50
OXE 150/200 HP SERVICE MANUAL
SYSTEM AND ASSEMBLY OVERVIEWS
FUEL SYSTEM DESCRIPTION
Fig. 11
Fuel system
The fuel enters the engine via the fuel filter and water separator.
The mechanical fuel injection pump output is controlled by the engine control module (ECU), and provides fuel
at the pressure needed by the fuel injectors. The fuel injectors supply fuel directly to the combustion chambers
of the engine.
The mechanical fuel injection pump, fuel rail pressure, fuel injection timing, and injection duration are
controlled by the ECU.
External fuel filter
(Not provided by Cimco Marine)
The 30-micron fuel filter is equipped with a water separator and installed after the fuel tank, on the suction side
of the fuel system, between the fuel feed tank and the electric fuel feed pump.
External fuel pump
The electric fuel feed pump is mounted outside the fuel tank and is operated by the engine's ECU. An electric
pump motor pushes fuel from fuel tank to the engine through fuel lines.
Fuel filter on engine
The fuel filter is a one-piece fuel filter water separator of snap-on model.
Fuel rail pressure pump
The fuel injection pump is a mechanical high pressure pump. Fuel is pumped to to the fuel rail at a specific
pressure. Fuel pressure is regulated by the fuel pressure regulator, which is controlled by the ECU.
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