Glossary “zoomies” Definition:
Exhaust headers that sweep back and up toward the top of the rear tires on an open-wheeled drag racer.
Glossary “zone concept” Definition:
It divides the horizontal surfaces of the vehicle into zones defined by character lines and moldings.. It requires refinishing of an entire zone or zones with basecoat, mica intermediate coats, and clearcoats.
Glossary “Zr” Definition:
Glossary “ZVS” Definition:
Zoned Vacuum Switch
Glossary “zyglow” Definition:
A non-destructive testing system using a dye penetrant and ultraviolet light to check non-magnetic parts for faults and cracks.
Glossary “zinc inner liner” Definition:
Thin zinc-metal leaf between the longer steel leaves of a leaf-spring suspension system to control sliding friction between the leaves, and prevent corrosion on certain models.
Glossary “zing” Definition:
To unintentionally over rev an engine.
Glossary “zip tube” Definition:
Term for fresh air duct or air inlet duct.
Glossary “Zn” Definition:
Glossary “zetta” Definition:
Prefix representing the number 1,000,000,000,000,000,000,000
Glossary “ZEV” Definition:
Zero Emissions Vehicle
Glossary “zinc coating” Definition:
A coating of zinc applied to metal during manufacture to improve corrosion resistance. Also called galvanizing.
Glossary “zero emissions vehicle (ZEV)” Definition:
An electric, Hydrogen,or other vehicles that produces zero levels of HC, CO, and NOx
Glossary “zero lash” Definition:
No clearance between valve lifter and camshaft lobe.
Glossary “zero toe” Definition:
Adjusting the wheels so they point straight ahead.
Glossary “zero gap ring” Definition:
Piston ring that do not have end clearance.
Glossary “zepto” Definition:
The prefix representing the number 0.000,000,000,000,000,000,001
Glossary “zerk” Definition:
Term used for zerk fittings. May also be referred to as a Alamite fitting.
Glossary “zerk fitting” Definition:
Nipple-like lubrication fitting through which grease is applied to a chassis or suspension joint with a grease gun. It contains a small spring loaded check ball, used to retain the applied lubricate, and prevent contamination from entering.
Glossary “zener diode” Definition:
A diode often used in electronic voltage regulators. Allows reverse bias current flow without damage to the avalanche region