Glossary “high solids paint” Definition:
The non-liquid contents of paint needed to reduce air pollutions or emissions when painting.
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high speed inlet air system
Glossary “high speed inlet air system” Definition:
System designed to change airflow characteristics in the intake manifold at higher engine speeds to provide improves torque characteristics.
high speed shake
Glossary “high speed shake” Definition:
Vibration that produces a visible shake and pumping feel in the steering wheel, accelerator pedal, seat, and floor. Common vehicle speed range above 45 mph.
high speed steel (HSS)
Glossary “high speed steel (HSS)” Definition:
An extremely hard alloy.
high speed system
Glossary “high speed system” Definition:
A carburetor main-metering system that supplies fuel to the engine at speeds above 25 mph (40 km/h).
high spot
Glossary “high spot” Definition:
Outward curvature of a normally flat or smooth surface.
high side drivers
Glossary “high side drivers” Definition:
Control of the output device by varying the positive side voltage.
high side pressure
Glossary “high side pressure” Definition:
Term used for discharge pressure.
high side service valve
Glossary “high side service valve” Definition:
Device located on the discharge side of the compressor, permitting the service technician to check the high-side pressures and perform other necessary operations.
high pressure relief valve
Glossary “high pressure relief valve” Definition:
Mechanical device designed so that it releases the extreme high pressures of the system to the atmosphere, used to protect the system from high pressures.
high pressure side
Glossary “high pressure side” Definition:
1). Part of an A/C system, from the compressor outlet to the evaporator inlet, that is under high pressure. 2). Any part of a system, such as fuel injection, that is under high pressure.
high pressure switch
Glossary “high pressure switch” Definition:
Electrical switch activated by a predetermined high pressure.
high pressure vapor line
Glossary “high pressure vapor line” Definition:
Line or hose running from the compressor outlet to the condenser inlet.
high riser
Glossary “high riser” Definition:
1). The raised cylinder heads of the 427 cid Ford engine of the 60’s. 2). Term given to a manifold that places the carburetor above its original design location.
high side
Glossary “high side” Definition:
Term used for discharge side.
high pressure line
Glossary “high pressure line” Definition:
1). Lines or hoses from the compressor outlet to the metering device inlet of an A/C system. 2). Any line or hose that carries high-pressure liquid or gas, such as a power steering pressure hose.
high pressure cutoff switch
Glossary “high pressure cutoff switch” Definition:
Electrical switch activated by a predetermined high pressure to open a circuit during certain high-pressure periods.
high pedal
Glossary “high pedal” Definition:
1). Position of a brake pedal when it is adjusted near the top of its upward travel. 2). Position of the clutch pedal when engaged in high gear in the transmission of a Model T.
high performance speed rating
Glossary “high performance speed rating” Definition:
Rating system used for tires designed for high-performance cars such as SR, HR, and VR.
high performance tire
Glossary “high performance tire” Definition:
Tire having a high performance speed rating, such as SR, HR, or VR.