X-CGP-ClamAV-Result: CLEAN X-VirusScanner: Niversoft's CGPClamav Helper v1.23.0 (ClamAV engine v0.103.0) X-Junk-Score: 0 [] X-KAS-Score: 0 [] From: "Bobby Hughes BHughes@qnsinc.net" Received: from us-smtp-delivery-128.mimecast.com ([170.10.133.128] verified) by logan.com (CommuniGate Pro SMTP 6.3.5) with ESMTPS id 658979 for flyrotary@lancaironline.net; Tue, 08 Feb 2022 07:02:02 -0500 Received-SPF: pass receiver=logan.com; client-ip=170.10.133.128; envelope-from=bhughes@qnsinc.net Received: from QNSI-EX2016.qnsinc.local (207-91-159-28.nstci.net [207.91.159.28]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id us-mta-606-llTgo2I7NqGjaQ_n-2yj_g-1; Tue, 08 Feb 2022 07:01:40 -0500 X-MC-Unique: llTgo2I7NqGjaQ_n-2yj_g-1 Received: from QNSI-EX2016.qnsinc.local (10.0.0.34) by QNSI-EX2016.qnsinc.local (10.0.0.34) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.20; Tue, 8 Feb 2022 06:01:40 -0600 Received: from QNSI-EX2016.qnsinc.local ([fe80::e455:3daa:dac4:de26]) by QNSI-EX2016.qnsinc.local ([fe80::e455:3daa:dac4:de26%2]) with mapi id 15.01.2308.020; Tue, 8 Feb 2022 06:01:40 -0600 To: Rotary motors in aircraft Subject: Re: [FlyRotary] Oil Pressure Thread-Topic: [FlyRotary] Oil Pressure Thread-Index: AQHYHHqTp1PUhYXR9k2aI9g68rxMmKyJjk2o Date: Tue, 8 Feb 2022 12:01:39 +0000 Message-ID: References: In-Reply-To: Accept-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: MIME-Version: 1.0 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA28A264 smtp.mailfrom=bhughes@qnsinc.net X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: qnsinc.net Content-Language: en-US Content-Type: multipart/alternative; boundary="_000_BL0PR05MB5298C5429A7522956A859ADBA62D9BL0PR05MB5298namp_" --_000_BL0PR05MB5298C5429A7522956A859ADBA62D9BL0PR05MB5298namp_ Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Steve, I used a racing oil pressure regulator with the thermal pellet and oil jets= removed. Pressure ran between 95 and 88 psi. Lower pressure with hotter o= il. Low rpm pressure would drop to the low 30=E2=80=99s with hot oil on la= nding roll out. You may have a bad oil pressure sensor or a marginal senso= r ground that is changing in flight Bobby Get Outlook for iOS ________________________________ From: Rotary motors in aircraft on behalf of = Stephen Izett stephen.izett@gmail.com Sent: Monday, February 7, 2022 6:29:09 PM To: Rotary motors in aircraft Subject: [FlyRotary] Oil Pressure Hi guys I=E2=80=99ve just noticed that my oil pressure on the last flight dropped l= ower than ever before. At takeoff 7000 rpm with an oil temp of 71C (160F) it peeks at 65 psi (acco= rding to the sender) then drops off as Oil temp peeked at 100C (212F) with = a pressure of 35 psi. During the flight as the oil temp dropped to 86C (187F) the oil pressure wa= s then 55 psi. Pressure appears independent of rpm and closely tracks oil temp. I can=E2=80=99t recall the weight of the oil I=E2=80=99m presently using. Engine is a standard unmodified Renesis 4 port except the mod to replace th= e thermal pellet in the e shaft. Would appreciate your thoughts and numbers. Steve Izett -- Homepage: http://www.flyrotary.com/ Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List.ht= ml Disclaimer The information contained in this communication from the sender is confiden= tial. It is intended solely for use by the recipient and others authorized = to receive it. If you are not the recipient, you are hereby notified that a= ny disclosure, copying, distribution or taking action in relation of the co= ntents of this information is strictly prohibited and may be unlawful. This email has been scanned for viruses and malware, and may have been auto= matically archived by Mimecast Ltd, an innovator in Software as a Service (= SaaS) for business. Providing a safer and more useful place for your human = generated data. Specializing in; Security, archiving and compliance. To fin= d out more visit the Mimecast website. --_000_BL0PR05MB5298C5429A7522956A859ADBA62D9BL0PR05MB5298namp_ Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable <= /head>
Steve,

I used a racing oil pressure regulator with the thermal pellet and oil jets= removed.  Pressure ran between 95 and 88 psi. Lower pressure with hot= ter oil.  Low rpm pressure would drop to the low 30=E2=80=99s with hot= oil on landing roll out.  You may have a bad oil pressure sensor or a marginal sensor ground that is changing in flight&nbs= p;

Bobby 
From: Rotary motors in airc= raft <flyrotary@lancaironline.net> on behalf of Stephen Izett stephen= .izett@gmail.com <flyrotary@lancaironline.net>
Sent: Monday, February 7, 2022 6:29:09 PM
To: Rotary motors in aircraft <flyrotary@lancaironline.net> Subject: [FlyRotary] Oil Pressure
 

Hi guys

I=E2=80=99ve just noticed that my oil pressure on the last flight dropped l= ower than ever before.

At takeoff 7000 rpm with an oil temp of 71C (160F) it peeks at 65 psi (acco= rding to the sender) then drops off as Oil temp peeked at 100C (212F) with = a pressure of 35 psi.
During the flight as the oil temp dropped to 86C (187F) the oil pressure wa= s then 55 psi.
Pressure appears independent of rpm and closely tracks oil temp.
I can=E2=80=99t recall the weight of the oil I=E2=80=99m presently using. Engine is a standard unmodified Renesis 4 port except the mod to replace th= e thermal pellet in the e shaft.

Would appreciate your thoughts and numbers.

Steve Izett



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