Advertisement
FORD MODEL
A
FUEL
SYSTEM
Gasoline Tank
The gasoline
is carried in a ten-gallon
tank welded integral
with the cowl of the car.
From
this tank the
gasoline
flows
by
gravity to the carburetor,
where
it is mixed with air and drawn
into the cylinders by piston suction.
A sediment
bulb located on the engine side of the dash, is
i:,rovided for draining
off water or sediment
that
may have
accumulated
in the tank.
Occasionally
draining
the bulb pre-
vents
foreign material being drawn into the carburetor.
The Carburetor
The
quanti
y
of gasoline
entering
into
the carburetor
is
governed by the float. The volume of gas mixture
entering
the
intake
manifold
is controlled
by opening
and closing
the
throttle,
according
o the speed desired by the driver. Since,
with the exception of the needle valve and idle adjus ment all
of the carburetor
adjustments
are
fixed, about the only thing
that could affect
the carburetor
would
be dirt or water getting
into it. An occasional
cleaning will insure unin errupted
ser•
vice.
To
clean the carburetor,
remove the filter screen and thor-
oughly clean the screen by washing
it
in gasoline. The screen
is easily removed by backing out the filter plug (see Fig. 12).
l t is also a good plan to occasionally
remove the drain plug at
the bottom of the carburetor
and drain the carburetor
for a few
secoAds.
Regulating
Gasoline Mirture
For economical driving, reduce the quantity
of gasoline in the
mixture
y
turning
the adjusting
rod to the right as
far
as
possible without affecting the operation
of the engine. This is
particularly
true when taking
long drives where conditions
permit a fair rate of speed being maintained,
and
accounts
for
the excellent gasoline mileage obtained
by
good drivers.
Turning the carburetor
adjustment
too far to lhe left results
in a 'rich
mix ure." Such a mixture has too much gasoline and
should be used for starting and warming up only. Running with
too rich a mixture
causes excessive carbon and overheating,
likewise i wastes fuel.
Advertisement
