Friday, 13 April 2012

AUTOMOBILE DICTIONARY (A-G)


Fuel
  1. Any material substance that can be consumed to supply heat or power. Included are petroleum (gasoline and diesel), coal, and natural gas (CNG, LPG), and other consumable materials, such as uranium, biomass, and hydrogen.
  2. A material used to create heat or power through chemical conversion in processes such as burning or electrochemistry.
  3. A combustible material used to produce energy. One of the essential factors in a Combustion engine(Fuel, Air, Proper proportion of mixture, compression, timing, spark).
See
Fuel accumulator
  1. A device in the K-Jetronicfuel injection system which serves to absorb the initial pressure surge when afuel pump starts
  2. A diaphragm unit which helps maintain residual fuel pressure for hot starting on CIS type fuel system
Fuel additive
A chemical preparation which is added to fuel to improve and maintain its properties. Detergents and corrosion inhibitors are examples of gasoline additives.
Fuel advance system
Advances fuel delivery during cold starts on GM vehicle. Consists of a thermal-sensitive Solenoid on the intake manifold which sends a signal to the HPCA terminal, which opens a ball-check valve on top of the injection pump housing. With pump housing pressure reduced, the timing mechanism has less resistance to overcome and operates earlier, advancing fuel delivery 3 degrees
Fuel air mixture
See
Fuel-air mixture
  1. A combination of Vaporized fuel and air which is brought into the cylinder through the carburetor or fuel injectors. When it is compressed and ignited, it produces the power needed to drive the engine.
  2. A mist consisting of fuel and air that's compressed in the cylinders and ignited to drive the pistons in a car's engine.
Fuel air ratio
See
Fuel-air ratio
The amount of fuel in comparison with the amount of air. This is the reciprocal of the air-fuel ratio.
Fuel Bowl
See
Fuel Bowl Vent
See
Fuel burner
Competition vehicle with an engine set up to burn alcohol, nitro, etc. mixture instead of standard pump gasoline. Also called fueller.
Fuel cap
Fuel cap
Fuel cap
A vented covering on the top of the tube leading to the fuel tank. Also called gas cap.
Fuel cell
  1. A galvanic cell in which the oxidation of a fuel (e.g., methanol) is used to produce electricity.
  2. A cell that converts chemical energy directly into electric energy, with electric power being produced as part of a chemical reaction between the electrolyte and a fuel such as kerosene or industrial fuel gas.
  3. An electrochemical power plant (no moving parts) that creates electrical current from hydrogen and oxygen that is passed over a catalyst, usually a microscopically thin sheet of platinum. The electrical current is then fed directly to an electric motor for propulsion. Fuel cells differ from conventional electrical cells in that the active materials such as fuel and oxygen are not contained within the cell but are supplied from outside. It does not contain an intermediate heat cycle, as do most other electrical generation techniques. The only by product of a fuel cell's operation is water, which is pure enough to drink. These cells were first used by NASA in the 1960's for power generation in space capsules. The high price of fuel cell technology has limited the growth of their implementation, but now cells are being used to generate power in hospitals, and to propel vehicles.
See
Fuel charge
The air/fuel mixture delivered to the combustion chamber
Fuel cock
A tap which can allow or restrict the flow of gasoline from the gas tank to the carburetor. An essential item on a motorcycle with gravity fed fuel (i.e., no fuel pump) because if the fuel cock is left on after the engine is shut down, there is the possibility that gasoline could leak past the Needle and seat in the carburetor so that the overflow in the float bowl will make its way into the cylinder and wash the walls and dilute the oil
Fuel computer
A device which continuously displays the amount of fuel used over the distance since last set.
Fuel consumption
The amount of fuel used, expressed in miles per gallon in Britain and the USA, whereas the international measure is litres per 100 kilometres. The US term is fuel mileage.
See
Fuel consumption indicator
An instrument using a Flowmeter to indicate mpg or litres/100 km at any given moment on a journey
Fuel Control
Device designed to regulate the fuel supply to the controlled equipment. These may be manual, semi-automatic or automatic.
See
Fuel cut-off
See
Fuel cut-off switch
A control device which manually or automatically turns off the flow of fuel.
See
Fuel cycle
The entire set of sequential processes or stages involved in the utilization of fuel, including extraction in its native form, transformation (converting it to a useful product), transportation to market, and combustion (i.e., consuming it at its final destination). Emissions generally occur at each stage of the fuel cycle.
Fuel distributor
  1. A device constituting the mixture control unit together with the airflow sensor.
  2. On Bosch CIS, the device that supplies the injection with pressurized fuel in proportion to air volume, measured by the airflow sensor plate. The fuel distributor houses the control plunger and the differential-pressure valves. All fuel metering takes place inside the fuel distributor
  3. The component which feeds fuel to the individual engine cylinders corresponding to the air flow rate metered by the air flow sensor on CIS system
Fuel economy
The number of litres used per 100 kilometres of driving (a lower number is better); or the number of miles driven divided by the number of gallons used (a higher number is better).
See
Fuel efficiency
Although this factor is similar to fuel economy, it differs in that fuel efficiency involves getting the most amount of energy from an amount of fuel. It answers the question, 'What percent of the fuel does this engine burn?'
Fuel ethanol
(C2H5OH) An anhydrous alcohol (ethanol with less than 1% water) intended for gasoline blending as described in the Oxygenates definition.
Fuel evaporation
See
Fuel Expenditure
See
Fuel filler flap
A piece of rubber about 4' square and very thin, which is located behind the filler door. When the door is opened, the flap falls down to protect the body from the fuel nozzle.
Fuel filler neck
The upper end of the fuel filler tube leading down to the fuel tank, which accepts the fuel hose nozzle at theGas station
Fuel filler tube
The tube leading down to the fuel tank
Fuel filter
Fuel filter
Fuel filter
A device that removes impurities (dirt and water) from the fuel before it gets to thecarburetor or injection system. Filters may be made of metal or plastic screen, paper, or gauze. They are usually found near the carburetor in the fuel line that comes from the fuel pump (in-line fuel filter), or inside the carburetor (integral fuel filter) or within the fuel pump or fuel tank. These units must be cleaned or replaced on a regular basis, usually once a year or they will become clogged and restrict fuel to the carburetor. Without a filter, the jets and orifices in the carburetor will become clogged.
Fuel gage
See
Fuel gas compressor
A pump or machine for reducing the volume and increasing the pressure of fuel gas.
Fuel gauge
An instrument, usually located on the dashboard or center console, which indicates the amount of fuel in thefuel tank. Most gauges have a Needle which fluctuates between E (empty) and F (full). Others show a digital readout of how many gallons or litres left in the tank. Also called gas gauge.
Fuel Heater
See
Fuel Heating
See
Fuelie
Colloquial term for a fuel-injected vehicle.
Fuel indicator
See
Fueling Facility
See
Fuel-injected engine
A gasoline engine with a fuel injection system rather than a carburetor.
