X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from cdptpa-omtalb.mail.rr.com ([75.180.132.122] verified) by logan.com (CommuniGate Pro SMTP 5.2.14) with ESMTP id 3734069 for flyrotary@lancaironline.net; Fri, 26 Jun 2009 17:43:05 -0400 Received-SPF: pass receiver=logan.com; client-ip=75.180.132.122; envelope-from=eanderson@carolina.rr.com Received: from computername ([75.191.186.236]) by cdptpa-omta02.mail.rr.com with ESMTP id <20090626214225647.ZUFT24524@cdptpa-omta02.mail.rr.com> for ; Fri, 26 Jun 2009 21:42:25 +0000 From: "Ed Anderson" To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: Fwd: Re: Engine problem/ I need help Date: Fri, 26 Jun 2009 17:42:27 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0022_01C9F685.79488990" X-Mailer: Microsoft Office Outlook, Build 11.0.5510 Thread-Index: Acn2kKm56EnWuyeWRH2CvAAEpWyDBAAFhesg X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.5579 In-Reply-To: Message-Id: <20090626214225647.ZUFT24524@cdptpa-omta02.mail.rr.com> This is a multi-part message in MIME format. ------=_NextPart_000_0022_01C9F685.79488990 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Good call, Chris. =20 =20 Give me a call when you get ready after settling down from the move. =20 Ed =20 Ed Anderson Rv-6A N494BW Rotary Powered Matthews, NC eanderson@carolina.rr.com http://www.andersonee.com http://www.dmack.net/mazda/index.html http://www.flyrotary.com/ http://members.cox.net/rogersda/rotary/configs.htm#N494BW http://www.rotaryaviation.com/Rotorhead%20Truth.htm =20 _____ =20 From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of candtmallory@cebridge.net Sent: Friday, June 26, 2009 3:01 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Fwd: Re: Engine problem/ I need help =20 After a good night sleep, and talking to the wive, I've decided to pull = the wings and finish fixing the engine once I get to Fayetteville. Every time in the past when anyone would ask "When will you fly?" I = would answer that it will be done when it is done, and I was enjoying the building. By putting a deadline on myself, it had stopped being fun, = and was too much like work. My wife reminded me of this while I was pissing = and moaning. Fayetteville puts me about 1 hour from Bruce Terrentine, and also pretty close to Ed. With the wings off, the plane is much more transportable, = and I will be able to bring it to the experts to get help if needed. It's disappointing, but I know that it is the right decision in the long run. When I get to Fayetteville, and resume work, I'll let you all know what I find as the problem. Thanks again for the encouragement, Chris On Fri Jun 26 12:23 , wrjjrs@aol.com sent: Chris, One other possibility is an exhaust obstruction. Very often people underestimate the effects of the near 1700=C2=B0F exhaust of the rotary. = Even Mistral who are very aware, made the mistake of running an exhaust from = an outside manufacturer and it failed. You were making your first = high-power WOT runs and therefore hittin the super high temps for the first time. = Check your exhaust carefully give it the tap test to check for loose parts. Bill Jepson -----Original Message----- From: Richard Sohn To: Rotary motors in aircraft Sent: Fri, Jun 26, 2009 6:58 am Subject: [FlyRotary] Re: Fwd: Re: Engine problem/ I need help Chris, =20 the flames in the exhaust could also be caused by late ignition timing. = I had that a couple of years ago on the single rotor.