Aviation Mechanic - General, Airframe, and Powerplant › III. Powerplant › Task I. Engine Fuel and Fuel Metering Systems

AM.III.I.K7

Knowledge

Fuel nozzles and manifolds design, operation, and maintenance.

Study note

Get a short, cited explanation of this element written from the FAA handbooks: the core idea, the numbers that matter, common test traps, and a quick self-check.

From the FAA library

Aviation Maintenance Technician Handbook - Powerplant p. 10-33
Chapter 10: Engine Maintenance & Operation › Factors Affecting Engine Operation › Idle Mixture
In general, the idle adjustment affects the air-fuel mixture up to…
Aviation Maintenance Technician Handbook - Powerplant p. 2-40
Chapter 2: Engine Fuel & Fuel Metering Systems › Fuel Control Maintenance › Fuel System Operation
Water Injection System Fuel Control Maintenance Fuel System Operation The fuel pump receives fuel from the airplane fuel system. The low pressure boost stage of the pump pressurizes the fuel and sends it to the fuel/oil cooler (FOC). The fuel ... flows from the FOC, through the fuel pump filter element, and then to the high pressure main stage of the pump. The high pressure main stage increases the fuel pressure and sends it to the fuel metering unit…
Aviation Maintenance Technician Handbook - Powerplant p. 2-43
Chapter 2: Engine Fuel & Fuel Metering Systems › Engine Fuel System Components › Fuel Spray Nozzles & Fuel Manifolds
Fuel Spray Nozzles & Fuel Manifolds Although fuel spray nozzles are an integral part of the fuel system, their design is closely related to the type of combustion chamber in which they are installed. The fuel nozzles inject fuel into ... completed evenly, in the shortest possible time, and in the smallest possible space. It is very important that the fuel be evenly distributed and well centered in the flame area within the liners. This is to preclude the formation…