Skip to main content

Mechanical fuel pump

Mechanical fuel pump Cam lobe Camshaft Actuating lever Return spring Diaphragm centre Diaphragm Inlet valve Chamber Exit valve

In a mechanical pump the actuating lever moves up and down constantly, but pulls the diaphragm down only as needed to refill the pump chamber. The return spring pushes the diaphragm up to deliver petrol to the carburettor.

icon-search