Apr 25, 2024  
Catalog 2023-2024 
Catalog 2023-2024

AUM 192 Automotive Diesel Engines

Lecture Hours: 2
Lab Hours: 3
Credits: 3

Covers construction, working principles, and methods of servicing automotive diesel engines.

Recommended: Completion of AUM 151  and AUM 168 , each with a grade of C or better.

Student Learning Outcomes:
  1. Understand diesel engine operation and the difference from gasoline engines.
  2. Perform personal and environmental safety practices associated with clothing, eye protection, hand tools, power equipment and handling. 
  3. Identify the engine block, cylinder head, timing mechanisms, and intake & exhaust construction & operation. 
  4. Understand how the cooling, lubrication and fuel systems function. 
  5. Demonstrate knowledge of the fuel injection system, delivery (mechanical & electronic) and the different types of injectors. 
  6. Identify the key components of the starting, charging, electronic inputs and emission control systems. 
  7. Understand how to diagnose, test, service and maintain diesel engines. 

Content Outline
  • Introduction to Diesel Engines
    • Diesel engines terms, engine cycles, systems and circuits and an understanding of diesel fuels.
  • Shop and Personal Safety
    • Explain the types of personal safety equipment available, different types of fire extinguishers, shop equipment precautions and electrical safety.
  • Cylinder Block Assemblies
    • Introduction to block construction, piston assemblies, piston rings, wrist pins, connecting rods, crankshafts, bearings, vibration dampeners, flywheels and oil pans.
  • Timing Gear Train and Cylinder Head Assemblies
    • Introduction to cylinder heads, timing gears, camshafts, valve and injector trains, valves and springs.
  • Intake and Exhaust Systems
    • Overview of the breathing circuit, system components, turbochargers, charge air coolers, exhaust gas recirculation, valve design and exhaust components.
  • Cooling and Lubrication Circuits
    • Introduction to the cooling system, coolant, components of the system, circuit management and cooling system problems. Introduction to the lubrication circuit, components and lubrication problems.
  • Fuel Subsystems
    • Introduction to the fuel subsystem, fuel tanks, fuel filters, charging and transfer pumps and monitoring the fuel subsystem.
  • Injector Nozzles
    • Introduction to injectors, multiple-orifice nozzles, electrohydraulic nozzles and nozzle testing.
  • Pump-Line-Nozzle Injection System
    • Introduction to pumps, pump components, delivery, injection, combustion, opposed-plunger pumps, inlet-metering pumps, sleeve-metering and single plunger distributor pumps.
  • Electronic Diesel Fuel Injection Systems
    • Introduction to EUI’s, HEUI’s, input circuits and common rail fuel systems.
  • Charging and Starter Circuits
    • Introduction to charging circuits, alternator operation, starter operation, cranking circuit components and electrical troubleshooting.
  • Engine Electronics
    • Introduction to the input circuit, the computer, the output circuit, multiplexing and computer reprogramming.
  • Emission Controls
    • Introduction to carburetors, causes of smog, diesel emission controls, catalytic convertors, particulate filters, selective catalytic reduction, noxious emissions and smoke analysis.
  • Servicing and Maintenance
    • Introduction to literature and repair information, start up and break-in, air intake systems, engine lube service, cooling system service, fuel system service, selective catalytic reduction fluid service and particulate filter service.
  • Diagnostics and Testing