X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from mail-oa0-f49.google.com ([209.85.219.49] verified) by logan.com (CommuniGate Pro SMTP 6.0.6) with ESMTPS id 6438320 for flyrotary@lancaironline.net; Fri, 23 Aug 2013 01:23:35 -0400 Received-SPF: pass receiver=logan.com; client-ip=209.85.219.49; envelope-from=keltro@gmail.com Received: by mail-oa0-f49.google.com with SMTP id n10so269989oag.8 for ; Thu, 22 Aug 2013 22:22:59 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; bh=06WW8xswxErkcBk2kLC3iIODxpFJ8KpHMw1VjXTPgoM=; b=ivawZkPDsYFL0CX5wwkQmctmhfuZYWRCAIXc5r9ZSPZitDxutt6r4FV/964AicmmJ6 ODEAceOT8I/00S4UVy4rWRcZf60xEp+r/XHI3rLpM5mxikJU7vWRcEp6y1zdf7gwEg4P 0q0U0UVR9hOyRVLPZkKok91dLFy3uNszozsk06fiY45x5wfEirzzJmAKZtwil0Eh4cBM Mr4x5KWKLgQT8GkVBTrxuRPQNYcxEzzdpmfqhBG5uQ+yy+G7QxqbWCHPOd3aM/sfbNH6 3eVih9vTuBCDlnDHicm2AB7dwVRdFnfFNWDA3gA0Bz0ZpmY/b0xMJwh1DfMHVFAxl0Dd cI5Q== MIME-Version: 1.0 X-Received: by 10.60.70.134 with SMTP id m6mr18313168oeu.14.1377235379559; Thu, 22 Aug 2013 22:22:59 -0700 (PDT) Received: by 10.76.3.146 with HTTP; Thu, 22 Aug 2013 22:22:59 -0700 (PDT) In-Reply-To: References: Date: Fri, 23 Aug 2013 00:22:59 -0500 Message-ID: Subject: Re: [FlyRotary] Re: Fuel map scarmbled From: Kelly Troyer To: Rotary motors in aircraft Content-Type: multipart/related; boundary=001a1133458e92251704e49699c9 --001a1133458e92251704e49699c9 Content-Type: multipart/alternative; boundary=001a1133458e92251304e49699c8 --001a1133458e92251304e49699c8 Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: quoted-printable Tracy, Please send copy of your electrical system guide to my E mail address.... keltro@gmail.com Thanks, Kelly Troyer On Thu, Aug 22, 2013 at 12:28 PM, Jeff Whaley wrote: > Another low-percentage (1 confirmed) but possible cause is the > controller coming loose in the PLCC socket. > > Pop lid off of EC2 (careful not to touch pins) and press gently but > firmly in center of chips =96 they should NOT move; i.e., fully seated t= o > bottom of socket. > > Jeff > > > > From: > > Tracy > > Subject: > > Re: [FlyRotary] Fuel map scrambled. > > Date: > > Thu, 22 Aug 2013 06:48:11 -0400 > > To: > > Rotary motors in aircraft > > *[image: Message Header]* > > *[image: Undecoded Message]* > > I've written about this so many times I've lost count. The scrambled ma= p > table problem is ALWAYS caused by electrical noise spikes. The root caus= e > of those is poor electrical system layout including ground distribution. > You can sometimes fix the problem by addressing the individual sources > (coil power inputs, starter solenoid, etc) but its also important to have= a > proper architecture to begin with. > > > > I have a two page guideline for this in the installation guide for last > several years but it's too many bytes to post here. Email me a request a= nd > I'll send it direct if you want a copy and its not in your installation > guide already. > > > > Tracy Crook > > > Sent from my iPad > > > On Aug 21, 2013, at 22:09, hoursaway1@comcast.net wrote: > > 1st..... am now on the ground safe & sound, no damage normal landing. > The story goes....... Level at 2500' above Mason Jewett Field, ( hazy > evening, aprox. 7:30 pm ) on the down wind abeam of the end of the > runway, 4600 rpm, ? MAP, 125 MPH ind., 3rd circle around the patch > getting ready to put in full cruise pitch on prop to do a full throttle > numbers gathering. Then the eng. started running very poorly, missing, > stumbling hard, destict loss of power, tryed to descend & come around t= o > land but am high & hot with ( RV's need air brakes ) eng. smoothed out= , > chose a sweet spot & climbed out to go around,,, low but climbing, ran > smooth 4000 rpm, landed ok. Before shutdown, checked fuel map bars for > EC2 on EM2, some in the middle some at the bottom,,,Lean,,, why did the > fuel map scramble suddenly, steady cruise flight, made no changes at tha= t > time? At the airport by 6:30, pull plane from hanger to do two tests > tonight, 1st. run eng. at low power/idle like sitting in line for takeoff > from Osh or ?, how long can we stay running without getting to hot, 18 > min. coolant 205 F, oil 175 F, ok that's good enough for me lets go fly= & > do the prop full cruise pitch test run. That was the start of the evenin= g, > ended differently than I would have liked. But nothing bent. Did not > reset EC2 yet, am going to start eng. & check to see if computer B runs > ok, did not get a chance to throw that switch, when I found the sweet spo= t > I changed nothing, just came around & landed. What is the fix for this > anomaly?? David R Cook RV6A Rotary > > > This message, and the documents attached hereto, is intended only for th= e > addressee and may contain privileged or confidential information. Any > unauthorized disclosure is strictly prohibited. If you have received this > message in error, please notify us immediately so that we may correct our > internal records. Please then delete the original message. Thank you. > --=20 Kelly Troyer Dyke Delta_"Eventually" 13B_RD1C_EC2_EM2 --001a1133458e92251304e49699c8 Content-Type: text/html; charset=windows-1252 Content-Transfer-Encoding: quoted-printable
Tracy,
=A0 Please send copy of your electrical system = guide to my E mail address....


