SERV1851 02/08
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Text Reference Engine
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C4.2 ACERT™ ENGINE The 311D/312D/314D Excavators are equipped with a C4.2 ACERT™ Engine. The C4.2 engine is a 4.2 liter engine that uses a common rail fuel system. The common rail fuel system includes an electronically controlled high pressure fuel injection pump, a fuel manifold, and electronically controlled injectors. The A4:E2 Engine ECM controls the pump solenoid, which controls the injection pump fuel flow through high pressure lines to the fuel injectors. The Engine ECM also controls the on/off fuel injector solenoids. The C4.2 ACERT™ engines meet U.S. Environmental Protection Agency (EPA) Tier III Emissions Regulations for the North America market and Stage IIIa European Emissions Regulations. NOTE: This presentation provides an overview of the common rail fuel system and covers 311D/312D/314D Excavators engine component locations. For detailed information on the C4.2 ACERT™ Engine, refer to Service Training Meeting Guide "C4.2/C6.4 and C4.4/C6.6 ACERT™ Engines with Common Rail Fuel System--Machine Applications" (SERV1837).
