DICTIONARY OF AUTOMOTIVE TERMS - Profile Pictures for ...

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The removal of material which has been adsorbed. It is the opposite of adsorption. DeSoto: A vehicle brand of which the 1956-58 Adventurer models are milestone cars. Click for books on DeSoto destruction: Trucker slang for Road construction as in "Seem's like all the roads in pennsylvania are always under destruction." detachable rim: A wheel rim which is bolted to the wheel center or spider and can be disassembled for replacing the rubber tire. It is found on trucks and some quads. It is also called a demountable rim detachment: See flow detachment detail: The action of correcting all appearance flaws in a vehicle. detailitis: A term coined by Art Treta to indicate a compulsive disorder which compels a vehicle owner to correct its every flaw to the extent that he searches for even the most hidden flaw. Also see detector: restorationitis See glass tampering detector
adar detector detector, leak: Device used to detect and locate refrigerant leaks. detent ball and spring: A spring loaded ball that snaps into a groove or notch to hold some sliding object in position. detergent: A soap-like chemical added to the engine oil (particularly MS oil) or gasoline to improve its characteristics and keep the engine clean by controlling the formation of sludge and gum as well as controlling foaming. detergent oil: An MS oil which keeps the engine clean by preventing the formation of sludge and gum. deterioration: See catalyst deterioration thermal deterioration DeTomasoPantera: A model of automobile manufactured in Italy Click for books on Pantera detonation: The action of the fuel charge firing or burning too violently, almost exploding. It sometimes results in a noise called "pinging." Detonation is caused by autoignition of the "end gas" i.e., that part of the charge not yet consumed in the normal flame-front reaction. Detonation occurs because piston motion and compression of the end gas raise its temperature and pressure to the point where the end gas autoignites. The pinging or knocking noise is the result of intense pressure waves in the charge which cause the cylinder walls to vibrate. Also called "fuel knock."
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A: DICTIONARY OF AUTOMOTIVE TERMS (
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Acronym for "air aspirator system".
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esistance. Abney law: A rule statin
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coated abrasive non-woven abrasive
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absolute ceiling: The height at whi
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[2] The capacity of materials such
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absorption discontinuity: See absor
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abut: A natural number for which th
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AC Aceca: (pronounced ah-SEEK-uh) A
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accelerating electrode: An electrod
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mounted below deck level, for assis
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acceptable quality level: (AQL) A m
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A set of features or appointments w
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accumulation point: A mathematical
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ACEA: Acronym for "Association des
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AC generator: [1] An electromagneti
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acidizing: Improving the flow of oi
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Ackermann steering: [1] A double-pi
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acoustic absorption factor: The rat
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transmission, as in an electric wav
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acoustic resonance: Enhancement of
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Prefix from Greek akros (ακρος
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[1] Abbreviation for active control
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Chemical which is a form of aluminu
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active current active voltage activ
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The time average over one cycle of
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actuate: The action of bringing a p
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adaptive array: A radar antenna (ei
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additive printer: Photographic or m
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[2] Agent for joining materials by
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and pressure. adiabatic expansion:
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Some emissions-era Rochester carbur
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automatic wear adjuster brake adjus
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Property which permits the flow of
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advanced mobile phone system: (AMPS
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Strouhal number aeolotropic: Having
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aerobars: Sometimes referred to as
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well as give better fuel economy. A
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and flight planning messages. aeron
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Said of characteristic curves of ap
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[1] The period during which the glo
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Abbreviation for automatic gain con
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A French expression to indicate the
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Abbreviation for advanced gas-coole
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See suspension aids aileron droop:
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driver air bag passenger-side air b
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[2] Term describing a switch or cir
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air cleaner element: The replaceabl
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air cooled engine: An engine which
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jet noise air cushion: See airbag a
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aired up: Said of an oil plunger pu
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The passage of air which moves arou
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cornering ability, improve stabilit
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air-guard: (AG) An American Motors
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air injection: A system that inject
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air laying: Method for forming a we
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airmanship: Skill in piloting an ai
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airport meteorological minima: The
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Air Registration Board: (ARB) The a
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British term for air deflector. air
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A registered trademark for Michelin
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air-to-air intercooler: A heat exch
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A method of spray application which
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Acronym for "As Low As Possible." A
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[3] A beverage which impairs a driv
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al fresco driving: Driving in a con
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[6] Process of orientation of e.g.,
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Allard: A vehicle brand of which th
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allochromy: Fluorescent reradiation
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A piston made primarily of aluminum
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all wheel drive: See all-wheel driv
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alpha decay energy: The sum of the
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flashing light occulting light alte
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A switching device generally compri
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strength, are capable of being cast
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ambiophony: Technique of sound repr
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The middle portion of a ship or car
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[1] Measurement of the ability of a
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amplidyne: A rotating magnetic ampl
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Acronym for " air management system
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A registering meter used to determi
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the brakes are applied and the vehi
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angle: See ackermann angle approach
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angle-nose pliers: A pair of pliers
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tending to cause relative sliding.
