For anyone who has installed the IO-360M1B with the Skyview EMS:
The Skyview installation manual instructs that for those engines (using conventional magnetos) that do not have a dedicated tachometer transducer (and it would appear that this Lycoming engine does not), then the tachometer input comes from wires with resistors added that run from each of the two ignition switch P-Lead terminal to the EMS harness. The instructions specify to install the resistors as close as possible to the P-Lead pick off point so as to minimize the length of wire that carries high voltage spikes.
So, two things: does this wire to the EMS pose any potential grounding issues for the magneto whereby the mag is not grounded when you think it is (or it is grounded when you think it isn't)? Also, if the resistor is added right off the P-Lead terminal on the ignition switch, is this sufficient to avoid electrical noise presuming unshielded wire is used for the EMS sensing?
Thanks much for any input on this.
The Skyview installation manual instructs that for those engines (using conventional magnetos) that do not have a dedicated tachometer transducer (and it would appear that this Lycoming engine does not), then the tachometer input comes from wires with resistors added that run from each of the two ignition switch P-Lead terminal to the EMS harness. The instructions specify to install the resistors as close as possible to the P-Lead pick off point so as to minimize the length of wire that carries high voltage spikes.
So, two things: does this wire to the EMS pose any potential grounding issues for the magneto whereby the mag is not grounded when you think it is (or it is grounded when you think it isn't)? Also, if the resistor is added right off the P-Lead terminal on the ignition switch, is this sufficient to avoid electrical noise presuming unshielded wire is used for the EMS sensing?
Thanks much for any input on this.