At 14:35 -0800 11/22/08, keithmckinley wrote:
><keith.mckinley@townisp.com>
>I purchased an MGL E-3 digital engine gauge to display EGT. The
>gauge is capable of displaying rpm as well.
>
>Since there is a single wire to from the unit (for rpm) I would
>think it is impossible to show the rpm on both mags as well as
>individually during a mag check. I can connect to the P-lead of
>either mag and get an indication but it is only for that mag of
>course.
If you get a different reading from two mags, both of which are
connected to the same camshaft, you're not measuring RPM, you're
checking for a bad mag. You could put a double throw switch in the
line.
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