C9.3 Marine Generator Set Engines Caterpillar


General Information

Usage:

C9.3 C93


Illustration 1g03822761
Left side view
(1) High Pressure Fuel Pump
(2) Fuel Rail
(3) Electronic Control Module (ECM)
(4) Flywheel housing
(5) Fuel transfer pump


Illustration 2g03822784
Right side view
(6) Turbocharger
(7) Exhaust Manifold
(8) Fuel Filters
(9) Water Pump
(10) Oil Filter

The engine is an in-line six cylinder engine. The firing order of the engine is 1-5-3-6-2-4. The engines rotation is counterclockwise when the engine is viewed from the flywheel end of the engine. The engine utilizes a turbocharger and an air-to-air aftercooler. The engine has a bore of 115.0 mm (4.53 inch) and a stroke of 149.0 mm (5.87 inch). The displacement is 9.3 L (568 cu in ).

The fuel system eliminates many of the mechanical components that are used in a pump-and-line system. The fuel system also provides increased control of the timing and increased control of the fuel air mixture. The timing advance is achieved by precise control of the fuel injector timing. Engine rpm is controlled by adjusting the injection duration. A special pulse wheel provides information to the ECM for detection of cylinder position and engine rpm.

The engine has built-in diagnostics in order to ensure that all of the components are operating properly. In the event of a system component failure, the operator will be alerted to the condition. An electronic service tool can be used to read the numerical code of the faulty component or condition.

Starting The Engine

The engines ECM will automatically provide the correct amount of fuel in order to start the engine. If the engine fails to start in twenty seconds, release the starting switch. Allow the starting motor to cool for two minutes before the starting motor is used again.

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