Cars - http://maxpages.com/carsinhistory/B

burn rubber: The action of rapid acceleration where the wheels make rapid rotation, but there is only very little momentum. As a result, the driving wheels leave some rubber behind on the pavement. See peel rubber.

burnt valves: See burned valves

burr: A roughness left on a cut or punched metal. A rough edge or ridge.

burred wheel: A wheel which has metal slivers or roughness around the edge of the rim.

burr walnut: A wood veneer used for dashboards and door trim on some cars. Also see zebrawood

burst: To explode and suddenly lose all the air in a tire.

bury the needle: Going beyond the displayed maximum speed. For example, a digital speedometer may show speeds from zero to 137 kph (85 mph) on its display. When the needle goes beyond the maximum displayed point, it may go beyond the line of sight and is considered buried.

bus: [1] A large public or private passenger vehicle used for transporting many (at least 10) passengers. See single-decker bus and double-decker bus [2] A busbar which is a heavy conductor used to carry or make a mutual connection between several circuits.

busbar: A heavy conductor used to carry or make a mutual connection between several circuits. Also called a "bus."

bush: British term for bushing.

bushing: [1] A protective liner or sleeve that cushions noise, friction, or movement. Suspension bushings are often made from two pipes (one inside the other) with a sleeve of rubber in the space between the two pipes. [2] Rubber bushings on the suspension system should be lubricated regularly. [3] A bearing for a shaft, spring shackle, piston pin, etc., of one piece construction which may be removed from the part.

butane: A petroleum gas that is a liquid, when under pressure. Often used as engine fuel in trucks. Also see LPG.

butted tubing: Tubing whose outside diameter remains constant but whose thickness is reduced in midsection where less strength is needed.

butterfly: See butterfly valve

butterfly valve: A nut with wings to be turned by thumb and finger. Sometimes called a "wing nut."

butterfly valve: A small metal disc located in the carburetor that controls the flow of air into the carburetor. It is so named due to its resemblance to the insect of the same name.

butt joint: [1] A piston ring gap in which the two ends of the ring are squared off. [2] A weld where the two panels are not overlapped but fit against each other end to end.

button: A small disk or knob which activates something electrical when it is pressed such as a starter button.

button head: A bolt with a round head

buttons: See button.

buttress: A thick rubber reinforcement in the shoulder of a tire. It provides support at the edge of the tread, limits shoulder area flexing, and protects the shoulder of off-road tires.

buttressed thread: A screw thread with one vertical and one inclined flank

butyl: A non-porous synthetic rubber used in making inner tubes and tubeless tire liners.

buying decisions: the act of determining whether or not a product purchase or repair, will be made, and/or which product or service will be purchased.

B/W: Black and white, usually referring to photographs.

BW: Acronym for "blackwall," as in BW tires.

bypass: [1] A road which avoids the congested area of a city traffic. [2] An alternate route for a flowing substance. [3] To go around something to avoid it

bypass air screw: A screw located on the airflow sensor of a fuel injection system. It adjusts the amount of air allowed into the air-fuel mixture.

bypass filter: An oil filter that constantly filters a portion of the oil flowing through the engine.

bypass valve: A valve that can open and allow a fluid to pass through in other than its normal channel.

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Page Updated Sun May 20, 2001 8:08pm EDT