DEFINITION OF TERMS-CONTINUED
Force. The action that one body may exert upon another
the fuel nozzles.
to change its motion or shape.
Fuel Pump. The mechanism in the fuel system that
Four-Stroke-Cycle Engine. An engine that requires four
transfers fuel from the fuel tank to the carburetor.
piston strokes (intake, compression, power, exhaust) to
make the complete cycle of events in the engine cylinder.
Fuel Tank. The storage tank for fuel on the vehicle.
Frame. An assembly of metal structural parts and
Fulcrum. The support, as a wedge-shaped piece or a
channel sections that support the engine and body and
hinge, about which a lever turns.
that is supported by the vehicle wheels.
Full-Floating Axle. An axle that is designed only to
Free Electrons. Electrons in outer orbits of an atom that
deliver power to the wheel. Vehicle weight and wheel
are easily moved out of orbit.
retaining are accomplished by other members.
A gas used in air conditioning and
Full Trailer. An independent and fully contained vehicle
without motive power.
The number of vibrations, cycles, or
Fuse. A circuit-protecting device that makes use of a
changes in direction in a unit of time.
substance that has a low melting point. The substance
melts if an overload occurs, thus protecting other devices
in the system.
contact with each other.
Fusible Link. A length of special wire inserted in a circuit
Friction Bearing. A bearing having no moving parts. The
to protect against excessive current draw.
shaft that rotates simply rubs against or rides on a thin
film of oil between the bearing and shaft.
Gasket. A flat strip, usually of cork or metal, or both,
placed between two surfaces to provide a tight seal
Fuel. The substance that is burned to produce heat and
create motion of the piston on the power stroke in an
Gasoline. A hydrocarbon, obtained from petroleum, that
is suitable as an internal combustion engine fuel.
Fuel Filter. A device placed in the fuel line of the fuel
system to remove dirt and other harmful solids.
Gear Ratio. The relative speeds at which two gears turn;
the proportional rate of rotation.
Fuel Gage. An indicating device in the fuel system that
indicates the amount of fuel in the fuel tank.
Gears. Mechanical devices to transmit power or turning
effort, from one shaft to another; more specifically, gears
Fuel Injection. A fuel delivery system that sprays fuel
that contain teeth that engage or mesh upon turning.
either directly into cylinders or into the intake manifold
just ahead of the cylinders.
Gearshift. A mechanism by which the gears in a
transmission system are engaged.
Fuel Line. The tube or tubes connecting the fuel tank
and the carburetor and through which the fuel passes.
Generator. In the electrical system, the device that
changes mechanical energy to electrical energy for
Fuel Passage. Drilled holes in the carburetor body and
lighting lights, charging the battery, etc.
tubes through which fuel passes from the float bowl to