X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from imr-ma04.mx.aol.com ([64.12.206.42] verified) by logan.com (CommuniGate Pro SMTP 5.2.14) with ESMTP id 3750927 for flyrotary@lancaironline.net; Thu, 09 Jul 2009 12:22:56 -0400 Received-SPF: pass receiver=logan.com; client-ip=64.12.206.42; envelope-from=WRJJRS@aol.com Received: from imo-ma03.mx.aol.com (imo-ma03.mx.aol.com [64.12.78.138]) by imr-ma04.mx.aol.com (8.14.1/8.14.1) with ESMTP id n69GMFsB031218 for ; Thu, 9 Jul 2009 12:22:15 -0400 Received: from WRJJRS@aol.com by imo-ma03.mx.aol.com (mail_out_v40_r1.5.) id q.d41.457b3bdf (37134) for ; Thu, 9 Jul 2009 12:22:11 -0400 (EDT) Received: from smtprly-mb02.mx.aol.com (smtprly-mb02.mx.aol.com [64.12.207.149]) by cia-ma02.mx.aol.com (v124.15) with ESMTP id MAILCIAMA028-5c634a56192917b; Thu, 09 Jul 2009 12:22:10 -0400 Received: from WEBMAIL-MC05 (webmail-mc05.webmail.aol.com [64.12.170.82]) by smtprly-mb02.mx.aol.com (v124.15) with ESMTP id MAILSMTPRLYMB021-5c634a56192917b; Thu, 09 Jul 2009 12:22:01 -0400 References: To: flyrotary@lancaironline.net Subject: Re: [FlyRotary] Re: SAG- Spark plugs 2592 or 2692? Date: Thu, 09 Jul 2009 12:22:01 -0400 X-AOL-IP: 66.253.96.220 In-Reply-To: X-MB-Message-Source: WebUI MIME-Version: 1.0 From: wrjjrs@aol.com X-MB-Message-Type: User Content-Type: multipart/alternative; boundary="--------MB_8CBCEC8860205BA_1020_2526_WEBMAIL-MC05.sysops.aol.com" X-Mailer: AOL Webmail 43735-STANDARD Received: from 66.253.96.220 by WEBMAIL-MC05.sysops.aol.com (64.12.170.82) with HTTP (WebMailUI); Thu, 09 Jul 2009 12:22:01 -0400 Message-Id: <8CBCEC885F61A0C-1020-1225@WEBMAIL-MC05.sysops.aol.com> X-Spam-Flag:NO ----------MB_8CBCEC8860205BA_1020_2526_WEBMAIL-MC05.sysops.aol.com Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Hey Group lets look at the obvious about wether or not a plug will protrud= e enough to clip the seal. Measure the distance from the seal surface to= the end of the sidewires of a standard plug. If the new plug isn't any lo= nger it cant hurt the apex seals. Heat range is another story all together= . Bill Jepson -----Original Message----- From: Chris Barber To: Rotary motors in aircraft Sent: Wed, Jul 8, 2009 4:56 pm Subject: [FlyRotary] Re: SAG- Spark plugs 2592 or 2692? So, I am guessing by this thread that it is ok to use the none shrouded st= ock NKG plugs.=C2=A0 I have not looked, but now assume that the more stand= ard type automotive=C2=A0plug fits even=C2=A0with it longer electrodes ext= ending further out. =C2=A0 Cpl. Christopher Barber, JD Badge 330 Bellaire Police Department 5110 Jessamine Bellaire, Texas 77401 =C2=A0 713-668-0487 713-662-8289 fax =C2=A0 CBarber@BellairePolice.com From: Rotary motors in aircraft on behalf of Kelly Troyer Sent: Wed 7/8/2009 6:44 PM To: Rotary motors in aircraft Subject: [FlyRotary] SAG- Spark plugs 2592 or 2692? Bill, =C2=A0You are correct................You have to look up the AR2592 plugs= by part number............This plug is actually used in some early=C2=A0Chevrolet and Chrysler Big block engin= es for racing.......... -- Kelly Troyer "Dyke Delta"_13B ROTARY Engine "RWS"_RD1C/EC2/EM2 "Mistral"_Backplate/Oil Manifold =C2=A0 -------------- Original message from "Bill Br adburry" : -------------- Kelly, I don=E2=80=99t see a call out for the rotary engine in the Autolite info= =E2=80=A6??? =C2=A0 Bill B=C2=A0 =C2=A0 From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Be= half Of Kelly Troyer Sent: Wednesday, July 08, 2009 3:27 PM To: Rotary motors in aircraft Subject: [FlyRotary] SAG- Spark plugs 2592 or 2692? Jeff and All, =C2=A0 =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 I believe the mystery is solved......= .........Apparently "AR2692" is a typo error and "AR2592" is correct..............Check out the link below............F= ull of info.....=C2=A0 =C2=A0 =C2=A0=C2=A0 http://www.autolite.com/pdf/Autolite_HP_Apps.pdf =C2=A0 Kelly Troyer "Dyke Delta"_13B ROTARY Engine "RWS"_RD1C/EC2/EM2 "Mistral"_Backplate/Oil Manifold =C2=A0 -------------- Original message from "Kelly Troyer" : ----= ---------- Jeff, =C2=A0 I have never found a trace of a "AR2692"............Lynn which is= correct ??................... -- Kelly Troyer "Dyke Delta"_13B ROTARY Engine "RWS"_RD1C/EC2/EM2 "Mistral"_Backplate/Oil Manifold =C2=A0 -------------- Original message from Jeff Whaley := -------------- Lynn=E2=80=99s email referenced 2 part numbers =E2=80=A6 Poor folks race= with Autolight AR2692 and =E2=80=A6 In the picture, left to right is the= Autolight AR2592. So which number is it correct? 