Return-Path: Received: from [199.185.220.223] (HELO priv-edtnes51.telusplanet.net) by logan.com (CommuniGate Pro SMTP 4.2.8) with ESMTP id 659855 for flyrotary@lancaironline.net; Sat, 05 Feb 2005 01:01:52 -0500 Received-SPF: pass receiver=logan.com; client-ip=199.185.220.223; envelope-from=haywire@telus.net Received: from Endurance ([207.81.25.155]) by priv-edtnes51.telusplanet.net (InterMail vM.6.01.04.00 201-2131-118-20041027) with SMTP id <20050205060119.VMJK11014.priv-edtnes51.telusplanet.net@Endurance> for ; Fri, 4 Feb 2005 23:01:19 -0700 From: "Todd Bartrim" To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: Cool Collar oil filter cooler Date: Fri, 4 Feb 2005 22:01:05 -0800 Message-ID: <004001c50b48$1529a9d0$0201a8c0@Endurance> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0041_01C50B05.070669D0" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook CWS, Build 9.0.2416 (9.0.2910.0) X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 Importance: Normal In-Reply-To: This is a multi-part message in MIME format. ------=_NextPart_000_0041_01C50B05.070669D0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit I have my doubts as to their effectiveness as well, but for the cost it's worth trying. However I feel that the weak link in the heat transfer chain is the steel oil filter. Removal of the paint will help, but the thermal conductivity of steel is far less than that of aluminium. I've seen this when I switched from using an aluminium fuel rail to a steel fuel rail. Due to the close proximity to the turbocharger I was picking up allot of heat as the excess fuel was recirced. I made a few other changes as well, but I feel that had a large effect. Now if we could find aluminium oil filters to use with this Cool Collar we might see a small result. Todd (going to wait for Paul's report before I buy) I'm gonna go with Al, and say that it won't do much (unless, it comes off like Rusty said 8*( But some things you might try to make it better: 1)Strip the paint off the oil filter. For its thickness, that paint will do an amazing job of insulating between the two material. ------=_NextPart_000_0041_01C50B05.070669D0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

I have my doubts as to = their=20 effectiveness as well, but for the cost it's worth trying. However I = feel that=20 the weak link in the heat transfer chain is the steel oil filter. = Removal of the=20 paint will help, but the thermal conductivity of steel is far less than = that of=20 aluminium. I've seen this when I switched from using an aluminium fuel = rail to a=20 steel fuel rail. Due to the close proximity to the turbocharger I was = picking up=20 allot of heat as the excess fuel was recirced. I made a few other = changes as=20 well, but I feel that had a large effect. Now if we could find aluminium = oil=20 filters to use with this Cool Collar we might see a small = result.

Todd=20 (going to wait for Paul's report before I buy)

 I'm = gonna go=20 with Al, and say that it won't do much (unless, it comes
off like = Rusty said=20 8*(    But some things you might try to make it=20 better:

1)Strip the paint off the oil filter.  For its = thickness,=20 that paint
will do an amazing job of insulating between the two=20 material.

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