X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from rv-out-0910.google.com ([209.85.198.191] verified) by logan.com (CommuniGate Pro SMTP 5.1.11) with ESMTP id 2253755 for flyrotary@lancaironline.net; Fri, 10 Aug 2007 00:23:53 -0400 Received-SPF: pass receiver=logan.com; client-ip=209.85.198.191; envelope-from=wdleonard@gmail.com Received: by rv-out-0910.google.com with SMTP id c27so522634rvf for ; Thu, 09 Aug 2007 21:23:14 -0700 (PDT) DKIM-Signature: a=rsa-sha1; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:message-id:date:from:to:subject:in-reply-to:mime-version:content-type:references; b=B8gFILhCUaW+QxasKNxNesLcUxcslj93TftqE0KkXa++cxnbjAX+XVS/wzVzZLHcBeL6fwi4qHdMFkd9ROVBkSjMpRPhAkG8E0BWrOeREmYxo+v9txni0063Oe+ZeG2MQv/KaF4xh+0IsgxPmQ5pWrIn33mfx9Ep9mWp6Zq7b7A= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:to:subject:in-reply-to:mime-version:content-type:references; b=IpTjQ4oBYXEAMg5A+qRFy9Nd+gZfGcxP4VmUsZBRpIEnkSnNygacs/N1jXtBp8jfTuqMdqIxAVnGVas4HW2kL22+3tkjOYltfN09rg+eGJfwVM9KZis5t3sdHsEza5rttlnBfJNm6UmOeujm+ebMuJREM2JtBZmcnbk50hNewKY= Received: by 10.143.165.13 with SMTP id s13mr495151wfo.1186719794239; Thu, 09 Aug 2007 21:23:14 -0700 (PDT) Received: by 10.142.254.16 with HTTP; Thu, 9 Aug 2007 21:23:14 -0700 (PDT) Message-ID: <1c23473f0708092123h63d8b821y54f8dfd547783556@mail.gmail.com> Date: Thu, 9 Aug 2007 21:23:14 -0700 From: "David Leonard" To: "Rotary motors in aircraft" Subject: Re: [FlyRotary] Re: Engine oil outlet modification In-Reply-To: MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_Part_14606_32377932.1186719794213" References: ------=_Part_14606_32377932.1186719794213 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline Dennis, I agree with AL. My oil cooling is more than adequate. Unless you are making serious h.p. the limitation is not going to be oil flow. Dave Leonard On 8/9/07, Al Gietzen wrote: > > Dennis; > > It is only going to make a difference if the cooling is limited by the oil > flow, and not the air flow. I did not make the mod, and the oil flow is > more than adequate. I would make the change only if you found that the > oil > temperature drop across the cooler was more than about 40 degrees, and the > oil cooling was not adequate - or, I suppose, if you just felt like doing > it. In my case I see about a 20 degree drop, but then I know my oil > cooling > is limited by the air flow. > > Al > > -----Original Message----- > From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On > Behalf Of Dennis Haverlah > Sent: Thursday, August 09, 2007 3:48 PM > To: Rotary motors in aircraft > Subject: [FlyRotary] Engine oil outlet modification > > I have been told that if I reroute my oil system by tapping into the > front oil galley and eliminating the 2 - 90 deg. turns the oil makes > going to the front housing I could achieve a 10 + deg drop in oil temp. > due to higher oil flow and less friction. This mod. involves tapping > into the oil galley on the the side-iron that has the oil pump mounted > on it. > I am ready to try try this in the next few days. Mark Steitle had > modified his 20 B but does not have any test data on how well it worked. > > Does anyone have experience with oil temperatures before and after the > modification? > > > Thanks, > Dennis H. > > > -- > Homepage: http://www.flyrotary.com/ > Archive and UnSub: > http://mail.lancaironline.net:81/lists/flyrotary/List.html > > > -- > Homepage: http://www.flyrotary.com/ > Archive and UnSub: > http://mail.lancaironline.net:81/lists/flyrotary/List.html > -- David Leonard Turbo Rotary RV-6 N4VY http://N4VY.RotaryRoster.net http://RotaryRoster.net ------=_Part_14606_32377932.1186719794213 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline
Dennis, I agree with AL.
 
My oil cooling is more than adequate.  Unless you are making serious h.p. the limitation is not going to be oil flow.
 
Dave Leonard

 
On 8/9/07, Al Gietzen <ALVentures@cox.net> wrote:
Dennis;

It is only going to make a difference if the cooling is limited by the oil
flow, and not the air flow.  I did not make the mod, and the oil flow is
more than adequate.  I would make the change only if you found that the oil
temperature drop across the cooler was more than about 40 degrees, and the
oil cooling was not adequate - or, I suppose, if you just felt like doing
it.  In my case I see about a 20 degree drop, but then I know my oil cooling
is limited by the air flow.

Al

-----Original Message-----
From: Rotary motors in aircraft [mailto: flyrotary@lancaironline.net] On
Behalf Of Dennis Haverlah
Sent: Thursday, August 09, 2007 3:48 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Engine oil outlet modification

I have been told that if I reroute my oil system by tapping into the
front oil galley and eliminating the 2 - 90 deg. turns the oil makes
going to the front housing I could achieve a 10 + deg drop in oil temp.
due to higher oil flow and less friction.  This mod. involves tapping
into the oil galley on the the side-iron that has the oil pump mounted
on it.
I am ready to try try this in the next few days.  Mark Steitle had
modified his 20 B but does not have any test data on how well it worked.

Does anyone have experience with oil temperatures before and after the
modification?


Thanks,
Dennis H.


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Archive and UnSub:
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Homepage:   http://www.flyrotary.com/
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--
David Leonard

Turbo Rotary RV-6 N4VY
http://N4VY.RotaryRoster.net
http://RotaryRoster.net ------=_Part_14606_32377932.1186719794213--