How the Rochester H & HV, 1 Barrel Carburetor Float Works?

The Model H carburetor employs the conventional
float needle and seat to control fuel level in
the float bowl. In accordance with the balanced float
bowl design . dual floats are used to maintain a constant
fuel level throughout all operating ranges.
The float bowl is designed so that the fuel is
centrally located around and as close to the venturi
a rea as possible . so that efficient carburetor metering
may be maintained under all engine operating conditions.
Fuel entering the carburetor must first pass
through the inlet filter located behind the fuel inlet
nut. The fuel filter is cylindrical in shape and is held
in place against the fuel inlet nut by a small pressure
relief spring. The filter element can be easily removed
for periodic cleaning by removing the fuel
inlet line and nut. If the filter should become clogged
a t any time, fuel flow will not be restricted because
the filter element will be pushed off its seat, against
the pressure relief spring, allowing fuel to temporarily
by-pass the filter element. A small fibre gasket
seals the fuel filter element against the inside of the
fuel inlet nut .