X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from fmailhost05.isp.att.net ([207.115.11.55] verified) by logan.com (CommuniGate Pro SMTP 5.3c1) with ESMTP id 3951724 for flyrotary@lancaironline.net; Fri, 06 Nov 2009 19:39:04 -0500 Received-SPF: none receiver=logan.com; client-ip=207.115.11.55; envelope-from=keltro@att.net DKIM-Signature: v=1; q=dns/txt; d=att.net; s=dkim01; i=keltro@att.net; a=rsa-sha256; c=relaxed/relaxed; t=1257554345; h=Content-Type: MIME-Version:In-Reply-To:Message-Id:Date:Subject:To:From; bh=6z7v/W P5teDxzARyuv6vdOG2oD2Ps5LGGU3qG1GJ9tQ=; b=I1n6uPcTToKY+WTVXCksFixE2 j3PDNuKXvmwp92vHrrEmMerO+p4u8ioSlPUHvVbnbdeEn4PPVOGb2W00KmWAg== Received: from fwebmail16.isp.att.net ([207.115.9.156]) by isp.att.net (frfwmhc05) with SMTP id <20091107003829H0500n5lsae>; Sat, 7 Nov 2009 00:38:29 +0000 X-Originating-IP: [207.115.9.156] Received: from [208.114.44.39] by fwebmail16.isp.att.net; Sat, 07 Nov 2009 00:38:28 +0000 From: "Kelly Troyer" To: "Rotary motors in aircraft" Subject: Re: [FlyRotary] Oil Pressure Date: Sat, 07 Nov 2009 00:38:28 +0000 Message-Id: <110720090038.27298.4AF4C1840005F7A400006AA222218801869B0A02D29B9B0EBF019D9B040A05@att.net> In-Reply-To: X-Mailer: AT&T Message Center Version 1 (Mar 2 2009) X-Authenticated-Sender: a2VsdHJvQGF0dC5uZXQ= MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="NextPart_Webmail_9m3u9jl4l_27298_1257554308_0" --NextPart_Webmail_9m3u9jl4l_27298_1257554308_0 Content-Type: text/plain Content-Transfer-Encoding: 8bit Bobby, Did you change the ball and springs for fixed jets in your eccentric shaft ??..........This mod can cause idle oil pressure to be low.............Especially when oil is hot.............. -- Kelly Troyer "Dyke Delta"_13B ROTARY Engine "RWS"_RD1C/EC2/EM2 "Mistral"_Backplate/Oil Manifold -------------- Original message from "Bobby J. Hughes" : -------------- Can anyone tell me why my oil pressure drops to 26 psi at idle \ 1500 rpm after oil temps reach 150F+? Oil pressure at start up is around 65 psi measured at the oil pad block. As the oil heats up the pressure slowly drops to around 56 psi. At some point with oil at 150-165F I can pull the throttle and pressure goes to between 32 and 26 psi. Dennis H and I compared oil pressure on his Renesis under the same conditions today and his pressure never dropped under 72 psi. Highest pressure was a little over 80 psi. My cruise oil pressure is about 56 psi. The Renesis manual shows 50.8 psi at 3000 rpm \ 212F oil temp. His engine may be a 2005 and mine is a 2004. I also have a oil to water exchanger and he has the stock oil RX7 oil cooler. Bobby J Hughes RV10 Super Renesis --NextPart_Webmail_9m3u9jl4l_27298_1257554308_0 Content-Type: multipart/related; boundary="NextPart_Webmail_9m3u9jl4l_27298_1257554308_1" --NextPart_Webmail_9m3u9jl4l_27298_1257554308_1 Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: quoted-printable

Bobby,

Did you change the ball and springs for fixed jets in you= r eccentric shaft ??..........This mod

can cause idle oil pressure to be low.............Especially when oil = is hot..............

--
Kelly Troyer
"Dyke Delta"_1= 3B ROTARY Engine
"RWS"_RD1C/EC2/EM2
"Mistral"_Backplate/Oil Manifol= d

-------------- Original message from "Bobby J. Hughes" <b= hughes@qnsi.net>: --------------

Can anyon= e tell me why my oil pressure drops to 26 psi at idle \ 1500 rpm after oil = temps reach 150F+? Oil pressure at start up is around 65 psi measured at th= e oil pad block. As the oil heats up the pressure slowly drops to around 56= psi. At some point with oil at 150-165F I can pull the throttle and p= ressure goes to between 32 and 26 psi. Dennis H and I compared oil pressure= on his Renesis under the same conditions today and his pressure never= dropped under 72 psi. Highest pressure was a little over 80 psi. My c= ruise oil pressure is about 56 psi. The Renesis manual shows 50.8 psi = at 3000 rpm \ 212F oil temp. His engine may be a 2005 and mine is a 20= 04. I also have a oil to water exchanger and he has the stock oil RX7 oil c= ooler.

Bobby J Hug= hes

RV10 Super Renesis

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