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angle of stall: The angle of attack
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Frequency of a steady recurring phe
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anisotropic etching: Describes an e
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Also see epicyclic gearbox annuncia
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anode strap: Connecting strip betwe
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anomalous scattering: See scatterin
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antenna field: Map showing electrom
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The anode target of an X-ray tube o
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in higher-frequency applications. a
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See anti-knock agent antiknock agen
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See antiparticle antimonide: See al
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Short-lived particle, half-life 0.0
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antismog device: A special part or
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anti-theft system: Any device (mech
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An antenna with useful efficiency o
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API scale: Abbreviation for America
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See air-cooled apparatus Beckmann a
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applied power: For an electrical tr
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APT: Acronym for "adjustable part t
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ARC: track arc [1] Acronym for Aero
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architectural acoustics: The study
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arc resistance: The ability of an i
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argon laser: Laser using singly ion
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armature reaction: The magnetic fie
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The original oscillator, in which t
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Also see Pierce-Arrow arsenical cop
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artificial feel: In an aircraft fly
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ASE: receives a reflection from und
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itumen aspheric surface: A lens sur
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assembly line communications link:
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An active circuit, having two quasi
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A pattern in which one side does no
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ATA: ATB: ATC: Acronym for ampere-t
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atmospheric boundary layer: (ABL) T
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plutonium-239. atomic clock: A cloc
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A powder produced by the dispersion
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propagation constant attenuation di
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Audi: A cycle-touring club in Paris
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See stereophony auger effect: For a
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Austro-Daimler: A vehicle brand of
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autocycle: An obsolete moped which
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Also see automatic choke automatic
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automatic choke: A device attached
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automatic frequency control: (AFC)
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automatic ride control: Electronica
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either being used to adjust the ser
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A device that automatically compens
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automotive: Relating to or occurrin
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Photographic record, usually of a b
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Additionally, supplementary. auxili
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auxiliary rotor: A small rotor moun
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avalanche transistor: A transistor
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(AVGAS) Blends of liquid hydrocarbo
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Axe: axes: A superstructure deck, a
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axle: An imaginary line along the c
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axle housing: An American term indi
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axonometry: Measurement of the axes
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aby seat: A specially designed seat
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acking: Some material placed on the
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An air conditioning term which mean
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side impact air bag tank bag bagger
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See spool balance valve balance wei
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allast tank: Tanks at the bottom or
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screw-activated lever action to spl
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and brake: See brake band band radi
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oring bar bull bar bumper bar busba
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four barrel [2] Another name for th
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See lithium base grease base idle:
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An old car which probably does not
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attery acid: Electrolyte (usually s
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A group which makes decisions relat
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[1] A battery post on the top of th
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[1] The portion of a tire which fit
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The portion of the wheel rim below
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See high beam indicator main beam i
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[2] The inner race in an adjustable
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earing surface: The area of the bea
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Colloquial term for BMW Beetle: Col
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leather or rubber belt to transfer
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seat-integrated belt system seat-in
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ending pliers: Pliers with flat, sm
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See kissing between duals between p
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ake bias. bias belted tire: A type
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ig end: The end of the connecting r
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ike lock: A horseshoe-shaped metal
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The ingredient in a paint that hold
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See carbon black black and white ch
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[2] The part of a windshield wiper
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avoided. bleed down: The collapse o
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An unusually wide C-pillar enclosin
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is plugged into 110 volt AC wall so
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[2] A fan for an interior heating a
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low torch: A tool which is attached
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BMW roundel: The little black, blue
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ody assembly: The building up of th
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A drawing showing the forms of the
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ogie wheel: One of the suspension w
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See four bolt mains bolt-on: Access
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one: boned: See T-boned bonk: See A
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[3] Thumping sound coming from larg
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A sensing device in a supercharger.
