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[quote][Good luck, I hope it gives you a life time of service and by "life time", I'm not talking about your life./QUOTE]
YIKES!! Competing vendor?? Yep. Sounding political. Can?t we all just get along? |
Rpm output
We solved the RPM issue going from Mags with Hall effect sensor to electronic ignition. We install the UMA Tach drive unit but had it built with ONLY two magnets instead of the standard 4 magnets. UMA will do this, no problem, now I get one pulse per crankshaft revolution, just like I did with the Hall effect sensor on the magneto.. It is 5v square wave output. Were now running dual Surefly and with the tack drive rpm sender, we get rpm readout even when we do a mag drop run up test.. we hope this helps...
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Since SureFly is set up for Slick caps and harness it would require adapting either the leads or the sparkplug caps to automotive style. Remember SureFly is towing the line for type certified aircraft. In the case of my Husky I kept the Slick harness and massive electrode plugs as changes were not allowed under the STC.
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Removed my Slick I/C left mag and installed a Surefly EIS in my 7A ,(0-375), this weekend . Fairly easy job, but took some time due to tight working space; (however, installing the gear cotter pin was no picnic!) After correcting a dumb error on my part, got the timing set correctly and the engine is now running great.... very quick on starting. I also installed a new harness and spark plugs. I have a three blade Catto prop and have not have any kick back issues, ( timing is set at TDC #1 as per instructions).
First flight test should be Wed..... |
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Surefly tach
The reason for having a working tach, in my mind, is that it helps with the Mag check. When I do a mag check I am checking both sides and seeing if there is a large difference between both, although I have never had an issue I have seen the gap spread at runup and that told me it was time to do a retiming. With Surefly if you have no RPM and your Mag goes, than you have no tach reading and you need to fly it by "ear". You want that Tach connected to both the Mag and the Surefly for a mag check and mag or Surefly failure. There is a reason why Skyview has two connections- for two Mags or one EI and one MAG. Use them both is what I would plan for.
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I also have one mag (left) and a Surefly. My Tach sensor for my Advanced EFIS
is on the magneto. Even if the mag fails, you will still get a tach reading as long as the mag shaft is turning (if it isn't, you have bigger problems). I don't lose tach readings during mag checks. |
As both of my mags were wired to Dynon EMS via P leads, sounds like I need to either get the Surefly tach board , OR install a magnetic pickup tach sender in the remaining slick mag. This tach sender would be connected to left side tach input on Dynon EMS, ( per Dynon install instructions). As Tom said, as long as mag is turning, tach info will be sent. This would solve the run up check issue as I would not lose rpm info when running on Surefly alone.
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