FUEL METERING PUMP

TM 5-2420-222-20-1

FUEL SYSTEM - CONTINUED

FUEL METERING PUMP

Distributor type injection pump driven by crankshaft through timing gear train.

Delivers fuel under high pressure to each fuel injection nozzle at correct time for fuel burning efficiency at each

cylinder.

Houses fuel shutoff solenoid which cuts off fuel flow when ignition circuit is interrupted, to shut down engine.

FUEL METERING PUMP-TO-FUEL INJECTION NOZZLE INLET TUBES (4)

Route pressurized fuel from fuel metering pump to four fuel injection nozzle inlets.

FUEL METERING PUMP-TO-FUEL INJECTION NOZZLE LEAK-OFF CAP TUBE

Routes excess fuel and any air through fuel injection nozzle leak-off caps for return to fuel tank.

FUEL INJECTION NOZZLES (4)

Activated by pressurized fuel distributed by fuel metering pump.

Atomize fuel and spray it into combustion chambers of each cylinder in turn.

Excess lubricating fuel is directed to leak-off caps for return to fuel tank.

LEAK-OFF CAP-TO-FUEL TANK FUEL LINE

Routes excess fuel from fuel injection nozzle leak-off caps back to fuel tank.

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