X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Fri, 06 Dec 2013 09:20:31 -0500 Message-ID: X-Original-Return-Path: Received: from rc1-smtp.comporium.net ([208.104.2.18] verified) by logan.com (CommuniGate Pro SMTP 6.0.7) with ESMTP id 6628278 for lml@lancaironline.net; Fri, 06 Dec 2013 07:49:34 -0500 Received-SPF: pass receiver=logan.com; client-ip=208.104.2.18; envelope-from=snopercod@comporium.net Received: from rg20.comporium.net ([208.104.244.60]) by rc1-smtp.comporium.net ({6ef86d1c-fcb7-4b71-ab61-5707d6041926}) via TCP (outbound) with ESMTP id 20131206124857824 for ; Fri, 06 Dec 2013 12:48:57 +0000 X-RC-FROM: X-RC-RCPT: Received: from 33.225.235.68.dsl.brvdnc.dynamic.citcom.Net (EHLO _127.0.0.1_) ([68.235.225.33]) by rg20.comporium.net (MOS 4.3.4-GA FastPath queued) with ESMTP id CHV37029 (AUTH snopercod); Fri, 06 Dec 2013 07:48:56 -0500 (EST) X-Original-Message-ID: <52A1C7B4.6020608@comporium.net> X-Original-Date: Fri, 06 Dec 2013 07:48:52 -0500 From: John Cooper User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:24.0) Gecko/20100101 Thunderbird/24.1.1 MIME-Version: 1.0 X-Original-To: lml@lancaironline.net Subject: Re: Bendix S4LN-21 Mag shorted? Content-Type: multipart/alternative; boundary="------------050503000202040206030008" X-MAG-OUTBOUND: comporium.redcondor.net@208.104.244.48/28 This is a multi-part message in MIME format. --------------050503000202040206030008 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Gary-- I hope I haven't really embarrassed myself by sending this mag back to the shop. My Fluke 87-V meter definitely has the capability to discriminate between 0.7 ohms and 0.0 ohms, so I should have been more careful and written down the _exact _reading. I'll check the right mag this morning and see what it reads. > Don't forget that the P-lead is almost shorted to ground all the time. > When the points are closed it is shorted and when the points are open > the resistance is something like 0.7 ohms. Easy to misinterpret that > as being "shorted." That might be your problem. If the mechanic > timed the mag with a buzzer, it shows the mag was certainly good. > Gary Casey --------------050503000202040206030008 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Gary--

I hope I haven't really embarrassed myself by sending this mag back to the shop. My Fluke 87-V meter definitely has the capability to discriminate between 0.7 ohms and 0.0 ohms, so I should have been more careful and written down the exact reading. I'll check the right mag this morning and see what it reads.

Don't forget that the P-lead is almost shorted to ground all the time. When the points are closed it is shorted and when the points are open the resistance is something like 0.7 ohms. Easy to misinterpret that as being "shorted." That might be your problem. If the mechanic timed the mag with a buzzer, it shows the mag was certainly good.

Gary Casey

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