X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from [66.219.56.245] (HELO mail.qnsi.net) by logan.com (CommuniGate Pro SMTP 6.0c1) with ESMTP id 5729589 for flyrotary@lancaironline.net; Sun, 26 Aug 2012 14:14:21 -0400 Received-SPF: none receiver=logan.com; client-ip=66.219.56.245; envelope-from=bhughes@qnsi.net Received: from 10.0.0.5 ([10.0.0.5]) by qnsi-mail.qnsi.net ([10.0.0.5]) with Microsoft Exchange Server HTTP-DAV ; Sun, 26 Aug 2012 18:13:46 +0000 Subject: Re: [FlyRotary] Oil pressure again References: From: "Bobby J. Hughes" Content-Type: text/plain; charset="us-ascii" In-Reply-To: Message-ID: <6386F479-C24F-4BB4-93C3-89313BF8F1F3@qnsi.net> Date: Sun, 26 Aug 2012 13:13:45 -0500 To: "Rotary motors in aircraft" Content-Transfer-Encoding: quoted-printable thread-topic: [FlyRotary] Oil pressure again thread-index: Ac2DtoiLJa4eWXrCTNmybiTSLXwnvA== MIME-Version: 1.0 (1.0) Chris How much has it dropped? Could it be the sensor? I had one fail early in pha= se 1. Every time I pitched up the pressure would drop and trigger an alarm.=20= Bobby Sent from my iPad On Aug 26, 2012, at 9:11 AM, "Chris Barber" wrot= e: > My oil pressure has dropped again. I am jumping to the conclusion it is th= at pesky front cover O-ring. I know I was meticulous with installing it last= time. While it may be something else, I doubt it. I had the pressure valve f= all into the pan a couple of years ago and it is now safety wired in. Perhap= s it is the oil pump but it seems so simple and not prone to failure.=20 >=20 > So, to make this more than a vent, as I know mostly how to address this...= .contrary to the evidence that I am having to screw with it again, is there a= ny words of wisdom y'all would care to share. Since I will at least have the= front cover off (should be able to do do with engine on the plane) would th= is be a good time to replace the oil pump. It has not been replaced in the p= ast do it is many years old with an unknown number of miles. Is there a "bet= ter" oil pump out there than the turbo version offered by Mazdatrix that I s= hould ponder? >=20 > I may have the oil ring and plastic retaining ring already if I can find t= hem. Just gotta find the time to crack into it. Then to continue my turbo d= iagnosis. Great power without intercooler (even though I found no restrictio= n, but it is a super cheap intercooler from eBay) and blow off valve or even= N/A. Obvious limited breathing with the cheap intercooler and blow off valv= e >=20 > TIA.=20 >=20 > Chris Barber > Houston >=20 > Sent from my iPhone 4 > -- > Homepage: http://www.flyrotary.com/ > Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List= .html