Robert Sailor
Well Known Member
I recently purchased a very nice RV6A with an IO-320 and Hartzel prop. It has a single Bendix Magneto and an electronic magneto.
When I test flew it I had a mag drop on the Bendix of around 150 rpm and about 10-15 rpm drop on the electronic magneto and the engine ran very smooth.
The lower plugs are fine wire plugs and the upper plugs are a good quality automotive plugs
I decided to put new plugs in the upper ones rather than clean and gap the old plugs.
Now the electronic magneto is dropping around 150 rpm, almost the same as the Bendix and I'm left scratching my head as to what may have caused this. The only thing done was to install new plugs. Anyone have any ideas as to what may have happened. Engine is still running well with both mags on. Robert
When I test flew it I had a mag drop on the Bendix of around 150 rpm and about 10-15 rpm drop on the electronic magneto and the engine ran very smooth.
The lower plugs are fine wire plugs and the upper plugs are a good quality automotive plugs
I decided to put new plugs in the upper ones rather than clean and gap the old plugs.
Now the electronic magneto is dropping around 150 rpm, almost the same as the Bendix and I'm left scratching my head as to what may have caused this. The only thing done was to install new plugs. Anyone have any ideas as to what may have happened. Engine is still running well with both mags on. Robert