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Bruces Web Site
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Date: 2-13-2014
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Number of Hours: 4.00
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Manual Reference:
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Brief Description: Run motor, chase issues
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Pulled it out and ran the motor. Interesting, it started in about two blades but I lost it when I was not fast enough to move the mixture out of idle cut-off. Then it ran fine. RPM was 27000 plus at idle ?? Switching off the electronic ignition it was different, RPM seemed about right but not really. Ran for a few minutes and tried to get the prop to cycle. Finally after about four tries it did some. Had no idea what the rpm was, but it was low. Idle showed at about 1500. Jim came in and checked it out for leaks or other bad things happening. Leak on the bottom at the quick drain.
Everything else was Ok, the alternator was working, all temperatures and pressures were within normal ranges. The governor did not do much until at least four tries at pulling it back. No oil in the system Shut it down and pulled it in the shop.
Researched the rpm. Obviously didn't have the correct something, either the resistor on the "P" lead was wrong, and Light Speed ignition was totally different. Reviewed manuals and found that Light Speed said their rpm output was 10+ volts, where the Skyview manual said for low volt systems such as Light Speed, use the low volt inpu, which I didt. Called their support and they said that the low volt input would work just as well as the normal, so leave it as is. Great, don't have to switch pins on the plug. Called Light Speed and they said that the output was 3 pulses per revolution for a 6 cylinder system. (Suggested that they put it in the manual) Reset the Skyview.
Ran the motor again and the light speed (when the mag was off) made sense. The mag value was still way off (the system uses the mag input or Light Speed when the mag is off such as when you are doing a mag drop test) Ran it with the mag off. Did a governor test when the oil was about 100 degrees and the rpm was 1700 and it responded normally. Mag rpm is still off. Taxied it to the runway with the brakes on to break them in.
Did some research and found that the mag reads 1.5 pulses per
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