Return-Path: <13brv3@bellsouth.net> Received: from imf18aec.mail.bellsouth.net ([205.152.59.66] verified) by logan.com (CommuniGate Pro SMTP 4.1.3) with ESMTP id 2566390 for flyrotary@lancaironline.net; Wed, 03 Sep 2003 18:21:11 -0400 Received: from rad ([68.212.14.21]) by imf18aec.mail.bellsouth.net (InterMail vM.5.01.05.27 201-253-122-126-127-20021220) with ESMTP id <20030903222111.IUPC13779.imf18aec.mail.bellsouth.net@rad> for ; Wed, 3 Sep 2003 18:21:11 -0400 From: "Russell Duffy" <13brv3@bellsouth.net> To: "Flyrotary List" Subject: water flow (the quiz) Date: Wed, 3 Sep 2003 17:21:10 -0500 Message-ID: <007a01c37269$adccd280$0201a8c0@rad> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_007B_01C3723F.C4F6CA80" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.4510 Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1165 This is a multi-part message in MIME format. ------=_NextPart_000_007B_01C3723F.C4F6CA80 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Greetings again, =20 In the previous post, I labeled the ports on my radiator, and now I'm confusing myself :-) =20 When I was talking to Bruce about my oil temp issues, he suggested that = I run the (currently plugged) heater output into the radiator inlet to = produce some more coolant flow through the radiator. This would be in an effort = to increase the efficiency of the oil/water heat exchangers when the = thermostat is closed, and there's little water flow. If I prove that I need to = lower my temps, I'll try this. Certainly, water will actually flow from the heater port to the radiator inlet tank, because Bruce said Mazda used to = do this with the 1st gen oil/water heat exchangers.=20 =20 Since water will flow from the engine to the radiator inlet tank, why do they return the heater itself to the radiator outlet side. This is also true for the AST, and turbo as far as I can tell. I certainly plumbed = my AST and turbo returns back to the radiator outlet tank, so in effect, = they bypass the radiator. The volume of water is small, so it's probably not = a big deal, but it just seems odd that they wouldn't return all the water = to the same place. I initially thought that maybe they made an exception = for the oil/water heat exchanger return, since it would be picking up heat, = and they'd want to pass that through the radiator. Of course you'd think = the same would be true of the turbo water return. =20 =20 I'm not sure there's really a question here, but if it happens to make = sense to anyone, let me know. =20 As for the oil temp saga, I should have an oil temp reading into the = engine by this weekend. =20 =20 Thanks, Rusty (waiting for oil temp sensor supplies) =20 =20 ------=_NextPart_000_007B_01C3723F.C4F6CA80 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message
Greetings=20 again,
 
In the previous = post, I=20 labeled the ports on my radiator, and now I'm confusing myself=20 :-)
 
When I was = talking to Bruce=20 about my oil temp issues, he suggested that I run the (currently = plugged) heater=20 output into the radiator inlet to produce some more coolant flow through = the=20 radiator.  This would be in an effort to increase the efficiency of = the=20 oil/water heat exchangers when the thermostat is closed, and there's = little=20 water flow.  If I prove that I need to lower my temps, I'll try = this. =20 Certainly, water=20 will actually flow from the heater port to the radiator inlet tank, = because=20 Bruce said Mazda used to do this with the 1st gen oil/water heat=20 exchangers. 
 
Since water = will flow from=20 the engine to the radiator inlet tank, why do they return the heater = itself to=20 the radiator outlet side.  This is also true for the AST, and turbo = as far=20 as I can tell.  I certainly plumbed my AST and turbo returns = back to=20 the radiator outlet tank, so in effect, they bypass the radiator.  = The=20 volume of water is small, so it's probably not a big deal, but it just = seems odd=20 that they wouldn't return all the water to the same place.  I = initially=20 thought that maybe they made an exception for the oil/water heat = exchanger=20 return, since it would be picking up heat, and they'd want to pass that = through=20 the radiator.  Of course you'd think the same would be=20 true of the turbo water = return.  
 
I'm not sure = there's really=20 a question here, but if it happens to make sense to anyone, let me=20 know.
 
As for the oil = temp saga, I=20 should have an oil temp reading into the engine by this = weekend. =20  
 
Thanks,
Rusty (waiting for oil=20 temp sensor supplies)
 
  
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