X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from fed1rmmtao103.cox.net ([68.230.241.43] verified) by logan.com (CommuniGate Pro SMTP 5.2.15) with ESMTP id 3766620 for flyrotary@lancaironline.net; Mon, 20 Jul 2009 23:39:25 -0400 Received-SPF: none receiver=logan.com; client-ip=68.230.241.43; envelope-from=alventures@cox.net Received: from fed1rmimpo02.cox.net ([70.169.32.72]) by fed1rmmtao103.cox.net (InterMail vM.7.08.02.01 201-2186-121-102-20070209) with ESMTP id <20090721033847.GKMU1223.fed1rmmtao103.cox.net@fed1rmimpo02.cox.net> for ; Mon, 20 Jul 2009 23:38:47 -0400 Received: from BigAl ([72.192.133.78]) by fed1rmimpo02.cox.net with bizsmtp id JTem1c00T1hf1Cg04TemYB; Mon, 20 Jul 2009 23:38:47 -0400 X-VR-Score: -100.00 X-Authority-Analysis: v=1.0 c=1 a=MiDxHjFGilYA:10 a=Ia-xEzejAAAA:8 a=pedpZTtsAAAA:8 a=N8B9JuSIAAAA:8 a=7g1VtSJxAAAA:8 a=bcS-AswVOTztJW5YEe4A:9 a=gHvPWFv-5Qz5OMcyvi8A:7 a=sUK1KJZ6ZPOmtguu-iXZRw4KHzQA:4 a=EzXvWhQp4_cA:10 a=eJojReuL3h0A:10 a=HGSupeGmNOFS21zq:21 a=goZV1T2y_k_WvXDm:21 a=_EQh9TYQiU1fG4XWxEgA:9 a=iFT4TkdJfexx7Kf9CUQA:7 a=u4Pngb5MgwZRoJhSZb13vK9d4hMA:4 X-CM-Score: 0.00 From: "Al Gietzen" To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: WTF? Just when I think everything is going perfect... Date: Mon, 20 Jul 2009 20:39:57 -0800 Message-ID: MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0011_01CA097A.3EC41B60" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6838 Thread-Index: AcoJsu2vghdFviOIR9WHIrBrygYkKwACjrAg X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.5579 In-Reply-To: Importance: Normal This is a multi-part message in MIME format. ------=_NextPart_000_0011_01CA097A.3EC41B60 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable =20 CAS? =20 Crank angle sensor. Generates the signal for the ignition and the injectors. =20 Al _____ =20 From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of David Leonard Sent: Monday, July 20, 2009 18:19 To: Rotary motors in aircraft Subject: [FlyRotary] Re: WTF? Just when I think everything is going perfect... =20 Yup, spins with no sign of firing at all! It only spins easily by hand = when the plugs are out.. otherwise it is a one-compression-at-a-time kind of exercise. Compression is normal.. I am well familiar with its feel. =20 I am currently leaning toward a intermittent condition with my CAS = wiring or the bad gas/flooding issue. At least it has made me think harder about = my CAS as a single point failure and review the wiring. Thanks for all the suggestions. Dave Leonard On Mon, Jul 20, 2009 at 11:59 AM, Charlie England = wrote: David Leonard wrote: Yesterday I went flying and tested out my new smoke system... everything = was perfect... somke is fun. Today I head out to go formation flying.. nothing changed from my flight yesterday except for adding fuel. But it won't start... I verify that I have fuel pressure, fuel flow, injector function (in test mode), I have spark (in test mode). Maybe it is flooded... I change the plugs, re-verify spark in cranking mode (to eliminate issues with CAS), re-drain the fuel, verify compression, = re-verify fuel pressure and flow and injector funcion... but still it just turns = over without starting... Sigh Anyone one know of a new component necessary other than fuel, spark, and compression? --=20 David Leonard Turbo Rotary RV-6 N4VY http://N4VY.RotaryRoster.net http://RotaryRoster.net Details? Spins with no sign of firing at all? Spits & pops but no regular combustion events? Any chance that the extra effort required to spin the engine by hand = using the prop through the reduction drive is hiding the fact that you have = low compression? The old RX-7 starting trick is fairly quick if you've = already got the cowl off. Pull a plug for each rotor & squirt in a little ATF, reinsert the plug & try to crank. Lyn can probably recommend how much. I never measured; I just dumped in as much as I could get in there while fighting all the junk under the hood. Charlie -- Homepage: http://www.flyrotary.com/ Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List.html --=20 David Leonard Turbo Rotary RV-6 N4VY http://N4VY.RotaryRoster.net http://RotaryRoster.net ------=_NextPart_000_0011_01CA097A.3EC41B60 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

 

CAS?

 

Crank angle sensor.  = Generates the signal for the ignition and the injectors.

 

Al

From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of David Leonard
Sent: Monday, July 20, 2009 18:19
To: Rotary motors in = aircraft
Subject: [FlyRotary] Re: = WTF? Just when I think everything is going perfect...

 

Yup, spins with no sign of firing at all!  It only spins easily by hand = when the plugs are out..  otherwise it is a one-compression-at-a-time = kind of exercise.  Compression is normal..  I am well familiar with = its feel. 

I am currently leaning toward a intermittent condition with my CAS = wiring or the bad gas/flooding issue.  At least it has made me think harder = about my CAS as a single point failure and review the wiring.

Thanks for all the suggestions.

Dave Leonard

On Mon, Jul 20, 2009 at 11:59 = AM, Charlie England <ceengland@bellsouth.net> wrote:

David Leonard wrote:

Yesterday I went flying and tested out my new = smoke system... everything was perfect...  somke is fun.  Today I = head out to go formation flying..  nothing changed from my flight yesterday = except for adding fuel.  But it won't start...   I verify that I have = fuel pressure, fuel flow, injector function (in test mode), I have spark (in = test mode).  Maybe it is flooded... I change the plugs, re-verify spark = in cranking mode (to eliminate issues with CAS), re-drain the fuel, verify compression, re-verify fuel pressure and flow and injector funcion... = but still it just turns over without starting...  Sigh

Anyone one know of a new component necessary other than fuel, spark, and compression?

--
David Leonard

Turbo Rotary RV-6 N4VY
http://N4VY.RotaryRoster.net
http://RotaryRoster.net

Details?

Spins with no sign of firing at all?

Spits & pops but no regular combustion events?

Any chance that the extra effort required to spin the engine by hand = using the prop through the reduction drive is hiding the fact that you have low compression? The old RX-7  starting trick is fairly quick if you've already got the cowl off. Pull a plug for each rotor & squirt in a = little ATF, reinsert the plug & try to crank. Lyn can probably recommend = how much. I never measured; I just dumped in as much as I could get in there while fighting all the junk under the hood.

Charlie

--
Homepage:  http://www.flyrotary.com/
Archive and UnSub:   http://mail.lancaironline.net:81/lists/flyrotary/List.h= tml




--
David Leonard

Turbo Rotary RV-6 N4VY
http://N4VY.RotaryRoster.net http://RotaryRoster.net

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