Glossary “flywheel flange” Definition:
The flat surface on the rear of the engine crankshaft to which the flywheel or flex plated is bolted.
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flywheel ring gear
Glossary “flywheel ring gear” Definition:
A gear, fitted around the flywheel, that is engaged by teeth on the starting-motor drive to crank the engine.
FM
Glossary “FM” Definition:
Frequency Modulation, or Fan Monitor
flux density
Glossary “flux density” Definition:
The number of flux lines per square centermeter measured 1 centimeter from the center of the magnet
flux lines
Glossary “flux lines” Definition:
Also called maxwells, the lines of magnetic force
flyweight governor
Glossary “flyweight governor” Definition:
Governor assembly, sensitive to centrifugal force, whose action is controlled by primary and secondary weights, causing them to change their postion as shaft increases or decreases.
flushing hydraulic system
Glossary “flushing hydraulic system” Definition:
Procedure for replacing old brake fluid with new fluid.
flutter
Glossary “flutter” Definition:
Condition where the valve is not held tightly on its seat during the time the cam is not lifting.
flux
Glossary “flux” Definition:
Material to dissolve and prevent the formation of oxides in molten metal and solid metal surfaces; a wetting agent that facilitates the banding of a filler metal. Electric or magnetic lines of force in motion that create a magnetic field. The location and strength of the line of force determine the shape and size of the magnetic field.
flux cored wire
Glossary “flux cored wire” Definition:
Type of welding wire having a central core of flux that creates a shielding gas when heated.
flushing
Glossary “flushing” Definition:
Term used for various acts of cleaning a system, such as brake flushing.
flushing agent
Glossary “flushing agent” Definition:
Approved liquid or gas used to flush a system.
fluorescent light
Glossary “fluorescent light” Definition:
The emitting of visible light from a tubular electric lamp having a coating of fluorescent material on its inner surface and containing mercury vapor whose bombardment by electrons from the cathode provides ultraviolet light.
fluorine clearcoat
Glossary “fluorine clearcoat” Definition:
Used to improve resistance to UV radiation. It protects from weathering, chalking, oxidation, and industrial fallout. Improves the luster of the finish and reduces required maintenance, such as waxing and polishing.
fluorocarbon
Glossary “fluorocarbon” Definition:
Group of chlorofluorocarbon refrigerants, such as R-12.
flush
Glossary “flush” Definition:
1). To use a fluid to remove solid and semisolid particles such as metal flakes or dirt. 2). To purge refrigerant passages with a clean flushing agent. 3) To flush a brake hydraulic system with clean brake fluid to remove contaminates.
fluid nozzle
Glossary “fluid nozzle” Definition:
Part of the spray gun; it forms an internal seat for the fluid needle.
fluid ounce
Glossary “fluid ounce” Definition:
Volumetric unit. 16 fluid ounces is equal to one pint, 128 fluid ounces is equal to one US gallon.
fluid pressure
Glossary “fluid pressure” Definition:
Pressure of a fluid that is uniform in all directions.
fluorescent
Glossary “fluorescent” Definition:
Having the property of giving off light when bombarded by electrons or radiant energy.