X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from sccrmhc15.comcast.net ([63.240.77.85] verified) by logan.com (CommuniGate Pro SMTP 5.1.9) with ESMTP id 2092423 for flyrotary@lancaironline.net; Fri, 08 Jun 2007 20:48:10 -0400 Received-SPF: none receiver=logan.com; client-ip=63.240.77.85; envelope-from=home@jeff-owen.name Received: from jeffsnail (c-24-6-46-58.hsd1.ca.comcast.net[24.6.46.58]) by comcast.net (sccrmhc15) with SMTP id <2007060900473201500cec80e>; Sat, 9 Jun 2007 00:47:32 +0000 From: "Jeff Owen" To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Spark Plug Cleaning Date: Fri, 8 Jun 2007 17:47:01 -0700 Message-ID: <000001c7aa2f$bb18d4a0$6801a8c0@JeffsNail> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0001_01C7A9F5.0EBC4690" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6626 Importance: Normal In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3028 This is a multi-part message in MIME format. ------=_NextPart_000_0001_01C7A9F5.0EBC4690 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Ed, =20 There is an electro-chemical process shooters use to remove lead from a = gun barrel which might work if this is an elemental lead deposit. Take a = look at: = http://www.outers-guncare.com/products/chemicals/foul_out_system.aspx=20 =20 Jeff Owen -----Original Message----- From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Ed Anderson Sent: Friday, June 08, 2007 1:11 PM To: Rotary motors in aircraft Subject: [FlyRotary] Spark Plug Cleaning Getting around to see what can be done about the lead fouling sparkplugs causing the infamous "SAG". 1st experiment was to place the used spark plugs in a 30% solution of Hydrogen Peroxide. I did that and place the plugs and solution in an ultrasonic cleaner, turned it on and left it on = for 1 hour. =20 It appeared to clean everything off the plug - but, the lead. So far = the only chemical my research has indicated would dissolved metallic lead is Nitric Acid. Nope, not going to try that, I'll stick with buying new = plugs. =20 But, thought I would let folks know of the results. I was really hoping = the ultrasonic vibration would shake the lead crystals off the ceramic cone = of the plug - but either the idea is flawed or the small jewelry cleaning = size ultrasonic generator is simply not powerful enough. =20 Ed =20 =20 Ed Anderson Rv-6A N494BW Rotary Powered Matthews, NC eanderson@carolina.rr.com http://members.cox.net/rogersda/rotary/configs.htm#N494BW http://www.dmack.net/mazda/index.html ------=_NextPart_000_0001_01C7A9F5.0EBC4690 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message
Ed,
 
There=20 is an electro-chemical process shooters use to remove lead from a gun = barrel=20 which might work if this is an elemental lead deposit.  Take a look = at: http://www.outers-guncare.com/products/chemicals/foul_out_system.as= px 
 
Jeff=20 Owen
-----Original Message-----
From: = Rotary motors in=20 aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Ed=20 Anderson
Sent: Friday, June 08, 2007 1:11 PM
To: = Rotary=20 motors in aircraft
Subject: [FlyRotary] Spark Plug=20 Cleaning

Getting around to see what can be done about = the lead=20 fouling sparkplugs  causing the infamous "SAG".  1st = experiment was=20 to place the used spark plugs in a 30% solution of Hydrogen = Peroxide.  I=20 did that and place the plugs and solution in an ultrasonic cleaner, = turned it=20 on and left it on for 1 hour.
 
It appeared to clean everything off the plug - = but, the=20 lead.  So far the only chemical my research has indicated would = dissolved=20 metallic lead is Nitric Acid.  Nope, not going to try that, I'll = stick=20 with buying new plugs.
 
But, thought I would let folks know of the=20 results.  I was really hoping the ultrasonic vibration would = shake the=20 lead crystals off the ceramic cone of the plug - but either the idea = is flawed=20 or the small jewelry cleaning size ultrasonic generator is simply not = powerful=20 enough.
 
Ed
 
 
Ed Anderson
Rv-6A N494BW Rotary = Powered
Matthews,=20 NC
eanderson@carolina.rr.comhttp:/= /members.cox.net/rogersda/rotary/configs.htm#N494BW
http://www.dmack.net/mazda= /index.html
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