Glossary “insulation” Definition:
Any material that blocks the flow of electricity. Any material containing more than 4 electrons in its valance shell.
i
insulation tape
Glossary “insulation tape” Definition:
Tape (usually cork) used to wrap refrigeration hoses and lines to prevent condensate drip.
install
Glossary “install” Definition:
To set up an accessory part or kit for use in a vehicle.
installed height
Glossary “installed height” Definition:
The distance from the valve-spring end to the valve-spring seat.
instant center
Glossary “instant center” Definition:
An imaginary center point around which a wheel appears to pivot.
instrument panel
Glossary “instrument panel” Definition:
Grouping of indicator lights and gauges designed to inform the driver of current vehicle operations.
insulated return system
Glossary “insulated return system” Definition:
The ground wire of a two-wire electrical system.
inst
Glossary “inst” Definition:
Acronym form of Instrument
inspect
Glossary “inspect” Definition:
To examine a component or system for any audible or visual signs of a defect.
inspection
Glossary “inspection” Definition:
The process of measuring, examining, testing, gauging, or otherwise comparing the unit with the applicable requirements or specifications.
inspection cover
Glossary “inspection cover” Definition:
A removable cover that permits entrance for inspection and service work.
inspection maintenance (I/M)
Glossary “inspection maintenance (I/M)” Definition:
The periodic and systematic inspection and maintenance of a vehicle’s ignition, fuel, and emissions-control systems, commonly used to refer to state / county emissions inspection and testing programs
inside diameter (i.d.)
Glossary “inside diameter (i.d.)” Definition:
The diameter of the inner walls of a pipe or tube.
inside micrometer
Glossary “inside micrometer” Definition:
Used to measure bore or hole size. It may be necessary to use an extension rod to increase the micrometer’s range, if the bore is large.
inside vehicle lubrication services
Glossary “inside vehicle lubrication services” Definition:
Work performed inside the vehicle during a chassis lubrication such as changing the mileage sticker, lubricating the ignition-lock cylinder and the glove-compartment hinges and lock, and inspecting safety-related items.
insert springs
Glossary “insert springs” Definition:
Round wire springs that hold the inserts or shift plates in contact with the synchronized sleeve. Located around the synchronizer hub.
insert valve guides
Glossary “insert valve guides” Definition:
Replaceable valve guides.
insert valve seats
Glossary “insert valve seats” Definition:
Replaceable valve seats.
inserts
Glossary “inserts” Definition:
Metal backing sometimes installed in weld repairs of closed sections, such as rocker panels, pillars and rails.
inside calipers
Glossary “inside calipers” Definition:
Tool design to measure inside parts. They are accurate to about 1/64th of an inch.