Glossary “head bolts” Definition:
Bolts that fasten the cylinder heads to the engine block.
What is head?
head gasket
Glossary “head gasket” Definition:
Gasket used to seal the cylinder head to the engine block.
head gasket notch
Glossary “head gasket notch” Definition:
A series of one to four notches used to measure the thickness of a gasket to control the piston-to-head clearance on a diesel engine.
head land ring
Glossary “head land ring” Definition:
Top compression ring with an L-shaped cross section.
head on view
Glossary “head on view” Definition:
Compares the test panel to the vehicle straight on , or perpendicular. Also refers to a reference point to determine front end alignment angles.
head pressure
Glossary “head pressure” Definition:
Pressure of the refrigerant from the discharge valve through the lines and condenser to the metering-device inlet.
head
Glossary “head” Definition:
1). Part of an engine that covers the top of the cylinders and pistons and usually contains the combustion chambers and valve train. 2). That part of a compressor that covers the valve plates and separates the high side from the low side of an A/C system.