AM.III.I.S5
SkillRemove and install a carburetor main metering jet.
From the FAA library
- Chapter 2: Engine Fuel & Fuel Metering Systems › Float-Type Carburetors › Main Metering System
Main Metering System The main metering system supplies fuel to the engine at all speeds above idling and consists of: 1. Venturi, 2. Main metering jet, 3. Main discharge nozzle, 4. Passage leading to the idling system, and 5. Throttle ... valve. Since the throttle valve controls the mass airflow through the carburetor venturi, it must be considered a major unit in the main metering system as well as in other carburetor systems. A typical main metering system is illustrated…
- Chapter 2: Engine Fuel & Fuel Metering Systems › Carburetor Maintenance
Carburetor Maintenance The removal procedures vary with both the type of carburetor concerned and the type of engine on which it is used. Always refer to the applicable manufacturer’s technical instructions for a particular installation. Generally, the procedures ... much the same, regardless of the type of carburetor concerned. Before removing a carburetor, make sure the fuel shutoff (or selector) valve is closed. Disconnect the throttle and mixture control linkages, and lockwire the throttle valve in the closed position…
- Chapter 2: Engine Fuel & Fuel Metering Systems › Pressure Injection Carburetors › Fuel Control Unit
power enrichment valve is another poppet-type valve. It is in parallel with the auto-lean and auto-rich jets, but it is in series with the power enrichment jet. This valve starts to open at the beginning ... power range. It is opened by the unmetered fuel pressure overcoming metered fuel pressure and spring tension. The power enrichment valve continues to open wider during the power range until the combined flow through the valve and the auto-rich…