Fuel injection
Fuel Injection System
Fuel Injection System
(FI) A fuel system that uses no carburetor but sprays fuel either directly into the cylinders or into the intake manifold just ahead of the cylinders. It uses an electronic sensing device to deliver the correct amount into the combustion chamber.Throttle-body injection locates the injector(s) centrally in the throttle-body housing, while Port injection allocates at least one injector for each cylinder near its Intake port.
See
Fuel injection engine
A gasoline engine with a fuel injection system
Fuel injection pump
  1. A pump which receives fuel from the fuel tank (often through the fuel-feed pump in the case of diesel engines) and delivers it under pressure to the injectors
  2. A pump on diesel engines that sends fuel to its mini-pumps, and from there to the fuel injector nozzles.
Fuel-injection system test port
See
Fuel injector
Fuel injector
Fuel injector
  1. A special nozzle which sprays the proper amount of gasoline or diesel fuel into the inlet ports, either directly into the combustion chamber or into a pre-chamber in response to signals from an electronic sensing device.
  2. In all fuel-injection system (except Bosch CIS, CIS/Lambda, and CIS-E systems), a spring loaded, Solenoid (electromagnetic) valve which delivers fuel into the intake manifold, in response to electrical signals from the control module in the CIS, etc. System, the injector is simply a spring-loaded, pressure sensitive valve which opens at a preset value
See
Fuel injector nozzle
The device that works like a hypodermic Needle to inject the proper amount of fuel into the combustion chamber in response to signals from an electronic sensing device on cars with fuel injection systems. It receive fuel at low pressure and shoot it into the engine cylinders at predetermined intervals under higher pressure. Also called fuel injector valve or just fuel injector.
Fuel injector valve
See
Fuel Inlet
See
Fuel knock
See
Fueller
See
Fuel level gauge
An instrument gauge that indicates how much fuel is in the fuel tank.
Fuel line
The metal, plastic, or rubber hose or pipe through which the fuel passes from the fuel tank to the fuel pump to the carburetor or fuel injector nozzle.
Fuel metering sensor
Fuel metering sensor
Fuel metering sensor
A motor detection device on a carburetor which closes or opens a fuel-metering port to regulate fuel mixture, keeping the air-fuel ratio at exactly 14.61 (stoichiometric) at all times.
Fuel mileage
A measurement or calculation of the number of miles per amount of fuel -- usually measured in miles per gallon.
Fuel mixture
A mixture of gasoline and air. An average mixture, by weight, would contain 16 parts of air to one part ofgasoline.
Fuel oil
  1. Kerosene or any hydrocarbon oil as specified by U.S. Department of Commerce Commercial Standard CS1 2 or ASTM D296, or the Canadian Government Specification Board, 3-GP-28, and having a flash point not less than 38°C.
  2. A liquid petroleum product less volatile than gasoline, used as an energy source. Fuel oil includes distillate fuel oil (No. 1, No. 2, and No. 4), and residual fuel oil (No. 5 and No. 6).
  3. The heavy distillates from the oil refining process; used as fuel for power stations and marine boilers.
See
Fuel oil types
There are several designated types of fuel oil such as:
  1. No. 1 diesel fuel: A light distillate fuel oil that has a distillation temperature of 288°C at the 90-percent recovery point and meets the specifications defined in ASTM Specification D 975. It is used in high speed diesel engines generally operated under frequent speed and load changes, such as those in city buses and similar vehicles. See No. 1 distillate below.
  2. No. 1 distillate: A light petroleum distillate that can be used as either a diesel fuel: (see No. 1 diesel fuel above) or a fuel oil: (see No. 1 fuel oil: (below).
  3. No. 1 fuel oil: A light distillate fuel oil that has distillation temperatures of 204°C at the 10-percent recovery point and 288°C at the 90-percent recovery point and meets the specifications defined in ASTM Specification D 396. It is used primarily as fuel for portable outdoor stoves and portable outdoor heaters. See No. 1 Distillate above.
  4. No. 2 diesel fuel: A distillate fuel oil that has a distillation temperature of 338°C at the 90-percent recovery point and meets the specifications defined in ASTM Specification D 975. It is used in high-speed diesel engines that are generally operated under uniform speed and load conditions, such as those in railroad locomotives, trucks, and automobiles. See No. 2 Distillate below.
  5. No. 2 distillate: A petroleum distillate that can be used as either a diesel fuel: (see No. 2 diesel fuel above) or a fuel oil: (see No. 2 fuel oil below).
  6. No. 2 fuel oil: (heating oil) A distillate fuel oil that has a distillation temperature of 338°C at the 90-percent recovery point and meets the specifications defined in ASTM Specification D 396. It is used in atomizing type burners for domestic heating or for moderate capacity commercial/industrial burner units. See No. 2 Distillate above.
  7. No. 2 fuel oil and No. 2 diesel sold to consumers for all other end uses: Those consumers who purchase fuel oil or diesel fuel for their own use including: commercial/institutional buildings: (including apartment buildings), manufacturing and nonmanufacturing establishments, farms: (including farm houses), motor vehicles, commercial or private boats, military, governments, electric utilities, railroads, construction, logging or any other nonresidential end-use purpose.
  8. No. 2 fuel oil sold to private homes for heating: Private household customers who purchase fuel oil for the specific purpose of heating their home, water heating, cooking, etc., excluding farm houses, farming and apartment buildings.
  9. No. 4 fuel oil: A distillate fuel oil made by blending distillate fuel oil and residual fuel oil stocks. It conforms with ASTM Specification D 396 or Federal Specification VV-F-815C and is used extensively in industrial plants and in commercial burner installations that are not equipped with preheating facilities. It also includes No. 4 diesel fuel used for low- and medium-speed diesel engines and conforms to ASTM Specification D 975.
  10. No. 5 and no. 6 fuel oil sold directly to the ultimate consumer: Includes ships, mines, smelters, manufacturing plants, electric utilities, drilling, railroad.
  11. No. 5 and no. 6 fuel oil sold to refiners or other dealers who will resale the product: Includes all volumes of No. 5 and No. 6 fuel oil purchased by a trade or business with the intent of reselling the product to the ultimate consumers.
Fuel petcock
An on-off valve located at the bottom of a motorcycle fuel tank. It may have a filter screen and sediment bowl and sometimes provides a reserve fuel supply.
Fuel pressure
The pressure under which fuel is delivered to the injectors by the fuel pump, governed by the pressure regulator
Fuel pressure regulator
Fuel pressure regulator
Fuel pressure regulator
A spring-loaded pressure-activated diaphragm valve that maintains the pressure in a fuel system to a pre-set value above manifold pressure, particularly in a fuel injection system and meters unused fuel back to the fuel tank.
Fuel pump
A vacuum device, operated either mechanically or electrically, that is used to draw gasoline from the tank and sends it into the carburetor or fuel injector nozzles. Mechanical pumps have a Rocker arm that is activated by a cam on the camshaft; the arm causes a diaphragm to move up and down, thus pulling the gas through the pump. Some electrical pumps have a rocker arm which is activated electrically and does the same thing as the mechanical pump. Other electrical pumps are located at the bottom of the fuel tank and push the fuel through the fuel lines.
