Unit 4 Diesel Fuel Systems
The diesel fuel injection system is a major component of a properly
operating engine for trucks, coaches, and heavy construction vehicles.
An engine out of adjustment can cause excessive exhaust smoke, poor fuel
economy, heavy carbon buildup within the combustion chambers, and short
Here you will learn about the different type of diesel fuel systems,
how the components function to provide fuel to the engine in proper
quantities, and servicing of the diesel fuel systems.
4-1 Diesel Fuel Systems
Learning Objective: Identify the properties of diesel fuel.
Describe the function and operation of governors and fuel system
4-2 Methods of Injection
Learning Objective: Describe the principles and operation of the
different diesel fuel systems.
4-3 Superchargers and Turbochargers
Learning Objective: Describe the operation of and the
differences between superchargers and turbochargers
4-4 Cold Weather Starting
Learning Objective: Identify the different types of cold weather starting
4-5 Diesel Fuel System Maintenance
Learning Objective: Describe the basic maintenance required for a diesel
4-6 General Troubleshooting
Learning Objective: Describe general troubleshooting techniques used in
the maintenance of a diesel fuel system.