. Starts right up in the Spring
 

jimmbo

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May 24, 2004
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A Fuel Stabilizer will be fine and added to the Tank, helpsthe entire Fuel system.
Now if we could only ban Alcohol from the refining of Gasoline. But a Special Interest Group will prevent that.
 

Scott06

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does anyone put sea foam in fuel line to flush out gas before dhutdown for 4 month period. Im trying to keep carb from gumming up.
I add stabil to the tank before last run of season. Never had an issue with non ethanol or E10 doing this.
 

airshot

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Jul 22, 2008
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I run seafoam all season then add a little heavier dose on the last tank. Never had a spring start up issue since I have been using it... 30 plus years !!
 

Pdevito

Seaman
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Mar 22, 2022
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Ive heard from a mechanic i should run it out of gas and send sea foam down the fuel line to flush out last if oxygenated gas that gums up. Any thoughts?
 

matt167

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Sep 27, 2012
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If you wanted to flush the carb out with anything, flush it with true fuel which because of how it’s made, lasts much longer than regular gas. It’s Alkylate fuel.
 

dingbat

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Nov 20, 2001
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Ive heard from a mechanic i should run it out of gas and send sea foam down the fuel line to flush out last if oxygenated gas that gums up. Any thoughts?
Anything that starts with “I heard” is…..$&@%#£€

My suggestion…..get a new mechanic
 

Scott06

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Apr 20, 2014
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Ive heard from a mechanic i should run it out of gas and send sea foam down the fuel line to flush out last if oxygenated gas that gums up. Any thoughts?
to be blunt sounds like a dumb way to get gas treatment in the carb... put it in the tank so it gets mixed and run it on the way to pull it out at end of year ( or on the trailer). Has worked for me for 30 years on both E10 and non ethanol. Boat I get non ethanol dock side jetski I fill up cans with E10 at the gas station. Never an issue with either.

With the method you were told what prevents the same gas from varnishing in the tank ? So you have a clean carb and put potentially varnished fuel in it?

The real secret is to just burn the gas and change your fuel filter annually. The fuel filter will tell you what's going on before it is an issue. Its in the bowl on the bottom of the fuel pump on a 3.0.
 

jimmbo

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May 24, 2004
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Personally I would Never put SeaFoam in the Fuel. Nor would I used it to clean Combustion Chambers and/or Rings. It is mostly Light Oil, and Naphtha.
I know some People swear by it, however, I swear at it.
There are far better Products for Stabilizing Gas. Mercury and BRP Market some, Sta-Bil markets a couple that are good for Marine Engines
 
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