X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Wed, 28 Aug 2013 10:27:14 -0400 Message-ID: X-Original-Return-Path: Received: from omr-m04.mx.aol.com ([64.12.143.78] verified) by logan.com (CommuniGate Pro SMTP 6.0.6) with ESMTPS id 6444706 for lml@lancaironline.net; Wed, 28 Aug 2013 08:00:58 -0400 Received-SPF: pass receiver=logan.com; client-ip=64.12.143.78; envelope-from=vtailjeff@aol.com Received: from mtaout-da02.r1000.mx.aol.com (mtaout-da02.r1000.mx.aol.com [172.29.51.130]) by omr-m04.mx.aol.com (Outbound Mail Relay) with ESMTP id D0E6E7000008D for ; Wed, 28 Aug 2013 08:00:23 -0400 (EDT) Received: from [192.168.1.119] (24-107-98-233.dhcp.stls.mo.charter.com [24.107.98.233]) (using TLSv1 with cipher AES128-SHA (128/128 bits)) (No client certificate requested) by mtaout-da02.r1000.mx.aol.com (MUA/Third Party Client Interface) with ESMTPSA id 78B59E0000C6; Wed, 28 Aug 2013 08:00:23 -0400 (EDT) References: In-Reply-To: Mime-Version: 1.0 (1.0) Content-Type: multipart/alternative; boundary=Apple-Mail-AEAF7DCD-AB8F-4714-B993-4330518C8180 X-Original-Message-Id: Content-Transfer-Encoding: 7bit X-Mailer: iPad Mail (9B206) From: vtailjeff@aol.com Subject: Re: [LML] Re: Lycoming 320 high oil temp X-Original-Date: Wed, 28 Aug 2013 07:00:26 -0500 X-Original-To: Lancair Mailing List x-aol-global-disposition: G x-aol-sid: 3039ac1d3382521de6577ca3 X-AOL-IP: 24.107.98.233 --Apple-Mail-AEAF7DCD-AB8F-4714-B993-4330518C8180 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=utf-8 What was the history of the gasket? Who installed it? Sent from my iPad On Aug 28, 2013, at 6:54 AM, "Nick Long" wrote: > Hi Tom, > =20 > Interesting. I think there=E2=80=99s a clear message here =E2=80=93 anyone= with high oil temp should check these gaskets. > =20 > You would think it would be difficult to fit the wrong gasket =E2=80=93 th= ey are visibly wrong. Personally, I=E2=80=99d be very unhappy about a gasket= partially blocking an oil hole; I=E2=80=99d be worried a bit might break of= f and get stuck somewhere it could block the passageway to a bearing. > =20 > Nick > =20 > =20 > From: dudewanarace@yahoo.com > Sent: Tuesday, August 27, 2013 6:59 PM > To: lml@lancaironline.net > Subject: [LML] Re: Lycoming 320 high oil temp > =20 > Ironically, I had the exact same problem, but reversed. I had the gasket f= or your housing installed on a B&C oil filter adapter with a vernatherm. I h= ad high oil temps from the day I purchased the airplane. After adding a sec= ond oil cooler and getting exactly NO change in temp, I started digging. I w= ould never have thought somebody would think this gasket would have worked. = You can see the gasket is blocking over half of the port that flows oil to t= he cooler. > http://www.n54sg.com/wp-content/uploads/2011/01/wronggasket02.jpg > =20 > The difference in gaskets, only labeled backwards from your application: > http://www.n54sg.com/wp-content/uploads/2011/01/wronggasket01.jpg > =20 > Really disappointed by whoever did that to both of us. The headaches I de= alt with trying to solve oil temps over a $3 gasket really gets me. I've fe= lt your pain Nick.. > =20 > Tom McNerney > www.N54SG.com > =20 > =20 > =20 > =20 > Hello Everyone, >=20 > My engine is currently being overhauled. It's a IO-320-B1A in a Lancair 32= 0. It was fitted with a remote oil filter and the engine shop has shown me s= omething interesting. They say the wrong gasket was fitted and two diversion= valves were installed, with the net effect that oil would not have been di= verted to the cooler properly. >=20 > Here are some pictures I took and what I recollect of the explanation abou= t the oil system. >=20 > In one picture I am holding the oil filter take off housing. The thermosta= tic valve is in the housing; this extends as it gets hot and closes off a ho= le in the engine back plate to divert the oil through the cooler. You can se= e that the gasket cut out does not fit the cut out in the housing; this pre= vents the valve closing the hole fully. Also, the old fashioned viscosity v= alve was fitted =E2=80=93 in the other picture this is being held in place w= ith a finger. This also prevents the thermostatic valve from extending full= y. The viscosity valve was superceded by the thermostatic valve ages ago an= d you should not have both fitted. >=20 > Apparently, the result would have been much reduced flow through the oil c= ooler. >=20 > (With the oil filter on the engine, a different housing is used; the therm= ostatic valve comes in from a different direction and these issues do not oc= cur.) >=20 > I'm told that this remote filter conversion was fitted exactly according t= o an STC. I have had high oil temperatures with this engine and this looks l= ike the explanation. If anyone has the remote oil filter conversion and is s= eeing high oil temperatures it may be worth checking these details. >=20 > Yours, >=20 > Nick Long --Apple-Mail-AEAF7DCD-AB8F-4714-B993-4330518C8180 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=utf-8
What was the history of th= e gasket? Who installed it?

