Return-Path: Sender: (Marvin Kaye) To: lml Date: Thu, 18 Jul 2002 11:28:15 -0400 Message-ID: X-Original-Return-Path: Received: from [143.232.48.201] (HELO mail.arc.nasa.gov) by logan.com (CommuniGate Pro SMTP 4.0b5) with ESMTP id 1641015 for lml@lancaironline.net; Thu, 18 Jul 2002 11:18:28 -0400 Received: from [143.232.221.83] (reinath.arc.nasa.gov [143.232.221.83]) by mail.arc.nasa.gov (8.9.3/8.9.3) with ESMTP id IAA05274 for ; Thu, 18 Jul 2002 08:18:28 -0700 (PDT) Mime-Version: 1.0 X-Original-Message-Id: X-Original-Date: Thu, 18 Jul 2002 08:18:27 -0700 X-Original-To: lml@lancaironline.net From: "Mike S. Reinath" Subject: Re: B&C Starter Problem Content-Type: text/plain; charset="us-ascii" ; format="flowed" Thanks for the replies to the question about my starter problem. Looks like I may be buying a new Skytec starter, considering Ken's experience with the same problem. Brent writes: >One. The starter is shorted and when you close the solenoid 300 to >500 amps circulates through the >battery dropping the terminal >voltage to 1 volt. (very not likely). When I turn the key during the hot-start attempt (starter not working), the voltage drops by about 1 volt, not to 1 volt. In other works, I can sit and watch the VMS display -- which normally resets during cranking -- and the voltage display will go from 12.7 v to about 11.7 v when I turn the key. Therefore, some current is flowing to the starter, but not enough. (Voltage is measured at the main bus.) >Two. The battery has an internal, intermittent and temperature >dependent open in one of the cells or >intercell connections. (not >likely) The battery is not getting hot. I do not believe there is a problem with the battery. >Three. One of your connections is corroded and when things get hot >it expands and opens. (My first >bet) Remember, when you heat a >fastener everything gets bigger, even the gaps. I've already checked the connections at the battery end when I replaced my solenoid. I'll check the starter end, but I don't think this is the problem -- during my routine inspections, I have looked at the starter connections and found no problems. The plane is new -- no corrosion. My terminals are crimped and then soldered. The first time I noticed the problem was two weeks after the first flight when I attempted a hot start. I believe it's a problem inside the starter. A connection inside the starter is opening up when it gets hot. Mike Reinath 360 MKII std. build N3602M