X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from qw-out-2122.google.com ([74.125.92.25] verified) by logan.com (CommuniGate Pro SMTP 5.3c4) with ESMTP id 4032427 for flyrotary@lancaironline.net; Sun, 20 Dec 2009 15:11:50 -0500 Received-SPF: pass receiver=logan.com; client-ip=74.125.92.25; envelope-from=david.staten@gmail.com Received: by qw-out-2122.google.com with SMTP id 9so981286qwb.25 for ; Sun, 20 Dec 2009 12:11:12 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:message-id:date:from :user-agent:mime-version:to:subject:references:in-reply-to :content-type:content-transfer-encoding; bh=f9407lzsWX12BBXn5CabVlK9U3QT4RTFqYwMwezX9GE=; b=BHvTm8aCybX4xwzMOx26ZI+qe1JV8ErhTvR2XVQjdJKqv1Ph4hBFWiesPkFFza5Ftx U8/y+f8o5+ns2oKWw86StAU6nBd94c+2/j6mPzOZSECeADaHc1ZOe8M59cFGovrTMEG9 02iMDAy2NrsGe7ac4zLFovOesCAK1jvhQP4Hk= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:user-agent:mime-version:to:subject:references :in-reply-to:content-type:content-transfer-encoding; b=gzmXAz9W/xvL/bLEBlqJw/hWt/qTr2/UD7aJWut9bk3O73N1MrqfAIwC3uv67pTMYQ PYZioVxWSndEAyHwZqjkM1ZLz7a0D6kC8cmIFq2KDd7FmMvVzTqpHD8x1MB+c2oN4VOC OYdnd7CaJlQlCg+d1t/HCx296RaFYWeXITCH4= Received: by 10.224.41.82 with SMTP id n18mr3505777qae.254.1261339872751; Sun, 20 Dec 2009 12:11:12 -0800 (PST) Return-Path: Received: from ?192.168.1.103? ([216.80.140.47]) by mx.google.com with ESMTPS id 7sm13033656qwf.54.2009.12.20.12.11.11 (version=TLSv1/SSLv3 cipher=RC4-MD5); Sun, 20 Dec 2009 12:11:12 -0800 (PST) Message-ID: <4B2E84E3.2020108@gmail.com> Date: Sun, 20 Dec 2009 14:11:15 -0600 From: Dave User-Agent: Thunderbird 2.0.0.23 (Windows/20090812) MIME-Version: 1.0 To: Rotary motors in aircraft Subject: Re: [FlyRotary] Re: Spiral core wires References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit If its grounded at both ends its not working as a shield, its working as an alternate grounding path (and potential for ground loop) Dave william singer wrote: > Hi, > > I am not an expert, but many years ago I was taught to only ground a > shield at one end. > > ----- Original Message ----- > *From:* Lynn Hanover > *To:* Rotary motors in aircraft > *Sent:* Friday, December 18, 2009 6:07 PM > *Subject:* [FlyRotary] Spiral core wires > > > > I run my sensor wires (Crank trigger distributor pick up wires or > whatever you might use) through dash 4 Teflon lined braided > stainless hose with the braid grounded at each end. This keeps > noise out of the trigger circuit, and helps prevent cross fire. > Keep primary wires away from secondary wires. > > > Lynn E. Hanover > >