X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from mail-fx0-f216.google.com ([209.85.220.216] verified) by logan.com (CommuniGate Pro SMTP 5.2.14) with ESMTP id 3748570 for flyrotary@lancaironline.net; Tue, 07 Jul 2009 19:14:10 -0400 Received-SPF: pass receiver=logan.com; client-ip=209.85.220.216; envelope-from=msteitle@gmail.com Received: by fxm12 with SMTP id 12so124707fxm.19 for ; Tue, 07 Jul 2009 16:13:33 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :date:message-id:subject:from:to:content-type; bh=gljZDi8Btq7oLVynf9rvTvNfn6NZ8vukcND8r2s9tQM=; b=JetZWEo/Ngb7mZSpqdHjQi0cytfXkA7IyMcV6nIROeWXAV90egeF3ab5ssZl8tnh4K lMMQu3TdAaOyAWZDxrt/yoxwTvDZ8EuutkuvRKyIDW0Q2KiMWu4rKnFFauUSHGfmJy3F 5NL4cV+hyu4d2UWJHh+I3BOwzSxQtrnanRDHQ= 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=xAmqzjbfleNg/wGDNJdbSzT+f9w5DB9PoRz1SlSv14UzNH/3plBEQlu5+G8nZXqXd4 omssFq1l+NPAaf2CZxl7OAFlzrusZM43jCYv7GyKHef1U5I0L6lKrvQwCP6QVdQbFpo5 6h8sOt7s/B5ARSS0S5/4fjZukEKCrYIIa55kI= MIME-Version: 1.0 Received: by 10.204.113.208 with SMTP id b16mr6201803bkq.179.1247008413388; Tue, 07 Jul 2009 16:13:33 -0700 (PDT) In-Reply-To: References: Date: Tue, 7 Jul 2009 18:13:33 -0500 Message-ID: <5cf132c0907071613o4a94b546t9ce7bcca09ac6271@mail.gmail.com> Subject: Re: [FlyRotary] Re: SAG - NKG From: Mark Steitle To: Rotary motors in aircraft Content-Type: multipart/alternative; boundary=0016e6d59d1d831067046e25c5b4 --0016e6d59d1d831067046e25c5b4 Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: quoted-printable Bill, That scenario never would have entered my mind. Fortunately, I'm running six individual LS1 coils. From your explanation, this shouldn't cause any problems with my engine. If I recall correctly, this also happens if you reverse the polarity on the coil. Mark S. On Tue, Jul 7, 2009 at 5:14 PM, wrote: > Your welcome Ed, > At Kawasaki we learned this problem the hard way. Late 1970's consumer OT= C > platinum plugs were just becoming affordable. The Kawasaki 900 Z-1 and la= ter > variants were starting to run poorly about 500 miles after tune ups. They > had the floating secondary coils. We found a lot of the dealerships were > putting in the platinum plugs. They made more money on them than the > standard plugs. Lots of hair pulling was caused. The plugs DID WORK BETTE= R > AT FIRST. They just went away very soon. If you know somebody with a soob= ie > powered plane using the original coil packs they were the same way. I > mentioned it to a guy at the Golden West Flyin, running a older soob in a > Glasstar and watched the light bulb come on. He always wondered why 2 of = his > 4 plugs failed first even though the cylinders always had good compressio= n > and ran great to that point. I really like the small coil on plug set up, > better spark and no firing backward! > Bill Jepson > > > -----Original Message----- > From: Ed Anderson > To: Rotary motors in aircraft > Sent: Tue, Jul 7, 2009 12:43 pm > Subject: [FlyRotary] Re: SAG - NKG > > Boy, thanks, Bill > > Never would have even occurred to me to watch out for mushrooming fine wi= re > electrodes =96 the knowledge and experience on this list is fabulous!! > > =3D0 A 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 > ------------------------------ > *From:* Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] > *On Behalf Of *wrjjrs@aol.com > *Sent:* Tuesday, July 07, 2009 12:38 PM > *To:* Rotary motors in aircraft > *Subject:* [FlyRotary] Re: SAG - NKG > > Mark, > One thing to watch out for on the fine-wire plugs, is NOT to run dual lea= d > coils. Some of the systems for the 20B fire both plugs at the same time. > This isn't a problem, but some of the engine management systems use 3 coi= ls > with dual high-tension leads to make things simpler. Since most of the > dual-lead coils use a floating secondary one plug fires normally and the > other fires BACKWARD sidewire to center electrode. The plug that fires > backward will wear the center electrode out faster. That isn't a problem > with standard plugs, but on the high end platinum or iridium plugs the > center electrode will erode or mushroom on the end. We saw this all the t= ime > on 4 cylinder motorcycle engines where they always used 2 dual lead coils= to > make the system cost less. The newer high performance bikes have gone to > coil on plug designs, and switch the low tension side to eleiminate the > problem. > Bill Jepson > > > -----Original Message----- > From: Mark Steitle > To: Rotary motors in aircraft > Sent: Tue, Jul 7, 2009 7:25 am > Subject: [FlyRotary] Re: SAG - NKG > John, > > I've been running Renesis (irridium) plugs in my 20B with good results. > Of course, they're about 5 times the price of the standard plugs. But if > they last 5 times longer, I feel that they are worth the price. > > Mark S. > On Tue, Jul 7, 2009 at 9:05 AM, John wrote: > Ed, it appears to me that the NKG report is suggesting that we use hotte= r > spark plugs, has anyone tried this. JohnD > > > ------------------------------ > *A Good Credit Score is 700 or Above. See yours in just 2 easy steps! > * > > ------------------------------ > *A Good Credit Score is 700 or Above. See yours in just 2 easy steps! > * > --0016e6d59d1d831067046e25c5b4 Content-Type: text/html; charset=windows-1252 Content-Transfer-Encoding: quoted-printable
Bill,
=A0
That scenario never would have entered my mind.=A0 Fortunately, I'= m running six individual LS1 coils.=A0 From your explanation, this shouldn&= #39;t cause any problems with my engine.=A0
=A0
If I recall correctly, this also happens if you reverse the polarity o= n the coil.=A0
=A0
Mark S.
=A0

