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Sports Vehicle

A multipurpose vehicle for road and off-road service, generally appealing to the outdoor enthusiast, available in tow-wheel drive, four-wheel drive, or all-wheel drive having a pickup truck body design with standard cab or extended cab area. Van designs are considered sport vehicles, but for family use.

Sporty Car

A compact two-door, four-passenger sports-styled coupe or convertible having a long hood and a short deck.

Spot On

1. A critical measurement. 2. Absolutely correct or accurate.

Spot Putty

A body filler for slight dents and scratches.

Spot Repair

A small repair such as a scratch or dent.

Spot Weld

A weld made between or upon overlapping members in which bonding may start and occur on the mating surfaces or may proceed from the outer surface of one member.

SPOUT

Spout is the abbreviation for Spark Output which is the output line from the Electronic Control Unit to the Ignition Module.

Sprag

1. A figure-eight-shaped locking element of a one-way sprag clutch. 2.A one-way clutch used in an automatic transmission.

Sprag Clutch

1. A device containing numerous oblong parts, called sprags, that operate by tilting between an inner and outer race to lock up when the outer race is turned in one direction and to slip when it is turned in the opposite direction. 2. A one-way clutch having cam-profiled locking elements that engage cylindrical outer and inner races.

Spray

The atomization of a liquid into a fine mist.

Spread Bore Carburetor

A four-barrel carburetor having small primary and large secondary barrels.

Spread Tandem Suspension

A two-axle assembly in which the axles are spaced to allow maximum axle loads under existing regulations, usually more than 55 inches (140 cm).

Spring

1. Small steel coils that are used to close the intake and exhaust valves when the cam lobes release pressure on the valve stem. 2. A steel or composite elastic leaf- or coil-like device that compresses as it absorbs energy and returns to its original position when it releases that energy.

Spring Back

The tendency of a material to return to its original shape or near its original shape after being bent.

Spring Bind

A term used for coil bind.

Spring Break Chamber

1. A device used with brake-foundation assemblies as a fail safe unit that automatically applies the truck's service brakes in the event of an air loss. 2. A device used as a parking brake and is used with cam and wedge-type foundation brakes.

Spring Break Valve

1. A device that limits the hold-off pressure to the spring-brake chambers via a relay valve or quick release valve. 2. A device that provides a modulated spring-brake application to the front axle proportional to the service braking pressure whenever a loss of pressure occurs.

Spring Chair

A term used for axle seat.

Spring Energized

A one-way roller clutch that has the rollers held in contact with the cam and race by individual springs, or by means of a spring-actuated cage.

Spring Eye

The main spring-leaf end that is formed in a O-shape for placement of the rubber spring-mounting bushings.