X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Tue, 02 Sep 2014 16:13:06 -0400 Message-ID: X-Original-Return-Path: Received: from nm49-vm1.bullet.mail.bf1.yahoo.com ([216.109.115.188] verified) by logan.com (CommuniGate Pro SMTP 6.0.9e) with ESMTP id 7125500 for lml@lancaironline.net; Tue, 02 Sep 2014 14:22:58 -0400 Received-SPF: pass receiver=logan.com; client-ip=216.109.115.188; envelope-from=n103md@yahoo.com Received: from [66.196.81.171] by nm49.bullet.mail.bf1.yahoo.com with NNFMP; 02 Sep 2014 18:21:50 -0000 Received: from [98.139.212.238] by tm17.bullet.mail.bf1.yahoo.com with NNFMP; 02 Sep 2014 18:21:50 -0000 Received: from [127.0.0.1] by omp1047.mail.bf1.yahoo.com with NNFMP; 02 Sep 2014 18:21:50 -0000 X-Yahoo-Newman-Property: ymail-5 X-Yahoo-Newman-Id: 433711.43993.bm@omp1047.mail.bf1.yahoo.com Received: (qmail 33387 invoked by uid 60001); 2 Sep 2014 18:21:50 -0000 X-YMail-OSG: XDFD0QIVM1ktHLJbC6Cw_P7LVlgxTPE6tr.t0F7523sUBHQ IyFkk2jTZHRGRcvpYGuboAIPqE8511lM2i9HYWjBtBQMKw5aRrt1RHbdvfDF Uc8mEauZMLTF.nW.levOJ5hgtoS.USI7.yX6T2DH4O8eUkkpDxCWi_1.FSVq Do1MWrtbXKYiCn8A6lW.0JqVUNr4fBTRjapPo_YvfGhjj3IUpizjLJ5SLBBZ 0afz6NP1TrQh5aRX0MQmbs1DiWk0mVNQpob0aTzTSBXrmtt2hc.AFZ8zzR2X 2X4PRVirYj1uyToYtyl1ksHfM2fEuR7ocepu8FkK6l4iSX.gj1eIxkMS7fRz N9j8rr9ZIwx.HiReumELiDurgtuACo7F2qMhYQHRA56FbOOhadGLBma4lB3T JvHc.bTfWpeFKMexnsRSvDtzY2hJtsHdFAHj6IK16Qic3TR9wuqCmlTdmu4T onsHJQVulsixXtTNxa9DtKNG35A._hQkEGQ2pRAZufu4HEZ.LkIT_lsO1sSc i0xdTgemB9ViXdDMrx1xdwdfbBWGuSKvbk4Ae7RV8RRByvftjnA-- Received: from [192.147.44.15] by web161002.mail.bf1.yahoo.com via HTTP; Tue, 02 Sep 2014 11:21:50 PDT X-Rocket-MIMEInfo: 002.001,PiBEb2VzIGFueW9uZSBoYXZlIGFueSByZWNvbW1lbmRhdGlvbnM_IAoKCkEgZmV3Li4uLgoxKSBzcGVjaWZ5IHRoZSB0eXBlIG9mIGVuZ2luZSBhbmQgYWlyY3JhZnQKMikgY2hlY2sgdGhlIG9idmlvdXMgdGhpbmdzIGZpcnN0OiAKCklzIHRoZXJlIGVub3VnaCBvaWw_CklzIHRoZSBvaWwgZnJlZWx5IG1vdmluZyB0aHJvdWdoIHRoZSBvaWwgY29vbGVyPwpJcyBjb29sIGFpciBibG93aW5nIHRocm91Z2ggdGhlIG9pbCBjb29sZXI_IAoKV2FzIGl0IHdvcmtpbmcgZmluZSBiZWZvcmU_IE9yIHdhcyB0aGUgb2kBMAEBAQE- X-Mailer: YahooMailWebService/0.8.203.696 X-Original-Message-ID: <1409682110.11329.YahooMailNeo@web161002.mail.bf1.yahoo.com> X-Original-Date: Tue, 2 Sep 2014 11:21:50 -0700 From: bob mackey Reply-To: bob mackey Subject: re: Engine Oil Temps; May need fuel system setup X-Original-To: "lml@lancaironline.net" MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="442175996-1447266785-1409682110=:11329" --442175996-1447266785-1409682110=:11329 Content-Type: text/plain; charset=us-ascii > Does anyone have any recommendations? A few.... 1) specify the type of engine and aircraft 2) check the obvious things first: Is there enough oil? Is the oil freely moving through the oil cooler? Is cool air blowing through the oil cooler? Was it working fine before? Or was the oil always too hot? If it is a recent problem, what changed? (Change it back) If it is a chronic problem with this aircraft, what is the air pressure drop across the cooler? What is the air temperature increase after passing through the oil cooler? Is the right oil cooler installed? It is not at all clear to me that the warm oil is an indication of a fuel problem. If all 4 or 6 cylinders are running smoothly ROP and LOP, then the problem is heat removal, not fuel supply. If the CHTs are OK, then the problem is specifically about the oil system, and not airflow over the cylinders. Changing the fuel system when the oil cooler is clogged would just compound the problems. --442175996-1447266785-1409682110=:11329 Content-Type: text/html; charset=us-ascii
> Does anyone have any recommendations?

A few....
1) specify the type of engine and aircraft
2) check the obvious things first:
Is there enough oil?
Is the oil freely moving through the oil cooler?
Is cool air blowing through the oil cooler?
Was it working fine before? Or was the oil always too hot?

If it is a recent problem, what changed? (Change it back)
If it is a chronic problem with this aircraft, what is the air pressure drop across the cooler? What is the air temperature increase after passing through the oil cooler? Is the right oil cooler installed?
 
It is not at all clear to me that the warm oil is an indication of a fuel problem. 
If all 4 or 6 cylinders are running smoothly ROP and LOP, then the problem is heat removal, not fuel supply. If the CHTs are OK, then the problem is specifically about the oil system, and not airflow over the cylinders.
Changing the fuel system when the oil cooler is clogged would just compound the problems. 

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