AVMT 256 - Powerplant Group VI: Engine Fuel and Fuel Metering Systems/Lubrications Systems

(3 credits)

Lecture:

Fuel/air ratio and fuel metering and carburetor theory and operation. Float carburetor theory, components, operation, and adjustment. Pressure carburetor theory, operation, and adjustment. Continuous flow fuel injection theory, components, operation, troubleshooting and adjustment. Fuel system operation. Adjusting reciprocating engine fuel control systems. Digital engine control module (FADEC). Hydromechanical fuel control system design and components. Fuel nozzles and manifold design, operation, and maintenance. Components, theory, and operation of turbine engine fuel metering system. Fuel system operation. Adjusting a turbine engine fuel control. Fuel nozzles and manifold design, operation, and maintenance. Inspection requirement for an engine fuel system. Fuel heaters. Fuel lines. Fuel pumps. Fuel valves. Fuel filters. Engine fuel drains. Handling of fuel metering system components that may contain fuel. Considerations during fuel system maintenance. Handling of engine fuel control units that may contain fuel.

Lab:

Identify carburetor components. Identify fuel and air flow through a float type carburetor. Remover and install a carburetor main metering jet. Inspect a carburetor fuel inlet screen. Inspect the needle, seat, and float level on a float type carburetor. Remove and install a float type carburetor. Adjust carburetor idle speed and mixture. Inspect fuel metering cockpit control for proper adjustment. Inspect, troubleshoot, and repair a continuous flow fuel injection system. Adjust a continuous flow fuel injection system. Identify components of an engine fuel system. Remove and install an engine driven fuel pump. Locate and identify fuel selector placards. Inspect a main fuel filter assembly for leak. Inspect fuel boost pump. Adjust fuel pump fuel pressure. Inspect engine fuel system fluid lines and components. Remove, clean, and reinstall an engine fuel filter. Inspect fuel selector valve. Locate procedures for a turbine engine revolutions per minute overspeed inspection. Locate procedures for adjusting a hydromechanical fuel control unit. Locate and explain procedures for removing and installing a turbine engine fuel control unit. Locate and identify a turbine engine fuel heater. Locate the procedures for troubleshooting a turbine engine fuel heater system. Remove, inspect, and install a turbine engine fuel nozzle. Inspect a remotely operated fuel valve for proper operation. Inspect fuel pressure warning light function.

Troubleshoot abnormal fuel pressure. Troubleshoot engine fuel pressure fluctuatio. Determine correct fuel nozzle spray pattern.

This class consists of 3 lessons and 2 labs.

Lubrication Systems

Lecture:

Types, grades, and uses of engine oil. Lubrication system operation and components. Wet sump system. Dry sump system. Chip detectors. Lubrication system maintenance, inspection, servicing, and analysis. Excessive aircraft engine oil consumption. Use of mixing on engine oils. Following other than manufacturer’s recommendations regarding the use of engine lubricants. Handling, storage, and disposal of used lubricating oil.

Lab:

Determine the correct type of oil for a specific engine. Determine approved oils for different climatic temperatures. Locate procedures for obtaining oil samples. Identify oil system components. Identify oil system flow. Inspect an oil cooler or oil lines. Identify turbine engine oil filter bypass indicator. Inspect an oil filter or screen. Perform oil pressure adjustment. Replace an oil system component. Identify types of metal found in an oil filter. Remove and inspect an engine chip detector. Troubleshoot an engine oil pressure malfunction. Troubleshoot an engine oil temperature system.

This class consists of 1 lesson and 3 labs.