See
Fuel pump filter
  1. VW Fuel pump filter
    VW Fuel pump filter
     A filter screen built into the fuel pump itself as used on VW Beetles with a mechanical fuel pump.
  2. screw-on fuel pump filter
    screw-on fuel pump filter
     A screw-on canister holding a replaceable pleated paper filter. The canister is mounted onto the base of a fuel pump
Fuel pump relay
An electric switch which activates the fuel pump when the engine is cranked and when the engine is running.
Fuel pump shut-off switch
A switch which shuts off the electric fuel pump and fuel to the engine in the event of a major collision
Fuel pump switch
A switch which shuts off the electric fuel pump and fuel to the engine in the event of a major collision
Fuel rail
A manifold tube feeding the injectors in a fuel injection system. A special manifold designed to provide a large reservoir of pressurized fuel for the fuel injectors, which are attached between the rail and the intake runners or the cylinder head. The fuel rail also serves as a mounting place for the fuel damper (if equipped) and the fuel pressure regulator
Fuel rail assembly
A hollow pipe that supplies fuel to the set of fuel injectors connected to it.
Fuel return line
A pipe returning surplus fuel to the tank from the carburetor(s) or to the inlet side of the injector pump
Fuels solvent deasphalting
A refining process for removing asphalt compounds from petroleum fractions, such as reduced crude oil. The recovered stream from this process is used to produce fuel products.
Fuel stabilizer
A chemical which is added to gasoline to prevent it from becoming stale. Gasoline, diesel, or heating fuel reacts with oxygen in the atmosphere and leave behind a varnish-like film or gum residue. While some fuel contains an oxidation inhibitor which allows it to be stored for up to three months, other fuels don't have this inhibitor. Stale gasoline can clog fuel lines, carburetors, and injectors. A good fuel stabilizer can lengthen fuel's useful life.
Fuel starvation
The failure of the fuel system to supply sufficient fuel to allow the engine to run properly, due to a blockage or vapor lock or malfunction of the fuel pump.
Fuel supply
The delivery of fuel to the carburetor or injection system
Fuel Supply Center
See
Fuel system
A system that stores, cleans, and delivers the fuel to the engine in proper quantities to meet the varying needs that arise as you drive. It is made up of the fuel tank, fuel lines, fuel pump, fuel filter, and carburetor or thefuel injection system.
See
Fuel tank
Fuel tank
Fuel tank
The storage compartment, under the trunk in most cars, that holds the fuel for the vehicle. Also called the gas tank.
Fuel tank sender
A level sensor in the gas tank which sends information about the amount of remaining fuel.
Fuel tank vapor valve
A valve mounted in the top of the fuel tank. Vents excess vapor and pressure from the fuel tank into the evaporative emission control system
Fuel transfer pump
A pump that transfers fuel from the tank to the engine.
Fuel Trim
An OBD term referring to feedback adjustments to the base fuel schedule.
See
Fuel utilization
In fuel cells, the fraction of the fuel or oxidant that enters the cell that reacts electrochemically.
Fuel-vacuum separator
Used to filter waxy hydrocarbons from the carburetor ported vacuum to protect the vacuum delay and distributor vacuum controls
Fuel vapor
  1. Atomized air/fuel mixture heated in the engine, ready for combustion
  2. Fumes given off by gasoline
Fuel vapor recirculation system
An emission system which traps the excess gasoline vapor, condenses it back to liquid form, and then sends it back to the gasoline tank. Also called evaporative emission control system
Fuel vapor recovery system
(FVR) a valve responsible for venting excess fuel vapor and pressure from the fuel system to the EEC system
Fuel vehicle
See
Fuel Vehicle Converter
See
Fugitive emissions
Unintended leaks of gas from the processing, transmission, and/or transportation of fossil fuels.
Fulcrum
The support (often wedge-shaped) on which a lever pivots in raising an object.
Fulcrum pin
A pin which acts as a pivot, such as a kingpin
Fulcrum ring
Fulcrum ring
Fulcrum ring
One of two rings on either side of a Clutch diaphragm spring on which it pivots.
See
Fulfillment
The picking and processing of orders for shipping from a distribution or warehouse.
Full Annealing
Annealing a ferrous alloy by austenitizing and then cooling slowly through the transformation range.
Full body diameter
A screw or bolt where the shoulder diameter is the same as the outside or major diameter of the threaded portion.
Full bore
  1. A term expressing top speed or full throttle.
  2. A colloquial term used by vehicle salesmen to express the sale of a vehicle for the full sticker price with no discount.
Full cam
A type of camshaft for race car engines which increases lift of valve, speed of valve opening and closing, length of time valve is held open, etc. Also called Race cam, Three-quarter cam, or Semi-race cam, depending upon design
Full cap
A condition of retreading where new tread rubber is added to the buffed Casing, and covers the crown and shoulder areas.
Full-Depth Reclamation
A special recycling machine grinds up the roadway, up to 6-10' deep, and produces a recycled granular base layer, usually incorporating a liquid asphalt emulsion binder. This layer is then paved with one or more layers of asphalt concrete. The finished driving surface could be an asphalt concrete 'top mix' or a surface treatment. Since this type of work involves up to three or four layers that often require 'curing,' it is usually spread over an 8-12 week period.
Full dip treatment
A painting process in which the whole body shell is immersed, used for applying protective Primers
Full face helmet
A motorcycle helmet which covers the whole head including the chin.
Full floating
Mechanism construction in which a shaft is free to turn in all parts in which it is inserted
Full floating axle
See
Full-floating axle
A rear drive axle that does not hold the wheel on nor does it hold the wheel in line or support any weight. It merely drives the wheel. Used primarily on racing cars and trucks.
See
Full flow filter
See
Full-flow filter
See
Full flow oil filter
See
Full-flow oil filter
An Oil filter that filters all of the oil passing through the engine before it reaches the bearings.
Full house
An engine that is fully modified and equipped for all-out performance.
Full leather
A car interior in which the door trim, instrument panel, seats are covered in leather
Full leather upholstery
A car interior in which the door trim, instrument panel, seats are covered in leather
Full load
An engine operating conditions where the accelerator is fully depressed, i.e., the throttle is fully open, which does not necessarily mean high engine speed
See
Full-load current
The current drawn from the line when the electric motor is operating at full-load torque and full-load speed at rated frequency and voltage
Full load enrichment
The provision of a richer mixture when the throttle is fully opened. On some system, the computer goes open-loop during full-load enrichment
Full load torque
  1. Maximum torque delivered without overheating.
  2. The torque necessary to produce the rated horsepower at full-load speed
Full lock
  1. A condition in which a detachable component (e.g., seat belt buckles) is securely attached.
  2. The maximum angle attained by the wheels when the steering wheel is turned to its full extent
Full panel
A body part that may be made up of several other subassemblies and is fairly complex and cumbersome, e.g., a complete bulkhead assembly incorporating the windshield pillars
Full pressure
See
Full Pressure System
See
Full respray
Painting the entire component or entire vehicle as opposed to a partial respray
Full service history
(fsh) The documents which show all the work performed on a vehicle, especially the regular service required by the manufacturer
Full-Size Body
The body of a bolt or screw which has a diameter between the minimum and maximum limits of the major diameter of the thread.
