Yes, but some people just use a graduated cylinder, ~10 ml.  (Smaller is 
better because you waste less fuel.)  Put 1 ml of water in the cylinder, add 
9 ml of fuel, then shake.  If the "water level" stays the same, there is no 
alcohol.  If there is alcohol, the "water level" will increase.

Ken Jones

----- Original Message ----- 
From: "Brian Kraut" <brian.kr...@engalt.com>
To: "KRnet" <kr...@mylist.net>
Sent: Saturday, February 11, 2006 1:20 PM
Subject: RE: KR> water in the fuel?


> Is there some kind of test kit you can get?
>
> Brian Kraut
> Engineering Alternatives, Inc.
> www.engalt.com
>
> -----Original Message-----
> From: krnet-boun...@mylist.net [mailto:krnet-boun...@mylist.net]On
> Behalf Of Kenneth B. Jones
> Sent: Saturday, February 11, 2006 9:13 AM
> To: KRnet
> Subject: Re: KR> water in the fuel?
>
>
> First, I normally run Shell regular mogas in my A-65.
>
> Two weeks ago, within 3 days of each other, two pilots who have STC's for
> mogas for their production planes volunteered information to me on their
> recent experience using Shell regular.
>
> The first one, with a Cherokee 140, told me that he had historically 
> checked
> for alcohol each time he bought gas and only used Shell.  He never found 
> any
> so he got lax about checking it.  He had some recent problems with rough 
> his
> engine sometimes running rough. He checked for alcohol and found about 
> 8-10%
> alcohol.  I checked mine and found the same thing.  He also checked a
> Marathon station and found alcohol.  Then a Mobil station and it checked
> clean.  He checked no others.
>
> The second one, with an older Debonair, always only only used mogas in one
> tank.  He took off and was climbing out on the mogas tank when his engine
> started running very rough.  He switched tanks and retruned to the 
> airport.
> He said the engine smoothed out shortly after switching back to the avgas.
> He didn't check his mogas for alcohol but just drained it and refilled 
> with
> avgas.  The three of us only used Shell and normally bout from the same
> station, but not always.
>
> My question: "Is it possible for the alcohol (in gasohol) to absorb enough
> water (or does the water absorb the alcohol?) to cause the engine to run
> rough?"  Perhaps if one had some water trapped in the tank then filled 
> with
> mogas containing alcohol (for the first time ever) the water would be
> absorbed.
>
> Ken Jones, kenbjo...@cinci.rr.com
> Sharonville, OH
> N5834, aka The Porkopolis Flying Pig
> KHAO
>
> ----- Original Message -----
> From: "Mark Langford"
>> Here's my question:  Has anybody else had water in their fuel, and if so,
>> is
>> the symptom that the engine cuts in and out rapidly and more or less
>> sputters and scares the crap out of you?  And it comes and goes with no
>> real
>> relation to anything else?  I'm not used to water in the fuel in my cars,
>> so
>> this is a new phenomenon to me!   I can't think of anything else that
>> would
>> cause this, and the real clue is the fuel mixture meter drops into the
>> super
>> lean area while it's misfiring.
>
>
>
> _______________________________________
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>
>
>
> _______________________________________
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