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E85 tank stopper?

Old 11-10-2010, 12:55 PM
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KidEpoxy
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Default E85 tank stopper?

Which tank stopper should be used with E85,
a 'gas' one, or the regular 'glow' one the tank came with?

I was using a syringe to fuel up the tank with E85, and the lil bit of gasoline in the fuel did a number on the black syringe piston. It is simple enough to put the yellow gas-proof lines on (and in) the tank, but what about the stopper? I have a 'gas' one to put on, but I was told the gas one dont like alcohol as much as the glow one dont like gas.

Old 11-10-2010, 02:41 PM
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Default RE: E85 tank stopper?

Maybe make your own from cork?  Tygon is resistant to both.  Do they make Tygon stoppers?
Old 11-10-2010, 08:05 PM
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gkamysz
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Default RE: E85 tank stopper?

The gasoline stopper works. Expect the Tygon fuel line to go stiff in a year or two. This is what I experienced.
Old 11-10-2010, 10:43 PM
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Default RE: E85 tank stopper?

I can live with replacing the lines every year if they stiffen,
I just didnt want to be flying and have a critical fuel supply failure in a few weekends
Old 11-11-2010, 07:58 AM
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Default RE: E85 tank stopper?

You could also use a Hayes tank which does not have a rubber expansion stopper but a hard plastic plug with an O ring. It also uses a neoprene clunk line which does not harden as dramatically as tygon.

The tank does work fine with gasolene or glow.

John

http://www3.towerhobbies.com/cgi-bin...&I=LXK836&P=RF
Old 11-11-2010, 08:34 AM
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Default RE: E85 tank stopper?

The gas stopper has been working for me. I have been running E85 in my Super Tigres for 3 seasons now. Also have discovered a new Tygon that is softer and lasts longer than the older stuff at McMaster-Carr. I use silicone about 2-3 inches on the muffler as Tygon doesn't take the heat. Tygon from the tank pressure fitting to withing about 2-3 inches from the muffler and the rest of the way to muffler with silicone.
Old 11-11-2010, 11:32 PM
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Default RE: E85 tank stopper?

Thanx for the heads up on the muffler heat situation,
will splice in silicone last few inches to muffler tap

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