AMP - Aviation Maintenance Technician Powerplant Practice Exam

What corrective action should be taken when a carburetor is found to be leaking fuel from the discharge nozzle?

Replace the needle valve and seat. Adjust the mixture control. Adjust throttle linkage. Clean the air filter

Correct Answer:

Replace the needle valve and seat.

Explanation:

If a carburetor is leaking fuel from the discharge nozzle, it is most likely caused by a faulty needle valve and seat. Adjusting the mixture control or throttle linkage will not fix the issue and cleaning the air filter will not address the fuel leak. Therefore, the best corrective action would be to replace the needle valve and seat.

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