Re: 1929 640 fuel running out of the carburetor

Posted by fred kanter On 2011/3/2 21:09:41

There is a unit on the firewall which is called the vacuum tank. It is not a reserve tank. Engine vacuum is used to pull fuel form the gas tank in the back of the car into the vacuum tank, when the vacuum tank is up to the correct level a float shuts off the vacuum so no more fuel is pulled into it. The fuel in the vacuum tank flows down into the carburetor by gravity whence the fuoel bowl f the carburetor is filled to the correct level, the carb float rises and then shuts off the carburetor needle valve when the correct fuel level is reached.

You did not state, but I am assuming there is not a non-original electric fuel pump in the system.

You say that fuel is leaking from the carburetor. Where exactly?? AT the inlet fitting? From the edge of the fuel bowl?? From the Carburetor inlet? While running? While stopped ?

Please advise.