X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from mail-qy0-f136.google.com ([209.85.221.136] verified) by logan.com (CommuniGate Pro SMTP 5.2.14) with ESMTP id 3653028 for flyrotary@lancaironline.net; Mon, 25 May 2009 15:37:49 -0400 Received-SPF: pass receiver=logan.com; client-ip=209.85.221.136; envelope-from=rwstracy@gmail.com Received: by qyk42 with SMTP id 42so4730466qyk.7 for ; Mon, 25 May 2009 12:37:10 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:sender:received:in-reply-to :references:date:x-google-sender-auth:message-id:subject:from:to :content-type; bh=+ZClxl6xz1IehYKXkjStfYWRXyLhPKJed07bAdinZGs=; b=gPjrr1WDAEW7vdv2Io9uNvKL8DSOs3AaLtOX75TTMteq7vcPh3ghYmmy04IXZDwsoD teqBN13GTn1qYcAN287Xiv6lEpf+L+1WMjRoaQ0yOomwMT5Wl9no8veMOKFvTBl2mZNG sgxuonFiQ/dGJQ+WNaXLAZ5JI3kdsuhPtdc1g= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:content-type; b=FusFk0sF2cXnnzRO5bcR4W06HsTdEzNXqkpOZQYOX+hHaP/Hpk7f8zW7Ns8wLNFUrn MERbrWR6a1tb04XbkUtgLOzlRMWoWJr6wPbCWpsO2P54TrMpZrQiUmwn27euEsAibYE6 KDgergBCZrJl3KNsh4lttqMNcke09JU/RPJck= MIME-Version: 1.0 Sender: rwstracy@gmail.com Received: by 10.224.60.143 with SMTP id p15mr7047817qah.55.1243280230223; Mon, 25 May 2009 12:37:10 -0700 (PDT) In-Reply-To: References: Date: Mon, 25 May 2009 15:37:10 -0400 X-Google-Sender-Auth: e026a563ac7021c8 Message-ID: <1b4b137c0905251237x1b16c57cl41f691792e0c58a5@mail.gmail.com> Subject: Re: [FlyRotary] Significant insignificant triumph From: Tracy Crook To: Rotary motors in aircraft Content-Type: multipart/alternative; boundary=0015175d00d07a8fbc046ac1bc41 --0015175d00d07a8fbc046ac1bc41 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit 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 ). 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 > --0015175d00d07a8fbc046ac1bc41 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Just a quick comment Chris.

I'm assuming that you were running t= he injector test when you talked about the injectors 'chattering away&#= 39; until you turned on both sets causing them to stop.=A0 If so, I'm g= uessing you forgot to turn on the cold start switch before running the test= .=A0 Turning off one set also turns on cold start so it masked the oversigh= t.

Tracy


On Mon, May 25, 2009 at 5:4= 1 AM, Christopher Barber <CBarber@texasattorney.net> wrote:
I am hoping not to jinx myself, however, I got my electronics back fro= m=20 Tracy a few days ago. I had sent them in following my latest engine build.= =A0=20 If ya'll remember, my lasted engine build failed. due to the failed O-r= ing wall=20 in a brand new intermediate plate.=A0 While waiting, I have been cleaning u= p=20 my install.

Well, yesterday I reinstalled the electronics and was ab= le to=20 fire her up.=A0 Ok, here is the part that is significant to me....After=20 running her for several minutes, with good coolant temps (but considerable= =20 higher oil temps....no worries yet, it is a new radiator and oil coolers (2= )=20 install and needs better ducting to the oil coolers) I shut her down AND th= en=20 started her right back up.=A0

Not a big deal to most, but the=20 consistent problems I have had with my engine was that after I had run them= for=20 a short while they would not restart for hours.=A0 In both the previous=20 builds I found coolant in the rotor chambers....the second build problem fr= om=20 the aforementioned=A0 center plate failing (still not sure about the first= =20 build problem, other than me overheating it, running w/o load etc all in a= =20 wonderful education though mistake learning curve <g>). Coolant would= seep=20 in....or, in the case of the last build, gush in.=A0 While the engine would= =20 start initially, it got harder and harder.=A0 When this pattern repeated is= =20 when I discovered the broken center plate.

I know it may not seem to= o=20 significant to most, but to me, to be able to shut her down then just start= her=20 right back up gives me a quiet joy I can't explain.=A0 Also, I went bac= k to=20 the hangar tonight after work, pushed out the Velocity turned on the switch= es,=20 cracked the throttle about 1/3 (no priming needed....I may have been floodi= ng=20 her a bit before) and she fired right up again. Shut down, and the same thi= ng=20 again, she started right up.=A0 Such joy at such a little event.=A0 It was= =20 about 2:00 am by this time (I get off duty at 11:00pm), so I retired for th= e=20 night......good thing the airport hangars are far from all homes.=A0 Of=20 course even my rotary roar is no match for the jets (military, civilian and= =20 NASA) constantly taking off from EFD when it comes to noise, even at=20 2:00am.

NOW, perhaps, I can get to some actual progress in tuning th= e=20 EC2/EM2 and trouble shooting.=A0 Wahoo.=A0 I am guessing I will have many= =20 of the concerns of those before me.=A0 Right now, it is missing a bit and= =20 some surging, but I feel I can (hopefully) get to the meat of tuning if I c= an=20 get clean starts and keep the temps down while doing so.=A0 The much larger= =20 radiator/fan is helping.=A0 The oil cooler is larger than before but I thin= k=20 the fan for the radiator is stealing some airflow from the oil cooler.=A0 A= n=20 issue I see a couple of potential solutions for.=A0 In any case, all the=20 temps stay cooler longer than my last incarnation

Also, I am having = some=20 injector problems, but I think it should be just a simple wiring=20 problem.....possibly a good old fashion short.=A0 The primaries and=20 secondary's both have power from different sources, if I have power to = either of=20 them separately, they chatter away.=A0 however, if I turn on the power to= =20 both at the same time, they both stop. It also has wanted to stop completel= y=20 when I got over about 4000 rpm (even if I do not want to take it much highe= r=20 than that yet due to it still breaking in, I do know the engine should not = just=20 quit.....gee, ya think ;-). Hmmmm, time to trace wires and connections.=A0 = I=20 do not think it has anything to do with the EC/EM.=A0 Just one more thing t= o=20 figure out.

Thanks for allowing me to share my latest chapter in th= e=20 continuing Saga.=A0 I hope to see a lot of y'all on Saturday.

Al= l the=20 best,

Chris Barber
Houston

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