X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from [66.219.56.248] (HELO qnsi-xch.qnsi.net) by logan.com (CommuniGate Pro SMTP 5.1.12) with ESMTP id 2332805 for flyrotary@lancaironline.net; Sat, 15 Sep 2007 13:37:22 -0400 Received-SPF: none receiver=logan.com; client-ip=66.219.56.248; envelope-from=bhughes@qnsi.net Content-class: urn:content-classes:message Return-Receipt-To: "Bobby J. Hughes" MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C7F7C7.CB85B0FC" Disposition-Notification-To: "Bobby J. Hughes" Subject: RE: [FlyRotary] Re: One for the smart guys X-MimeOLE: Produced By Microsoft Exchange V6.5.6944.0 Date: Sat, 15 Sep 2007 12:39:47 -0600 Message-ID: X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [FlyRotary] Re: One for the smart guys Thread-Index: Acf3oHGJiyvE0JQtSCS45zdczSioUwAJtgZA From: "Bobby J. Hughes" To: "Rotary motors in aircraft" This is a multi-part message in MIME format. ------_=_NextPart_001_01C7F7C7.CB85B0FC Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable I can't give away the answer but I can tell you it was not obvious when looking at the signal with an oscilloscope. At least not in the range and setting used to trigger the CAS signal.=20 =20 Bobby =20 ________________________________ From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Mark Steitle Sent: Saturday, September 15, 2007 6:54 AM To: Rotary motors in aircraft Subject: [FlyRotary] Re: One for the smart guys Ed,=20 You are getting closer when you stated that it must be erratic ignition. (I wish I had someone to give me hints). Yes, the ignition timing was too far advanced, but retarding the timing didn't correct the problem. The coils are LS1 units, 6 ea, so any individual coil isn't firing any more often than on a 2-rotor. So, what's causing the erratic ingition? That's the question.=20 =20 Mark =20 On 9/15/07, Ed Anderson wrote:=20 Hey, No Fair! Mark. Most of us do not have a Renesis shop manual. But, lets see the old CS had three wires, the new one has two wires - I get it - there is a wire missing {:>). =20 So it sounds like the problem was indeed ignition - well, its almost always either fuel or spark causing a problem. So if fuel is more or less ruled out it defaults to ignition. It probably wouldn't be a rev limiter as they simply cut out above a certain rpm. So either your ignition timing somehow was off at higher rpm (too much advance?) or else your ignition was erratic in its firing (such as exceeding the capability of the coils to recharge between firings - unlikely in this case).=20 =20 But, without a shop manual to give me more insight, I must say I'm out of ideas. =20 Ed =20 =20 =20 =20 ----- Original Message -----=20 From: Mark Steitle =20 To: Rotary motors in aircraft =20 Sent: Friday, September 14, 2007 10:52 PM Subject: [FlyRotary] Re: One for the smart guys =20 Now Rusty!!! That's too obvious. ;-) =20 OK, another hint... I got a hint of what might be causing my problem from the ignition section of the Renesis shop manual. =20 Mark=20 =09 =20 On 9/14/07, Russell Duffy wrote:=20 OK, I'll give you a hint... it was related to my decision to change over from the original CAS to the Renesis CAS. I got that bright idea from last year's rotary get together at Tracy's. =20 =20 I've got it. YOU were the problem :-)=20 =20 Rusty=20 ------_=_NextPart_001_01C7F7C7.CB85B0FC Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

I can't give away the answer but I can tell = you it was=20 not obvious when looking at the signal with an oscilloscope. At least = not in the=20 range and setting used to trigger the CAS signal.

Bobby

From: Rotary motors in aircraft=20 [mailto:flyrotary@lancaironline.net] On Behalf Of Mark=20 Steitle
Sent: Saturday, September 15, 2007 6:54 = AM
To:=20 Rotary motors in aircraft
Subject: [FlyRotary] Re: One for the = smart=20 guys

Ed,

You are getting closer when you stated that it must be erratic=20 ignition. (I wish I had someone to give me hints). Yes, the = ignition=20 timing was too far advanced, but retarding the timing didn't correct the = problem. The coils are LS1 units, 6 ea, so any individual = coil=20 isn't firing any more often than on a 2-rotor. So, what's = causing the=20 erratic ingition? That's the question.

Mark

On 9/15/07, Ed=20 Anderson <eanderson@carolina.rr.com&g= t;=20 wrote:=20

Hey, No Fair! Mark. Most of = us do not=20 have a Renesis shop manual. But, lets see the old CS had three = wires,=20 the new one has two wires - I get it - there is a wire missing=20 {:>).

So it sounds like the problem was=20 indeed ignition - well, its almost always either fuel or spark = causing a=20 problem. So if fuel is more or less ruled out it defaults to=20 ignition. It probably wouldn't be a rev limiter as they simply = cut out=20 above a certain rpm. So either your ignition timing somehow was = off at=20 higher rpm (too much advance?) or else your ignition was erratic = in its=20 firing (such as exceeding the capability of the coils to recharge = between=20 firings - unlikely in this case).

But, without a shop manual to give me more = insight, I=20 must say I'm out of ideas.

Ed

----- Original Message -----

From: Mark Steitle =

To: Rotary = motors in=20 aircraft

Sent: Friday, September 14, = 2007 10:52=20 PM

Subject: [FlyRotary] Re: One = for the=20 smart guys

Now Rusty!!! That's too obvious. ;-)

OK, another hint... I got a hint of what might be causing my = problem=20 from the ignition section of the Renesis shop manual. =

Mark

On 9/14/07, Russell=20 Duffy <rusty@radrotary.com >=20 wrote:=20

OK, I'll give you a hint... it was related to my = decision to=20 change over from the original CAS to the Renesis CAS. I = got=20 that bright idea from last year's rotary get together at=20 Tracy's. =20

I've got it. = YOU were the=20 problem :-)

Rusty=20 =

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