Thanks,
Kelly Troyer


On Thu, Aug 22, 2013 at 12:28 PM, Jeff Whaley = <jwhaley@datac= ast.com> wrote:

Another low-percentage (1 confirmed) but possible ca= use is the controller coming loose in the PLCC socket.

Pop lid off of EC2 (careful not to touch pins) and p= ress gently =A0but firmly in center of chips =96 they should NOT move; =A0i= .e., fully seated to bottom of socket.

Jeff

=A0

From:

Tracy <rwstracy@gmail.com>

Subject:

Re: [FlyRotary] Fuel map scrambled.

Date:

Thu, 22 Aug 2013 06:48:11 -0400

To:

Rotary motors in aircraft <flyrotary@lancaironl= ine.net>

3D=

3D"Undecoded

I've written about this so many time= s I've lost count. =A0 The scrambled map table problem is ALWAYS caused= by electrical noise spikes. =A0The root cause of those is poor electrical system layout including ground distribution. =A0You can sometimes fix the = problem by addressing the individual sources (coil power inputs, starter so= lenoid, etc) but its also important to have a proper architecture to begin = with. =A0

=A0

I have a two page guideline for this in = the installation guide for last several years but it's too many bytes t= o post here. =A0Email me a request and I'll send it direct if you want a copy and its not in your =A0installation guide already.<= /p>

=A0

Tracy Crook


Sent from my iPad


On Aug 21, 2013, at 22:09, hour= saway1@comcast.net wrote:

1st..... am now on the ground safe & sound, no damage = normal landing. =A0=A0 The story goes....... Level at 2500' above Mason= Jewett Field,=A0 (=A0 hazy evening, aprox. 7:30 pm=A0 )=A0 on the down wind abeam of the end of the runway, =A0 4600 rpm,=A0 ? MAP,=A0 1= 25 MPH=A0 ind.,=A0 3rd circle around the patch getting ready to put in full= cruise pitch on prop to do a full throttle numbers gathering.=A0 Then the = eng. started running very poorly,=A0 missing, stumbling hard, destict loss of power,=A0 tryed to descend & come arou= nd=A0 to land but am high & hot with=A0 (=A0 RV's need air brakes )= =A0 eng. smoothed out, chose a sweet spot & climbed out to go around,,,= low=A0 but climbing,=A0 ran smooth 4000 rpm,=A0 landed ok.=A0 Before shutdown,=A0 checked fuel map bars for EC2=A0 on EM2,=A0 some in the middl= e some at the bottom,,,Lean,,, why did the fuel map scramble suddenly,=A0 s= teady cruise flight, made no changes at that time?=A0 At the airport by 6:3= 0,=A0 pull plane from hanger to do two tests tonight, 1st. run eng. at low power/idle like sitting in line for takeoff = from Osh or ?,=A0 how long can we stay running without getting to hot, 18 m= in. coolant 205 F,=A0 oil 175 F,=A0 ok that's good enough for me lets g= o fly & do the prop full cruise pitch test run.=A0 That was the start of the evening, ended differently than I would = have liked.=A0 But nothing bent. =A0 Did not reset EC2=A0 yet, am going to = start eng. & check to see if computer B runs ok, did not get a chance t= o throw that switch, when I found the sweet spot I changed nothing, just came around & landed.=A0 What is the fix = for this anomaly?? =A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 D= avid R Cook=A0 RV6A=A0 Rotary

=A0

This message, and the documents attached hereto, is intended only for the a= ddressee and may contain privileged or confidential information. Any unauth= orized disclosure is strictly prohibited. If you have received this message= in error, please notify us immediately so that we may correct our internal records. Please then delete the origin= al message. Thank you.



--
Kelly Troyer=
Dyke Delta_"Eventually"
13B_RD1C_EC2_EM2
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