Quote:
Originally Posted by bob888
Thanks all. Second question for those with one electronic ignition and one mag...how much rpm drop is acceptable when the ei is cut out for a mag check? I'm seeing 150 rpm drop from 1700 rpm when I switch off the ei.
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It will vary depending upon the mixture. Max allowed is 175 RPM, so 150 is OK and close to normal. Sometimes leaning will lessen the drop. The key is that the engine is still running smooth, which assures you that all of the cylinders are firing.
Vic
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 Vic Syracuse
Built RV-4, RV-6, 2-RV-10's, RV-7A, RV-8, Prescott Pusher, Kitfox Model II, Kitfox Speedster, Kitfox 7 Super Sport, Just Superstol, DAR, A&P/IA, EAA Tech Counselor/Flight Advisor, CFII-ASMEL/ASES
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Author "Pre-Buy Guide for Amateur-Built Aircraft"
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Last edited by vic syracuse : 03-03-2017 at 06:32 AM.
Reason: spelling
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