X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from cdptpa-omtalb.mail.rr.com ([75.180.132.120] verified) by logan.com (CommuniGate Pro SMTP 5.2c4) with ESMTP id 2694275 for flyrotary@lancaironline.net; Sat, 26 Jan 2008 07:47:53 -0500 Received-SPF: pass receiver=logan.com; client-ip=75.180.132.120; envelope-from=eanderson@carolina.rr.com Received: from edward2 ([24.74.103.61]) by cdptpa-omta05.mail.rr.com with SMTP id <20080126124713.JGVX9785.cdptpa-omta05.mail.rr.com@edward2> for ; Sat, 26 Jan 2008 12:47:13 +0000 Message-ID: <000901c86019$964b8640$2402a8c0@edward2> From: "Ed Anderson" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Water Return in Radiator Date: Sat, 26 Jan 2008 07:47:18 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0006_01C85FEF.AD222E20" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.3138 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3138 This is a multi-part message in MIME format. ------=_NextPart_000_0006_01C85FEF.AD222E20 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Doug, if you bring your heater return to the hot water side of your = radiator you are returning it to a high pressure region. This is after = the water pump and before the resistance of the radiator - therefore the = pressure is going to be higher - not a good place (in my opinion) to = return your heater hose. Better is to return if after the = radiator/before the pump inlet. Just my opinion, others may differ. Ed ----- Original Message -----=20 From: dlomheim@aol.com=20 To: Rotary motors in aircraft=20 Sent: Saturday, January 26, 2008 7:03 AM Subject: [FlyRotary] Water Return in Radiator I need to add some water returns to my cooling system and want to make = sure this will work before drilling holes in my Griffin radiator. I = need to return water from my heater core and Fluidyne heat exchanger to = the suction side of the water pump. My plan is to drill a couple of = holes in the end of my radiator and weld on a couple of AN / NPT = fittings to attach the hoses to. =20 From what I have read and seen in the past, the heater core return on = the car goes right up into the neck of the water pump housing. I am not = a systems expert on this, but my simple brain sees no reason why I = shouldn't be able to bring both these returns to the side where the hot = engine water enters my radiator. This will will allow them to pass = through the radiator for some cooling prior to entering the pump housing = and cycling through the system again. Since Mazda didn't configure = their system like this, it does leave me wondering if it will work = okay... Thanks for any information... Doug Lomheim, RV-9A; 13B (Leaving Key West today for home and more fun on my 13B FWF!) -------------------------------------------------------------------------= ----- More new features than ever. Check out the new AOL Mail! ------=_NextPart_000_0006_01C85FEF.AD222E20 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Doug, if you bring your heater return to the hot = water=20 side of your radiator you are returning it to a high pressure = region.  This=20 is after the water pump and before the resistance of the radiator - = therefore=20 the pressure is going to be higher - not a good place (in my opinion) to = return=20 your heater hose.  Better is to return if after the radiator/before = the=20 pump inlet.  Just my opinion, others may differ.
 
Ed
----- Original Message -----
From:=20 dlomheim@aol.com=20
Sent: Saturday, January 26, = 2008 7:03=20 AM
Subject: [FlyRotary] Water = Return in=20 Radiator

I need to add some water returns to my cooling system = and want=20 to make sure this will work before drilling holes in my Griffin=20 radiator.  I need to return water from my heater core = and Fluidyne=20 heat exchanger to the suction side of the water pump.  My = plan is to=20 drill a couple of holes in the end of my radiator and weld on a couple = of AN /=20 NPT fittings to attach the hoses to. 

From what I have = read and=20 seen in the past, the heater core return on the car goes right up into = the=20 neck of the water pump housing.  I am not a systems expert on = this, but=20 my simple brain sees no reason why I shouldn't be able to bring both = these=20 returns to the side where the hot engine water enters my = radiator. =20 This will will allow them to pass through the radiator for some = cooling prior=20 to entering the pump housing and cycling through the system = again.  Since=20 Mazda didn't configure their system like this, it does leave me = wondering=20 if it will work okay...

Thanks for any = information...

Doug=20 Lomheim, RV-9A; 13B
(Leaving Key West today for home and more fun = on my 13B=20 FWF!)
More new features than ever. Check out the new AOL Mail!
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