2592 or 2692? Jeff =C2=A0 From: Rotary motors in aircraft [ mailto:flyrotary@lancaironline.net] On Behalf Of Kelly Troyer Sent: Wednesday, July 08, 2009 2:35 PM To: Rotary motors in aircraft Subject: [FlyRotary] SAG- Spark plugs =C2=A0 Lynn and Group, =C2=A0 =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 I checked my local "Auto= Zone" and they claimed to be unable to get the "AutoLite" AR2592 sparkplug...............Checked "Rock Auto" (Link below) and they= have them in packs of 4 for $2.69 (each plug)...........Ordered 8 of them for $21.52 += $5.47 shipping but "AutoLite" has a rebate offer of $0.50 per plug for up to 16 plugs unt= il Nov. 30,2009 for copper core plugs (rebate link below).............To find the sparkplu= g do a part number search (AR2592)=C2=A0, Add the manufacturer (AutoLite) , Then use "all" fo= r the part group because if you use "Ignition" and "Sparkplug" for part type it will say "N= o part found".... =C2=A0 FWIW=C2=A0 =C2=A0 =C2=A0 http://www.rockauto.com/catalog/raframecatalog.php?a=3DG-Store =C2=A0 http://www.autolite.com/rebate/pdf/spark-plug-09.pdf -- Kelly Troyer "Dyke Delta"_13B ROTARY Engine "RWS"_RD1C/EC2/EM2 "Mistral"_Backplate/Oil Manifold =C2=A0 -------------- Original message from Lynn Hanover := -------------- In a message dated 7/7/2009 3:22:56 P.M. Pacific Daylight Time, bbradburry= @bellsouth.net writes: Steve, I hope Lynn chimes in here.=C2=A0 He has seen a lot of plugs under a lot= of conditions.=C2=A0 They look pitted to m e.=C2=A0 There seems nothing wrong with your conditions.=C2=A0 The only thing on the list would be too lean.?? Someone is out there writing up a great response right now!=C2=A0 :>) Bill B That plug has been too hot. =C2=A0 Stock Mazda plugs are rather cold in heat range by way of the guards aroun= d the shell. The electrode runs a bit hotter than normal. Plug heat ranges= are determined by how far down the shell the porcelain touches. The longe= r the heat path, the hotter the plug. =C2=A0 Using car plugs in the aircraft application seems to be asking for trouble= . In the car on the freeway you use 2,600 RPM and 1/2 throttle, maybe 24= to 28 HP. Not much of=C2=A0a challenge for a spark plug. But there is the= driver who will jump into his 95 twin turbo in LA and run out to=C2=A0LasV= egas at full tilt and expect to still have an engine when he gets there.= And usually he does. =C2=A0So, if I was to use a street plug in an aircra= ft, I would use the 93-95 twin turbo plug, whatever that is. =C2=A0 The aircraft application, less the 100LL fuel problem, is clearly a cold= racing plug with a conventional gap or close to it. =C2=A0 Years ago when we started racing rotaries, Champion said to use the N-57G= Fine wire center with gold paladium plating and a conventional ground str= ap. About 20% of the center wire is exposed in an end view. =C2=A0 The N-57G and similar are discontinued and the N-82 series=3D2 0replaced it. The shell is thinner and the porcelain is wider. Same fine= wire center, no gold anything. 20% of the wire exposed in an end view. Both worked fine even with points and a Kettering coil. =C2=A0 Poor folks race with Autolight AR2692 end style and small porcelain just= like the N-57G. Full size center wire, conventional strap, but 100% of th= e center wire is exposed in an end view. Actually used by NASCAR and the= local circle track people, and stocked by Autozone and others. About $5.0= 0 a box of 4. They work fine. I raced them one weekend, no problems, but= we were getting the NGK plugs for free so I stuck with them. =C2=A0 The NGKR6725-115 stamped on the body actually means that the heat range is= 11.5 not 115. $25.00 each. 50% of the center wire exposed in an end view. Free for some Rotary engine= d competitors. Retracted gap (the whole thing is inside the shell. Fine wi= re center and fine wire ground strap. Ice cold. Long body so it is easy to= install and remove in the rotary. =C2=A0 I grind off those eyebrow things above the plug holes so I can use any plu= g I like. And any 5/8" plug just goes in so easy. Most heat ranges are ava= ilable in the 5/8" shells. =C2=A0 Rotaries do not like high heat range plugs. The housings crack across the= leading plug hole. Over time a complete set of radial cracks form. =C2=A0 In the picture, left to right is the Autolight AR2592, Champion N-82,20NGK= R6725-115, and Champion N-57G.=C2=A0 =C2=A0 Lynn E. Hanover =C2=A0 Warning: This e-mail transmission, and any documents, files or previous e-= mails attached to it, may contain confidential information that is legally= privileged. If you are not the intended recipient or the person responsib= le for delivering it to the intended recipient, you are hereby notified th= at any disclosure, copying, distribution or use of any of the information= contained in or attached to this transmission is STRICTLY PROHIBITED. If= you have received this transmission in error, please immediately notify= us by telephone at 713-662-8132 and destroy the original transmission and= its attachments without reading them. Thank you. ----------MB_8CBCEC8860205BA_1020_2526_WEBMAIL-MC05.sysops.aol.com Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset="utf-8" Hey Group lets look at the obvious about wether or not a plug will protrud= e enough to clip the seal. Measure the distance from the seal surface to= the end of the sidewires of a standard plug. If the new plug isn't any lo= nger it cant hurt the apex seals. Heat range is another story all together= .
Bill Jepson