Full-size car
The largest type of car according to the American system. It is a designation no longer used because even full-size cars are now about the size of what was the compact car. In 1970, for instance, a Chevrolet Impala was a full-size car, a Chevelle was an intermediate, and a Nova was a compact. When cars smaller than the Nova came out (i.e., Chevette), they were called sub-compacts.
Full-size spare
A spare wheel and tire combination which is the same size as the rest of the wheels. Compare Space saver spare
Full-skirt piston
A former piston style which had a full-annulus skirt, without the cutaway section of modern Slipper pistons
Full sun
The full sun condition is the amount of power density received at the surface of the earth at noon on a clear day -- about 1.0 kilowatt/square-metre. Lower levels of sunlight are often expressed as 0.5 sun or 0.1 sun. A figure of 0.5 sun means that the power density of the sunlight is one-half of that of a full sun.
Full throttle
The fully open position of the throttle. Also called wide open throttle
Full throttle enrichment
See
Full-time 4x4
A transmission system on a four-wheeled vehicle in which all four wheels are driven by the engine all the time. Other four-wheel drive units are normally in two-wheel drive mode with four-wheel drive selected by a separate lever when required.
Full-time four-wheel drive
A condition where all four wheels are always being driven by the drivetrain. It may include the option of part-time (that is, shifting into 2WD for dry pavement) operation, and may or may not have Hi and Lo 4WD speed ranges. The British term is permanent four-wheel drive.
Full trailer
A trailer with axles in the front as well as the rear. It can stand without support. Full trailers are coupled to straight trucks and to the rear of semi or full trailers by a tongue or drawbar. Full trailers are seldom used alone with tractors.
Full Truckload
A shipment comprising a full or almost full load on a truck. A full or almost full load is considered to be 39,000 to 44,000 pounds.
Full wave rectifier
See
Full-wave rectifier
A rectifier that converts ac to dc by inverting the negative portion of an ac sine wave.
See
Fully electronic ignition
(FEI) A distributorless, mapped ignition system with cylinder-selective knock control, dwell-angle control, and digital idling speed stabilization
Fully floating axle
A live rear axle assembly in which the axle shafts serve only to transmit torque to the wheel. The total vehicle weight and cornering loads are transferred directly from the wheel bearings to the axle housing.
See
Fully galvanized body
A body shell which, except for aluminum and plastic parts, is produced entirely of double-sided galvanized steel and galvanized fasteners or which is immersed in galvanizing fluid
Fumarole
A vent from which gas or steam issue; a geyser or spring that emits gases.
Fumes
Foul-smelling vapors given off by a liquid or a gas, which may be poisonous
Functional
  1. Capable of working even if it is not working to its peak performance.
  2. Practical, designed not for esthetics; but solely with a particular use in mind
Fund license
See
Funnel
  1. A cup-shaped object tapering at the bottom to a small hole and a spout, used for pouring oil, fuel, or water into relatively small openings
  2. A smokestack of a vessel.
Funny car
A car equipped with a powerful engine, used for drag racing. Usually has special body (such as Fibreglass) mounted on special lightweight frame and Suspension system.
Furnace
  1. A heater or large forge for heating plates or shapes for bending
  2. To bend by heating in furnace.
See
Furnace, central warm air
Self-contained appliance designed to supply heated air through ducts to spaces remote from or adjacent to the appliance location.
Furol Viscosity
See
Fuse
  1. A protective electrical device (usually enclosed in glass or plastic) which has a thin wire between two terminals. The wire will break or melt when the current draw exceeds the capacity of the fuse. In this way, the circuit is protected from overload.
  2. The action of melting when a piece of metal turns to a liquid state and sometimes unites itself to a nearby component.
  3. A failure of an electrical component because of a blown fuse.
See
Fuse box
A container with a removable cover that holds the fuses for the various electrical circuits, which are all routed through it
Fuse capacity
See
Fusible link
  1. Special length of smaller gauge wire designed to blow if heavy current flows in circuit
  2. A wire in the electrical system which outwardly may appear to be no different from other wires, but has a low resistance level so that when the current is above a certain level, the wire melts and breaks continuity.
Fusible plug
Plug or fitting made with a metal of a known low-melting temperature. Used as safety device to release pressures in case of fire.
Fusion
Two metals reaching the melting point and flowing or welding themselves together.
See
Fusion fit
The Adjustable Retention System extending behind a Bell bicycle helmets to allow the helmet to grip your head better.
FVR
Abbreviation for Fuel vapor recovery system
FWD
Abbreviation for Front-wheel drive
g
A unit of measurement for lateral acceleration, or road-holding. One g is equivalent to 981 cm (32.2 feet) per second every second, the rate at which any object accelerates when dropped at sea level. If a car were cornering at 1.0 g -- a figure that very few production cars are able to approach -- the driver's body would be pushing equally hard against the side of the seat as against the bottom of it. Most fast sedans accelerate about 0.8 g.
G7
Seven industrial countries consisting of the United States, Japan, Germany, France, the United Kingdom, Italy and Canada, whose leaders have met at annual economic summits since 1975 to coordinate economic policies.
G20 Van
See
GA
Abbreviation for Gage or Gauge
Gage
A standard SAE designation of wire sizes, expressed in AWG (American Wire Gage). The larger the gage number, the smaller the wire. Metric wire sizes are expressed in cross-sectional area, which is expressed in square millimetres. Sometimes the spelling gauge is also used to designate wire size. However, it is becoming standard to use gage for wire size and gauge for instruments. Americans often use gage for instruments.
Gage tubing
See
Gain
See
Gain Control
See
Gaiter
A dust boot
Gal.
Abbreviation for gallon. A US gallon (3.78543 litres) (231 cubic inches) is 20% smaller than an Imperial gallon (4.54609 litres).
Galaxie
Ford Galaxie
Click image for books on
Ford Galaxie
GALFAN®
A trademark for a special type of hot-dip galvanized steel sheet with a coating consisting of a zinc alloy containing 5% aluminum and rare earths
Gallery
A channel or tube usually found within the engine block for the transfer of fluid or gas.
See
Galley
A cook room or kitchen.
Galley Dresser
A cook's work table.
Galling
  1. A condition that takes place when two metals or fasteners stick together and cannot be easily loosened. In tightening fasteners, for example, pressure builds on threads as metals rub against each other, and the passive film preventing corrosion on stainless may not form due to lack of oxygen. Also called seizing
  2. Developing a condition on the live bearing surface of a pin or bushing of a chain where excessive friction between high spots results in localized welding with subsequent tearing and a further roughening of the contact surfaces.
