X-Virus-Scanned: clean according to Sophos on Logan.com From: "Charlie England" Received: from mail-pa0-f49.google.com ([209.85.220.49] verified) by logan.com (CommuniGate Pro SMTP 6.1.8) with ESMTPS id 8327886 for flyrotary@lancaironline.net; Fri, 15 Jan 2016 00:13:15 -0500 Received-SPF: pass receiver=logan.com; client-ip=209.85.220.49; envelope-from=ceengland7@gmail.com Received: by mail-pa0-f49.google.com with SMTP id ho8so127992729pac.2 for ; Thu, 14 Jan 2016 21:13:15 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=user-agent:in-reply-to:references:mime-version:content-type :content-transfer-encoding:subject:from:date:to:message-id; bh=/Dr3HD2nMaUaKxsbbykPGnr+eWb+FidrtO1/H/oT2Fc=; b=ly8Cekbv9HI/PGHdN6z48rmOs4h4JOJ7NZc1C7n2e44gbdYJlQIoW1TOs21wKspOaw i/SxugCDtyauQClJq2K/PRm0Ofe11u5yw3ZEY+8F3a0dLY7ZFbl7JmLS/h/4VhHPzbvX WlrLSnaPGUieyWGAVubd2SnL0nydTv+PBqzBw7ZPLZkZn73Qlay8t6C+3DsfU777JySh YcqglMqGDHj97CR9tuGHi3Tb4YEUsPP1gRzA35BygpVfftWOeIaZnM+I7MtHyLdJmzoD fNI0A7N/3ZYUBCqcY1a1v3ZlTxXn5jn0WooLBLpkH2VYt8lpE75cCrCSU39C+V/lWx9/ cLtQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:user-agent:in-reply-to:references:mime-version :content-type:content-transfer-encoding:subject:from:date:to :message-id; bh=/Dr3HD2nMaUaKxsbbykPGnr+eWb+FidrtO1/H/oT2Fc=; b=Gpor5QwtfTVvNnUzjjTyY5ixdUHcpiZnvAsxMtMgTZ3Gm44dZ65WZolnKqTyKLjdxZ RLp60OQmGpAa3zOfzyjFY4fx9dqfcR/XtAwvSqHXeG4hj5eZUcijmgWSlD9SJtIEc6Mv LRZKy1chr3eWjO40B1wUeScntFMt3vGPKP96SBRo9HGh9F/4RqNsz0pSM8Fm4zJzE/e0 e2YhmFcYLwtqJPirLO48lTkw7aPuJHswY79b8NGbtKE5I1WW5m9yyWp04rtPyzelbzTa 3Afh1hVS/XyDAqnWbeT+fex3CyJWW/zCPl1UyZiHHOzZPxkUys9HhGBlZFOEuYSk518M Cqpw== X-Gm-Message-State: ALoCoQkYDL6Yy2E4/of1CQ8NiUBujOrAEkP+KaW0z2he3+C6QrMYzljkNJuOM0QHx+hMbk22xUVJVHY9ppFOwbdeYjKUTNeRIA== X-Received: by 10.66.65.109 with SMTP id w13mr12055008pas.142.1452834777546; Thu, 14 Jan 2016 21:12:57 -0800 (PST) Return-Path: Received: from ?IPv6:2602:306:25fa:b829:e0ce:1d17:f6d4:539b? ([2602:306:25fa:b829:e0ce:1d17:f6d4:539b]) by smtp.gmail.com with ESMTPSA id cq4sm12709579pad.28.2016.01.14.21.12.56 for (version=TLSv1/SSLv3 cipher=OTHER); Thu, 14 Jan 2016 21:12:56 -0800 (PST) User-Agent: K-9 Mail for Android In-Reply-To: References: MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----00MOHN0JDUYX4ERQH378P0BCWBBCBX" Content-Transfer-Encoding: 8bit Subject: Re: [FlyRotary] Re: Oil Scavenge Pump vs Custom Oil Pan Date: Thu, 14 Jan 2016 23:13:02 -0600 To: Rotary motors in aircraft Message-ID: ------00MOHN0JDUYX4ERQH378P0BCWBBCBX Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=UTF-8 On January 14, 2016 10:19:37 PM CST, Dennis Havarlah wrote: >I am seeing a decrease in engine oil pressure! About to stop flying >and start tearing the engine down. > >More information: > >RX8 Renesis 4 port in RV-7A. 670 total hours in flight. I fly at least >4 times a week. Mostly very short flights - 8 to 10 minutes each way >to play tennis. I use Mobil 1 oil (15 - 50 W). I change oil at 50 >hours. Check oil filter media for particles each time. Burn regular >mogas with ethanol and add 0.6 oz/gal oil ( 2 stroke outboard and >marvel mixed ). > >Over the past 100 hours my oil pressure has slowly decreased from 80 >psi to as low as 72 psi in cruse. Oil temps are about 180 deg. F. >Idle oil pressure is 50 - 53 psi at 1500 engine rpm when I land. > >When I inspect the oil filter media I find only a very few shinny >particles on the oil filter media and have not seen an increase in >number. I have to look win direct sunlight to see them. > >Is there anything I should be looking at - oil pump, oil pressure >regulator - ??? > >I'm contemplating taking off the oil pan this weekend. My oil and >water radiators are mounted under the engine so this will take some >time and be messy! > >Thanks for any and all info. > > >Dennis Haverlah Any way to verify gauge accuracy before taking things apart? -- Sent from my Android device with K-9 Mail. Please excuse my brevity. ------00MOHN0JDUYX4ERQH378P0BCWBBCBX Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: 8bit
On January 14, 2016 10:19:37 PM CST, Dennis Havarlah <flyrotary@lancaironline.net> wrote:
I am seeing a decrease in engine oil pressure!    About to stop flying and start tearing the engine down. 
 
More information:
 
RX8 Renesis 4 port in RV-7A. 670 total hours in flight.  I fly at least 4 times a week.  Mostly very short flights - 8 to 10 minutes each way to play tennis.  I use Mobil 1 oil (15 - 50 W).  I change oil at 50 hours.  Check oil filter media for particles each time.  Burn regular mogas with ethanol and add 0.6 oz/gal oil ( 2 stroke outboard and marvel mixed ). 
 
Over the past 100 hours my oil pressure has slowly decreased from 80 psi to as low as 72 psi in cruse.  Oil temps are about 180 deg. F.  Idle oil pressure is 50 - 53 psi at 1500 engine rpm when I land. 
 
When I inspect the oil filter media I find only a very few shinny particles on the oil filter media and have not seen an increase in number. I have to look win direct sunlight to see them.
 
Is there anything I should be looking at - oil pump, oil pressure regulator - ???
 
I'm contemplating taking off the oil pan this weekend.  My oil and water radiators are mounted under the engine so this will take some time and be messy!
 
Thanks for any and all info. 
 

Dennis Haverlah
 

Any way to verify gauge accuracy before taking things apart?
--
Sent from my Android device with K-9 Mail. Please excuse my brevity. ------00MOHN0JDUYX4ERQH378P0BCWBBCBX--