X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from ik-out-1112.google.com ([66.249.90.183] verified) by logan.com (CommuniGate Pro SMTP 5.2.2) with ESMTP id 2877022 for flyrotary@lancaironline.net; Tue, 29 Apr 2008 12:29:15 -0400 Received-SPF: pass receiver=logan.com; client-ip=66.249.90.183; envelope-from=wdleonard@gmail.com Received: by ik-out-1112.google.com with SMTP id b35so56124ika.3 for ; Tue, 29 Apr 2008 09:28:32 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:message-id:date:from:to:subject:in-reply-to:mime-version:content-type:references; bh=3sLh7+946JBKoTolHHnQJHQvJtLSw35hqHYtpt3qhuU=; b=e3NcZ+1KimFFmz9JPr2nn2o6zzsDBYtS6U7qJ9KERkKifxPhyBY1TmQzEheDZ8IpGP0E627xecYYSL04RS24MIGRVVawyfGYwmoGxXaSyWngtZwU8TpwaLgmIRafuhNGVWE6vdqULZWM1ftC7aBnEFovHDEV6eaA5tyMWz1kK2Y= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:in-reply-to:mime-version:content-type:references; b=T6HMFja2+eHq4FWo6L8pMU+SWlx+KoguddMGDldsoN0+ALl4H9dYdTVMK2jTk0qz/Bx8FpUsfAxiASZ+YFelZHsVP1BuGuUoSgY0shRTUsgX1Ffe2vO7oLCBig6aPsqAYe5DYgqv/P6wpBVUGoyYxTEr56Cb9AelaKYb2jP5YO0= Received: by 10.150.50.3 with SMTP id x3mr5301348ybx.30.1209486511353; Tue, 29 Apr 2008 09:28:31 -0700 (PDT) Received: by 10.150.145.16 with HTTP; Tue, 29 Apr 2008 09:28:31 -0700 (PDT) Message-ID: <1c23473f0804290928h726c7a0bx1f1858e013bb0dd5@mail.gmail.com> Date: Tue, 29 Apr 2008 09:28:31 -0700 From: "David Leonard" To: "Rotary motors in aircraft" Subject: Re: [FlyRotary] Re: SAG In-Reply-To: MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_Part_12158_3645825.1209486511327" References: ------=_Part_12158_3645825.1209486511327 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline Ed, I think you should just switch to MOGAS. Now that I have my system down, it actually takes less time and hassle on average than taxiing 200 yds to the pumps. My 30 gal gas caddy and 12v pump have already paid for themselves. -- David Leonard Turbo Rotary RV-6 N4VY http://N4VY.RotaryRoster.net http://RotaryRoster.net On Mon, Apr 28, 2008 at 8:47 AM, Ed Anderson wrote: > Good idea, Scott. Gun bore cleaners/solvents been suggested before. > What I have found out is none of the gun cleaners are true lead solvents. > It takes something like foaming nitric acid to dent lead - of course that is > lead in the metal form - something less drastic might work on what appears > to be a lead crystal form of some sort. (If view under a magnifying glass > you can see glints of light off what appears to be crystal facets - of > course, I guess it could be carbon. > > In any case, I would greatly like to find something that would remove the > stuff from the ceramic cone - my belief is that a large amplitude ultrasonic > cleaner might shake/jar the deposits off the ceramic. But, don't have one > of those handy to try out {:<(. > > I did try some ordinary TCP (and some specially formulate TCP) used to > remove/minimize lead deposits in air cooled aircraft engines. That did not > work either, it appears that the for the chemical reaction to be effective - > it needs the higher temperatures encountered with air-cooled cylinder heads > - the relative cooler rotary apparently just doesn't get the metal and spark > plug hot enough, long enough - (at least that's my theory). > > Ed > > Ed > > ----- Original Message ----- > *From:* SHIPCHIEF@aol.com > *To:* Rotary motors in aircraft > *Sent:* Monday, April 28, 2008 11:09 AM > *Subject:* [FlyRotary] Re: SAG > > I wonder id SAG effected spark plugs could be chemically treated to remove > deposits on the ceramic? > When I was in to shooting at Dept of Civial Marksmanship matches, we used > some liquid products to remove lead and or copper fouling from the barrel, > some were for scrubbing, some for soaking. > Perhaps soaking the ends of the old plugs in bore cleaner or something? > bleach? Carb cleaner? tomato juice? Who knows? > Just an idea. > Scott > > > ************** > Need a new ride? Check out the largest site for U.S. used car listings at > AOL Autos. > (http://autos.aol.com/used?NCID=aolcmp00300000002851) > > ------=_Part_12158_3645825.1209486511327 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline Ed, I think you should just switch to MOGAS.  Now that I have my system down, it actually takes less time and hassle on average than taxiing 200 yds to the pumps.  My 30 gal gas caddy and 12v pump have already paid for themselves.

--
David Leonard

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

On Mon, Apr 28, 2008 at 8:47 AM, Ed Anderson <eanderson@carolina.rr.com> wrote:
Good idea, Scott. Gun bore cleaners/solvents  been suggested before.  What I have found out is none of the gun cleaners are true lead solvents.  It takes something like foaming nitric acid to dent lead - of course that is lead in the metal form - something less drastic might work on what appears to be a lead crystal form of some sort.  (If view under a magnifying glass you can see glints of light off what appears to be crystal facets - of course, I guess it could be carbon.
 
In any case, I would greatly like to find something that would remove the stuff from the ceramic cone - my belief is that a large amplitude ultrasonic cleaner might shake/jar the deposits off the ceramic.  But, don't have one of those handy to try out {:<(.
 
I did try some ordinary TCP (and some specially formulate TCP) used to remove/minimize lead deposits in air cooled aircraft engines.  That did not work either, it appears that the for the chemical reaction to be effective - it needs the higher temperatures encountered with air-cooled cylinder heads - the relative cooler rotary apparently just doesn't get the metal and spark plug hot enough, long enough - (at least that's my theory).
 
Ed
 
Ed
----- Original Message -----
Sent: Monday, April 28, 2008 11:09 AM
Subject: [FlyRotary] Re: SAG

I wonder id SAG effected spark plugs could be chemically treated to remove deposits on the ceramic?
When I was in to shooting at Dept of Civial Marksmanship matches, we used some liquid products to remove lead and or copper fouling from the barrel, some were for scrubbing, some for soaking.
Perhaps soaking the ends of the old plugs in bore cleaner or something? bleach? Carb cleaner? tomato juice? Who knows?
Just an idea.
Scott


**************
Need a new ride? Check out the largest site for U.S. used car listings at AOL Autos.
(http://autos.aol.com/used?NCID=aolcmp00300000002851)




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