X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from fed1rmmtao04.cox.net ([68.230.241.35] verified) by logan.com (CommuniGate Pro SMTP 5.1.2) with ESMTP id 1597038 for flyrotary@lancaironline.net; Thu, 23 Nov 2006 11:14:06 -0500 Received-SPF: none receiver=logan.com; client-ip=68.230.241.35; envelope-from=alventures@cox.net Received: from fed1rmimpo02.cox.net ([70.169.32.72]) by fed1rmmtao04.cox.net (InterMail vM.6.01.06.03 201-2131-130-104-20060516) with ESMTP id <20061123161328.PKOQ7494.fed1rmmtao04.cox.net@fed1rmimpo02.cox.net> for ; Thu, 23 Nov 2006 11:13:28 -0500 Received: from BigAl ([72.192.132.90]) by fed1rmimpo02.cox.net with bizsmtp id qGDZ1V00Q1xAn3c0000000; Thu, 23 Nov 2006 11:13:33 -0500 From: "Al Gietzen" To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: Spark Plug Fouling and Temperature Date: Thu, 23 Nov 2006 08:13:32 -0800 Message-ID: <003101c70f1a$527e6550$6400a8c0@BigAl> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0032_01C70ED7.445B2550" 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 V6.00.2900.2962 This is a multi-part message in MIME format. ------=_NextPart_000_0032_01C70ED7.445B2550 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit We use the NGK R6725-115 plugs, gapped at .010". They have a retracted gap and fine wire electrodes. The heat range is ice cold. I have never fouled one. We use a MSD for leading and trailing. Lynn; I'm curious why you use such a small gap. Seems like a larger gap gives more spark exposure for better ignition. Al ------=_NextPart_000_0032_01C70ED7.445B2550 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable


We use the NGK R6725-115 plugs, gapped at .010". They have a = retracted gap and fine wire electrodes. The heat range is ice cold. I have never = fouled one. We use a MSD for leading and trailing.

Lynn;

I’m curious why you use such a = small gap.  Seems like a larger gap gives more spark exposure for better = ignition.

Al

 

------=_NextPart_000_0032_01C70ED7.445B2550--