X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from smtp103.vzn.mail.mud.yahoo.com ([68.142.203.47] verified) by logan.com (CommuniGate Pro SMTP 5.1.2) with SMTP id 1597941 for flyrotary@lancaironline.net; Thu, 23 Nov 2006 20:23:39 -0500 Received-SPF: pass receiver=logan.com; client-ip=68.142.203.47; envelope-from=pjmick@verizon.net Received: (qmail 46509 invoked from network); 24 Nov 2006 01:23:20 -0000 Received: from unknown (HELO ?192.168.1.44?) (pjmick@verizon.net@71.111.117.25 with plain) by smtp103.vzn.mail.mud.yahoo.com with SMTP; 24 Nov 2006 01:23:19 -0000 X-YMail-OSG: xCkg7AIVM1m_3ZILKAM1bRzB4luq.71jZLmDHldHPR8FXuVv6hUysFjOYkZ.TbsBYAyW0x6mJVmNbQABCEOYu96csEuVsmiGePbbV.B7KAE1ULkTle0wVw-- Message-ID: <4566487B.3030005@verizon.net> Date: Thu, 23 Nov 2006 17:18:51 -0800 From: Perry Mick User-Agent: Mozilla/5.0 (Windows; U; Win98; en-US; rv:1.7.2) Gecko/20040804 Netscape/7.2 (ax) X-Accept-Language: en-us, en MIME-Version: 1.0 To: flyrotary@lancaironline.net Subject: Re: [FlyRotary] Re: Spark Plug Fouling and Temperature Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Good catch, I didn't notice that. Probably not a typo, as NGK is Japanese and does things metric, while Sac Sky Ranch is US and probably uses English units. 900F is 482 C if I did the conversion correctly. That says that lead fouling should not occur above 482 C? Not my experience. Aviation in the US uses a strange mix of units, AWOS reports altitudes in feet but temperatures in C. >Charlie England wrote: >The quote for carbon uses C; the quote for lead uses F. Is one a typo?