ALTERNATOR (ALT): Describes a type of device that produces alternating current (AC) by converting an engine's mechanical energy into alternating electrical current at all engine speeds. The AC must be rectified (converted from AC to direct-current (DC) by using diodes before reaching the vehicle's electrical system. efficient especially at idle. Options such as air conditioning forced the use of alternators over generators.
CHARGING SYSTEM: Describes the system that, using a fan belt driven by the engine, enables the alternator (or generator) to generate electrical current, which is stored in the battery and delivered to the electrically operated pars of the vehicle chassis.
DRIVE END BRACKET: Describes the cover which houses the drive end of an alternator or generator.
DUAL BREAKER POINTS: Describes a type of distributor, using two sets of breaker points to increase the cam angle so that at high engine speeds, sufficient spark will be produced to fire the plugs.
END BRACKET: Describes the cover that houses a bearing at each end of a generator or alternator.
INTEGRAL ALTERNATOR/REGULATOR (IAR): Describes a type of regulator mounted at the rear of the alternator
AUTOMATIC CHOKE: Describes a device that automatically reduces the amount of air entering a carburettor through sensing changes in engine temperature, usually controlled by a coil spring.
MANUAL CHOKE: Describes a linkage system activated by a knob on the dash s attached to a cable with the other end of the cable is attached to a butterfly valve on the carburettor.
REMOTE CHOKE: Describes a situation in which a vacuum diaphragm is mounted on the carburettor, allowing the choke lever to be operated by a mechanical linkage rod from the bimetal spring.
NEGATIVE CONNECTIONS: Describes the connections in an electric circuit through which the current flows back to its source.
NEGATIVE GROUND: Describes an electrical system where the chassis is fitted on the negative side of the circuit with a separate wire leading to each component acting as the positive (hot) line.
NEGATIVE POLE: Describes the point toward which an electrical current flow through the circuit that is designated by the minus sign (-).
NEGATIVE SPARK: Describes a spark that jumps from the negative centre electrode to the positive ground electrode of the spark plug, allowing a reduction in the high voltage required
NEGATIVE TEMPERATURE COEFFICIENT (NTC): Describes a special type of thermistor whose resistance decreases as the temperature increases, with almost all coolant temperature sensors being NTC thermistors.
NEGATIVE TERMINAL: Describes a terminal from which current flows on its path to the positive terminal, attached with a black cable. The negative terminal is usually marked with a minus symbol.
REGULATOR: Describes a device whose role it is to maintain a designated characteristic, either voltage or current, either at a predetermined value, or according to a predetermined plan.
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History of the Great British and European cars of the Fifties and Sixties and the people that made them – as well as how to acquire, restore and maintain a classic car of your own.