X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Tue, 27 Aug 2013 13:59:30 -0400 Message-ID: X-Original-Return-Path: Received: from nm22-vm2.bullet.mail.ne1.yahoo.com ([98.138.91.210] verified) by logan.com (CommuniGate Pro SMTP 6.0.6) with ESMTPS id 6443473 for lml@lancaironline.net; Tue, 27 Aug 2013 11:29:10 -0400 Received-SPF: none receiver=logan.com; client-ip=98.138.91.210; envelope-from=dudewanarace@yahoo.com Received: from [98.138.226.180] by nm22.bullet.mail.ne1.yahoo.com with NNFMP; 27 Aug 2013 15:28:34 -0000 Received: from [98.138.226.166] by tm15.bullet.mail.ne1.yahoo.com with NNFMP; 27 Aug 2013 15:28:33 -0000 Received: from [127.0.0.1] by omp1067.mail.ne1.yahoo.com with NNFMP; 27 Aug 2013 15:28:33 -0000 X-Yahoo-Newman-Property: ymail-3 X-Yahoo-Newman-Id: 761823.90656.bm@omp1067.mail.ne1.yahoo.com Received: (qmail 39547 invoked by uid 60001); 27 Aug 2013 15:28:33 -0000 DomainKey-Signature:a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=X-YMail-OSG:Received:X-Rocket-MIMEInfo:X-Mailer:Message-ID:Date:From:Reply-To:Subject:To:MIME-Version:Content-Type; b=3BlBT5dOOEyNZSvo0wQOAl5o2uiwZJkSLbqPHCLBvppWEX6ni6SAtQeZlmtgrkq/oceZ074Z3Bz0ukFEu4Yvqok52UtVdOPsFMzms8U2ggwRipONoFkSY4JZeAKgZzs+ewePT9xpKIIDQS3qlrxh+fHUM8y6rYCaqCo4Zgoz0UI=; X-YMail-OSG: m52pCc4VM1n0C1dZGj7vXOhG4Gqz0I9BeGbo3KJP1OU7XGv 3axlvUfSvKcACT28UNNqmjgqMdlQYU77R20PklcJfevGkyXmiSTNHChuii5e aVDDZeaLbfI11nYea_5FXJQ7TrkFUeGg0D1Vb5xg6gnelJYvP3_1N6hhdiwG rTJJamyrkV8BUkxV9XGufU4WLff9k2mg6GgcJzwulkC7RudBHo27GXWT3Bmm 0XSzYSGYlshJ3NNMU8xEUad6I8hWHDUdTbmEnm2m30FuFvtKgWB9eP7OPYzR OvR_2Tby2atPgiYu7AXn2vSke_TSH32Hn60Wicm42g_X6L899564I2X5zwOj WpsYuNvFOGs54_B5pZV_wDFS3OHp62a60E5MRnzRj7nxU4.7r.842oeYcTQ. iawiqnIWsyIp1fNMxSz3fm511qnSe8vImbt4qEc2ve74M23q_0qWkLFAfFeN SVYJoqSB1pP1cbFDojX_jAzp_LCi8lYO4WgQHSERkcGDch9aYSN.7_ygaYf8 bXs1j_SxzQlbhBo8AXk9D36NqkMIuL86IKlCngSemO0vKEHbtemE32wTHF4c nHnzX5CRghLTBrb2ZMwsBqyJl6ypQd_1i5kYtPCJtFCldp0C0ip6I2whOdOC ZFPm5f26Aat2Oaw8_xd8KxZ4ECnBR4UIK5.UOX0pna5vT Received: from [24.2.15.88] by web120902.mail.ne1.yahoo.com via HTTP; Tue, 27 Aug 2013 08:28:32 PDT X-Rocket-MIMEInfo: 002.001,SXJvbmljYWxseSwgSSBoYWQgdGhlIGV4YWN0IHNhbWUgcHJvYmxlbSwgYnV0IHJldmVyc2VkLiDCoEkgaGFkIHRoZSBnYXNrZXQgZm9yIHlvdXIgaG91c2luZyBpbnN0YWxsZWQgb24gYSBCJkMgb2lsIGZpbHRlciBhZGFwdGVyIHdpdGggYSB2ZXJuYXRoZXJtLiDCoEkgaGFkIGhpZ2ggb2lsIHRlbXBzIGZyb20gdGhlIGRheSBJIHB1cmNoYXNlZCB0aGUgYWlycGxhbmUuIMKgQWZ0ZXIgYWRkaW5nIGEgc2Vjb25kIG9pbCBjb29sZXIgYW5kIGdldHRpbmcgZXhhY3RseSBOTyBjaGFuZ2UgaW4gdGVtcCwgSSBzdGEBMAEBAQE- X-Mailer: YahooMailWebService/0.8.155.576 X-Original-Message-ID: <1377617312.39224.YahooMailNeo@web120902.mail.ne1.yahoo.com> X-Original-Date: Tue, 27 Aug 2013 08:28:32 -0700 (PDT) From: dudewanarace@yahoo.com Reply-To: dudewanarace@yahoo.com Subject: RE: Lycoming 320 high oil temp X-Original-To: Lancair Mailing List MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="-1577048185-2124531909-1377617312=:39224" ---1577048185-2124531909-1377617312=:39224 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Ironically, I had the exact same problem, but reversed. =C2=A0I had the gas= ket for your housing installed on a B&C oil filter adapter with a vernather= m. =C2=A0I had high oil temps from the day I purchased the airplane. =C2=A0= After adding a second oil cooler and getting exactly NO change in temp, I s= tarted digging. =C2=A0I would never have thought somebody would think this = gasket would have worked. =C2=A0You can see the gasket is blocking over hal= f of the port that flows oil to the cooler.=0Ahttp://www.n54sg.com/wp-conte= nt/uploads/2011/01/wronggasket02.jpg=0A=0A=0AThe difference in gaskets, onl= y labeled backwards from your application:=0Ahttp://www.n54sg.com/wp-conten= t/uploads/2011/01/wronggasket01.jpg=0A=0A=0AReally disappointed by whoever = did that to both of us. =C2=A0The headaches I dealt with trying to solve oi= l temps over a $3 gasket really gets me. =C2=A0I've felt your pain Nick..= =0A=0ATom McNerney=0Awww.N54SG.com=C2=A0=0A=0A=0A=0A=0AHello Everyone,=0A= =0AMy engine is currently being overhauled. It's a IO-320-B1A in a Lancair = 320. It was fitted with a remote oil filter and the engine shop has shown m= e something interesting. They say the wrong gasket was fitted and two diver= sion valves were installed, with the net effect that oil would not have bee= n diverted to the cooler properly.=0A=0AHere are some pictures I took and w= hat I recollect of the explanation about the oil system.=0A=0AIn one pictur= e I am holding the oil filter take off housing. The thermostatic valve is i= n the housing; this extends as it gets hot and closes off a hole in the eng= ine back plate to divert the oil through the cooler. You can see that the g= asket cut out does not fit the cut out in the housing; this prevents the va= lve closing the hole fully. Also, the old fashioned viscosity valve was fit= ted =E2=80=93 in the other picture this is being held in place with a finge= r. This also prevents the thermostatic valve from extending fully. The visc= osity valve was superceded by the thermostatic valve ages ago and you shoul= d not have both fitted.=0A=0AApparently, the result would have been much re= duced flow through the oil cooler.=0A=0A(With the oil filter on the engine,= a different housing is used; the thermostatic valve comes in from a differ= ent direction and these issues do not occur.)=0A=0AI'm told that this remot= e filter conversion was fitted exactly according to an STC. I have had high= oil temperatures with this engine and this looks like the explanation. If = anyone has the remote oil filter conversion and is seeing high oil temperat= ures it may be worth checking these details.=0A=0AYours,=0A=0ANick Long=0A ---1577048185-2124531909-1377617312=:39224 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable
Ironically, I had the exact= same problem, but reversed.  I had the gasket for your housing instal= led on a B&C oil filter adapter with a vernatherm.  I had high oil= temps from the day I purchased the airplane.  After adding a second o= il cooler and getting exactly NO change in temp, I started digging.  I= would never have thought somebody would think this gasket would have worke= d.  You can see the gasket is blocking over half of the port that flow= s oil to the cooler.

