I was doing a run up check and I had something odd happen. I took the rpm up to 1700 rpm. I checked the right mag and the rpm dropped to 1550 rpm. Back to both and it went back to 1700 rpm. Left mag check, the engine started dying. Went back to both and it went to 1700 rpm. I repeated it several times ? both 1700, right 1550, left ? engine dies.
I got an A&P mechanic and we discussed it. Our conclusion was the Slick mags were ok because of the rpm rise from just right mag to both mags. It seemed like the most logical explanation was the ignition switch. We installed a new ignition switch. Tried the mag check again and the results were the same ? both 1700, right 1550, left ? engine dies.
Any ideas?
Dave Syvertson
I got an A&P mechanic and we discussed it. Our conclusion was the Slick mags were ok because of the rpm rise from just right mag to both mags. It seemed like the most logical explanation was the ignition switch. We installed a new ignition switch. Tried the mag check again and the results were the same ? both 1700, right 1550, left ? engine dies.
Any ideas?
Dave Syvertson