Gallon
A US gallon (3.785 litres) is 20% smaller than an Imperial gallon (4.546 litres).
See
Galvalume®
Trademark for a special type of hot-dip galvanized steel sheet with a coating consisting of 55% aluminum, 43.4% zinc and 1.6% silicon
Galvanic
Concerned with an electrical current
Galvanic action
Wasting away of two unlike metals due to electrical current passing between them. The action is increased in the presence of moisture.
Galvanic cell
Cell which converts chemical energy into electrical energy by irreversible chemical reactions
Galvanic corrosion
  1. Corrosion due to the action of a galvanic cell.
  2. An accelerated degree of corrosion occurring when two different metals are in contact with moisture, particularly sea water. All metals have what is termed a specific electric potential, so that low level electric current flows from one metal to another. A metal with a higher position in the galvanic series will corrode sacrificially rather than one with a lower position, meaning stainless, for example, will corrode before gold. The further apart the metals on the chart, the more electric current will flow and the more corrosion will occur. No serious galvanic action will occur by combining the same metals, only dissimilar ones. To prevent galvanic corrosion, use insulation, paint, or coatings when separating dissimilar metals; or put the metal to be protected next to a metal which is not important in the assembly, so it can corrode sacrificially. Metals listed first will corrode due to galvanic reaction before those at end of paragraph: magnesium, zinc, aluminum 1100, cadmium, aluminum 2024, steel and iron, lead, tin brass, copper, bronze, monel, 304 and 316 stainless (passive), silver, titanium, graphite, gold.
See
Galvanize
The action of plating with zinc and/or lead by hot dipping or electrodeposition to protect from rust.
See
Galvanized body
See
Galvanized coating
Zinc or zinc based coating applied by galvanizing
Galvanize differentially
The action of obtaining different coating thicknesses on the two sides of the sheet of iron.
Galvanizing
The application of zinc coatings on the surface of a metal, by hot dipping or electrodeposition to protect from rust.
See
Galvanizing bath
A bath for hot-dip galvanizing or Electrogalvanizing
Galvannealing
A thermal process which gives improved adhesion to hot-dip galvanized steel sheets
Galvanometer
An instrument used to measure the pressure, amount of, and direction of an electric current.
See
Gamma layer
Part of the zinc-iron alloy layer on hot-dip galvanized iron and steel containing 21-28% iron
Gangway
A narrow hanging staircase or ladder used by persons entering or leaving a vessel from the pier or boat. Also see Fore And Aft Gangway
Gantry
Gantry
Gantry
  1. A structure with an overhead beam, used for lifting out an engine. Compare Engine hoist.
  2. Overhead steel structures across the highway to hold up a traffic sign
Gap
  1. The distance between the center terminal (electrode) and the outer terminal (electrode) through which the spark must travel in a spark plug.
    See
  2. The distance between the points in contact breaker points.
    See
  3. The distance between two vehicles traveling down the road as they go in the same direction. Generally a safe distance is a minimum of two seconds behind the vehicle in front.
  4. The distance between the two ends of piston rings.
See
Gap bridging
A formation of carbon or other deposits across the Spark plug gap which shorts out the plug
Gap coil tester
See
Gap insurance
This covers you against additional losses not covered by your auto insurance in the case of an accident in which the vehicle is totaled. Most auto insurance will cover the actual cash value of the vehicle and what is owed on the lease contract, including early termination fees. Gap insurance is most important in the early years of a lease when the difference between the value of the car and what is owed are greatest. Some manufacturers now include Gap insurance in their leases.
Gapper
A device for determining the distance between two metal contacts.
See
Gapping
Adjusting the distance between the electrodes of a spark plug or the points of contact breaker points.
See
Gap spark plug
See
Gap style
The arrangement or shape of the spark plug electrodes
Gap Tooth Sprocket
An even number tooth sprocket designed with clearance for a through rod or saddle. D-5 or GK1 attachment chains are used on this style sprocket.
Garage
  1. A building in which a motor vehicle is kept.
  2. The premises on which motor vehicles are repaired or serviced and/or where fuel is sold.
  3. To keep in a garage
Garaged
A reference to a vehicle which is kept in a garage, as in My car is always garaged. The abbreviation in advertisements is gar'd.
Garage jack
A powerful hydraulic jack used in garages
Garages
See
Garbage
  1. Trucker slang for produce (bananas, lettuce etc.) as in 'I sure am glad I'm not takin' this load of garbage to Hunt's Point.'
  2. A cargo body style typified by garbage trucks that often have hydraulic packing mechanisms or hydraulic arms for lifting dumpsters. Included are roll-offs, vehicles used for transporting refuse containers. Roll-offs have rails or a flat bed and a hoist for loading and unloading the refuse container.
Garbage Cargo
A cargo body style typified by Garbage trucks that often have hydraulic packing mechanisms or hydraulic arms for lifting dumpsters. Included are roll-offs, vehicles used for transporting refuse containers. Roll-offs have rails or a flat bed and a hoist for loading and unloading the refuse container.
Garbage truck
A cargo body style often with hydraulic packing mechanisms or hydraulic arms for lifting dumpsters. Included are roll-offs, vehicles used for transporting refuse containers. Roll-offs have rails or a flat bed and a hoist for loading and unloading the refuse container. Also called refuse truck
Garbage wagon
A scornful term used by some outlaw bikers to describe a Touring motorcycle
Garboard strake
The strake of bottom shell plating adjacent to the keel plate. The course of plates next to the keel of a ship.
Gar'd
An abbreviation used in classified advertisements for garaged
Garden gate
A nickname for the plunger-sprung frames used on Norton motorcycles from the late 1930s
Garnish molding
The upper molding or trim on a door panel used to retain the door trim panel to the door assembly or to ornament the interior window frames.
See
Garnish rail
Trim moldings on doors, usually to ornament interior window frames. Also called garnish trim.
Garnish trim
See Garnish rail
Garter spring
A long, thin coil spring with ends joined to form a ring.
Gas
  1. A vapor having no particles or droplets of liquid. In physics, a gas is a substance which possesses perfect molecular mobility and, unlike a liquid or a solid, the ability to expand indefinitely
  2. A non-solid material. It can be compressed. When heated, it will expand; and when cooled, it will contract (such as air.)
    See
  3. A common term for gasoline. The British term is petrol.
    See
  4. A term for LPG or Propane.
    See
  5. A term referring to the exhaust gases.
    See
  6. A non-solid, non-liquid combustible energy source that includes natural gas, coke-oven gas, blast-furnace gas, and refinery gas.
  7. Fuel gas, such as natural gas, undiluted liquefied petroleum gases (vapor phase only), liquefied petroleum gas-air mixtures, or mixtures of these gases.
  8. To apply the throttle.
    See
See
Gas Act
See
Gasahol
See
Gas-Air Mixture
See
Gas analyzer
See
Gas-arc
See
Gas-arc welding
See
Gas Association
See
Gas Baffle
See
Gas burner
Competition vehicle with engine set up to operate on standard pump gasoline instead of an alcohol, nitro, etc., mixture. Also called gasser.
