Circuit/System Description

Fuel is drawn by the fuel injection pump through a pre-filter screen in the tank and to the engine through the fuel supply lines. Fuel flows to the fuel filter/heater element housing, which combines a water separator, a hand prime pump, fuel heater element and a filter element. The fuel is then delivered to the high-pressure pump. The integrated hand pump is used to prime the fuel system after changing the fuel filter or servicing the fuel system. The mechanical fuel injection pump at the front of the engine valley includes the fuel supply pump and the high-pressure pump.