X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from cdptpa-omtalb.mail.rr.com ([75.180.132.120] verified) by logan.com (CommuniGate Pro SMTP 5.2.2) with ESMTP id 2875392 for flyrotary@lancaironline.net; Mon, 28 Apr 2008 11:47:32 -0400 Received-SPF: pass receiver=logan.com; client-ip=75.180.132.120; envelope-from=eanderson@carolina.rr.com Received: from edward2 ([75.191.186.236]) by cdptpa-omta01.mail.rr.com with SMTP id <20080428154654.SHEX19888.cdptpa-omta01.mail.rr.com@edward2> for ; Mon, 28 Apr 2008 15:46:54 +0000 Message-ID: <000f01c8a947$1c9be4d0$2402a8c0@edward2> From: "Ed Anderson" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: SAG Date: Mon, 28 Apr 2008 11:47:06 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_000C_01C8A925.95583850" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.3138 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3198 This is a multi-part message in MIME format. ------=_NextPart_000_000C_01C8A925.95583850 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable 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 -----=20 From: SHIPCHIEF@aol.com=20 To: Rotary motors in aircraft=20 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=3Daolcmp00300000002851) ------=_NextPart_000_000C_01C8A925.95583850 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Good idea, Scott. Gun bore = cleaners/solvents=20 been suggested before. What I have found out is none of the = gun=20 cleaners are true lead solvents. It takes something like foaming = nitric=20 acid to dent lead - of course that is lead in the metal form - something = less=20 drastic might work on what appears to be a lead crystal form of some = sort. =20 (If view under a magnifying glass you can see glints of light off what = appears=20 to be crystal facets - of course, I guess it could be = carbon.

In any case, I would greatly like to = find=20 something that would remove the stuff from the ceramic cone - my belief = is that=20 a large amplitude ultrasonic cleaner might shake/jar the deposits off = the=20 ceramic. But, don't have one of those handy to try out=20 {:<(.

I did try some ordinary TCP (and some = specially=20 formulate TCP) used to remove/minimize lead deposits in air cooled = aircraft=20 engines. That did not work either, it appears that the for the = chemical=20 reaction to be effective - it needs the higher temperatures encountered = with=20 air-cooled cylinder heads - the relative cooler rotary apparently just = doesn't=20 get the metal and spark plug hot enough, long enough - (at least that's = my=20 theory).

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

From:=20 SHIPCHIEF@aol.com

To: Rotary motors in = aircraft

Sent: Monday, April 28, 2008 = 11:09=20 AM

Subject: [FlyRotary] Re: = SAG

I wonder id SAG effected spark = plugs could be=20 chemically treated to remove deposits on the ceramic?
When I was in = to=20 shooting at Dept of Civial Marksmanship matches, we used some liquid = products=20 to remove lead and or copper fouling from the barrel, some were for = scrubbing,=20 some for soaking.
Perhaps soaking the ends of the old plugs in bore = cleaner=20 or something? bleach? Carb cleaner? tomato juice? Who knows?
Just = an=20 idea.
Scott

**************
Need a new ride? = Check out=20 the largest site for U.S. used car listings at AOL=20 Autos.
(http://autos.aol.com/used?NCID=3Daolcmp00300000002851)=20 ------=_NextPart_000_000C_01C8A925.95583850--