Gas-burner System
See
Gas Bypass
See
Gas cap
Gas cap
Gas cap
A vented covering on the top of the tube leading to the fuel tank. Also called fuel cap.
Gas chamber
A pressure chamber of a single-tube shock absorber
Gas charged shock absorbers
A damper that uses pressurized gas, such as nitrogen, to help prevent changes in damping as the damper heats up.
Gas Check Valve
See
Gas cleanup
Removal of a contaminant from gaseous feed streams by a mechanical or chemical process.
Gas damper
A gas shock absorber
Gas Defrost
See
Gas discharge headlight
A motor vehicle headlight with a gas discharge lamp
Gas discharge lamp
A discharge lamp in which light is generated by gas discharge
Gas discharge light
A discharge light in which light is generated by gas discharge
Gas-driven generator
A generator which turned by a gas engine.
Gaseous
Referring to gas vapor
Gaseous discharge lamp
A gas discharge lamp
Gaseous discharge headlight
A Gas discharge light
Gases
See
Gases in Bulk
These are carried in pressurized tankers only, and are not otherwise containerized. Examples: Aerosol propellant, butane, CO2, LPG, nitrogen, and propane.
Gases in Bulk cargo
These are carried in pressurized tankers only, and are not otherwise containerized. Examples: Aerosol propellant, butane, CO2, LPG, nitrogen, and propane.
Gas fade
Brake fade caused by hot gases and dust particles that reduce friction between the brake linings and drum or rotor under hard, prolonged braking
Gas filter
A device for screening the gasoline to remove the impurities.
See
Gas flame
See
Gas flow
The flow of the air/fuel mixture or the exhaust gases in an engine
Gas Forced-air
See
Gas forced-air heat pipe
High efficiency gas furnace that uses vertical liquid filled pipes. The pipes are heated by a burner at their base, and the liquid boils and vaporizes within the pipe. The furnace blower circulates air over the pipes for heating.
Gas Furnace
See
Gas gage
See
Gas gauge
An instrument, usually located on the dashboard or center console, which indicates the amount of fuel in thefuel tank. Most gauges have a Needle which fluctuates between E (empty) and F (full). Others show a digital readout of how many gallons or litres left in the tank. Also called fuel gauge.
Gas guzzler
A vehicle which uses a lot of gasoline per distance traveled.
Gas Hydrates
See
Gasification
A method for converting coal, petroleum, biomass, wastes, or other carbon-containing materials into a gas that can be burned to generate power or processed into chemicals and fuels.
Gasket
Gasket
Gasket
A material made of asbestos, cardboard, cork, paper, rubber, treated fiber, or soft metal like aluminum or copper placed between two metal parts to insure proper sealing.
See
Gasket, foam
Joint sealing material made of rubber or plastic foam strips.
Gasket kit
A collection of gaskets required to overhaul an engine or part of an engine.
See
Gasket punch
A tool used to cut out holes in a sheet of gasket material to shape a gasket to size.
Gasket scraper
Gasket scraper
Gasket scraper
A scraper with a sharp chisel edge for removing old gasket material from a surface before installing a new gasket.
Gas Liquids
See
Gas metal-arc welding
Welding using a continuously fed consumable electrode and a shielding gas. Also called sigma welding.
Gas, noncondensable
Gas which will not form into a liquid under the operating pressure-temperature conditions.
Gasohol
A blend of gasoline and ethanol alcohol or methanol that usually is 90 to 94.3% gasoline and 5.7 to 10% ethanol. This term was used in the late 1970s and early 1980s but has been largely replaced by terms such as E10, Super Unleaded Plus Ethanol or Unleaded Plus Ethanol. Ethanol is the alcohol found in intoxicating beverages. It may attack rubber and plastic parts of fuel systems not designed to handle alcohol-blended fuels, but it is not poisonous to human beings like wood alcohol or methanol.
Gas oil
European and Asian designation for No. 2 heating oil and No. 2 diesel fuel.
See
Gasoil
Designation for No.2 heating oils and diesel fuels. A clean distillate fuel oil.
Gasoline
A Hydrocarbon fuel used in an internal combustion engine. Gasoline is refined from crude oil which is made up of fossilized plant and animal remains. In Britain it is called petrol.
See
Gasoline And Isopentane
See
Gasoline Blending
See
Gasoline blending components
Naphthas which will be used for blending or compounding into finished aviation or motor gasoline (e.g., straight-run gasoline, Alkylate, Reformate, Benzene, Toluene, and Xylene). Excludes oxygenates (alcohols, ethers), Butane, and Pentanes plus
See
Gasoline grades
The classification of gasoline by octane ratings. Each type of gasoline (conventional, oxygenated, and reformulated) is classified by three grades - Regular, Midgrade, and Premium. Note: Gasoline sales are reported by grade in accordance with their classification at the time of sale. In general, automotive octane requirements are lower at high altitudes. Therefore, in some areas of the United States, such as the Rocky Mountain States, the octane ratings for the gasoline grades may be 2 or more octane points lower.
  1. Regular gasoline: Gasoline having an antiknock index, i.e., octane rating, greater than or equal to 85 and less than 88. Note: Octane requirements may vary by altitude.
  2. Midgrade gasoline: Gasoline having an antiknock index, i.e., octane rating, greater than or equal to 88 and less than or equal to 90. Note: Octane requirements may vary by altitude.
  3. Premium gasoline: Gasoline having an antiknock index, i.e., octane rating, greater than 90. Note: Octane requirements may vary by altitude.
Gasoline Injection
See
Gasoline Prices
See
Gasoline pump
A device which pulls fuel from an underground storage tank into a vehicle's gas tank.
Gas Oxygen Sensor
See
Gas pedal
The device actuated by the operator's foot for increasing or decreasing the amount of fuel entering thecombustion chamber. Also called throttle pedal or accelerator.
See
Gas pockets
Cavities in weld metal caused by trapped gas.
Gas Policy Act Of 1978
See
Gas pressure regulator
A device for controlling a selected outlet gas pressure.
Gas prop
A gas-assisted strut like a hatch strut, hood strut, or tailgate strut
Gas pump
Gas pump
Gas pump
A device at a service station which pulls gasoline from a storage tank (usually located underground) into the vehicle's gas tank. Commercial units also record the amount of fuel dispensed as well as the cost. The British term is petrol pump.
Gas purification
See
Gas Purification System
See
Gas recirculation
See
Gas Recirculation System
See
Gas Recirculation Valve
See
Gasser
A vehicle which burns normal gasoline instead of racing fuel.
See
Gas shock
A gas-assisted shock absorber
Gas shock absorber
A gas-assisted shock absorber
Gassing
The small hydrogen bubbles rising to the top of the battery electrolyte during Battery charging.
Gas spring
A pressurized, nitrogen-filled sphere, used in Hydragas and hydropneumatic suspension systems
Gas station
A place where gasoline is dispensed. British term is Petrol station.
