Manifold Pressure jumping
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Hello, since some time (about 2 weeks) I have noticed that the manifold pressure gauge is wobbling, even when I don't move the throttle lever. I tried unplugging all my hardware and the issue still persists. And I checked that I have no active failures. I also reinstalled the Bonanza, but the issue is still there. Video of the issue (on the video I'm gradually advancing my throttle).
Regards, Jan
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Your spark plugs have become severely fouled. If you look on the tablet visualizer, you will see red creeping up the bodies of your spark plugs, and you will see some of them failing to generate a spark. This results from overly rich mixture settings at low RPM for a prolonged time, usually while sitting on the ground. This parameter is also persistent between flights. There is a procedure to clean the plugs, involving raising the temperature of the cylinders to burn off these carbon deposits, or you can just press the "clean plugs" button on the tablet. You can read more fouling, cleaning procedures, and the engine visualizer indications in the manual. I hope that helps
