All fuel enters the fuel bowl through the fuel inlet fitting in the carburetor body. The viton tipped fuel inlet needle seats directly in the fuel inlet fitting. The needle is retained by a cap that permits the fuel to flow out of holes in the side of the cap. The design of the fuel bowl eliminates the neccesity of a fuel baffle. The fuel inlet needle is controlled by a dual lung nitrophyl float (a closed cellular buoyant material wich cannot collapse or leak) and a stainless steel float lever which is hinged by a stainless steel float shaft.

Our replacement floats are made of brass.

The fuel inlet system must constantly maintain the specified level of fuel as the basic fuel metering systems are calibrated to deliver the proper mixture only when the fuel is at this level. When the fuel level in the bowl drops, the float also drops, permitting additional fuel to flow past the fuel inlet needle into the bowl. The float chamber is vented internally into the air horn. In some Econoline applications, a vent tube may release fuel vapors through a tube in the bottom of the engine compartment.