X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from fed1rmmtao06.cox.net ([68.230.241.33] verified) by logan.com (CommuniGate Pro SMTP 4.3.4) with ESMTP id 989367 for flyrotary@lancaironline.net; Wed, 08 Jun 2005 21:06:08 -0400 Received-SPF: none receiver=logan.com; client-ip=68.230.241.33; envelope-from=ALVentures@cox.net Received: from BigAl ([68.7.14.39]) by fed1rmmtao06.cox.net (InterMail vM.6.01.04.00 201-2131-118-20041027) with ESMTP id <20050609010522.FELU19494.fed1rmmtao06.cox.net@BigAl> for ; Wed, 8 Jun 2005 21:05:22 -0400 From: "Al Gietzen" To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: coolant leak Date: Wed, 8 Jun 2005 18:05:23 -0700 Message-ID: <00da01c56c8f$50c5f180$6400a8c0@BigAl> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_00DB_01C56C54.A4698A80" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6626 Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 In-Reply-To: This is a multi-part message in MIME format. ------=_NextPart_000_00DB_01C56C54.A4698A80 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Some of the coolant is going to vaporize. This pressurises the system. Some of that vapor will never go back into solution so there should be pressure in the system even when cold. Dave; this may be the weak link in your logic chain. Why would some of the vapor not re-condense? I hope there is some other reason for the pressure. I'd hate for you to have to tear open the engine. Al Gietzen ------=_NextPart_000_00DB_01C56C54.A4698A80 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Some of the coolant is going to = vaporize. This pressurises the system. Some of that vapor will never go back into solution so there should be pressure in the system even when cold. =

Dave; this may be the weak link = in your logic chain. Why would some of the vapor not re-condense? I = hope there is some other reason for the pressure. I’d hate for = you to have to tear open the engine.

Al Gietzen

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