Glossary “close ratios” Definition:
Transmission with close spacing between the speeds of the gears, allowing for minimum engine rpm reduction when shifting.
c
closed
Glossary “closed” Definition:
Term that refers to an electrically connected electrical circuit.
closed camber head
Glossary “closed camber head” Definition:
Cylinder head having a combustion chamber with a very large quench or squish area.
closed circuit
Glossary “closed circuit” Definition:
Circuit that is complete from the power source to the load and back to the ground side of the power source. Current flow is equal throughout the circuit, so the conductors have sufficient capacity at any point in the circuit.
closed coat
Glossary “closed coat” Definition:
Type of grid on sandpaper and discs, the resin completely covers the grit. This bonds the grit to the paper or disc more securely.
clock input
Glossary “clock input” Definition:
Input terminal in a circuit where timing or synchronizing signals are applied.
clock circuit
Glossary “clock circuit” Definition:
A crystal that electrically vibrates when subjected to a current at certain voltage levels.
clearing time
Glossary “clearing time” Definition:
Time it takes a circuit breaker to sense an over current, until circuit interruption.
Cleveland V-8
Glossary “Cleveland V-8” Definition:
A popular 351 cid V-8 engine manufactured in Cleveland by Ford.
click type torque wrench
Glossary “click type torque wrench” Definition:
Uses a audible click to indicate when it reaches a preset torque value.
clip
Glossary “clip” Definition:
Major body repair where the front or rear of a vehicle is replaced with the front or rear of another vehicle of the same make and model.
clips
Glossary “clips” Definition:
Devices which hold moldings to the vehicle.
clock
Glossary “clock” Definition:
1). Device for telling time. 2). Term used for odometer. 3). Device that generates a basic periodic signal used to control timing of all operations in a synchronous system or computer. 4). The sequencing, pre-adjustment or placement of components before final assembly.
clearance
Glossary “clearance” Definition:
Space between mating parts, such as between a journal and a bearing, that allows freedom of movement or prevents interference.
clearance ramp
Glossary “clearance ramp” Definition:
Area of a mechanical-lifter camshaft lobe that makes the progression from the base circle to the edge.
clearance volume
Glossary “clearance volume” Definition:
Total volume measurement above a piston at top dead center, (TDC), including the area of the combustion chamber.
Clean Air Act (CAA)
Glossary “Clean Air Act (CAA)” Definition:
A term used for Clean Air Act and its Amendments (CAAA). A Title IV amendment, signed into law in 1990 , that established national policy relative to the reduction and elimination of ozone-depleting substances. The act also includes requirements for oxygenated fuels programs in CO non-attainment areas and reformulated gasoline programs in certain ozone non-attainment areas.
Clean Air Performance Professionals (CAPP)
Glossary “Clean Air Performance Professionals (CAPP)” Definition:
Association of repair shops and technicians promoting inspection and maintenance programs to help protect our environment.
clean room
Glossary “clean room” Definition:
Enclosed, ventilated or air-conditioned area, free of airborne particles where delicate components, such as engines and automatic transmissions, can be assembled with minimal risk of contamination.
clear coat
Glossary “clear coat” Definition:
A hard, transparent coating that is applied to a painted surface to enhance the illusion of visual depth and/or protect the surface.