X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from mail-ew0-f52.google.com ([209.85.215.52] verified) by logan.com (CommuniGate Pro SMTP 5.3.11) with ESMTP id 4665127 for flyrotary@lancaironline.net; Wed, 05 Jan 2011 15:42:24 -0500 Received-SPF: pass receiver=logan.com; client-ip=209.85.215.52; envelope-from=msteitle@gmail.com Received: by ewy23 with SMTP id 23so7634631ewy.25 for ; Wed, 05 Jan 2011 12:41:49 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:received:in-reply-to :references:date:message-id:subject:from:to:content-type; bh=tCqrBbAeprMBYzFJSHYXnBvB652kYJC4PhKiPwAaSJM=; b=cIlLWcgRXXzc304ULnu0Rb9wMQHbqusrP+FksiPsbT36suN8IDZO6n4OPW44HRS/p5 aunwQQFR7PYlRUGjw+Io+c+9FIDeTJE0RBUaZrad9Lv9C6bZeCi7A0vWVdwjjzaZswOS 9EOLFhP3kCOVR2F+NqOSyuXtPIJl8mWgFcOqo= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; b=HMUmXi+xhhIT9vPG4gbbnXgPjuRItZ0Sjqlr96DzpcBFnRmUSy+ipB3y83zdr57Ilh voOxlv6iNV3EoOXZn+rD326jOw6r2uHVG2HUd3Mz9RPxii421etcfa7DI8jXSo8N8eP0 Q7qM1gI8jsOPb9EJYNfi4ZtoFKamzXmgKVHvQ= MIME-Version: 1.0 Received: by 10.213.17.17 with SMTP id q17mr10084748eba.10.1294260109275; Wed, 05 Jan 2011 12:41:49 -0800 (PST) Received: by 10.213.33.206 with HTTP; Wed, 5 Jan 2011 12:41:49 -0800 (PST) In-Reply-To: References: Date: Wed, 5 Jan 2011 14:41:49 -0600 Message-ID: Subject: Re: [FlyRotary] Re: GM Coil Comparison From: Mark Steitle To: Rotary motors in aircraft Content-Type: multipart/alternative; boundary=0015174c347e0f749a04991f6a08 --0015174c347e0f749a04991f6a08 Content-Type: text/plain; charset=ISO-8859-1 Dennis, I have tried the standard 13B spark plugs, Renesis Irridium plugs, and Autolite racing plugs, all to no avail. I am running the D580 coils and 100LL. Yes, it sounds like it is just one rotor face at a time, but didn't know how to explain exactly what's happening. But it definitely gets your attention. I'm hoping there is an improvement (total cure) with the new 585 coils. Mark On Wed, Jan 5, 2011 at 2:32 PM, Dennis Havarlah wrote: > Steve > > On run-up I get about 50 rpm change from both to leading or trailing. I > normally do the check at about 3200 rpm. > > Now that you mention it, I would guess that the occasional misfire is > "probably" a total misfire of one rotor face. Don't really know though! > > Do you ever have a similar event? > > Dennis H. > > ----- Original Message ----- > *From:* Steven W. Boese > *To:* Rotary motors in aircraft > *Sent:* Wednesday, January 05, 2011 11:14 AM > *Subject:* [FlyRotary] Re: GM Coil Comparison > > Dennis, > > > > When you check the coils with the coil disable function on runup, is there > enough of a change that you would expect to notice one plug intermittently > not firing in cruise? > > > > Steve Boese > > > > > > > > *From:* Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] *On > Behalf Of *Dennis Havarlah > *Sent:* Wednesday, January 05, 2011 10:00 AM > *To:* Rotary motors in aircraft > *Subject:* [FlyRotary] Re: GM Coil Comparison > > > > Mark - You are not alone with your occasional intermittent misfire. I also > have the miss as you described - I only notice it in cruise. It happens > once every 15 to 30 minutes! I wonder if it is one plug not firing instead > of a complete miss of the cylinder. I'm using the Renesis RX-8 coils and RX-8 > Iridium plugs with Tracy's EC-2. Most of the time I use mogas. > > > > Dennis H. > > --0015174c347e0f749a04991f6a08 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable
Dennis,
=A0
I have tried the standard 13B spark plugs, Renesis Irridium plugs, and= Autolite racing plugs, all to no avail.=A0 I am running the D580 coils and= 100LL.=A0 Yes, it=A0sounds like=A0it is just one rotor face at a time, but= didn't know how to explain exactly what's happening.=A0 But it def= initely gets your attention.=A0 I'm hoping there is an improvement (tot= al cure) with the new 585 coils.=A0
=A0
Mark

On Wed, Jan 5, 2011 at 2:32 PM, Dennis Havarlah = <clouduste= r@austin.rr.com> wrote:
Steve
=A0
On run-up I get about 50 rpm change fr= om both to leading or trailing.=A0 I normally do the check at about 3200 rp= m.=A0
=A0
Now that you mention it, I would guess= that the occasional misfire is "probably" a total misfire of one= rotor face.=A0 Don't really know though!=A0
=A0
Do you ever have a similar event?
=A0
Dennis H.
----- Original Message -----
Sent: Wednesday, January 05, 2011 11= :14 AM
Subject: [FlyRotary] Re: GM Coil Com= parison

Denn= is,

=A0<= /span>

When= you check the coils with the coil disable function on runup, is there enou= gh of a change that you would expect to notice one plug intermittently not = firing in cruise?

=A0<= /span>

Stev= e Boese

=A0<= /span>

=A0<= /span>

=A0<= /span>

From:<= span style=3D"FONT-SIZE: 10pt"> Rotary motors in aircraft [mailto:flyrotary@lancair= online.net] On Behalf Of Dennis Havarlah
Sent: Wednesday, January 05, 2011 10:00 AM
To: Rotary moto= rs in aircraft
Subject: [FlyRotary] Re: GM Coil Comparison=

=A0

Mark - You are not a= lone with your occasional intermittent misfire.=A0 I also have the miss as = you described - I only notice it in cruise.=A0 It happens once every 15 to = 30 minutes!=A0 I wonder if it is one plug not firing instead of a complete = miss of the cylinder.=A0=A0 I'm using the Renesis RX-8 coils and RX-8 Iridium plugs with Tracy's EC-2.=A0 Most of the time I use mogas.= =A0

=A0

Dennis H.


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