Technical Electric Fuel Stop

So I have a problem with a model A I recently acquired. The fuel tank is upright behind the rear seat in a 31 Tudor with a mild rake. I noticed that the fuel is gravity feeding to the carb when it is parked. The electric fuel pump doesn't hold back the fuel so if the carb leaks it fills up the crank case with gasoline. (blown power valve on a holley.) Is there a residual pressure type valve or an electric shut of valve available or should I install a manual pet**** inline. Has anyone else had a similar problem and what did you do.Thanks Jack

 

you need a new needle and seat.

 

Install one of these it will open when you turn on the key and close when you shut the key off
Be sure it's N/C (normally closed)
https://www.amazon.com/Akent-Electr...fkmr3&keywords=1/4+'+solinoid+n/c+12+volt+wog

 

thanks SD, I think that's what I need to do. I can't trust a whole bunch of gallons of gas and gravity to a needle and seat.

 

The fuel shut off valve in a dual fuel (LPG) vehicle is what you want, looks the same as the unit above, but has a manual byp*** tap if needed..

 

Would any one have a brand name and part # for the part inthweedz refers to ?

 

Get some: https://www.amazon.com/Impco-Fl-30639-Propane-Natural-Solenoid/dp/B00EP1R13O

 

Blown power valve won't cause that. It can cause it to be rich while it is running. You have a float and or a needle and seat problem.

Sent from my Moto G Play using The H.A.M.B. mobile app

 

The general aviation world has lots of shutoff valves for fuel. When I was working at restoring Luscombe airplanes, we sold a lot of the valves. A quarter turn and the valve was either open or closed.

 

Hey desotot, do a search on evilbay, '' 12v lpg fuel shutoff solenoid'' they are listed there..

 

Thanks guys, I called a local propane conversion shop and they have the valves in stock so I will grab one today. I changed out the carb for a new one but I won't trust a needle and seat to a gravity feed fuel system. Unless I build a custom intake and use 8 updraft carbs.

 

A small bonus for a manually operated shutoff is that it may foil a theft attempt.

 

My Ford 9N tractor has a manual fuel valve on it. 2 Turns and it runs off the primary fuel. 5 turns and it runs off the reserve fuel.

 

Nitrous oxide systems guys sell them. A great theft device too.