-----Original Message-----
From: Chris Barber <cbarber@bellairepolice.com>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Wed, Jul 8, 2009 4:56 pm
Subject: [FlyRotary] Re: SAG- Spark plugs 2592 or 2692?

So, I am guessi= ng by this thread that it is ok to use the none shrouded stock NKG plugs.&= nbsp; I have not looked, but now assume that the more standard type automo= tive plug fits even with it longer electrodes extending further= out.
 
Cpl. Christopher Barber, JD
Badge 330
Bellaire Police Department
5110 Jessamine
Bellaire, Texas 77401
 
713-668-0487
713-662-8289 fax
=3D0 A
 

From: Rotary motors in aircraft on beh= alf of Kelly Troyer
Sent: Wed 7/8/2009 6:44 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] SAG- Spark plugs 2592 or 2692?

Bill,
 You are correct................You have to look up the AR2592= plugs by part number............This plug
is actually used in some early Chevrolet and Chrysler Big block= engines for racing..........
--
Kelly Troyer
"Dyke Delta"_13B ROTARY Engine
"RWS"_RD1C/EC2/EM2
"Mistral"_Backplate/Oil Manifold



 
-------------- Original message from "Bill Bradburry" <= bbradburry@bellsouth.net&g= t;: --------------

Kelly,
I don=E2=80=99t see a call out for the rotary engine= in the Autolite info=E2=80=A6???
 
Bill B 
 
From: Rotary motors in aircraft [mailto:flyrotary@lancaironli= ne.net] On Behalf Of K= elly Troyer
Sent: Wednesday, July 08,= 2009 3:27 PM
To: Rotary motors in aircr= aft
Subject: [FlyRotary] SAG-= Spark plugs 2592 or 2692?
Jeff and All,
 
       I believe the my= stery is solved...............Apparently "AR2692" is a typo error
and "AR2592" is correct..............Check out the= link below............Full of info..... 
 
 

Kelly Troyer
"Dyke Delta"_13B ROTARY Engine
"RWS"_RD1C/EC2/EM2
"Mistral"_Backplate/Oil Manifold


 
-------------- Original message from "Kelly Troyer"= <keltro@att.net>: -----------= ---


Jeff,
  I have never found a trace of a "AR2692"......= ......Lynn which is correct ??...................
--
Kelly Troyer
"Dyke Delta"_13B ROTARY Engine
"RWS"_RD1C/EC2/EM2
"Mistral"_Backplate/Oil Manifold


 
-------------- Origin= al message from Jeff Whaley <jw= haley@datacast.com>: --------------
Lynn=E2=80=99s email refere= nced 2 part numbers =E2=80=A6 Poor folks race wi th Autolight AR2692 and =E2=80=A6 In the picture, left to right is the Aut= olight AR2592.
So which number is it= correct? 2592 or 2692?
Jeff
 
