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Channel: Are Lycoming O-360-A4M engines generally known to have right magneto issues at low power settings? - Aviation Stack Exchange
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Are Lycoming O-360-A4M engines generally known to have right magneto issues...

TLDR - I am renting a PA-28 181 (engine Lycoming O-360-A4M), and have noticed that the right mag is rough at low power settings. During before takeoff power checks, both magnetos operate as expected,...

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Answer by Bill Harpole for Are Lycoming O-360-A4M engines generally known to...

The 0-360 like most all aircraft engines have a set of rpm drops that should be close to each other ie 50-75 rpm. The symptoms mentioned are signs of a bad mag or possible plugs. During an annual...

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