Fuel line issue?

[andreafabietti]

Happy new year!

I know Cessna high-wings are kinda known for having fuel problems, where one tank always seems to empty faster than the other. That's happening to me too, mostly from the right tank.

I've read that the vent wing thing might help, but I'm not sure if I should move it up or down. I have to switch between the left tank and both tanks every hour to keep them from getting too far out of balance. If I just leave it on both, the right tank almost runs dry.

Also, I don't hear any hissing when I open the gas caps, which might mean there's a venting problem.

Any advice?

 

[Tech Admin]

I'm sorry I don't have your answer. I do expect another member that has worked on their plane to pop in and have some information for you.

 

[Raymo]

Happy new year!

I know Cessna high-wings are kinda known for having fuel problems, where one tank always seems to empty faster than the other. That's happening to me too, mostly from the right tank.

I've read that the vent wing thing might help, but I'm not sure if I should move it up or down. I have to switch between the left tank and both tanks every hour to keep them from getting too far out of balance. If I just leave it on both, the right tank almost runs dry.

Also, I don't hear any hissing when I open the gas caps, which might mean there's a venting problem.

Any advice?

You should NOT hear the tank vent/hiss when removing the tank cap. If you do, it would indicate a problem with venting.

One of my customers with a Cessna 150 has to put a stick under his left wing when parked to keep the fuel from flowing to that wing from the right. Those of us that fly low wing aircraft live with the fact that we have to change tanks. My Dynon EFIS reminds me every 4 gallons to switch tanks.


Ray

 

[david hillberg]

make sure the cabin cross over vent line is above tank level, with the vent probe in line with the back of the strut.