Fuel Pump Repair in Rockwall, TX
Exactly how does a fuel pump work?
A vehicle’s engine burns a mix of fuel and air to generate power. Gas is pumped along a pipe from the tank and is blended with air in the carburettor, where the engine traps the mix. A fuel pump draws in fuel out of the tank via a pipe to the carburettor. The pump could be mechanically operated by the engine – or it could be electric, in which case it is generally near or inside the gas container.
A mechanical gas pump is powered by the camshaft. As the shaft turns, a cam passes under a revolved bar and brings it up at one end. The other end of the bar drops and takes the diaphragm with it. When the lever drops, it develops suction that draws the gas with the fuel pipe and right into the pump. The diaphragm can move up by getting rid of oil from the chamber. The oil can not return through the one-way valve, so it goes out via an additional one that brings about the carburettor. An electric fuel pump has the very same diaphragm-lever layout, but instead of the camshaft, a solenoid (an electromagnetic switch) supplies the pull on the diaphragm. The solenoid reels in an iron pole that brings the diaphragm down, drawing oil right into the chamber.