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Fuel line antifreeze

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agustafson(at)Chartermi.n
Guest

Posted: Tue Nov 03, 2009 8:10 am Post subject: Fuel line antifreeze

I know that ethanol and isopropyl are 2 different things, but, does having 

ethanol in auto gas prevent water in fuel from freezing like isopropyl does. 

In other words, is there still a need for isoprpyl to prevent fuel line and 

carb bowl icing.

Note, I am aware of the draw backs of any kind of alcohol in aircraft fuel 

so please don't lecture me on that.



Aaron Gustafson

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Tom Jones

Joined: 12 Mar 2006
Posts: 752
Location: Ellensburg, WA

Posted: Tue Nov 03, 2009 6:25 pm Post subject: Re: Fuel line antifreeze

Aaron, I know ethanol will absorb water but I'm not sure if it will prevent it from freezing.  You could put some water in a sample, and put it in the freezer to find out.

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_________________
Tom Jones
Classic IV
503 Rotax, 72 inch Two blade Warp
Ellensburg, WA

Float Flyr

Joined: 19 Jul 2006
Posts: 2704
Location: Campbellton, Newfoundland

Posted: Wed Nov 04, 2009 7:13 am Post subject: Fuel line antifreeze

Isopropyl is used as a dryer in things like brake air lines and fuel for

cars but not close to the concentrations that ethanol is used in gas.  A

small bottle of isopropyl is usually enough to treat several gallons of gas.



I wasn't able to find out if there is a phase separation process with

isopropyl as there is with ethanol but on one occasion I had a considerable

quantity of water in my snowmobile tank.  The isopropyl didn't help at all

and I'm sure I had it mixed at a very high concentration.  The only reason I

even tried the isopropyl is I thought I only had a little water in my tank.

I was wrong.  For much smaller quantities of water in the gas isopropyl has

worked many times by many people.



Ethanol will actually remove moisture form air and unfortunately mix it in

with your gas.  When it gets cold enough there is the possibility that the

ethanol laden with water will phase separate in your fuel tank.  I haven't

found any evidence of this happening with isopropyl.  So to answer your

question ethanol will suspend moisture in your fuel as long as it doesn't

get too cold or too concentrated with water.



Long and short of it is if you get into a situation where you think you have

to use antifreeze a low concentration of isopropyl would probably be better

for your engine than ethanol which will under cooling conditions phase

separate if the water concentration is high enough.



Gee I didn't think I could get through that without mentioning the dangers

of flying with...  



Noel



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Noel Loveys
Kitfox III-A
Aerocet 1100 Floats

Michel

Joined: 10 Jan 2006
Posts: 966
Location: Norway

Posted: Wed Nov 04, 2009 8:01 am Post subject: Fuel line antifreeze

 	  Quote: 	
		   From: Noelloveys [noelloveys(at)yahoo.ca]

 Ethanol will actually remove moisture from air


	


Really Noel? Rats, now I understand why, when I open a bottle of moonshine, I feel so dry in my troath; it dries up the air!



Cheers,

Michel



Do not archive!



<pre><b><font size  color="#000000" face="courier new,courier">

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Kitfox 3 - Jabiru 2200

Float Flyr

Joined: 19 Jul 2006
Posts: 2704
Location: Campbellton, Newfoundland

Posted: Thu Nov 05, 2009 9:56 pm Post subject: Fuel line antifreeze

Michael:



 I hope you are not so brave to drink ethanol!  It is only half as toxic as

Isopropyl.  It will do a lot more than dry out your throat.  Best to stick

to Scotch ... or Rum... or Gin....  or ....



Noel



Oh yes...

Cheers!!!



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Noel Loveys
Kitfox III-A
Aerocet 1100 Floats

Michel

Joined: 10 Jan 2006
Posts: 966
Location: Norway

Posted: Fri Nov 06, 2009 10:43 am Post subject: Fuel line antifreeze

 	  Quote: 	
		   From: Noelloveys [noelloveys(at)yahoo.ca]

  I hope you are not so brave to drink ethanol!


	


.. how do I know what I drink, I am already blind! )



Seriously and regarding soldering: The only place I have it is on the end terminal of the throttle cable of my Jabiru. The end terminal is conic and you open the wires of the cable into the cone and fill it with solder. 



Cheers,

Michel Verheughe

Kitfox 3 - Jabiru 2200



Do not archive



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Kitfox 3 - Jabiru 2200

Float Flyr

Joined: 19 Jul 2006
Posts: 2704
Location: Campbellton, Newfoundland

Posted: Sun Nov 08, 2009 7:37 am Post subject: Fuel line antifreeze

Got me! Both times...  I never ask what I'm drinking.  My answer is,

"whatever you're serving"  One of these days I'll get a full serving of

hemlock.



Solder I was talking about was basically electrical soldering on copper

wires... I never thought of using it on mechanical parts like throttle

cables.



Noel



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Noel Loveys
Kitfox III-A
Aerocet 1100 Floats

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