X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from fed1rmmtao103.cox.net ([68.230.241.43] verified) by logan.com (CommuniGate Pro SMTP 5.2.0) with ESMTP id 2792980 for flyrotary@lancaironline.net; Sat, 15 Mar 2008 10:39:08 -0400 Received-SPF: none receiver=logan.com; client-ip=68.230.241.43; envelope-from=alventures@cox.net Received: from fed1rmimpo02.cox.net ([70.169.32.72]) by fed1rmmtao103.cox.net (InterMail vM.7.08.02.01 201-2186-121-102-20070209) with ESMTP id <20080315143827.JURR17042.fed1rmmtao103.cox.net@fed1rmimpo02.cox.net> for ; Sat, 15 Mar 2008 10:38:27 -0400 Received: from BigAl ([72.192.137.74]) by fed1rmimpo02.cox.net with bizsmtp id 1Seb1Z0071cVYgg0000000; Sat, 15 Mar 2008 10:38:35 -0400 From: "Al Gietzen" To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: Oil temps, O-rings Date: Sat, 15 Mar 2008 06:40:54 -0800 Message-ID: <000001c886aa$93006ca0$6401a8c0@BigAl> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0001_01C88667.84DD2CA0" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6626 Importance: Normal In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3198 This is a multi-part message in MIME format. ------=_NextPart_000_0001_01C88667.84DD2CA0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Kelly,=20 After reading Al's post, I need to make a clarification on my previous = oil temp information. The 245* temps were after the cooler, at the oil = filter pad, so who knows what they were coming out of the engine.=20 Mark; It's likely that the temps in the pan weren't a lot higher, = because the reason the temps after the cooler were so high is that the cooler = was ineffective - meaning that the temp drop across the cooler was only = 10-15 degrees.=20 Over the last year I've instrumented my oil & water cooling systems so = many different ways that I sometimes get confused as to what I'm reading on = the EFIS & EM-2. Presently, I'm taking oil temp readings after the first oil/air cooler, then after the oil/water exchanger (as the oil enters = the engine). I do this to monitor how well each of the oil coolers are = working. Sorry for the confusion.=20 Tell me more about your oil/coolant exchanger setup. In series or = parallel on each side? Coolant side on return leg after radiator? Typical temps before and after each cooler? Dimensions of the cooler? Thanks, Al =20 ------=_NextPart_000_0001_01C88667.84DD2CA0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Kelly,
After reading Al's post, I need to make a clarification on my previous = oil temp information.  The 245* temps were after the = cooler, at the oil filter pad, so who knows what they were coming out of the engine. 

Mark; It’s likely that the temps in the pan weren’t a lot higher, = because the reason the temps after the cooler were so high is that the cooler = was ineffective – meaning that the temp drop across the cooler was = only 10-15 degrees.

 Over the = last year I've instrumented my oil & water cooling systems so many different = ways that I sometimes get confused as to what I'm reading on the EFIS & EM-2.   Presently, I'm taking oil temp readings after the = first oil/air cooler, then after the oil/water exchanger (as the oil enters = the engine).  I do this to monitor how well each of the oil coolers are working.  Sorry for the confusion.

Tell me more about your oil/coolant exchanger setup.  In series or = parallel on each side?  Coolant side on return leg after radiator? =  Typical temps before and after each cooler?  Dimensions of the = cooler?

Thanks,<= /font>

Al

 

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