The power system includes a fuel tank located at the rear under the body; submerged fuel priming pump, fuel filter with water separator, high pressure fuel pump (injection pump), fuel injectors and connecting fuel lines.
The fuel priming pump delivers fuel to the filter with drier, which is located on the thermostat housing, on the left side of the cylinder head. Excess fuel is drained through the drain hose from the filter to the fuel tank. The fuel filter has a thermostat that regulates the temperature of the fuel. If the temperature in the filter is below 15°C, the fuel thermostat opens and fuel enters the cavity between the filter housings and the cooling system thermostat. There, the fuel is heated by the engine coolant. When the fuel temperature reaches 35°C, the thermostat closes.
The injection pump is driven by a toothed belt at a speed that is half the speed of the crankshaft.
The pressure required to inject fuel into the swirl combustion chambers is generated by two pump plungers. The operation of the injection pump is controlled by a centrifugal regulator. The regulator is connected by a rod to the control valve, which increases or decreases the amount of fuel injected into the cylinders.
Fuel is supplied to the cylinders by injectors that inject fuel into the vortex chambers in the form of a finely atomized jet.