rhowardsta

What do you suggest to stop a tank from siphoning my carb ful of fuel ? The eaziest way I know is to lower the location of the tank,but due to the design of the plane it is not possible without compromising the integrity of the aircraft.

Thanks,
Ray

Villa

I have two planes with that problem. After I fill the tank I put a spring clip on the fuel line to the carb. When I'm ready to fly I remove the clip and start the engine.

Flying freak

How bigs the plane can you get a regulator in?

MinnFlyer

My Feedback: (4)

A pair of Hemostats works nicely

rhowardsta

It is a warbird, unfortunatly it has a cowl and I can't get to the fuel line to crimp it off. I have plenty of room for some kind of regulator. What do you suggest flying freak ? Thanks for the suggestions !

Ray

rhowardsta

Looks like cline & associates gonna get me fixed up ! anyone ever use one of these ? if so is it true you need a check valve on your pressure line ?

bob_nj

My Feedback: (62)

The check valve goes in the line out of the crankcase, which goes to the tank.
The regulator unit acts as a check valve in that it doesn't let fuel in the carb.

You do have to remember to relieve the pressure after flying.
The units are supplied with a "T" that would go between the tank and the regulator.
This is where the pressure is relieved.

It is a regulator, and not a pump, and works extremely well.
You should be able to pull the line off of the carb with the engine running, and no fuel will come out.

Good luck!

Bob

Semi Retired Aviator

I had that problem with a CAP-232 a while back. I just put a loop in the fuel line with the top of the loop just a touch higher than the top of the fuel tank, and had no more siphoning problems. I epoxied a 6 mm dowel across the engine mounts and looped the fuel line over that to stop it falling down and having the same problem.

Some guys will tell you that muffler pressure won't push fuel through, but it worked fine, and I've since put that arrangement in an F4U Corsair. It's simple, cheap and works. What more could you want.

Zippi

My Feedback: (10)

rhowardsta,

What I do is install a Dubro Kwik-Fill Fueling Valve. When I'm not flying I keep the end that fits into the valve plugged in and that stops the flow of fuel to the carb.


http://www3.towerhobbies.com/cgi-bin...?&I=LXD745&P=7

BillyGoat

Ditto Semi Retired Aviator's sugestion putting a loop in line. The dowel idea is a good one... I used zip ties to keep my loop in place.

1rcaddict

It might seem simplistic but I was having that problem with my U CAN DO 60 and all I did was reroute the fuel line up and over the mount, that way the high point of the fuel line is above the tank and carb. Hope it helps.