|
Ed,
I think he added this feature after you flooded
your engine at the 07 Roundup. Mine doesn't have this safety feature
either.
Bill Schertz
KIS Cruiser #4045
N343BS
Phase I testing
----- Original Message -----
Sent: Monday, May 25, 2009 4:11 PM
Subject: [FlyRotary] Re: Significant
insignificant triumph
Humm, turning on the
cold start switch to run the injector simulator
mode?
Tracy, does this only
apply to the EC3? I have never turned on the cold start switch when
using the injector simulator mode.
Ed
From:
Rotary motors in aircraft
[mailto:flyrotary@lancaironline.net] On
Behalf Of Tracy Crook
Sent: Monday, May 25, 2009 3:37
PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: Significant
insignificant triumph
Just a quick comment Chris.
I'm
assuming that you were running the injector test when you talked about the
injectors 'chattering away' until you turned on both sets causing them to
stop. If so, I'm guessing you forgot to turn on the cold start switch
before running the test. Turning off one set also turns on cold start so
it masked the oversight.
Tracy
On Mon, May 25, 2009 at 5:41 AM, Christopher Barber
<CBarber@texasattorney.net>
wrote:
I am hoping not to jinx myself, however, I got my
electronics back from Tracy a few days ago. I had sent them in
following my latest engine build. If ya'll remember, my lasted engine
build failed. due to the failed O-ring wall in a brand new intermediate
plate. While waiting, I have been cleaning up my install.
Well,
yesterday I reinstalled the electronics and was able to fire her up. Ok,
here is the part that is significant to me....After running her for several
minutes, with good coolant temps (but considerable higher oil temps....no
worries yet, it is a new radiator and oil coolers (2) install and needs better
ducting to the oil coolers) I shut her down AND then started her right back
up.
Not a big deal to most, but the consistent problems I have
had with my engine was that after I had run them for a short while they would
not restart for hours. In both the previous builds I found coolant in
the rotor chambers....the second build problem from the aforementioned
center plate failing (still not sure about the first build problem, other than
me overheating it, running w/o load etc all in a wonderful education though
mistake learning curve <g>). Coolant would seep in....or, in the case of
the last build, gush in. While the engine would start initially, it got
harder and harder. When this pattern repeated is when I discovered the
broken center plate.
I know it may not seem too significant to most,
but to me, to be able to shut her down then just start her right back up gives
me a quiet joy I can't explain. Also, I went back to the hangar tonight
after work, pushed out the Velocity turned on the switches, cracked the
throttle about 1/3 (no priming needed....I may have been flooding her a bit
before) and she fired right up again. Shut down, and the same thing again, she
started right up. Such joy at such a little event. It was about
2:00 am by this time (I get off duty at 11:00pm), so I retired for the
night......good thing the airport hangars are far from all homes. Of
course even my rotary roar is no match for the jets (military, civilian and
NASA) constantly taking off from EFD when it comes to noise, even at
2:00am.
NOW, perhaps, I can get to some actual progress in tuning the
EC2/EM2 and trouble shooting. Wahoo. I am guessing I will have
many of the concerns of those before me. Right now, it is missing a bit
and some surging, but I feel I can (hopefully) get to the meat of tuning if I
can get clean starts and keep the temps down while doing so. The much
larger radiator/fan is helping. The oil cooler is larger than before but
I think the fan for the radiator is stealing some airflow from the oil
cooler. An issue I see a couple of potential solutions for. In any
case, all the temps stay cooler longer than my last incarnation
Also, I
am having some injector problems, but I think it should be just a simple
wiring problem.....possibly a good old fashion short. The primaries and
secondary's both have power from different sources, if I have power to either
of them separately, they chatter away. however, if I turn on the power
to both at the same time, they both stop. It also has wanted to stop
completely when I got over about 4000 rpm (even if I do not want to take it
much higher than that yet due to it still breaking in, I do know the engine
should not just quit.....gee, ya think ;-). Hmmmm, time to trace wires and
connections. I do not think it has anything to do with the EC/EM.
Just one more thing to figure out.
Thanks for allowing me to share my
latest chapter in the continuing Saga. I hope to see a lot of y'all on
Saturday.
All the best,
Chris Barber
Houston
|