X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Thu, 17 Feb 2011 08:04:15 -0500 Message-ID: X-Original-Return-Path: Received: from blu0-omc3-s32.blu0.hotmail.com ([65.55.116.107] verified) by logan.com (CommuniGate Pro SMTP 5.4c2o) with ESMTP id 4873190 for lml@lancaironline.net; Thu, 17 Feb 2011 00:39:25 -0500 Received-SPF: pass receiver=logan.com; client-ip=65.55.116.107; envelope-from=cgainza@msn.com Received: from BLU139-W19 ([65.55.116.73]) by blu0-omc3-s32.blu0.hotmail.com with Microsoft SMTPSVC(6.0.3790.4675); Wed, 16 Feb 2011 21:38:50 -0800 X-Original-Message-ID: X-Original-Return-Path: cgainza@msn.com Content-Type: multipart/alternative; boundary="_81d98116-342c-484a-aa27-dad52a5c6255_" X-Originating-IP: [24.5.212.73] From: Craig Gainza X-Original-To: Lancair List Subject: high oil pressure X-Original-Date: Wed, 16 Feb 2011 21:38:50 -0800 Importance: Normal MIME-Version: 1.0 X-OriginalArrivalTime: 17 Feb 2011 05:38:50.0325 (UTC) FILETIME=[F4706850:01CBCE64] --_81d98116-342c-484a-aa27-dad52a5c6255_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable I was recently practicing approaches and was alarmed to find a very high oi= l pressure reading on final (81psi). MAP was about 15" and 2500 rpm. Oil = temp was 157. I closed the oil cooler door and as the temperature went up= the oil pressure subsided. I flew again and carefully monitored the oil temp so it ranged between 165-= 185 and the oil pressure seemed to settle about 55-60 psi in all configurat= ions=2C at a 135 oil temp the oil pressure was 77. In reviewing past photo= s of my Chelton screens during trips I have routinely had oil pressures bet= ween 45-50 psi with 165-185 oil temps. I now have oil pressures that are 1= 0 psi higher (55-60psi). I teed off of the oil pressure sender with another gauge and found the pres= sure sender was operating properly. Oil temperature issues have never been= a problem. I am using Phillip X/C 20-50w oil. In the last six months=2C = two hoses were changed: a turbocharger hose and a remote oil filter hose. There is not a lot of info about high oil pressure problems. I was hoping = that someone on the list may be able to shed some light on this issue. =20 Thank you in advance=2C Craig Gainza Lancair IV-P TSIOF 550 697 hours = --_81d98116-342c-484a-aa27-dad52a5c6255_ Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable I was recently practicing approaches and was alarmed to find a very high oi= l pressure reading on final (81psi). =3B MAP was about 15" and 2500 rpm= . =3B Oil temp was 157. =3B =3B I closed the oil cooler door an= d as the temperature went up the oil pressure subsided.

I flew again= and carefully monitored the oil temp so it ranged between 165-185 and the = oil pressure seemed to settle about 55-60 psi in all configurations=2C at a= 135 oil temp the oil pressure was 77. =3B In reviewing past photos of = my Chelton screens during trips I have routinely had oil pressures between = 45-50 psi with 165-185 oil temps. =3B I now have oil pressures that are= 10 psi higher (55-60psi).

I teed off of the oil pressure sender wit= h another gauge and found the pressure sender was operating properly. = =3B Oil temperature issues have never been a problem. =3B I am using Ph= illip X/C 20-50w oil. =3B In the last six months=2C two hoses were chan= ged: =3B a turbocharger hose and a remote oil filter hose.

There= is not a lot of info about high oil pressure problems. =3B I was hopin= g that someone on the list may be able to shed some light on this issue.&nb= sp=3B

Thank you in advance=2C

Craig Gainza
Lancair IV-PTSIOF 550
697 hours

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