=A0
On Tue, Jul 7, 2009 at 5:14 PM, <wrjjrs@aol.com> wrote= :
Your welcome Ed,
At Kawasaki = we learned this problem the hard way. Late 1970's consumer OTC platinum= plugs were just becoming affordable. The Kawasaki 900 Z-1 and later varian= ts were starting to run poorly about 500 miles after tune ups. They had the= floating secondary coils. We found a lot of the dealerships were putting i= n the platinum plugs. They made more money on them than the standard plugs.= Lots of hair pulling was caused. The plugs DID WORK BETTER AT FIRST. They = just went away very soon. If you know somebody with a soobie powered plane = using the original coil packs they were the same way. I mentioned it to a g= uy at the Golden West Flyin, running a older soob in a Glasstar and watched= the light bulb come on. He always wondered why 2 of his 4 plugs failed fir= st even though the cylinders always had good compression and ran great to t= hat point. I really like the small coil on plug set up, better spark and no= firing backward!
Bill Jepson


-----Original Message-----
From: Ed Anderson <= eanderson@ca= rolina.rr.com>
To: Rotary motors in aircraft <flyrotary@lancaironline.ne= t>
Sent: Tue, Jul 7, 2009 12:43 pm
Subject: [FlyRotary] Re: SAG - NKG
Boy, thanks, Bill
=A0
Never would have even occurred to= me to watch out for mushrooming fine wire electrodes =96 the knowledge and= experience on this list is fabulous!!
=A0
=3D0 A=20
Ed
=A0
Ed Anderson
Rv-6A N494BW Rotary P= owered
Matthews, NC
From: Ro= tary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of wrjjrs@aol.com
Sent: Tuesday, July 07, 200= 9 12:38 PM
To: Rotary mo= tors in aircraft
Subject: [FlyRotary] Re: SAG - NKG
=A0
Mark,
One thing to watch out for on t= he fine-wire plugs, is NOT to run dual lead coils. Some of the systems for = the 20B fire both plugs at the same time. This isn't a problem, but som= e of the engine management systems use 3 coils with dual high-tension leads= to make things simpler. Since most of the dual-lead coils use a floating s= econdary one plug fires normally and the other fires BACKWARD sidewire to c= enter electrode. The plug that fires backward will wear the center electrod= e out faster. That isn't a problem with standard plugs, but on the high= end platinum or iridium plugs the center electrode will erode or mushroom = on the end. We saw this=A0all the time on 4 cylinder motorcycle engines whe= re they always used=A02 dual lead coils to make the system cost less. The n= ewer high performance bikes have gone to coil on plug designs, and switch t= he low tension side to eleiminate the problem.
Bill Jepson=A0


-----Original Message-----
From: Mark Steitle = <msteitle@gmail.= com>
To: Rotary motors in aircraft <flyrotary@lancaironline.net><= br> Sent: Tue, Jul 7, 2009 7:25 am
Subject: [FlyRotary] Re: SAG - NKG=
John,
=A0
I've been running Renesis (irridium) plugs in my 20B with good resu= lts.=A0 Of course, they're about 5 times the price of the standard plug= s.=A0 But if they last 5 times longer, I feel that=A0they are=A0worth the p= rice.
=A0
Mark S.=A0
On Tue, Jul 7, 2009 at 9:05 AM, John <downing.j@sbcglobal.net> wrote:
Ed, it appears to me that the NKG report is suggesting that w= e use hotter spark plugs, has anyone tried this.=A0 JohnD
=A0
=A0
A Good Credit Score is 700 or Above. See yours in just 2 easy steps!<= /span>

A Good Credit Score is 700 or Above. See yours in just 2 easy steps!

--0016e6d59d1d831067046e25c5b4--