Return-Path: <13brv3@bellsouth.net> Received: from imf17aec.mail.bellsouth.net ([205.152.59.65] verified) by logan.com (CommuniGate Pro SMTP 4.1.5) with ESMTP id 2645250 for flyrotary@lancaironline.net; Tue, 21 Oct 2003 11:22:49 -0400 Received: from rad ([65.80.160.144]) by imf17aec.mail.bellsouth.net (InterMail vM.5.01.05.27 201-253-122-126-127-20021220) with ESMTP id <20031021152248.KWYC1816.imf17aec.mail.bellsouth.net@rad> for ; Tue, 21 Oct 2003 11:22:48 -0400 From: "Russell Duffy" <13brv3@bellsouth.net> To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: temps behind radiator? Date: Tue, 21 Oct 2003 10:22:51 -0500 Message-ID: <009601c397e7$315b4350$6001a8c0@rad> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0097_01C397BD.48853B50" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.4510 Importance: Normal In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1165 This is a multi-part message in MIME format. ------=_NextPart_000_0097_01C397BD.48853B50 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit It sounds like Rusty wants to keep his oil temps below 180 F. I,ve heard that oil temps should be above 212 F so that water, from condensation, will boil out of the oil during normal ops. As I've recently learned myself, the accepted maximum oil temp going into the engine is 210 F. Temps above this point can harm the engine far more than a little moisture. The idea of a two inch pipe was mentioned and then someone said that the pump is built with a 1-1/4 in. outlet. Is there an easy way to handle the change of head pressure and still not get cavatation when changing the outlet size ? I believe the pump comes with 1.25" inlet and outlet, but also is supplied with sleeves to fit over the outlet to increase the OD for larger hose sizes. It doesn't sound like they're worried about the size change. Rusty ------=_NextPart_000_0097_01C397BD.48853B50 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message

        It sounds = like Rusty=20 wants to keep his oil temps
below 180 F. I,ve heard that oil temps = should be=20 above
212 F so that water, from condensation, will boil out of
the = oil=20 during normal ops.

As I've = recently learned=20 myself, the accepted maximum oil temp going into the engine is 210 = F. =20 Temps above this point can harm the engine far more than a little=20 moisture. 

        The idea of a two inch = pipe was=20 mentioned and
then someone said that the pump is built with a 1-1/4=20 in.
outlet. Is there an easy way to handle the change of = head
pressure and=20 still not get cavatation when changing the
outlet size ?

I believe the pump comes = with 1.25"=20 inlet and outlet, but also is supplied with sleeves to fit over the = outlet=20 to increase the OD for larger hose sizes.  It doesn't sound like = they're=20 worried about the size change. 

Rusty

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