X-Virus-Scanned: clean according to Sophos on Logan.com From: "Stephen Izett" Received: from mail-pa0-f43.google.com ([209.85.220.43] verified) by logan.com (CommuniGate Pro SMTP 6.1.11) with ESMTPS id 8863707 for flyrotary@lancaironline.net; Wed, 10 Aug 2016 08:31:49 -0400 Received-SPF: pass receiver=logan.com; client-ip=209.85.220.43; envelope-from=steveize@gmail.com Received: by mail-pa0-f43.google.com with SMTP id fi15so15629735pac.1 for ; Wed, 10 Aug 2016 05:31:49 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=from:message-id:mime-version:subject:date:references:to:in-reply-to; bh=GzvOQRRbn8l2YxHyq+lXr5AiG0KZBS4S+Yz6vJrlWBQ=; b=HTVJhk3pAbJtOi8RLzO0nExWph4TIarPdrXYrBooCSl1B1OEOEISYb38hGjsxiCsOr 8Peycxp3EEfxomWVf32g0vJdcPeNgAgUZdupFCB7cNdhERLE6ZlC9DGikddlljSIuWxj ti75CthPVspe5Fo2VhhUneCH3AG37pk5z7FPnVWS8BFYPP4aVt9xBJFkrKJuAvb4NTLq eLtz4Xc+vQW62PQRmNw6yiulsaSdj1ojmVOmefbPl8Q+t548chjz8+hOflXSvrU+cNo6 eM+6h82/pIWv0/c+QyInLksYv2ZKMu/WS+SVtUuJP4GiyKUiaZoUoj7DeokLnhxRDnvc xpWw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:message-id:mime-version:subject:date :references:to:in-reply-to; bh=GzvOQRRbn8l2YxHyq+lXr5AiG0KZBS4S+Yz6vJrlWBQ=; b=FhUEF2JlDa4uysu6hQg6LRURNAw4YU0pLCsfGc66JQATQS2ruZwNG9WWVGPJ31x5t2 i1zJBzE0omp3zy+ZglORHlnI5sEJbDT3M6nBU54Lu0cqBNGVCHscle4Cg49Vi7wG9VL5 EntBCZ8SlAmH/qTY74rKbiQeSx6zCw3CGjyI5uZ7SxAbuuYQkV9ujmwK2YGCXzueNd6b xbN2DHlgEVRI7g26i31IA0vSeqQ5OCEkxchJnYjQ/vctHCTnsiYN2LmVVZJcnu5EDo1r T1GJM43V9qOg66w1AAJK3++79SldhnO47Eg6EjQsQhkRRIZ20xSRwNYqKoY1uQTCD+rz aJhA== X-Gm-Message-State: AEkoouubPftf0KvJ5SRqDqZPyd5necSr5GP/pbZ5fLKlmb6cADIahfHyGS8BEUAaiS6fYg== X-Received: by 10.66.230.195 with SMTP id ta3mr6689405pac.89.1470832290548; Wed, 10 Aug 2016 05:31:30 -0700 (PDT) Return-Path: Received: from [10.1.1.5] (124-148-241-223.dyn.iinet.net.au. [124.148.241.223]) by smtp.gmail.com with ESMTPSA id sy7sm46828144pac.42.2016.08.10.05.31.28 for (version=TLS1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Wed, 10 Aug 2016 05:31:29 -0700 (PDT) X-Google-Original-From: Stephen Izett Content-Type: multipart/alternative; boundary="Apple-Mail=_CD545C9B-CDE1-4D1B-ACF2-CDCC3060E221" Message-Id: Mime-Version: 1.0 (Mac OS X Mail 9.3 \(3124\)) Subject: Re: [FlyRotary] Finding the gremlin Date: Wed, 10 Aug 2016 20:31:36 +0800 References: To: Rotary motors in aircraft In-Reply-To: X-Mailer: Apple Mail (2.3124) --Apple-Mail=_CD545C9B-CDE1-4D1B-ACF2-CDCC3060E221 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=utf-8 Thanks David I=E2=80=99ll seperate the two. Steve > On 9 Aug 2016, at 4:02 AM, hoursaway1 = wrote: >=20 > One thought, where is your T- for the vacuum to the two MAP sensors, = suggest having separate lines for full isolation, if rub through-leak = accured then would not affect both.. wife says have to leave now = ,.David >=20 > From: "steve Izett" > To: "Rotary motors in aircraft" > Sent: Friday, August 5, 2016 7:31:14 PM > Subject: [FlyRotary] Finding the gremlin >=20 > Hi Guys > We got some further fault finding done today towards isolating the = cause of the massive missing problem with our Renesis 4 port. > The troubling symptom / major problem is as we approach 23-24=E2=80=9D = MAP at various prop pitch and rpm=E2=80=99s (both A and B computers), > with very little warning begins to miss and then pretty much go = immediately into massive missing and popping in the exhaust. > Just before the bad stuff begins the EGT=E2=80=99s read 1540 and 1440. > I have only done mode #3 programming and adjust the mixture with the = manual mixture control while watching the narrowband. The mixture tables = were reset. > It stages at 19=E2=80=9DHg as per Tracy=E2=80=99s recommendation for = Red and Blue Injectors. > Also the Skyview and EM3 stops displaying RPM at around 6000 rpm. The = EM3 reads NOP instead. >=20 > So order of events today: >=20 > I wondered previously what the seals where like so having received a = new $22 pressure transducer I took out trailing plugs and=20 > grabbed some pressure data while cranking. > See plots in WORD file attached - (File to big, I=E2=80=99ll have to = reduce before posting) > All faces around 80psi when cold. Rotor #2 has one pulse down by max = of 6 psi compared to the highest pulse. Does this mean that side seal is = leaking? >=20 > We then went after 3 key possible problems: > 1st being Engine monitors holding Injector #1 open so:- > A. Disconnected Dynon engine monitor to isolate it as a cause of = disturbing Injector #1. No change. > B. Disconnected EM3 to isolate the same as above. No Change. >=20 > 2nd being Pulses in the intake manifold messing with EC2 fueling. > We inserted a 0.6mm restriction in MAP sense line. (This line then = =E2=80=99t=E2=80=99s=E2=80=99 of too A and B Computer MAP=E2=80=99s. No = Change. >=20 > 3rd Renesis CAS generating higher input voltage. Tracy recommends 1K = across CAS=E2=80=99s. > I think this mod may have been done. See photo of EC2 PCB below pin 4 = & 23 both tied back to pin 22 via something inside the heat shrink. >=20 > Note to Tracy. - Did you incorporate in your code any way of knowing = if the EC2 entered a watchdog routine? >=20 > So I=E2=80=99m stumped for the moment. > At least we know more of what the problem isn=E2=80=99t, Which is = helpful. >=20 >=20 > Appreciated any input. >=20 > Cheers >=20 > Steve Izett > >=20 --Apple-Mail=_CD545C9B-CDE1-4D1B-ACF2-CDCC3060E221 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=utf-8 Thanks David
I=E2=80=99ll seperate the = two.
Steve
On 9 Aug 2016, at 4:02 AM, = hoursaway1 <flyrotary@lancaironline.net> wrote:

