Checking magneto is a critical procedure in maintaining the proper functioning of an ignition system, particularly in aircraft engines. A magneto is an electrical device that generates high-voltage pulses to ignite the air-fuel mixture in the engine’s cylinders. Regular inspection and maintenance of the magneto ensure reliable engine performance, prevent ignition failures, and enhance overall safety during flight operations.
The process of checking a magneto involves several essential steps. First, the spark plugs are removed, and a spark plug tester is connected to each spark plug wire. The magneto is then engaged, and the propeller is rotated by hand or using a starter motor. As the propeller turns, the magneto generates electrical pulses, which are transmitted through the spark plug wires to the spark plugs. The spark plug tester will indicate if each spark plug is receiving a strong and consistent spark. This step helps identify any faulty spark plugs or ignition wires.
