X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from QMTA01.emeryville.ca.mail.comcast.net ([76.96.30.16] verified) by logan.com (CommuniGate Pro SMTP 5.2.14) with ESMTP id 3652699 for flyrotary@lancaironline.net; Mon, 25 May 2009 05:42:04 -0400 Received-SPF: none receiver=logan.com; client-ip=76.96.30.16; envelope-from=cbarber@texasattorney.net Received: from OMTA14.emeryville.ca.mail.comcast.net ([76.96.30.60]) by QMTA01.emeryville.ca.mail.comcast.net with comcast id vlfa1b0021HpZEsA1lhVHs; Mon, 25 May 2009 09:41:29 +0000 Received: from ChristopherNB ([98.200.105.92]) by OMTA14.emeryville.ca.mail.comcast.net with comcast id vlhT1b0051zdwnW8alhUCd; Mon, 25 May 2009 09:41:29 +0000 Message-ID: <10B3A697C8134FF6952FDCDAD5DF009C@ChristopherNB> From: "Christopher Barber" To: "FlyRotary aircraft" Subject: Significant insignificant triumph Date: Mon, 25 May 2009 04:41:21 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_06D1_01C9DCF3.0D40BD40" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Windows Mail 6.0.6001.18000 X-MimeOLE: Produced By Microsoft MimeOLE V6.0.6001.18049 This is a multi-part message in MIME format. ------=_NextPart_000_06D1_01C9DCF3.0D40BD40 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable 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. =20 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.=20 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 ------=_NextPart_000_06D1_01C9DCF3.0D40BD40 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
I am hoping not to jinx myself, however, I got my electronics back = from=20 Tracy a few days ago. I had sent them in following my latest engine = build. =20 If ya'll remember, my lasted engine build failed. due to the failed = O-ring wall=20 in a brand new intermediate plate.  While waiting, I have been = cleaning up=20 my install.

Well, yesterday I reinstalled the electronics and was = able to=20 fire her up.  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 = then=20 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=20 a short while they would not restart for hours.  In both the = previous=20 builds I found coolant in the rotor chambers....the second build problem = from=20 the aforementioned  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.  While the engine = would=20 start initially, it got harder and harder.  When this pattern = repeated is=20 when I discovered the broken center plate.

I know it may not seem = too=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.  Also, I went = back to=20 the hangar tonight after work, pushed out the Velocity turned on the = switches,=20 cracked the throttle about 1/3 (no priming needed....I may have been = flooding=20 her a bit before) and she fired right up again. Shut down, and the same = thing=20 again, she started right up.  Such joy at such a little = event.  It was=20 about 2:00 am by this time (I get off duty at 11:00pm), so I retired for = the=20 night......good thing the airport hangars are far from all homes.  = 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 = the=20 EC2/EM2 and trouble shooting.  Wahoo.  I am guessing I will = have many=20 of the concerns of those before me.  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 can=20 get clean starts and keep the temps down while doing so.  The much = larger=20 radiator/fan is helping.  The oil cooler is larger than before but = I think=20 the fan for the radiator is stealing some airflow from the oil = cooler.  An=20 issue I see a couple of potential solutions for.  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.  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.  however, if I turn on the = power to=20 both at the same time, they both stop. It also has wanted to stop = completely=20 when I got over about 4000 rpm (even if I do not want to take it much = higher=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.  I=20 do not think it has anything to do with the EC/EM.  Just one more = thing to=20 figure out.

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

All the=20 best,

Chris Barber
Houston
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