Glossary “cam lobe face and nose taper” Definition:
The slant, about 0.002 inch (0.051mm), designed across the cam-face contacting surface, from the cam front to rear edge, to promote lifter rotation.

Glossary “cam profile” Definition:
Shape of the cam lobe, used to determine duration and lifter type.

Glossary “cam sensor” Definition:
Camshaft-mounted sensor that signals when cylinder number one is at TDC.

Glossary “cam shaped pocket” Definition:
The recess in an overrunning clutch race, large at one end, tapering smaller at the other end.

Glossary “cam follower” Definition:
Term used for valve lifter.

Glossary “cam ground” Definition:
Pistons machined to a slightly out-of round shape to permit them to expand with engine heat without getting binding against the cylinder walls.

Glossary “cam ground lining” Definition:
Brake shoe lining that has been arced or formed so that it is thinner at the ends than at the center, and the lining surface is not a portion of a circle with a constant radius.

Glossary “cam ground piston” Definition:
Piston ground slightly oval or elliptical in shape as a means to compensate for expansion caused by heat.

Glossary “cam lift” Definition:
The distance, in thousandths of an inch, a cam lobe raises the valve lifter off the base circle.

Glossary “cam lobes” Definition:
Egg-shaped lobes that are used to open and close the valves at the correct time.

Glossary “cam duration” Definition:
The amount of time, measured in crankshaft degrees, that a camshaft holds an exhaust or intake valve open.

Glossary “cam angle” Definition:
A term often used for dwell angle.

Glossary “cam button” Definition:
Device that keeps a camshaft properly positioned in an engine.