AnInjection Pumpis the device that pumps fuel into the cylinders of aengine Traditionally, the pump is driven indirectly from thecamshaft by gears, chains or a toothed belt . Fuel injection pumps should be removed on a regular basis and tested and calibrated to assure that the each pump delivers the correct amount of fuel. Fuel injection pump should be calibrated to ensure that they deliver the correct amount of fuel. Fuel injection pump test rig is use to calibrate and test the fuel injection pump use in locomotive engines. Fuel injection pump delivery is measure through flowmeter in the form of discharge volume. The measurement is display on computer and Discharge volume meter.