Glossary “pump screen” Definition:
Filter to remove debris from a fluid before it enters the pump.

Glossary “pump rotors” Definition:
Parts of a positive displacement pump that uses rotating rotors to develop flow.

Glossary “pump impeller” Definition:
1). Part of a fluid pump that causes the fluid to move. 2). The output drive member that receives its power from the engine.

Glossary “pump link” Definition:
In a mechanical fuel pump system, a short, connecting part between the pump rocker arm and the diaphragm on certain models.

Glossary “pump reservoir” Definition:
Provides fluid and a reserve for proper pump operation.

Glossary “pump housing” Definition:
Casting which surrounds the enclosed gears, rotors or vane mechanism and which faces the pump cover or stator support.

Glossary “pump air bleed” Definition:
Small vent hole(s) in the mechanical fuel pump body that allow air to enter and leave the pump as the diaphragm moves back and forth.

Glossary “pump cover” Definition:
Rear casting which faces the pump housing and its enclosed gears, rotor and vane mechanism. Also called “Stator support”.

Glossary “pump gas” Definition:
Standard gasoline without any additives.