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Also see stroked. bore diameter: Th
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ottle jack: A hydraulic lifting dev
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All the gaskets below the base gask
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(BV) connects the float bowl to the
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oy: A derogatory description of a c
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acket set: See chassis bracket set
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A unit installed in the brake syste
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induced during braking. Also See hy
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A machine to refinish the inside of
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ake lever: [1] A blade attached to
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ake pad: [1] The friction material
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ake proportioning valve: A valve th
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ake shoes: The components of a drum
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aking efficiency: braking effort as
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aze welding: Making an adhesion gro
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A tow-truck breaker: [1] A person w
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eaker-triggered transistorized igni
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Also see oil breather pipe breather
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Also see gap bridging bright: A lus
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An alloy of copper and tin. bronze
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A small blister in the finish of pa
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efore upper dead center. Same as BT
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Buick: A vehicle brand of which the
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Also see body builder Builders and
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ear bulkhead. [2] Vertical partitio
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energy-absorbing bumper energy abso
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umping blade: An autobody tool used
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A specialized bungee cord shaped in
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urnt valves: See burned valves burr
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A solderless wire connector used to
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utyl tube: The typical material for
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C: [C]: χ: C-3: C3I: [1] Abbreviat
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flying at 9000 m this differential
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cable guide: A tube which is secure
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cadence: The speed your bicycle ped
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drawn condition combined with good
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A type of winding used for rotors o
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calibre: See caliber California whe
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emission of visible rays by a body
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[2] The rise of a deck of a ship, a
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cam follower: The unit that contact
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See opening cam/rocker cam/rocker:
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That part of the camshaft that runs
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canister purge solenoid: An electri
Page 461 and 462:
See cantilever brake. cantilever br
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They are the fundamental relations
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See electrostatic microphone capaci
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capillary: A tube with a very small
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capstan lathe: A lathe in which the
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written off caravan: [1] A group of
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carbon brush spring: See brush spri
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carbonization: The steeping of wool
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carborundum wheel: See grinding whe
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carburetor barrel: The tube-like pa
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See Classic Car Club of America car
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cargo area: The space within a stat
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car park: A parking area usually lo
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arge carriers bicycle carrier bulk
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car tax: A government imposed tax w
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Acronym for "cleaner air system" ca
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[2] The tire casing. Also see axle
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caster: A wheel alignment adjustmen
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See lost-foam casting process casti
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catalan process: Reduction of haema
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The rate a catalytic converter puri
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catchment basin: The area from whic
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cathode copper: The product of elec
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cathodic protection: [1] The action
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caulking tool: A tool, similar in f
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Acronym for "Classic Car Club of Am
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CEC: Acronym for "combination emiss
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Acronym for "Consumer Electronics M
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center keelson: See center girder c
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A small lever attached to the cente
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central reserve: A British term for
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centrifuge brake drums: To combine
Page 525 and 526:
speed and charge of the particles m
Page 527 and 528:
Acronym for central fuel injection.
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A pipe for passage of chain from wi
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A device which takes up the slack i
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chamois: Pronounced SHAM-mee. A sof
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See charge changing wheel changing
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charcoal filter: A filtration syste
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charger: Common name for a battery
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See induction stroke. charging syst
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chassis section: One of the chassis
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check the oil: Using a dipstick, de
Page 547 and 548:
Chevrolet: A vehicle brand of which
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On the rear doors of a car, a speci
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chip hammer: A hammer used to remov
Page 553 and 554:
enriching the fuel-air mixture and
Page 555 and 556:
Christmas tree: A device, using a s
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chromium steel: In order to improve
Page 559 and 560:
circle diameter: See pitch circle d
Page 561 and 562:
Electrical wiring; electrical path
Page 563 and 564:
city cycle: An adult bicycle or tri
Page 565 and 566:
A British term for internal thread.
