X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from m15.nyc.untd.com ([64.136.22.78] verified) by logan.com (CommuniGate Pro SMTP 4.3.4) with SMTP id 989445 for flyrotary@lancaironline.net; Wed, 08 Jun 2005 22:35:10 -0400 Received-SPF: pass receiver=logan.com; client-ip=64.136.22.78; envelope-from=jbker@juno.com Received: from m15.nyc.untd.com (localhost [127.0.0.1]) by m15.nyc.untd.com with SMTP id AABBLRLXBAX43XH2 for (sender ); Wed, 8 Jun 2005 19:34:09 -0700 (PDT) X-UNTD-OriginStamp: Y+Mfppm2QyGfnY/dq+iW1RkpwlkgF2t0sitalEPn/hfX/YtR5fbl6Q== Received: (from jbker@juno.com) by m15.nyc.untd.com (jqueuemail) id KUZ56L86; Wed, 08 Jun 2005 19:33:10 PDT To: flyrotary@lancaironline.net Date: Wed, 8 Jun 2005 22:31:57 -0400 Subject: Re: [FlyRotary] Re: coolant leak Message-ID: <20050608.223158.1484.12.JBKER@juno.com> X-Mailer: Juno 5.0.33 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary=--__JNP_000_6d1e.7160.5145 X-Juno-Line-Breaks: 8-6,7-11,16-18,22-32767 From: WALTER B KERR X-ContentStamp: 18:9:194446994 X-MAIL-INFO:364025e1099984a5a1d40dd5cd4484e9d17db9 X-UNTD-Peer-Info: 127.0.0.1|localhost|m15.nyc.untd.com|jbker@juno.com This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ----__JNP_000_6d1e.7160.5145 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit On Wed, 8 Jun 2005 19:05:25 -0700 al p wick writes: After you shut off your engine, the 7 psi gradually drops over the next few minutes. It only takes around 12 minutes for the system to develop a vacuum relative to atmosphere. At that point the little valve in the radiator cap opens and allows fluid or air to flow into system. (Check out your rad cap, can you find both valves?) --------------------------------------------- Al, if your cap is a 24 psi cap which you said you could run with full bottle. Why does it develop a vacum on cool down. I have never noticed this on my system, but on the other hand probably never looked at it 12 minutes after shutdown ----__JNP_000_6d1e.7160.5145 Content-Type: text/html; charset=us-ascii Content-Transfer-Encoding: quoted-printable

On Wed, 8 Jun 2005 19:05:25 -0700 al p wick <alwick@juno.com> writes:

After you shut off your engine, the 7 psi gradually drops over = the=20 next few minutes. It only takes around 12 minutes for the system to = develop a=20 vacuum relative to atmosphere. At that point the little valve in the = radiator=20 cap opens and allows fluid or air to flow into system. (Check out your = rad=20 cap, can you find both valves?)

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Al, if your cap is a 24 psi cap which you said you could run with = full=20 bottle. Why does it develop a vacum on cool down. I have never noticed = this on=20 my system, but on the other hand probably never looked at it 12 minutes = after=20 shutdown

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