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Kelly Troyer
Sent: Wednesday, July 08,= 2009 2:35 PM
To: Rotary motors in aircr= aft
Subject: [FlyRotary] SAG-= Spark plugs
 
Lynn and Group,
 
         I ch= ecked my local "Auto Zone" and they claimed to be unable to get the "AutoL= ite"
AR2592 sparkplug...............Checked "Rock Auto" (L= ink below) and they have them in
packs of 4 for $2.69 (each plug)...........Ordered 8= of them for $21.52 + $5.47 shipping
but "AutoLite" has a rebate offer of $0.50 per plug= for up to 16 plugs until Nov. 30,2009
for copper core plugs (rebate link below)....= .........To find the sparkplug do a part number
search (AR2592) , Add the manufacturer (AutoLite= ) , Then use "all" for the part group
because if you use "Ignition" and "Sparkplug" for par= t type it will say "No part found"....
 
FWIW 
 
 
 
--
Kelly Troyer
"Dyke Delta"_13B ROTARY Engine
"RWS"_RD1C/EC2/EM2
"Mistral"_Backplate/Oil Manifold

 
-------------- Origin= al message from Lynn Hanover <le= hanover@gmail.com>: --------------
In a message dated 7/7/2009 3:22:56 P.M. Pacific Dayl= ight Time, bbradburry@bellsout= h.net writes:
Steve,
I hope Lynn chimes in here.  He has seen a lot of plugs under a lot= of
conditions.  They look pitted to me.  There seems nothing wrong= with your
conditions.  The only thing on the list would be too lean.??
Someone is out there writing up a great response right now!  :>) Bill B
That plug has been too hot.
 
Stock Mazda plugs are rather cold in heat range by wa= y of the guards around the shell. The electrode runs a bit hotter than nor= mal. Plug heat ranges are determined by how far down the shell the porcela= in touches. The longer the heat path, the hotter the plug. <= /div>
 
Using car plugs in the aircraft application seems to= be asking for trouble. In the car on the freeway you use 2,600 RPM and 1/= 2 throttle, m aybe 24 to 28 HP. Not much of a challenge for a spark plug. But there= is the
driver who will jump into his 95 twin turbo in LA and= run out to LasVegas at full tilt and expect to still have an engine= when he gets there. And usually he does.  So, if I was to use a stre= et plug in an aircraft, I would use the 93-95 twin turbo plug, whatever th= at is.
 
The aircraft application, less the 100LL fuel problem= , is clearly a cold racing plug with a conventional gap or close to it.
 
Years ago when we started racing rotaries, Champion= said to use the N-57G Fine wire center with gold paladium plating and a= conventional ground strap. About 20% of the center wire is exposed in an= end view.
 
The N-57G and similar are discontinued and the N-82= series replaced it. The shell is thinner and the porcelain is wider. Same= fine wire center, no gold anything. 20% of the wire exposed in an end vie= w.
Both worked fine even with points and a Kettering coi= l.
 
Poor folks race with Autolight AR2692 end style and= small porcelain just like the N-57G. Full size center wire, conventional= strap, but 100% of the center wire is exposed in an end view. Actually us= ed by NASCAR and the local circle track people, and stocked by Autozone an= d others. About $5.00 a box of 4. They work fine. I raced them one weekend= , no problems, but we were getting the NGK plugs for free so I stuck with= them.
 
The NGKR6725-115 stamped on the body actually means= that the heat range is 11.5 not 115. $25.00 each.
50% of the center wire exposed in an end view. Free= for some Rotary engined competitors. Retracted gap (the whole thing is in= side the shell. Fine wire center and fine wire ground strap. Ice cold. Lon= g body so it is easy to install and remove in the rotary.
 
I grind off those eyebrow things above the plug holes= so I can use any plug I like. And any 5/8" plug just goes in so easy. Mos= t heat ranges are available in the 5/8" shells.
 
Rotaries do not like high heat range plugs. The housi= ngs crack across the leading plug hole. Over time a complete set of radial= cracks form.
 
In the picture, left to right is the Autolight AR2592= , Champion N-82, NGK R6725-115, and Champion
N-57G. 
 
Lynn E. Hanover
 

Warning: This e-mail transmission, and any documents, files or previous e-= mails attached to it, may contain confidential information that is legally= privileged. If you are not the intended recipient or the person responsib= le for delivering it to the intended recipient, you are hereby notified th= at any disclosure, copying, distribution or use of any of the information= contained in or attached to this transmission is STRICTLY PROHIBITED. If= you have received this transmission in error, please immediately notify= us by telephone at 713-662-8132 and destroy the original transmission and= its attachments without reading them. Thank you.

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