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• MG (1935-39 SA, 1938-39 WA)*
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A horn which makes a particular sou
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clearance fit: Parts that are assem
Page 573 and 574:
the international concern that incr
Page 575 and 576:
See hose clip pliers clock: [1] An
Page 577 and 578:
A self-adjusting system which keeps
Page 579 and 580:
The seating is usually a little mor
Page 581 and 582:
clutch positive clutch pull-type cl
Page 583 and 584:
clutch judder: A British term for "
Page 585 and 586:
See clutch semi-centrifugal release
Page 587 and 588:
Acronym for "carbon monoxide." A de
Page 589 and 590:
A file with deep grooves for removi
Page 591 and 592:
To put something together in a roug
Page 593 and 594:
coefficient of friction. This coeff
Page 595 and 596:
See transistorized coil ignition wi
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cold cap: A process in retreading a
Page 599 and 600:
See cold start cold start enrichmen
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The foremost main transverse watert
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column changer: See column shifter
Page 605 and 606:
combustion: The intense burning of
Page 607 and 608:
combustion residue: Carbon and othe
Page 609 and 610:
compact: The brushes (as in the gen
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through the carburetor increases. A
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composite headlamps: Reflector and
Page 615 and 616:
To place under pressure or to squee
Page 617 and 618:
Also see molding compression mouldi
Page 619 and 620:
Also see air compressor coil spring
Page 621 and 622:
Compressor which uses a piston and
Page 623 and 624:
concave weld face: A weld having th
Page 625 and 626:
condenser (also called a "capacitor
Page 627 and 628:
conditions: See driving conditions
Page 629 and 630:
connecting rod: The connecting link
Page 631 and 632:
constantan: An alloy made of nickel
Page 633 and 634:
pollutants in the total sample are
Page 635 and 636:
contact breaker point: The individu
Page 637 and 638:
[2] Substance such as dirt, moistur
Page 639 and 640:
A thermal action where the size (ma
Page 641 and 642:
See spark control computer control,
Page 643 and 644:
attery discharge controller solid s
Page 645 and 646:
control switch: See vacuum control
Page 647 and 648:
Circulation of a gas or liquid due
Page 649 and 650:
converter converter converter conve
Page 651 and 652:
and picks up heat from the engine a
Page 653 and 654:
a surface, you increase the overall
Page 655 and 656:
valve core core, air: Coil of wire
Page 657 and 658:
The speed that a vehicle makes when
Page 659 and 660:
[2] Deterioration of materials from
Page 661 and 662:
cost: The price that a shop charges
Page 663 and 664:
is folded almost in half and the be
Page 665 and 666:
countersunk bolt: A bolt with a spe
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coupling differential: See viscous
Page 669 and 670:
[2] The part of the bodywork which
Page 671 and 672:
crab-tracked: A situation where the
Page 673 and 674:
The lower part of the engine that s
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cranking circuit: See starting syst
Page 677 and 678:
A gear mounted on the front of the
Page 679 and 680:
Also see oblique crash test crash t
Page 681 and 682:
Cressida: A model of automobile man
Page 683 and 684:
A system of securing the main beari
Page 685 and 686:
crossover: See heat crossover. cros
Page 687 and 688: crown: [1] The tread area of a tire
Page 689 and 690: vacuum controls to push or pull on
Page 691 and 692: A wrench whose end is shaped like a
Page 693 and 694: cup: through these openings to prod
Page 695 and 696: heat-sensitive state desired in the
Page 697 and 698: customer: A person who is at least
Page 699 and 700: [3] A portion of a panel which has
Page 701 and 702: cutting snips: See hole cutting sni
Page 703 and 704: four stroke cycle engine two-stroke
Page 705 and 706: "block heater." cylinder bore: The
Page 707 and 708: Cylinder in which refrigerant is st
Page 709 and 710: dagmar: [1] Large bullet-shaped pro
Page 711 and 712: damper settings: See spring and dam
Page 713 and 714: dashpot: A unit using a cylinder an
Page 715 and 716: DBI: dbl: DC: scale; sound pressure
Page 717 and 718: dead end: A road which has no outle
Page 719 and 720: Act of separating air from substanc
Page 721 and 722: weather deck [6] Insulated horizont
Page 723 and 724: The process of discharging a batter
Page 725 and 726: An electric or hot air device to re
Page 727 and 728: degreasing: [1] The removing of gre
Page 729 and 730: delay: An old brand of automobile o
Page 731 and 732: Delorean: A model of automobile man
Page 733 and 734: dent: [2] Closeness of texture or c
Page 735 and 736: depress the throttle pedal: The act
Page 737: [1] A drying agent (silica gel or a
Page 741 and 742: device: A piece of equipment or a m
Page 743 and 744: A computer terminal or engine analy
Page 745 and 746: dial caliper: A slide-type caliper
Page 747 and 748: [5] A rubber-like piston or bellows
Page 749 and 750: die casting: [1] Formation of an ac
Page 751 and 752: die stock: A tool used to hold and
Page 753 and 754: way the tires do not scuff or skid.
