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Magnequench

A magnetic alloy made form neodymium, iron, and boron. Most commonly used in General Motors starting motors and alternators.

Magnesium

An element, Mg, that is the lightest weight of all structural materials.

Magnet

A piece or iron, steel. Or other magnetic substance which has been magnetized and has a magnetic field surrounding it.

Magnetic Clutch

A coupling device used to turn the compressor on and off electrically.

Magnetic Field

The area of influence of a permanent- or electro-magnet that exists between its north and south poles.

Magnetic Filter

A magnet or magnet assembly located in a fluid system to attract and retain ferrous metal, nickel, and cobalt particles which may be present, composite particles in which a ferro-magnetic material is entrained may also be present.

Magnetic Lines Of Force

The invisible magnetic lines set up between the north and south poles of a magnet.

Magnetic Particle Test

A non-destructive test using a magnet and magnetic particles, such as iron filings, to check iron or steel parts for cracks.

Magnetic Pick Up

The system of an electronic ignition that triggers the amplifier to generate voltage to fire the plugs.

Magnetic Pickup Coil

A small coil of wire would on an iron core in an electric ignition system that is magnetically affected as the reluctor teeth pass by.

Magnetic Poles

The point at which the magnetic lines of force enter or leave a magnet.

Magnetic Switch

A switch energized electrically with a coil of wire serving as an electromagnet, such as in a relay.

Magnetic Timing

[1] A method of measuring ignition timing that uses a magnetic pick-up tool to sense the location of a magnet or slot on the harmonic balancer.

Magnetism

The natural or electrical ability to attract a ferrous metal.

Magneto

An electrical device requiring no outside power source, that generates and delivers current to fire the spark plugs.

Mags

Wheels.

Main

1. The main bearing. 2. The feature event.

Main Bearings

The bearings that locate and support the crankshaft in an engine block.

Main Cap

The structural device that holds the crankshaft in place in an engine block.

Main Hoop

A rollbar placed just behind the driver's seat in a race car.