X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from zproxy.gmail.com ([64.233.162.200] verified) by logan.com (CommuniGate Pro SMTP 4.3.4) with ESMTP id 989000 for flyrotary@lancaironline.net; Wed, 08 Jun 2005 17:05:27 -0400 Received-SPF: pass receiver=logan.com; client-ip=64.233.162.200; envelope-from=wdleonard@gmail.com Received: by zproxy.gmail.com with SMTP id 34so358550nzf for ; Wed, 08 Jun 2005 14:04:42 -0700 (PDT) DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:reply-to:to:subject:in-reply-to:mime-version:content-type:references; b=heHuwe9DRihKTHcRmhCoeJsOP8Y2unGYoTrjgJKc7EfRW4CxyWuBTlidjUcfQOEue7ZXEoTqY6KMKK4dehZRU65a2l4Tnvl0LtGWo2VLJe1hcTJmNyYUOKJrkt5IqHVYE6DyZCBz8ltjEK20u0izFm6kGRaR1aI5wBIrYVpZj90= Received: by 10.36.20.17 with SMTP id 17mr893719nzt; Wed, 08 Jun 2005 14:04:42 -0700 (PDT) Received: by 10.36.9.4 with HTTP; Wed, 8 Jun 2005 14:04:41 -0700 (PDT) Message-ID: <1c23473f05060814045cc5e9dd@mail.gmail.com> Date: Wed, 8 Jun 2005 14:04:41 -0700 From: David Leonard Reply-To: David Leonard To: Rotary motors in aircraft Subject: Re: [FlyRotary] Re: coolant leak In-Reply-To: Mime-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_Part_4353_27699419.1118264681986" References: ------=_Part_4353_27699419.1118264681986 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Content-Disposition: inline On 6/8/05, Tracy Crook wrote:=20 >=20 > There was a ton of warning signs of Ed's coolant sealing problems. A=20 > biggie was pressure in the system after the engine cooled completely down= =20 > (like next day) The picture on my website (it's a boy!) shows the clue.= =20 > There were other signs as well but it is human nature to hope that it was= =20 > not the worst case possibility (Coolant O-ring problem). But don't jump t= o=20 > conclusions yet, we still don't know what it was. > Tracy (BMW had bad crank sensor >=20 I don't get it. What is wrong with the cooling system remaining=20 pressurized? Mine does and always has.=20 Some of the coolant is going to vaporize. This pressurises the system. Som= e=20 of that vapor will never go back into solution so there should be pressure= =20 in the system even when cold. In fact. A lack of pressure in the system a= =20 day after shut down indicates that there is a leak. The fact that it as abl= e=20 to remain pressurized says that it is not leaking out anywhere or else the= =20 pressure would fall. --=20 Dave Leonard Turbo Rotary RV-6 N4VY http://members.aol.com/_ht_a/rotaryroster/index.html http://members.aol.com/vp4skydoc/index.html ------=_Part_4353_27699419.1118264681986 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Content-Disposition: inline

On 6/8/05, T= racy Crook <lors01@msn.com>= wrote:
There was a ton of warning signs of Ed's coolant sealing problems.&nbs= p; A biggie was pressure in the system after the engine cooled completely d= own (like next day) The picture on my website (it's a boy!) shows the clue.=   There were other signs as well but it is human nature to hope that i= t was not the worst case possibility (Coolant O-ring problem).   = But don't jump to conclusions yet, we still don't know what it was.
 
Tracy (BMW had bad crank sensor
 
I don't get it.  What is wrong with the cooling system remaining = pressurized?  Mine does and always has. 
 
Some of the coolant is going to vaporize.  This pressurises the s= ystem.  Some of that vapor will never go back into solution so there s= hould be pressure in the system even when cold.  In fact.  A lack= of pressure in the system a day after shut down indicates that there is a = leak.  The fact that it as able to remain pressurized says that it is = not leaking out anywhere or else the pressure would fall.
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