Return-Path: Received: from imf25aec.mail.bellsouth.net ([205.152.59.73] verified) by logan.com (CommuniGate Pro SMTP 4.2.5) with ESMTP id 592880 for flyrotary@lancaironline.net; Wed, 05 Jan 2005 21:27:28 -0500 Received-SPF: pass receiver=logan.com; client-ip=205.152.59.73; envelope-from=sladerj@bellsouth.net Received: from JSLADE ([65.8.33.233]) by imf25aec.mail.bellsouth.net (InterMail vM.5.01.06.11 201-253-122-130-111-20040605) with ESMTP id <20050106022657.CZIL2518.imf25aec.mail.bellsouth.net@JSLADE> for ; Wed, 5 Jan 2005 21:26:57 -0500 From: "John Slade" To: "Rotary motors in aircraft" Subject: Acceptable oil pressure Date: Wed, 5 Jan 2005 21:26:56 -0500 Message-ID: MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0161_01C4F36D.483D7AB0" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0) In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1409 Importance: Normal This is a multi-part message in MIME format. ------=_NextPart_000_0161_01C4F36D.483D7AB0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Leon and anyone else who cares to comment... The remaining question with my installation is whether the oil pressure is acceptable, or whether something actually wrong. Everything has been triple calibrated now, so I'm pretty sure of the following readings..... Start-up at 70F ambient gets me 80 - 85PSI. Once the oil gets hot I'm seeing about 15 or so at idle, 25 PSI at 2000 rpm, 45 PSI at 3500 rpm, and maybe 60 PSI at 4000. Talking about today with Tracy he felt it was marginal, and was wondering if this might be normal with a combination of a turbo and a redrive both taking pressure. Other possible causes he suggested were Ed's spinning shaft syndrome or air being sucked by a leaking oil pickup. I hate to remove the engine (again) to check these items. What do people think? Anything else I can check? John (no more soot on the prop) ------=_NextPart_000_0161_01C4F36D.483D7AB0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Leon = and anyone else=20 who cares to comment...
 
The = remaining=20 question with my installation is whether the oil pressure is acceptable, = or=20 whether something actually wrong.
Everything has been=20 triple calibrated now, so I'm pretty sure of the following=20 readings.....
 
Start-up at 70F=20 ambient gets me 80 - 85PSI.  Once the oil gets hot I'm seeing about = 15 or=20 so at idle, 25 PSI at 2000 rpm, 45 PSI at 3500 rpm, and maybe 60 PSI at=20 4000.  Talking about today with Tracy he felt it was marginal, = and was=20 wondering if this might be normal with a combination of a turbo and = a=20 redrive both taking pressure.  Other possible causes he suggested = were Ed's=20 spinning shaft syndrome or air being sucked by a leaking oil pickup.=20
 
I hate = to remove the=20 engine (again) to check these items.
 
What = do people=20 think? Anything else I can check?
 
John = (no more soot=20 on the prop)
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