R magneto installation direction

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smoss
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R magneto installation direction

Post by smoss »

On my plane, my right side (passenger side) mag has always been installed "upside-down", with the P-lead on the bottom, and a huge pain to get to every year. 2 questions... First, is everyone's like this, or did someone before my ownership flip it over during re-installation. Second, considering you can just install it either way after pinning the L hole in the mag, is there any reason not to put it with the P-lead up? It seems all the wire connections would reach either way, and it would be a whole lot easier. The ignition harness would, of course, need to be flipped over, which would require a fair bit of rerouting the spark plug wires.
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Steve
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Re: R magneto installation direction

Post by Steve »

Mine was like that from the factory (R mag with the P lead terminal on the bottom). Although I did replace the mags with new ones and had the originals overhauled about 200 hours ago, we installed them in the same configuration.
DSCN5933.jpg
If you look at the picture of my engine when I pulled it last Summer to fix the loose set screw issue, it appears that if you flip the R mag to put the P lead terminal on top, there could be two possible issues:

1) The RPM Hall effect sensor would be moved outboard, and the cable/connector for it might be too short;
2) The oil cooler line connector (inboard of the mag) appears like it might interfere if the mag were flipped 180 degrees;

plus, the Lycoming manuals show it installed as it is on our engines...

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smoss
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Re: R magneto installation direction

Post by smoss »

Ah... the oil cooler line does look like it would be an issue. The RPM lead is plenty long. Bummer. Thanks.
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Rich
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Re: R magneto installation direction

Post by Rich »

As it happens I was examining my right mag yesterday as a side effect of fiddling with the Surefly. I can't, for the life of me, figure out how I ever got that thing out to get it serviced :scratch:
2002 DA40-180: MT, PowerFlow, 530W/430W, KAP140, ext. baggage, 1090 ES out, 2646 MTOW, 40gal., Surefly, Flightstream 210, Orion 600 LED, XeVision, Aspen E5
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gsontheimer
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Re: R magneto installation direction

Post by gsontheimer »

What is your experience with the SureFly Mag/EI? Did you replace the R/H or L/H Mag?
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Re: R magneto installation direction

Post by Rich »

gsontheimer wrote: Thu May 21, 2020 8:02 am What is your experience with the SureFly Mag/EI? Did you replace the R/H or L/H Mag?
Left for me. See this thread for the continuing saga:

viewtopic.php?f=24&t=6721
2002 DA40-180: MT, PowerFlow, 530W/430W, KAP140, ext. baggage, 1090 ES out, 2646 MTOW, 40gal., Surefly, Flightstream 210, Orion 600 LED, XeVision, Aspen E5
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