The difference in gaskets, only l= abeled backwards from your application:

Really disappointed by= whoever did that to both of us.  The headaches I dealt with trying to= solve oil temps over a $3 gasket really gets me.  I've felt your pain Nick..

Tom McNerney
www.N54SG.com 




Hello Everyone,

My engine is currently being= overhauled. It's a IO-320-B1A in a Lancair 320. It was fitted with a remot= e oil filter and the engine shop has shown me something interesting. They s= ay the wrong gasket was fitted and two diversion valves were installed, wit= h the net effect that oil would not have been diverted to the cooler properly.

Here are some = pictures I took and what I recollect of the explanation about the oil syste= m.

In one pic= ture I am holding the oil filter take off housing. The thermostatic valve i= s in the housing; this extends as it gets hot and closes off a hole in the = engine back plate to divert the oil through the cooler. You can see that th= e gasket cut out does not fit the cut out in the housing; this prevents the = valve closing the hole fully. Also, the old fashioned viscosity valve was f= itted =E2=80=93 in the other picture this is being held in place with a fin= ger. This also prevents the thermostatic valve from extending fully. The vi= scosity valve was superceded by the thermostatic valve ages ago and you sho= uld not have both fitted.

Apparently, the result would have been much reduced flow throu= gh the oil cooler.

(With the oil filter on the engine, a different housing is u= sed; the thermostatic valve comes in from a different direction and these i= ssues do not occur.)

I'm told that this remote filter conversion was fitted exactly acc= ording to an STC. I have had high oil temperatures with this engine and thi= s looks like the explanation. If anyone has the remote oil filter conversio= n and is seeing high oil temperatures it may be worth checking these detail= s.

Yours,
Nick Long
<= /div>
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