Onex107 wrote:Mike, I have been there with my AeroInjector also. I notice in your testing you don't consider air intake. I found my problem for not having full power at WOT to be restricted air, not fuel flow, due to an air filter I consider too small for that volume of air, especially if it has a little oil on it. Try it with the filter removed. Adjusting the needle won't change that. Also, the play in the needle holder was nearly 1/2 turn. The needle is free to move until you tighten that ball joint by bending or shims.
SonexN76ET wrote:1. The AeroInjector will not work properly with pressurized or ram air. As air pressure builds up the AeroInjector leans out erratically. Is the intake on the bottom of your cowling pressurizing the air to the AeroInjector?
SonexN76ET wrote:2. Sonex states you MUST have your wheel pants and gear leg fairings on when you are breaking in your engine. On the small Sonex airframe the un faired wheels and gear legs dramatically increase drag and thus cause high engine temperatures and reduced air speeds and reduced engine RPM. John Monnett made a big deal over this at the Builder's workshop I attended.
142YX wrote:
Shown here is the leaning out experiment that I performed on flight #2. As the data shows, EGT's increase by approximately 200F, go over limits, without much gain in RPM (only about ~75). The large RPM drop is what I attribute to roughness, well before the engine developed full power.
With the EGT still connected to your instrument, hold the tip of the probe in the hottest part of a paraffin-based household candle. You should get a reading of 930 deg F (500 deg C) on your instrument. If you do, your sender is good!
gammaxy wrote:With the EGT still connected to your instrument, hold the tip of the probe in the hottest part of a paraffin-based household candle. You should get a reading of 930 deg F (500 deg C) on your instrument. If you do, your sender is good!
gammaxy wrote:If they were significantly leaner than the rest, I expect they might have started to go lean of peak and reached a plateau or decreased in temperature while the others were still rising.
142YX wrote:Yea, from the looks of the temps upstream of the leaning i would certainly agree - looks like #s 5 and 6 are leaner. Maybe the better atomization of the Rotec will help a little bit with the distribution?
sx1094 wrote:Has anybody tried to use a lubricant on the slider inside the AeroCarb to help prevent sticking? Thanks
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