Gas system
See
Gas tank
Gas tank
Gas tank
The container for holding or storing fuel. Also called fuel tank. Also see Liquid Gas Tank.
Gas-tight
Sealed to prevent the passage of gas
Gas to liquid
(GTL) A process that combines the carbon and hydrogen elements in natural gas molecules to make synthetic liquid petroleum products, such as diesel fuel.
Gas Tube System
See
Gas tungsten-arc welding
Welding using a tungsten electrode and a shielding gas.
Gas turbine
Gas Turbine
Gas Turbine
An internal-combustion rotating engine with one main moving part therotor with pinwheel-like blades attached. Air is compressed by the first rows of blades and delivered to the combustion chambers, from which the exhaust is directed to pass the remaining blades and to generate the power. Power is extremely smooth due to the absence of explosions andReciprocating parts.
Gas turbine Engine
See
Gas valve
Device in a pipeline for starting, stopping, or regulating flow of gas.
Gas Vehicle
See
Gas vent
A passageway, composed of listed factory-built components assembled in accordance with the terms of listing, for conveying flue gases from gas utilization equipment or their vent connectors to the outside atmosphere.
Gas welding
A welding process widely used in body repair shops (now being gradually replaced by MIG welding). Also called oxyacetylene welding.
See
Gate
  1. The slotted guide for the Gearshift of an internal combustion engine.
  2. The slotted guides in a shift drum.
  3. A tailgate.
  4. A circuit in which one signal, generally a square-wave, serves to switch another signal on and off.
See
Gate transmission
See
Gate transmission shifter
See
Gateway
The point at which freight is interchanged/interlined between carriers or at which a carrier joins two operating authorities provision of through service.
Gating
A device that permits a wave to pass another wave in a circuit in specific intervals
GATT
Abbreviation for General Agreement on Tariffs and Trade.
Gauge
This is the British and Canadian spelling while in the United States it is sometimes spelled without the u(gage). It is becoming standard to use gage for wire size and gauge for an instrument.
  1. An instrument or meter that registers the quantity of a substance
    See
  2. A tool for measuring Clearances, pressures, sizes, etc.
    See
  3. A measurement of tubing.
    See
Gauge box
A container which measures a known quantity of material such as cement, sand, or rocks for testing or making mixtures
Gauge, compound
Instrument for measuring pressures both above and below atmospheric pressure.
Gauge, high-pressure
Instrument for measuring pressures in range of 0 psia to 500 psia (101.3 kPa to 3600 kPa).
Gauge, low-pressure
Instrument for measuring pressures in range of 0 psia to 50 psia 10 kPa to 350 kPa.
Gauge, manifold
  1. Chamber device constructed to hold both compound and high-pressure gauges. Valves control flow of fluids through it.
  2. The one essential diagnostic tool required for every air conditioner service procedure. A typical gauge set includes high and low side gauges and valves for checking, measuring and controlling pressure and vacuum, and a third valve for controlling discharging, evacuation and charging procedures. Also calledgauge set
Gauge port
Opening or connection provided for a service technician to install a gauge.
Gauge, pressure
Reading in pounds per square inch (psi) above atmospheric pressure.
Gauge set
See
Gauge tubing
See
Gauge, vacuum
Instrument used to measure pressures below atmospheric pressure.
Gauntlet
A long-sleeved leather glove used by motorcyclists to prevent wasps from flying up the sleeve, as one did to me.
Gauss
A measure of magnetic flux density. In the centimetre-gram-second electromagnetic system it is one maxwell per square centimetre, where a maxwell (line) is a unit of magnetic flux. The magnetic flux density at the surface of the earth is about one-half gauss. At a magnetic pole of an electric motor the magnetic flux density is about 8000 gauss.
GAWR
Abbreviation for Gross Axle Weight Rating -- Maximum weight an axle is rated to carry by the manufacturer. Includes both the weight of the axle and the portion of a vehicle's weight carried by the axle.
Gaylord
  1. A vehicle brand of which the 1955-57 models are milestone cars.
  2. Large corrugated carton that has the same length and width as a pallet. Gaylords are usually used to protect loose parts in bulk and are frequently used in manufacturing.
G-clamp
G-clamp
G-clamp
A screw-activated clamping device in the shape of the letter G
GCM
Abbreviation for Governor Control Module
GCW
Abbreviation for Gross combination weight. Total weight of a loaded combination vehicle, such as a tractor-semitrailer or truck and full trailer(s).
GCWR
Abbreviation for Gross Combined Weight Rating
GDC
Abbreviation for Fuel Data Center
GDI
Abbreviation for Gasoline Direct Injection
GDP
Abbreviation for Gross domestic product

DICTIONARY OF AUTOMOTIVE TERMS - 'Ge'

Gear
Gear
Gear
Wheel-like part with teeth cut into the rim. When one gear meshes with another gear, it causes the second gear to drive the other and in this way transmits power. When the gears are different sizes (different number of teeth on each gear) the mechanical average is changed.
See
Gear arm
See
Gearbox
The device in the Drivetrain consisting of an Input shaft, a system of gears, and an Output shaft that multiplies engine torque. A manual transmission consists of a clutch assembly plus a gearbox; and automatic transmission generally consists of a Torque converter plus gearbox.
See
Gearbox input shaft
A shaft which transmits power from the clutch to the gearbox
Gearbox output shaft
A shaft which transmits the drive out of the gearbox
Gearchange
A British term for the process of changing gears or shifting gears.
See
Gearchange cables
British term for Shift cables used to operate gears in some transmissions. In most vehicles rods and joints are used because cables tend to stretch.
Gearchange linkage
A system of rods and joints used to operate the gearbox. British term for Shifter linkage
Gearchange mechanism
A system of rods and joints used to operate the gearbox. British term for Shifter mechanism
Gear changer
See
Gear differential
See
Gear down
To shift into a lower gear
Gear drive
See
Geared
See
Geared Speed
The calculated vehicle speed at the engine's governed rpm in each transmission gear, or (commonly) in top gear.
Gear grease
A heavy liquid Grease that fills the differential and manual transmission to lubricate the gears. Also calleddifferential grease.
Gearhead
  1. A person with a strong interest in all things mechanical
  2. The portion of a gearmotor which contains the actual gearing that converts the basic motor speed to the rated output speed
Gear indicator
A display which shows the particular transmission gear that has been selected.
Gearing
  1. The combination or system of gears or sprockets designed to transmit power.
  2. The ratio between the drive gear and the driven gear.
See
Gearjammer
Trucker slang for a speeding trucker as in 'We got us a real gearjammer in that eastbound lane.'
Gear knob
British term for the knob at the end of a lever, i.e., Shifter knob
Gear lever
A device which is attached to the side of a steering column or to the center console which will allow the operator to change the gears of the transmission. Also called shift lever.
See
Gear oil
A heavy oil which is rated at 80 to 100 weight Viscosity used in enclosed units containing gears. This oil infrequently or rarely needs changing.
See
Gear oil pump
An oil pump with gear teeth to move the oil.