One thought, where is your = T-  for the vacuum to the two MAP sensors, suggest having separate = lines for full isolation, if rub through-leak accured then would not = affect both.. wife says have to leave now  ,.David

From: "steve Izett" <flyrotary@lancaironline.net>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Friday, August 5, 2016 7:31:14 PM
Subject: [FlyRotary] Finding the gremlin

Hi Guys
We got some = further fault finding done today towards isolating the cause of the = massive missing problem with our Renesis 4 port.
The = troubling symptom / major problem is as we approach 23-24=E2=80=9D MAP = at various prop pitch and rpm=E2=80=99s (both A and B computers),
with very little warning begins to miss and then pretty much = go immediately into massive missing and popping in the exhaust.
Just before the bad stuff begins the EGT=E2=80=99s read 1540 = and 1440.
I have only done mode #3 programming and adjust = the mixture with the manual mixture control while watching the = narrowband. The mixture tables were reset.
It stages = at 19=E2=80=9DHg as per Tracy=E2=80=99s recommendation for Red and Blue = Injectors.
Also the Skyview and EM3 stops displaying RPM = at around 6000 rpm. The EM3 reads NOP instead.

So order of events today:

I wondered previously what the seals where like so having = received a new $22 pressure transducer I took out trailing plugs = and 
grabbed some pressure data while cranking.
See plots in WORD file attached - (File to big, I=E2=80=99= ll have to reduce before posting)
All faces around 80psi = when cold. Rotor #2 has one pulse down by max of 6 psi compared to the = highest pulse. Does this mean that side seal is leaking?
We then went after 3 key possible problems:
1st = being Engine monitors holding Injector #1 open so:-
A. = Disconnected Dynon engine monitor to isolate it as a cause of disturbing = Injector #1. No change.
B. Disconnected EM3 to isolate the = same as above. No Change.

2nd being Pulses = in the intake manifold messing with EC2 fueling.
We = inserted a 0.6mm restriction in MAP sense line. (This line then = =E2=80=99t=E2=80=99s=E2=80=99 of too A and B Computer MAP=E2=80=99s. No = Change.

3rd Renesis CAS generating higher = input voltage. Tracy recommends 1K across CAS=E2=80=99s.
I = think this mod may have been done. See photo of EC2 PCB below pin 4 = & 23 both tied back to pin 22 via something inside the heat = shrink.

Note to Tracy. - Did you = incorporate in your code any way of knowing if the EC2 entered a = watchdog routine?

So I=E2=80=99m = stumped for the moment.
At least we know more of what the = problem isn=E2=80=99t, Which is helpful.


Appreciated any input.

Cheers

Steve Izett
<EC2PCB.jpg><= /div>


= --Apple-Mail=_CD545C9B-CDE1-4D1B-ACF2-CDCC3060E221--