=20 The engine was running fine and really smooth at about 40% power. = Suddenly, the exhaust started glowing red about 10" long. After realizing it was = the first run with a new ignition setup, I investigated and surely found an increasing late ignition timing with increasing RPM.=20 After this was corrected, the problem was gone. FWIW, =20 Richard Sohn N2071U ----- Original Message -----=20 From: candtmallory@cebridge.net=20 To: Rotary motors in aircraft=20 Sent: Friday, June 26, 2009 7:44 AM Subject: [FlyRotary] Fwd: Re: Engine problem/ I need help =20 ----- Original Message -----=20 From: To: 'Ed Anderson' Sent: Fri Jun 26 0:07 Subject: Fwd: Re: Engine problem? Thanks all for the quick responses! I was reluctant to run the engine again, but it sounds like that is what = I need to do to get more data points. I'll go out tomorrow and do some = lower power runs and see what I get. To answer some of the questions: I have about 1.5 hours total on the engine right now. I've done the = mode 3,2,1 and 9 (auto=3D2 0tune). Everything looked good. With about 1 = hour engine time, I started teh high power runs. I was at about 30 min total high power time when this happened. RD1C (2.85:1) PSRU with a huge CATO prop. Standard Renesis Red and Blue injectors, I'll have to measure the = throttle body, the exhaust is short. It comes out and faces fron, then turns 180 down and aft to the Hushpower II muffler, then 90 down and out the cowl. I'll take a pic tomorrow. I stopped the high power runs when H2O got to 200*, oil was always about = 10* cooler. I also had to do the short runs to fill the radiator. I checked it for = full by feeling heat at the top. I'll give the oil pressure another look tomorrow, and get exact numbers = at different rpms. No noticable clank, bang, etc. The rpm just dropped off 200. THanks, =20 Chris On Thu Jun 25 23:09 , 'Ed Anderson' sent: Hi Chris, Need some more particularizes about your installation. So its really hard to decide what might be the problem without more = data. I presume as best you could tell nothing happened (clank, bang, backfire) = when this unexpected reduction in rpm occurred? One thing you might want to check is your ignition timing static timing alignment. IF the clamp bolt on the distributor or I believe the = Renesis use a pulley ignition timing sensor becomes loose during the run and the timing shifted that could cause such a sudden change. Just another = thing to check. The first thing is to determine whether you really have a problem or did something change, fuel flow, air flow, muffler? Another possibility is = if the heat stress caused your muffler to partially collapse, that could = cut your power. Best Regards Ed Ed Anderson Rv-6A N494BW Rotary Powered Matthews, NC eanderson@carolina.rr.com http://www.andersonee.com http://www.dmack.net/mazda/index.html http://www.flyrotary.com/ http://members.cox.net/rogersda/rotary/configs.htm#N494BW http://www.rotaryaviation.com/Rotorhead%20Truth.htm =20 0D=20 --Homepage: = http://www.flyrotary.com/Archive and UnSub: = http://mail.lancaironline.net:81/lists/flyrotary/List.html _____ =20 No virus found in this incoming message. Checked by AVG - www.avg.com=20 Version: 8.5.339 / Virus Database: 270.12.92/2202 - Release Date: = 06/25/09 17:58:00 =20 _____ =20 Paying hundreds for more mobile than you need? Take a Peek at the answer.=20 -- Homepage: http://www.flyrotary.com/ Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List.html ------=_NextPart_000_0022_01C9F685.79488990 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Good call, Chris.=A0 =