Gear puller
Gear puller
Gear puller
A tool with two or more jaws and pressure screw for pulling off gears, bearings, pulleys, etc.
See
Gear pulser
A term used by some manufacturers, including Subaru, for the Tone rings
Gear pump
The simplest oil pump with two gear wheels.
See
Gear range
Choice of gears in an automatic transmission. The typical gear ranges are P - Park, R - Reverse, N - Neutral, D -Drive, L - Low
Gear ratio
  1. The relationship between the number of turns made by a driving gear to complete one full turn of the driven gear. If the driving gear turns four times to turn the driven gear once, the gear ratio would be 4 to 1. In most instances, the gear ratio is not even like 4:1 because the same teeth would be meshing with each other frequently. Thus a ratio of 4.11:1, for instance, means that a particular tooth on one gear would take a much longer time (i.e., more revolutions) to mate with the same tooth on the other gear. Changing the tire size will change the effective gear ratio.
  2. A number, usually expressed as a decimal fraction, representing how many turns of the input shaft cause exactly one revolution of the output shaft. Applies to transmissions, power takeoffs, power dividers and rear axles. Example If 2.5 revolutions of an input shaft cause one revolution of the output shaft, the gear ratio is 2.5:1.
See
Gear reduction
Setup in which a small gear is used to drive a larger gear. Produces an increase in torque.
Gear selector
The device (e.g., lever or rod or pushbutton) for choosing the desired automatic transmission gear. Located on the side of the steering column, in a console, or on the floor between the front seats.
See
Gear selector indicator
An indicator positioned in the instrument cluster or on the center console shift gate indicating which gear has been selected in an automatic transmission
Gearset
A group of two or more gears within a transmission used to transmit power.
See
Gear shaft
See
Gearshift
Gearshift
Gearshift
A device which allows the operator to move the transmission gears into various configurations. Most often the gearshift is located on a lever on the Steering column or on a lever on the floor between the driver and front passenger. Some older Chryslers had Pushbutton controls on theDash. On motorcycles, the shift lever is located on the left or right side and operated by the foot.
Gearshifter
Gearshifter
Gearshifter
A device which allows the operator to move thetransmission gears into various configurations. Most often the gearshift is located on a lever on the Steering column or on a lever on the floor between the driver and front passenger. Some older Chryslers had Pushbutton controls on the Dash. On motorcycles, the shift lever is located on the left or right side and operated by the foot.
Gearslammer
Trucker slang for a trucker who's known to accelerate and decelerate a lot as in 'Better watch out there's a real gearslammer in the granny lane.'
Gearstick
A British term for the stick used by the driver to change gears. Also called a shifter or shift lever.
Gear tooth
The indentation on the edge of a gearwheel
Gear train
A system of gears that transmits drive from one shaft to another.
See
Gear transmission
See
Gear-type oil pump
Gear-type oil pump
Gear-type oil pump
The simplest oil pump with two gear wheels. Compare Rotor-type oil pump.
Gear up
To shift to a higher gear
Gearwheel
A gear
Gel
  1. A substance like jelly.
  2. To become like jelly
See
Gel cell battery
A battery where the acid is in the form of a gel so that in the event of a spill, acid does not leak out -- especially recommended for electric mobility scooters and power wheelchairs
Gel coat
  1. A thin layer of plastic resin covering fiberglass panels.
  2. An outer layer of GRP (glass reinforced plastic) moldings which gives a smooth surface that may be colored
Gel-coat resin
A resin similar to general lay-up resin but with an additive to make it thixotropic, i.e., it does not run down vertical surfaces; used to make the gel coat in moldings
Gelling drier
A drier for PVC sealants
Gel saddle
A bicycle or motorcycle seat that has gel placed in certain areas to increase comfort.
GEM
Abbreviation for Generic Electronic Module
Gemmer steering
A cam-and-roller steering
GEN
Abbreviation for Generator (Alternator)
General Agreement on Tariffs and Trade
(GATT) Signed in 1947, the GATT was a formal multilateral agreement aimed at expanding and liberalizing world trade. The World Trade Organization which is the successor to the GATT came into existence on January 1, 1995.
General cargo
Non-bulk cargo. The cargo may be of various kinds
General corrosion
In contrast to pitting, a type of corrosion which affects the entire surface of a metal
General Freight
processed items, packaged or in some way containerized, and fairly closely packed.
General Freight cargo
Processed items, packaged or in some way containerized, and fairly closely packed.
Generalized Preferential Tariff
(GPT) system of non-reciprocal tariff preferences for the benefit of developing countries. It grants duty-free or preferential entry to imports for eligible developing countries up to a certain dollar value or import percentage limit.
General mess of crap
Trucker slang for GMC trucks by Volvo/White as in 'I used to drive a general mess of crap.'
General Motors
General Motors
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General Motors
(GM) or (GMC) The largest American vehicle manufacturer including: It has subsidiaries and associates in Britain (Vauxhall), European continent (Opel, Fiat, and Saab), Australia (Holden), Asia (Subaru, Fuji,Suzuki)
General purpose lacquer thinner
A type of thinner that may be used for both lacquers and synthetic enamels without causing lifting or other paint faults
General purpose pliers
Any kind of typical multi-purpose pliers.
General repair manual
Service manual that covers many models. Often not published by the specific model manufacturer.
Generate
To produce.
Generating Plant
See
Generator
  1. A mechanism which generates or produces some substance, i.e., electric generator, acetylene generator.
  2. A device which converts mechanical energy into electrical energy, producing direct current (dc).
  3. An Electromagnetic device for producing Direct current electricity. It was replaced by an Alternator in the early '60s. Its problem was that a generator Recharged the battery only at high speeds. The British call it a dynamo.
See
Generator capacity
The maximum output, commonly expressed in megawatts (MW), that generating equipment can supply to system load, adjusted for ambient conditions.
Generator nameplate capacity
The maximum rated output of a generator under specific conditions designated by the manufacturer. Generator nameplate capacity is usually indicated in units of kilovolt-amperes (kVA) and in kilowatts (kW) on a nameplate physically attached to the generator.
Genset
Abbreviation for Generator set, a generating system comprising a combustion engine driving an electrical generator.
Geo
Geo
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Geo
A model of automobile manufactured by Suzuki for GM including the following models Metro (1989-97), Prizm (1989-97), Spectrum (1988-89), Storm (1990-93), Tracker (1989-97)
Geographic Information System
(GIS) A system of information, organized in layers that can be applied to a specific geographic location to such things as population density, traffic volume, business development, etc.
Geometry
The design, layout, or arrangement of parts.
See
Georges Irat
A vehicle of which models built between 1925 and 1948 are classic cars
Georgia overdrive
Trucker slang for neutral gear as in 'You put her in Georgia overdrive on the downstroke.'
Geotextile
Generic term for material used in several different roadway applications.
Gesture
A condition of a vehicle that has implied motion in its styling lines and shapes.
Getting out
Trucker slang for being heard on the CB as in 'Can anyone tell me if my CB is getting out?'







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