The Ford Barn - Gas evaporating

The Ford Barn (https://www.fordbarn.com/forum/index.php)

- Model A (1928-31) (https://www.fordbarn.com/forum/forumdisplay.php?f=3)

- - Gas evaporating (https://www.fordbarn.com/forum/showthread.php?t=167987)

Willynch

05-04-2015 08:50 PM

Gas evaporating

The gas seems to be evaporating from my 1930 Tudor. I have not found an obvious leak. Garage smells of gas. Gas cap seems ok. I keep the valve closed when not driving. Any ideas?

1955cj5

05-04-2015 08:59 PM

Re: Gas evaporating

My ccpu did that...but the carburetor body was noticeably wet int the mornings, even though I would shut the valve off and run the float bowl dry when I put it away.....

I turned out that the shut-off valve was leaking..just a drop every few seconds, but enough to fill the float bowl overnight and stink up the garage...

I put in a new valve, replaced the float bowl gasket and reset the float to about 1 3/32" on the Tillotson X...

No more problem

Willynch

05-04-2015 09:08 PM

Re: Gas evaporating

I will take a look at the carburetor and float. Good suggestion. Thanks

Tom Wesenberg

05-04-2015 09:39 PM

Re: Gas evaporating

Take a white paper towel and feel the bottom of the carb and the fuel lines for any sign of gas.
Also feel around the steering bracket and shut off valve.

Mitch//pa

05-04-2015 09:42 PM

Re: Gas evaporating

put your finger or as tom metioned a paper towel in the air horn / choke of the carb.
also ck to see if you have stains around the fuel gauge whch was not metioned yet..

MikeK

05-04-2015 09:46 PM

Re: Gas evaporating

Seeping fuel gauge gaskets. Remove the screws and pull the gauge panel forward. Check for signs of fuel leakage. Also check for a leak at the steering column bracket.

Mike V. Florida

05-04-2015 10:05 PM

Re: Gas evaporating

Quote:

Originally Posted by Tom Wesenberg (Post 1080527)

Take a white paper towel and feel the bottom of the carb and the fuel lines for any sign of gas.
Also feel around the steering bracket and shut off valve.

If you are smelling gas you are dripping gas. A blue paper towel will show moisture better then a white as dark blue is easier to see then dark white.

One drip a minute will leave 2 oz. on the floor in a day.

w.michael

05-05-2015 05:16 AM

Re: Gas evaporating

Check the bottom end of the tunnel under the fuel tank (the tunnel that the wires from the terminal box to the instrument panel go through, along with the speedometer cable) to see if it is wet with gas. If your fuel gauge is leaking very much, it will show up here. If the gauge is barely seeping, it may not show up at the bottom of the tunnel, but it will still smell up the interior of the car and the garage.

W. Michael

Willynch

05-05-2015 08:53 PM

Re: Gas evaporating

Gas dripping from bottom of carburetor. Will have to isolate the source

1crosscut

05-05-2015 09:17 PM

Re: Gas evaporating

Gas evaporating?? Maybe not. Could be the neighbor kid sneaking in and siphoning the gas out! :p

All times are GMT -5. The time now is 04:21 PM.