Return-Path: Received: from smtp810.mail.sc5.yahoo.com ([66.163.170.80] verified) by logan.com (CommuniGate Pro SMTP 4.1.8) with SMTP id 3062109 for flyrotary@lancaironline.net; Thu, 04 Mar 2004 00:42:14 -0500 Received: from unknown (HELO Davidscmptr) (dcarter11@sbcglobal.net@64.219.115.116 with login) by smtp810.mail.sc5.yahoo.com with SMTP; 4 Mar 2004 05:42:13 -0000 Message-ID: <088101c401ab$625fd6e0$6401a8c0@Davidscmptr> Reply-To: "David Carter" From: "David Carter" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Ideal Cooling System Plumbing (was Re: [FlyRotary] Re: overflow connections Date: Wed, 3 Mar 2004 23:41:46 -0600 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1158 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1165 Mark, I can't see why you think that. If there's a leak anywhere, and if the level of coolant goes down 2-3 inches, then the coolant temp sensor at the end of the block gets uncovered by coolant and the combustion chamber there ceases to be cooled and that temp sensor will cause a temp gage start climbing (now reading CHT instead of coolant temp) and an alarm from the engine monitoring system will go off. So, I should know there's a leak before the engine block empties and the seals are damaged. I don't see how the plumbing I described makes the system more susceptable to uncovering the water pump inlet. If the leak is so bad the level falls below the inlet of the water pump, it ain't gonna pump, period, any system design. Help me if I'm missing something. David ----- Original Message ----- From: "Marvin Kaye" To: "Rotary motors in aircraft" Sent: Wednesday, March 03, 2004 8:25 AM Subject: [FlyRotary] Re: Ideal Cooling System Plumbing (was Re: [FlyRotary] Re: overflow connections > Posted for Mark Steitle : > > David, > Won't a system as you have described stop pumping much sooner in the > event of a leak, or low coolant level? It seems to me that low coolant level > would allow air to be sucked into the return lines to the wp and cause the > wp to loose its prime, thereby shutting down your cooling system. That > could ruin your whole day. > > Mark S. > > > >> Homepage: http://www.flyrotary.com/ > >> Archive: http://lancaironline.net/lists/flyrotary/List.html >