X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from fmailhost05.isp.att.net ([204.127.217.105] verified) by logan.com (CommuniGate Pro SMTP 5.2.16) with ESMTP id 3872942 for flyrotary@lancaironline.net; Fri, 02 Oct 2009 23:36:26 -0400 Received-SPF: none receiver=logan.com; client-ip=204.127.217.105; envelope-from=bbradburry@bellsouth.net Received: from desktop (adsl-157-211-223.mco.bellsouth.net[70.157.211.223]) by isp.att.net (frfwmhc05) with SMTP id <20091003033551H05005lknhe>; Sat, 3 Oct 2009 03:35:51 +0000 X-Originating-IP: [70.157.211.223] From: "Bill Bradburry" To: "'Rotary motors in aircraft'" References: In-Reply-To: Subject: RE: [FlyRotary] Re: Good, bad news...too much oil pressure somewhere Date: Fri, 2 Oct 2009 23:35:58 -0400 Message-ID: <3150305FD3384A638C7D79E83048EC6A@Desktop> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0042_01CA43B9.1A131770" X-Mailer: Microsoft Office Outlook 11 X-MIMEOLE: Produced By Microsoft MimeOLE V6.0.6002.18005 Thread-Index: AcpDy6NDPi6lngx1RS+ztkSEZy8VOAADnVjQ This is a multi-part message in MIME format. ------=_NextPart_000_0042_01CA43B9.1A131770 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Richard, I think the oil filter is supposed to be the last thing before the engine. If so, how could a low flowing oil cooler build pressure to blow the filter? The filter should be after the cooler?? Bill B _____ From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Richard Sohn Sent: Friday, October 02, 2009 9:49 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Good, bad news...too much oil pressure somewhere ----- Original Message ----- From: Al Gietzen To: Rotary motors in aircraft Sent: Friday, October 02, 2009 8:18 PM Subject: [FlyRotary] Re: Good, bad news...too much oil pressure somewhere Almost immediatly I noticed one of my heavy duty Aeroquip oil lines had burst. Hmmmmm, the Oil Pressure reading never went over 75 and was around 35 when idle (as a matter of fact, at idle, it is usualy around 30). I belive these reading to be in the normal ranges. This is strange. What type of hose? If it is the Teflon/braided SS line it should take several hundreds of psi. Is there not a pressure relief valve on the outlet side of the pump that limits the pressure to something like 150 psi? Al G Forgot about that, Al. I did not have the relieve valve when my oifilter blew the gasket. Nevertheless, this should not happen under normal condition. After I fixed the oilcooler problem, it never happened again, and I still do not have a relief valve in the ground testing engine. Richard Sohn N2071U _____ No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.5.409 / Virus Database: 270.14.3/2409 - Release Date: 10/02/09 06:46:00 ------=_NextPart_000_0042_01CA43B9.1A131770 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Richard,

I think the oil filter is supposed to be the last thing before = the engine.  If so, how could a low flowing oil cooler build pressure = to blow the filter?  The filter should be after the = cooler??

Bill B  

 

From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Richard Sohn
Sent: Friday, October 02, = 2009 9:49 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: = Good, bad news...too much oil pressure somewhere

 

----- Original Message ----- =

From: Al = Gietzen

Sent: Friday, = October 02, 2009 8:18 PM

Subject: = [FlyRotary] Re: Good, bad news...too much oil pressure = somewhere

 

Almost immediatly I noticed one of my heavy duty = Aeroquip oil lines had burst.  Hmmmmm, the Oil Pressure reading never went = over 75 and was around 35 when idle (as a matter of fact, at idle, it is usualy around 30).  I belive these reading to be in = the normal ranges.

This is strange.  What type of hose?  If it is the Teflon/braided = SS line it should take several hundreds of psi.  Is there not a pressure = relief valve on the outlet side of the pump that limits the pressure to = something like 150 psi?

Al = G

Forgot about that, Al. I did not have the relieve valve when my oifilter blew = the gasket.

Nevertheless, this should not happen under normal condition. After I fixed the = oilcooler problem, it never happened again, and I still do not have a relief valve = in the ground testing engine.

Richard Sohn
N2071U


No virus found in this incoming message.
Checked by AVG - www.avg.com
Version: 8.5.409 / Virus Database: 270.14.3/2409 - Release Date: = 10/02/09 06:46:00

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