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On Jul 13, 2007, at 10:38 PM, Christopher Barber wrote:
Ok, the engine IS running and seems to be running better each time. I want to do the autotune process, however, even tough the engine is running, the EM2 is flashing between NOP and the engine RPM. It flashes between the two while the engine runs. What is this telling me? What does NOP stand for anyway. I must keep reading over it in the manuals. Also, when I start the autotune process, NOP is displayed on the program screen.
Chris, I have spend maybe the most time chasing the NOP/RPM flashing mystery, and still have no answer. I hear it is lack of serial connection between EC and EM? It's Greek to me, and I don't speak Greek :). So I gave up.
Also, I have misplaced my books from Tracy (the Rotary Coversion Guide & the Mazda Papers). Could y'all point me to a link and/or provide some basic engine parameter guidlines such as what is the desired oil temp and water temp, preferred idle speed etc? My oil temp seems to be holding around 190 F and my water was going up past 210. I added an electric fan over the heat exchanger/radiator which help it get there slower. Now, to be fair to my system, this was on a very hot ramp, in a 100 degree Houston summer in bright sun. A bit later it clouded up and the temp went up much slower and was holding at about 190 to 200 ish before I shut down to do other stuff.....
All us pushers have hard time on a hot day waiting for takeoff. With minimal air flow from the prop, waiting online for my turn, I always tried to creep up behind another plane in front, so I can get some air from his prop blast.
Many times I have taken off with the WT of 200-205F, but when it hits 220F I pull back the throttle and lower the nose after takeoff. If you have boil-over, it will expel most of the fluid in one shot. If you are in the air, you'll lose lots of power, but engine will run. Don't shut it down, until you make the runway. After takeoff, It takes few minutes for the temps to start coming down. My cruise temps were on the low side. 160F for water and 137-145F for oil.
I had one boil over while making full power runups on the ground with 16 psi cap. Than I installed a 29 psi racing cap and did not have a problem. In general I'll stay below 220F on oil and water. I know there is some margin, but I was not comfortable above
these numbers.
Buly
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