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SCILM

Abbreviation for Steering Column Ignition Lighting Module (GM).

SCM

1. abbreviation for Steering Control Module (GM) 2. Seat Control Module (GM).

Scope

A term used for oscilloscope.

Scope Pattern

A graphical representation of the change in voltage on the line over a specific period of time.

Score

1. A scratch or small dent in the finished surface of a vehicle. 2. (SCORE) An abbreviation for Short Course Off-Road Enterprises.

SCORE International

The actual name for SCORE.

Scoring

The grooves worn into the friction surface on a brake drum or rotor which may be machined away; if the depth exceeds specified limits, the drum or rotor must be replaced.

SCP

Abbreviation for Standard Corporate Protocol (language) used as the standard for OBDII communications.

SCR

An abbreviation for silicone controlled rectifier.

Scrap Yard

1. A firm selling used parts. 2. A firm that accepts scrap metal for recycling.

Scraper Ring

The second ring from the top of a piston used to scrape oil from the cylinder wall.

Scratch

1. To spin the drive wheels, usually enough to leave a mark on the road surface. 2. A mark on the finish of a body surface made by a scribe or other sharp object. 3. To make a mark on a finished surface using a sharp object, such as a key.

Scratch Built

A vehicle built from the ground up, generally of an original design.

Screamer

A vehicle with spectacular performance.

Screen

A metal mesh located in the receiver, expansion valve, and compressor inlet to prevent partials of dirt from circulating through the system.

Screw

The final drive gear.

Screw End Nut

A common kind of caliper actuated parking brake.

Screw It On

To rapidly accelerate.

Screw It On The Meter

To install an engine on a dynamometer.

Screw-thread Pitch Gauge

A thin material with V-shaped notches that, when matched with a thread of a bolt or nut, indicates the number of threads per inch or millimeter, as well as the thread pitch.