X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from imf25aec.mail.bellsouth.net ([205.152.59.73] verified) by logan.com (CommuniGate Pro SMTP 4.3.5) with ESMTP id 1020503 for flyrotary@lancaironline.net; Fri, 24 Jun 2005 13:45:42 -0400 Received-SPF: pass receiver=logan.com; client-ip=205.152.59.73; envelope-from=sladerj@bellsouth.net Received: from ibm69aec.bellsouth.net ([65.8.211.141]) by imf25aec.mail.bellsouth.net with ESMTP id <20050624174456.ZIKF8692.imf25aec.mail.bellsouth.net@ibm69aec.bellsouth.net> for ; Fri, 24 Jun 2005 13:44:56 -0400 Received: from JSLADE ([65.8.211.141]) by ibm69aec.bellsouth.net with ESMTP id <20050624174455.PFYP13045.ibm69aec.bellsouth.net@JSLADE> for ; Fri, 24 Jun 2005 13:44:55 -0400 From: "John Slade" To: "Rotary motors in aircraft" Subject: RE: [FlyRotary] Engine Rebuild - Coolant Leak Cause Date: Fri, 24 Jun 2005 13:44:52 -0400 Message-ID: MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0178_01C578C2.E62A5650" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0) In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1409 Importance: Normal This is a multi-part message in MIME format. ------=_NextPart_000_0178_01C578C2.E62A5650 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit supported by the fact that I had notice my coolant pressure increasing on the flight to Charlies by approx 11/2 psi per hour of flight. It started at a normal 10 psi and had increased to18 psi by the end of the flight. Ed, this paragraph caught my attention. I've been seeing high coolant pressures lately and am wondering what is normal. In two or three hours of ground running and one flight I've noticed that the coolant pressure climbs fairly quickly to around 25PSI or even a little more, and seem to be throttle dependant. I have a 24psi cap, but never see it release any fluid. During the flight I checked while airborne and saw about 10 PSI each time I looked. I haven't lost any coolant or oil. Regards John ------=_NextPart_000_0178_01C578C2.E62A5650 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
 supported by the fact that I had notice my = coolant=20 pressure increasing on the flight to Charlies by approx 11/2 psi per = hour of=20 flight. It started at a normal 10 psi and had increased to18 psi by the = end of=20 the flight.   
 
Ed, this paragraph caught my attention. I've = been=20 seeing high coolant pressures lately and am wondering what is normal. In = two or=20 three hours of ground running and one flight I've noticed that the = coolant=20 pressure climbs fairly quickly to around 25PSI or even a little more, = and seem=20 to be throttle dependant. I have a 24psi cap, but never see it release = any=20 fluid. During the flight I checked while airborne and saw about 10 PSI = each time=20 I looked. I haven't lost any coolant or oil.=20
Regards
John
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