What is heat?

heat tab

[box style=”0″]Glossary “heat tab” Definition:
A small aluminum disk attached to the cylinder head or block having a lead center designed to melt at 260¡ãF, to indicate if the engine has been overheated.[/box]

heat sink

[box style=”0″]Glossary “heat sink” Definition:
1). A finned, aluminum housing that dissipates heat and serves as a base on which electrical components, such as semiconductor devices, are mounted. 2). A heat dissipating section of the alternator that holds the insulated diodes or all the diodes, and carries heat away from the devices.[/box]

heat riser valve

[box style=”0″]Glossary “heat riser valve” Definition:
Control valve between the exhaust manifold and exhaust pipe that restricts the flow of exhaust, causing it to flow back through the heat-riser channel under the intake manifold. It acts as an aid to fuel evaporation and to speed engine warm-up.[/box]