I used Sonex coils and a John Deere voltage regulator.
Do you have cooling ducts to your coils?
Tom Helm OneX 0137
I do not.
Ohm checked left ignition coil, it was dead so replaced. Secondary ignition now running normal again.
A little history on my IAS problem. About a year ago I added the UAvionics ADSB altitude encoder required by a service letter. I simply tee’d it into the static line as recommended. That is likely when the static line to the Xtreme EFIS was inadvertently left off or came off during reassembly. That is also when I began noticing higher IAS at stall. So recently, after reconnecting the static line, (and accidentally introducing water to the pitot system from the Manometer), IAS was extremely low, less than 20 at stall and at least 20 lower thru out. After blowing out the pitot line, twice, and hooking everything back up, I did another test hop and IAS now appears more normal although I didn’t get a chance to check it at stall. I am still suspicious it reads low. I am now wondering if the additional ADSB encoder to the static system may have contributed to the IAS issues. Another test flight to evaluate stall speeds will confirm. For those who may be concerned about my flying with inaccurate IAS, I also have a separate Lift Management indicator (Angle of attack) so IAS less important to me.
Tom Helm, OneX 0137, AeroVee
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Update on IAS issue. I finally tied in a regular airspeed indicator and did another manometer test comparing the two indications. The MGL Extreme was definitely wrong. I was able to adjust it up to match the real airspeed indicator, however, it needed to be set to 128% to match. I have communicated with the new MGL dealer who agrees something is amiss with the Extreme saying that there may be a need to replace some capacitors in the unit. I am now considering sending the unit for analyses and repair.
TNHelm OneX 0137
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