Fuel Gauge

[Ragwing nut]

Univaire guage works great, but won't quite rest on bottom of tank when you push the wiire all the way down. Probably lacks about 2" from touching. anyone know how much gas is still in tank when wire guage rests on cap?
t

It doesn't go all the way to the bottom. Its suppose to bottom out with roughly 3 gal, or 45 min reserve.

[3Dreaming]

Univaire guage works great, but won't quite rest on bottom of tank when you push the wiire all the way down. Probably lacks about 2" from touching. anyone know how much gas is still in tank when wire guage rests on cap?
t

That is something you need to figure out for your airplane. I was flying a somewhat unfamiliar airplane a while back. We flew until the wire was where I was used to seeing it in the airplane I normally fly. The engine quit on landing roll out, and wouldn't restart. We pushed the airplane in, and stopped at the fuel pump, it needed fuel before the next flight anyway. once we had some fuel back in it started right up. I have heard accounts from a Cub owner who was flying someone else's airplane. The moral is you need to know the airplane you are flying. I would prop the airplane up in level flight attitude, and drain fuel until the wire is just all the way down, then measure how much fuel is left. Then plan your flight accordingly.

[M Towsley]

Tim, mine never sinks, same synthetic material on mine.

Lee, some set them up to have 1/2 hour, (2 gallons), of gas when the wire hits the top in level flight.

[Robert Lees]

Better to have it that way

[Leenicklas]

Univaire guage works great, but won't quite rest on bottom of tank when you push the wiire all the way down. Probably lacks about 2" from touching. anyone know how much gas is still in tank when wire guage rests on cap?
t

[astjp2]

Worth every penny, doesnt sink. Watching one sink will make you stink your pants!

[M Towsley]

Yikes! $150 for a cap, wire and synthetic cork? Not exact for the T-Craft purist but better than some of the offerings. Braze a couple of tabs,stamp them and pretty darn close.

https://www.univair.com/piper/piper-j-3/view-all/u71041-000-piper-fuel-gauge-assembly/

[astjp2]

Nice, isn't it? One of the better finds for a real replacement part for our aircraft...Tim

[Leenicklas]

I bot the Univair J-3 unit and it works perfectly. thanks for the tip.

[astjp2]

I had the wag, junk, 5 different ones from them have failed, 2 from me, 3 from customers. Get a Univair J3 unit, it is a black plastic looking float that doesnt fail and fits perfectly and is the correct length. It also doesnt stick. Tim

[Leenicklas]

My problam is just the opposite. I have a new "cork" -- neoprene-- from Wag Aero, and it wants to rest on bottom of tank. It is hard for me to believe that the rod is too heavy. ??????? I'm using an old original '46 BC12-D gas cap.

[Scott]

I like that idea
thanks Marty

[M Towsley]

I utilize synthetic cork, (got it from the Model A online catalog), takes two of them stacked. Works great and may have a little more weight than cork. Never have to worry about degradation. https://www.snydersantiqueauto.com/gauge-float-only

[3Dreaming]

(my snip)

I'm lost as to what this means, McRay7ac, are these places? Or possible finger trouble?

Rob

My guess places. Huntsville, TX and Llano, TX 158.4 nautical miles apart.

[Robert Lees]

... uts to aqo ...

(my snip)

I'm lost as to what this means, McRay7ac, are these places? Or possible finger trouble?

Rob