Page 755 and 756: differential-pressure valves and th
Page 757 and 758: See crankcase dilution. dimmer: A s
Page 759 and 760: A British term for the dimmer switc
Page 761 and 762: directional tire: Directional desig
Page 763 and 764: ake disc brake disc type caliper di
Page 765 and 766: discharge air: Air conditioning air
Page 767 and 768: See spark discharge voltage dischar
Page 769 and 770: [2] Offsetting of the hub on a rear
Page 771 and 772: disposition fee: A fee you pay at t
Page 773 and 774: distributor: [1] A unit in the igni
Page 775 and 776: The cam at the top of the distribut
Page 777 and 778: Also see anti-dive system anti-lift
Page 779 and 780: DKW: In 1904 Jörgen Skafte Rasmuss
Page 781 and 782: The C-post or C-pillar. dogleg sect
Page 783 and 784: A dome-shaped interior light. Also
Page 785 and 786: [2] the door aperture. door gap: Th
Page 787 and 788: A strip of rubber, plastic, or chro
Page 789 and 790:
will absorb 1 to 2 percent of water
Page 791 and 792:
(Budd mounting) A type of securing
Page 793 and 794:
A socket with 12 points rather than
Page 795 and 796:
(SPDT) Electric switch with one bla
Page 797 and 798:
Also see forced downshift downshift
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draft marks: The numbers which are
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A petcock or drain tap. Also see ra
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draw-through: A tubocharger system
Page 805 and 806:
drill press: A nonportable machine
Page 807 and 808:
eccentric drive Ferguson four-wheel
Page 809 and 810:
drive line: See driveline driveline
Page 811 and 812:
drive pulley: [1] A pulley which is
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ear-drive vehicles. There is usuall
Page 815 and 816:
driving lamp: A British term for "d
Page 817 and 818:
A piece of steel shaped between die
Page 819 and 820:
dry: [1] For paint, to lose its wet
Page 821 and 822:
and in the case of tin, brightness.
Page 823 and 824:
dry weight: The weight of a vehicle
Page 825 and 826:
A second set of controls for use by
Page 827 and 828:
dual sport: Street-legal motorcycle
Page 829 and 830:
See bottom dumps dump truck: [1] A
Page 831 and 832:
dust cover: A soft, flexible valve
Page 833 and 834:
dwell angle: See dwell. dwell-angle
Page 835 and 836:
dynamic timing meter: A GM diesel t
Page 837 and 838:
Also see fork ear Earles forks: Lon
Page 839 and 840:
ease up on the throttle pedal: The
Page 841 and 842:
ebonite: hard black rubber compound
Page 843 and 844:
damage to the environment, usually
Page 845 and 846:
edge binding: tape for securing the
Page 847 and 848:
arrier effect braking effect engine
Page 849 and 850:
EGR: Acronym for "Exhaust-gas recir
Page 851 and 852:
See eight-track. eight-track: An 8-
Page 853 and 854:
electric: operated by or derived fr
Page 855 and 856:
System in which heat from electrica
Page 857 and 858:
electrode: [1] In a spark plug one
Page 859 and 860:
electrolytic condenser-capacitor: P
Page 861 and 862:
motor moves something) electronical
Page 863 and 864:
electronic gasoline injection: (EGI
Page 865 and 866:
high energy ignition system with el
Page 867 and 868:
electroplating: The process of elec
Page 869 and 870:
ellipsoidal headlight: A headlight
Page 871 and 872:
exhaust emissions low-emission low
Page 873 and 874:
part of a fixed jet carburetor, in
Page 875 and 876:
end cutting: end cutting pliers: Br
Page 877 and 878:
end speed: See top end speed Also s
Page 879 and 880:
See high energy ignition system hig
Page 881 and 882:
HC engine pre-combustion engine pus
Page 883 and 884:
(ECT) the thermistor sensor that pr
Page 885 and 886:
some engines such as the opening an
Page 887 and 888:
engine subframe: A separate frame i
Page 889 and 890:
enrichner: A fuel plunger which is
Page 891 and 892:
Environmental Protection Act: See c
Page 893 and 894:
See extreme pressure lubricant. epo
Page 895 and 896:
[lit: The law of work] Technically,
Page 897 and 898:
ESV: ET: ETA: ETC: problem once we
Page 899 and 900:
Euromix formula: The basis for a st
Page 901 and 902:
evaporative emission shed system: (
Page 903 and 904:
Acronym for EGR valve position sens
Page 905 and 906:
exhaust: [1] To expel spent fumes.
Page 907 and 908:
formation of harmful pollutants in
Page 909 and 910:
exhaust gas check valve: (EGC) a de
Page 911 and 912:
exhaust pipe: Pipe connectin g exha
Page 913 and 914:
exhaust system: The pipes, resonato
Page 915 and 916:
(EVO) A mark on a valve-timing diag
Page 917 and 918:
This is the projected or expected v
Page 919 and 920:
extension piece: See extension exte
Page 921 and 922:
extras: Optional items either suppl
show all

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