AVIATION INTERNATIONAL CONNECTIONS

Magneto Timing Lights / Synchronizers

Overview
These devices measure the change in inductance in the magneto coil when the points open and close. Simply shorting the clip leads together will not indicate a point closing, therefore eliminating any false reading caused by loss of contact to the magneto grounding terminal. To use, simply remove one plug from each cylinder. Connect black clip lead to engine ground. Connect red and green leads to right and left magneto terminals. Turn propeller slowly. When the points open the L.E.D.s will turn off and the audio “tweeter” will sound. The magneto connected to the red lead will sound a rapid beat and the magneto connected to the green lead will sound a slower beat. When both sets of points are open, a third and continuous sound will be emitted. Adjust magneto timing accordingly. 100% solid state, compact 3/4″ x 3″ x 5″ size, long battery life. Color coordinated leads are 4 ft. long. Comes in strong anodized aluminum case. Also available for single magnetos and without tweeter. The single timer is more expensive now because it is a new, updated version or style. This is a deluxe style with tweeter that has a sound system and 4 foot leads.

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Estimated delivery dates: Oct 7, 2026 – Oct 9, 2026

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Description

The ATS Engine Test Kit has all of the test equipment needed to check engine compression, synchronize magnetos, time aircraft engines, and test ignition leads all in one tool box. The complete kit contains our 2EM Differential Pressure Tester with Master Orifice; an 18MMXT Compression Tester Extension Tube; ATS E50A Magneto Synchronizer; an Eastern Technology E25 Timing Indicator; ATS E5A High Voltage Cable Tester; ATS950 Spark Plug Socket and a high impact Tool Box to keep everything organized.

Additional information

Q & A

Q: Will the dual mag synchronizers work if used on a single mag? Per the supplier: Yes, they will work on a single mag.

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