X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Mon, 09 Dec 2013 07:43:48 -0500 Message-ID: X-Original-Return-Path: Received: from rc2-smtp.comporium.net ([208.104.2.6] verified) by logan.com (CommuniGate Pro SMTP 6.0.7) with ESMTP id 6628831 for lml@lancaironline.net; Fri, 06 Dec 2013 13:49:15 -0500 Received-SPF: pass receiver=logan.com; client-ip=208.104.2.6; envelope-from=snopercod@comporium.net Received: from rg20.comporium.net ([208.104.244.60]) by rc2-smtp.comporium.net ({44220f39-1a1f-4b8b-8e3d-7d4391b51326}) via TCP (outbound) with ESMTP id 20131206184839158 for ; Fri, 06 Dec 2013 18:48:39 +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 CHW78556 (AUTH snopercod); Fri, 06 Dec 2013 13:48:38 -0500 (EST) X-Original-Message-ID: <52A21C00.5050004@comporium.net> X-Original-Date: Fri, 06 Dec 2013 13:48:32 -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="------------090000020608070301060302" X-MAG-OUTBOUND: comporium.redcondor.net@208.104.244.48/28 This is a multi-part message in MIME format. --------------090000020608070301060302 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit I'm awarding myself the Homer Simpson Award for Excellence in Magneto Troubleshooting. Doh! On the Internet I found the Bendix S-20 Series Magneto Overhaul Manual . Page 17 of the .pdf reads: *"Primary resistance between breaker and ground leads shall be 0.2 to 0.6 ohms. Secondary resistance between high tension terminal and ground lead shall be 12000 to 16000 ohms."* Luckily, my A&E hadn't sent the mag back to the shop yet so I took an _accurate _measurement with my Fluke and the primary resistance turned out to be 0.4 ohms, smack in the middle of the proper range. I apologized profusely and slunk back to my hangar with the left mag. But this saga isn't over yet, because I checked the _right _mag and it reads _open _at the P-lead terminal. To be continued... --------------090000020608070301060302 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit I'm awarding myself the Homer Simpson Award for Excellence in Magneto Troubleshooting. Doh!  On the Internet I found the Bendix S-20 Series Magneto Overhaul Manual . Page 17 of the .pdf reads:
"Primary resistance between breaker and ground leads shall be 0.2 to 0.6 ohms. Secondary resistance between high tension terminal and ground lead shall be 12000 to 16000 ohms."
Luckily, my A&E hadn't sent the mag back to the shop yet so I took an accurate measurement with my Fluke and the primary resistance turned out to be 0.4 ohms, smack in the middle of the proper range. I apologized profusely and slunk back to my hangar with the left mag.

But this saga isn't over yet, because I checked the right mag and it reads open at the P-lead terminal. To be continued...
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