KidEpoxy

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.

Sport_Pilot

Maybe make your own from cork?  Tygon is resistant to both.  Do they make Tygon stoppers?

gkamysz

My Feedback: (19)

The gasoline stopper works. Expect the Tygon fuel line to go stiff in a year or two. This is what I experienced.

KidEpoxy

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

JohnBuckner

My Feedback: (1)

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

the mother of invention

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.

KidEpoxy

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