Return-Path: Sender: (Marvin Kaye) To: flyrotary Date: Sun, 18 May 2003 01:17:59 -0400 Message-ID: X-Original-Return-Path: Received: from BAY0-SMTP11.adinternal.hotmail.com ([65.54.241.118] verified) by logan.com (CommuniGate Pro SMTP 4.1b6) with ESMTP id 2351995 for flyrotary@lancaironline.net; Sat, 17 May 2003 01:08:39 -0400 X-Originating-IP: [68.7.218.110] X-Originating-Email: [alventures@msn.com] Received: from BigAl ([68.7.218.110]) by BAY0-SMTP11.adinternal.hotmail.com with Microsoft SMTPSVC(5.0.2195.5600); Fri, 16 May 2003 22:08:39 -0700 Reply-To: From: "Al Gietzen" X-Original-To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: coolant / thermostat X-Original-Date: Fri, 16 May 2003 22:08:48 -0700 Organization: ALVentures X-Original-Message-ID: <004501c31c32$69793700$6400a8c0@BigAl> MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="----=_NextPart_000_0046_01C31BF7.BD1A5F00" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.4024 Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 In-Reply-To: X-Original-Return-Path: alventures@email.msn.com X-OriginalArrivalTime: 17 May 2003 05:08:39.0217 (UTC) FILETIME=[60A98210:01C31C32] This is a multi-part message in MIME format. ------=_NextPart_000_0046_01C31BF7.BD1A5F00 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Thanks in advance for any thermostat advice. I was just about to install the thing, but maybe I'll hold off a couple days. Cheers, Rusty Rusty, you can plug the hole with the water pump housing on the engine. You will need a 1/2" NPT tap (if memory serves me right) and I find a socket that will hold the squared end of the tap. Then using an socket extension I can put the tap into the hold and cut the threads for a plug. Suggest suffing some cotton with vasaline coating or other means of trapping the metal chips below the hole you are tapping. Then flushing it good with a hose. I tried a thermostat twice and could not get it to cool properly on the ground in either case, so gave up and have flow 200 hours with no thermostat and no problem. For those of you not also participating on the "other" list; attached is the flow data measured during my 20B dyno run with (full open) and without the thermostat. Considerably higher flow without. Higher flow = better cooling. However; some means of controlling temp and speeding the warmup is generally necessary. Either control air flow, or, if you have two radiators like I do, consider an in-line thermostat for one of the rads. 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