X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from m12.lax.untd.com ([64.136.30.75] verified) by logan.com (CommuniGate Pro SMTP 4.3.5) with SMTP id 1022940 for flyrotary@lancaironline.net; Mon, 27 Jun 2005 07:35:57 -0400 Received-SPF: pass receiver=logan.com; client-ip=64.136.30.75; envelope-from=alwick@juno.com Received: from m12.lax.untd.com (localhost [127.0.0.1]) by m12.lax.untd.com with SMTP id AABBM93C4A7VFUJA for (sender ); Mon, 27 Jun 2005 04:34:50 -0700 (PDT) X-UNTD-OriginStamp: L941HVjjYzDhN3itp//mkPGwvPH9XJqB8ASLJgD027qaVZi/FkkgVA== Received: (from alwick@juno.com) by m12.lax.untd.com (jqueuemail) id KWHF932L; Mon, 27 Jun 2005 04:34:07 PDT To: flyrotary@lancaironline.net Date: Mon, 27 Jun 2005 03:34:16 -0700 Subject: Re: [FlyRotary] Re: Coolant Leak Message-ID: <20050627.043353.2556.2.alwick@juno.com> X-Mailer: Juno 5.0.33 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary=--__JNP_000_28b7.08bd.4bf2 X-Juno-Line-Breaks: 8-6,10-13,15-16,23-26,29-39,40-32767 From: al p wick X-ContentStamp: 28:14:3106177199 X-MAIL-INFO:508d8d49bd41a53c1de199493999816979084599d5a1256cbdd54508d505d5002d2819fc8d7d496d4965bd2981dcb8293c413528e5cc4c49cd2881b9ad5cadcda8d5355c385dd19d38 X-UNTD-Peer-Info: 127.0.0.1|localhost|m12.lax.untd.com|alwick@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_28b7.08bd.4bf2 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 8bit Thanks so much Al G, you too Georges. I was not familiar with that type of system. That also seems to support some of Ians statements. I'll head to Volvo area next time I go to wrecking yard. That's why I couldn't understand Georges statement. -al wick On Sun, 26 Jun 2005 22:27:10 -0700 "Al Gietzen" writes: I'm sorry Georges, I don't understand your statement. All auto cooling sys I'm familiar with have rad cap on top of radiator. They are designed to have no air in the cooling system. Shortly after you start up the car, coolant flows from cap 14psi valve to overflow bottle. This pressure increase is entirely due to coolant expansion due to heat. When you shut car off, the pressure drop in the radiator draws in coolant from cap 1 psi valve connected to overflow bottle back into the radiator. Thus the radiator is always full to top. Al W. Mercedes, Volkswagon, Volvo (to name a few) have/had radiators with no cap, connected to an expansion tank that you fill about half way. The expansion tank – higher than the top of the rad - has the 13-15 psi cap. FWIW; Al G. -al wick Artificial intelligence in cockpit, Cozy IV powered by stock Subaru 2.5 N9032U 200+ hours on engine/airframe from Portland, Oregon Prop construct, Subaru install, Risk assessment, Glass panel design info: http://www.maddyhome.com/canardpages/pages/alwick/index.html ----__JNP_000_28b7.08bd.4bf2 Content-Type: text/html; charset=us-ascii Content-Transfer-Encoding: quoted-printable

Thanks so much Al G, you too Georges. I was not familiar with that = type of=20 system. That also seems to support some of Ians statements. I'll head to = Volvo=20 area next time I go to wrecking yard. That's why I couldn't understand = Georges=20 statement.

-al wick

On Sun, 26 Jun 2005 22:27:10 -0700 "Al Gietzen" <ALVentures@cox.net> writes:

I'm sorry Georges, I don't= =20 understand your statement.

All auto cooling sys I'm = familiar=20 with have rad cap on top of radiator. They are designed to have no air in= the=20 cooling system. Shortly after you start up the car, coolant = flows=20 from cap 14psi valve to overflow bottle. This pressure increase is=20 entirely due to coolant expansion due to heat. When you shut car off, the= =20 pressure drop in the radiator draws in coolant from cap 1 psi valve= =20 connected to overflow bottle back into the radiator. Thus the = radiator=20 is always full to top.

Al=20 W.

Mercedes,=20 Volkswagon, Volvo (to name a few) have/had radiators with no cap, = connected to=20 an expansion tank that you fill about half way. The expansion tank = –=20 higher than the top of the rad - has the 13-15 psi=20 cap.

FWIW;=

Al=20 G.

-al wick
Artificial intelligence in= =20 cockpit, Cozy IV powered by stock Subaru 2.5
N9032U 200+ hours on=20 engine/airframe from Portland, Oregon
Prop construct, Subaru install, = Risk=20 assessment, Glass panel design=20 info:
http://www.maddyhome.com/canardpages/pages/alwick/index.html
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