 

Give me a call when you get ready = after settling down from the move.

 

Ed

 

From: = Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of candtmallory@cebridge.net
Sent: Friday, June 26, = 2009 3:01 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: = Fwd: Re: Engine problem/ I need help

 

After a good night sleep, and talking to the wive, I've decided to pull the = wings and finish fixing the engine once I get to Fayetteville.=

Every time in the past when anyone would ask "When will you fly?" I = would answer that it will be done when it is done, and I was enjoying the building.  By putting a deadline on myself, it had stopped being = fun, and was too much like work.  My wife reminded me of this while I was = pissing and moaning.

Fayetteville puts me about 1 hour from Bruce Terrentine, and also pretty close to = Ed.  With the wings off, the plane is much more transportable, and I will be = able to bring it to the experts to get help if needed.

It's disappointing, but I know that it is the right decision in the long run.  When I get to Fayetteville, and resume work, I'll let you all know what I find as the = problem.

Thanks again for the encouragement,

Chris

On Fri Jun 26 12:23 , = wrjjrs@aol.com sent:

Chris,
One other possibility is an exhaust obstruction. Very often people underestimate the effects of the near 1700=C2=B0F exhaust of the rotary. = Even Mistral who are very aware, made the mistake of running an exhaust from = an outside manufacturer and it failed. You were making your first = high-power WOT runs and therefore hittin the super high temps for the first time. Check = your exhaust carefully give it the tap test to check for loose parts.
Bill Jepson

-----Original Message-----
From: Richard Sohn <res12@fairpoint.net>
To: Rotary motors in = aircraft <flyrotary@lancaironline.net>
Sent: Fri, Jun 26, 2009 6:58 am
Subject: [FlyRotary] Re: Fwd: Re: Engine problem/ I need = help

Chris,

 

the flames in the exhaust could also be caused by = late ignition timing. I had that a couple of years ago on the single rotor. =

The engine was running fine and really smooth at = about 40% power. Suddenly, the exhaust started glowing red about 10" long. = After realizing it was the first run with a new ignition setup, I investigated = and surely found an increasing late ignition timing with increasing RPM. =

After this was corrected, the problem was = gone.

FWIW,

 

Richard Sohn
N2071U

----- Original Message ----- =

Sent: Friday, = June 26, 2009 7:44 AM

Subject: = [FlyRotary] Fwd: Re: Engine problem/ I need help

 






----- Original Message -----
From: <candtmallory@cebridge.net>
To: 'Ed Anderson' <eanderson@carolina.rr.com>
Sent: Fri Jun 26 0:07
Subject: Fwd: Re: Engine problem?

Thanks all for the quick responses!

I was reluctant to run the engine again, but it sounds like that = is what I need to do to get more data points.  I'll go out tomorrow = and do some lower power runs and see what I get.

To answer some of the questions:

I have about 1.5 hours total on the engine right now.  I've = done the mode 3,2,1 and 9 (auto=3D2 0tune).  Everything looked = good.  With about 1 hour engine time, I started teh high power runs.  I was at = about 30 min total high power time when this = happened.

RD1C (2.85:1) PSRU with a huge CATO = prop.

Standard Renesis Red and Blue injectors, I'll have to measure = the throttle body, the exhaust is short.  It comes out and faces = fron, then turns 180 down and aft to the Hushpower II muffler, then 90 down = and out the cowl.  I'll take a pic tomorrow.

I stopped the high power runs when H2O got to 200*, oil was = always about 10* cooler.

I also had to do the short runs to fill the radiator.  I = checked it for full by feeling heat at the top.

I'll give the oil pressure another look tomorrow, and get exact numbers = at different rpms.

No noticable clank, bang, etc.  The rpm just dropped off = 200.

THanks,

 

Chris

On Thu Jun 25 23:09 , 'Ed Anderson' = <eanderson@carolina.rr.com> sent:

Hi Chris,

Need some more particularizes about your = installation.

So its really hard to decide what might be the = problem without more data.  I presume as best you could tell nothing happened = (clank, bang, backfire) when this unexpected reduction in rpm = occurred?

One thing you might want to check is your ignition = timing static timing alignment.  IF the clamp bolt on the distributor or I believe the Renesis use a pulley ignition timing sensor becomes loose = during the run and the timing shifted that could cause such a sudden = change.  Just another thing to check.

The first thing is to determine whether you really = have a problem or did something change, fuel flow, air flow, muffler?  = Another possibility is if the heat stress caused your muffler to partially = collapse, that could cut your power.

Best Regards

Ed

Ed Anderson

Rv-6A N494BW Rotary = Powered

Matthews, NC



0D 

--Homepage:=A0 http://www.flyrotary.com/Archi=
ve and UnSub:=A0=A0 http://mail.lancaironline.net:81/lists/flyrotary/Lis=
t.html


No virus found in this incoming message.
Checked by AVG - www.avg.com
Version: 8.5.339 / Virus Database: 270.12.92/2202 - Release Date: = 06/25/09 17:58:00

 

=

Paying hundreds for more mobile than you need? Take a Peek at the = answer. 


--

Homepage:  http://www.flyrotary.com/

Archive and UnSub:   =
http://mail.lancaironline.net:81/lists/flyrotary/List.html
------=_NextPart_000_0022_01C9F685.79488990--