Sent from my iPad

On Aug 28= , 2013, at 6:54 AM, "Nick Long" <n= ick@beaglepup.info> wrote:

Hi Tom,
 
Interesting. I think there=E2=80=99s a clear message here =E2=80=93 any= one with high oil=20 temp should check these gaskets.
 
You would think it would be difficult to fit the wrong gasket =E2=80=93= they are=20 visibly wrong. Personally, I=E2=80=99d be very unhappy about a gasket partia= lly blocking=20 an oil hole; I=E2=80=99d be worried a bit might break off and get stuck some= where it=20 could block the passageway to a bearing.
 
Nick
 
 
From: dudewanarace@yahoo.com
Sent: Tuesday, August 27, 2013 6:59 PM
Subject: [LML] Re: Lycoming 320 high oil temp
 
Ironically, I had the exact same problem, but reversed.  I had the= =20 gasket for your housing installed on a B&C oil filter adapter with a=20 vernatherm.  I had high oil temps from the day I purchased the=20 airplane.  After adding a second oil cooler and getting exactly NO chan= ge=20 in temp, I started digging.  I would never have thought somebody would=20= think this gasket would have worked.  You can see the gasket is blockin= g=20 over half of the port that flows oil to the cooler.
 
The=20 difference in gaskets, only labeled backwards from your application:
 
Really=20= disappointed by whoever did that to both of us.  The headaches I dealt w= ith=20 trying to solve oil temps over a $3 gasket really gets me.  I've felt y= our=20 pain Nick..
 
Tom=20 McNerney
 
 
 
 
Hello=20 Everyone,

My=20 engine is currently being overhauled. It's a IO-320-B1A in a Lancair 320. It= was=20 fitted with a remote oil filter and the engine shop has shown me something=20= interesting. They say the wrong gasket was fitted and two diversion valves w= ere=20 installed, with the net effect that oil would not have been diverted to the=20= cooler properly.

Here=20 are some pictures I took and what I recollect of the explanation about the o= il=20 system.

In=20 one picture I am holding the oil filter take off housing. The thermostatic v= alve=20 is in the housing; this extends as it gets hot and closes off a hole in the=20= engine back plate to divert the oil through the cooler. You can see that the= =20 gasket cut out does not fit the cut out in the housing; this prevents the va= lve=20 closing the hole fully. Also, the old fashioned viscosity valve was fitted =E2= =80=93 in=20 the other picture this is being held in place with a finger. This also preve= nts=20 the thermostatic valve from extending fully. The viscosity valve was superce= ded=20 by the thermostatic valve ages ago and you should not have both=20 fitted.

Apparently,=20 the result would have been much reduced flow through the oil cooler.<= br style=3D"FONT-SIZE: 12px; FONT-FAMILY: monospace; BACKGROUND-COLOR: rgb(2= 52,252,252)">
(With=20 the oil filter on the engine, a different housing is used; the thermostatic=20= valve comes in from a different direction and these issues do not=20 occur.)

I'm=20 told that this remote filter conversion was fitted exactly according to an S= TC.=20 I have had high oil temperatures with this engine and this looks like the=20= explanation. If anyone has the remote oil filter conversion and is seeing hi= gh=20 oil temperatures it may be worth checking these details.

Yours,

Nick=20 Long
= --Apple-Mail-AEAF7DCD-AB8F-4714-B993-4330518C8180--