X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Mon, 08 Oct 2007 09:46:15 -0400 Message-ID: X-Original-Return-Path: Received: from elasmtp-dupuy.atl.sa.earthlink.net ([209.86.89.62] verified) by logan.com (CommuniGate Pro SMTP 5.1.12) with ESMTP id 2374635 for lml@lancaironline.net; Mon, 08 Oct 2007 00:51:25 -0400 Received-SPF: none receiver=logan.com; client-ip=209.86.89.62; envelope-from=douglasbrunner@earthlink.net DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=dk20050327; d=earthlink.net; b=pI2KNVobVk9snHKSQS+IFSXJ7fHb6XqPz+OFaMni2HxSMNp/CeBfbjr5GDqf2CKG; h=Received:Message-ID:From:To:References:Subject:Date:MIME-Version:Content-Type:X-Priority:X-MSMail-Priority:X-Mailer:X-MimeOLE:X-ELNK-Trace:X-Originating-IP; Received: from [74.93.196.177] (helo=DFWK3391) by elasmtp-dupuy.atl.sa.earthlink.net with asmtp (Exim 4.34) id 1IekZr-0000Z2-B2 for lml@lancaironline.net; Mon, 08 Oct 2007 00:50:47 -0400 X-Original-Message-ID: <001d01c80966$c8379860$19d0a60a@DFWK3391> From: "Douglas Brunner" X-Original-To: "Lancair Mailing List" References: Subject: Re: [LML] Re: crack in oil cooler X-Original-Date: Mon, 8 Oct 2007 00:50:42 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_001A_01C80945.40A074B0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.3138 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3138 X-ELNK-Trace: ad85a799c4f5de37c2eb1477c196d22294f5150ab1c16ac01a238acc8405a5b0d60828a03a576af11417f2d42640e7c9350badd9bab72f9c350badd9bab72f9c X-Originating-IP: 74.93.196.177 This is a multi-part message in MIME format. ------=_NextPart_000_001A_01C80945.40A074B0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable I had a similar problem in my Mooney (IO-550). The service advisor at the Mooney shop also said that he had seen it quite frequently. It was sent for repair and after that no problems for many hours. D. Brunner ----- Original Message -----=20 From: marv@lancair.net=20 To: lml@lancaironline.net=20 Sent: Sunday, October 07, 2007 10:32 PM Subject: [LML] Re: crack in oil cooler Posted for Art Jensen : IO-550 operators, See attached photo. I found this crack in the oil cooler after 133 hours. A conversation with an A&P indicates that he sees a lot of cracks in these coolers. I didn't ask for his definition of "a lot."=20 My engine is out of warranty, however I have been discussing the problem with Continental and trying to get them to cover the cost for a new cooler. I have also asked Tech Support a question that required them to seek an engineer for input. But I am still waiting for an answer. Maybe someone on LML can answer the question. If you look into the cavity where the oil temp probe would fit you notice a milled hole that is offset from the hole that takes the oil into the engine case.=20 Looking from the engine case side you can see that the milled hole was drilled only 1/2 inch or so until it met the hole drilled from the other direction so that they are offset. My question to Tech Support is why is this hole offset? Is it meant to be a restriction to oil flow back into the case? I know my description isn't very clear. You may have to see the oil cooler to understand what I am asking. Does anyone have any idea why this hole is drilled to be offset? Also would there be any harm in grinding this offset from both sides to help the oil flow better? Art Jensen Legacy 927J -------------------------------------------------------------------------= ----- -- For archives and unsub = http://mail.lancaironline.net:81/lists/lml/List.html ------=_NextPart_000_001A_01C80945.40A074B0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
I had a similar problem in my Mooney=20 (IO-550).  The service advisor
at the Mooney shop also said that he = had seen it=20 quite frequently.  It
was sent for repair and after that no = problems for=20 many hours.
 
D. Brunner
----- Original Message -----
From:=20 marv@lancair.net=20
Sent: Sunday, October 07, 2007 = 10:32=20 PM
Subject: [LML] Re: crack in oil = cooler

Posted for Art Jensen = <flycassutts@yahoo.com>:
<= BR>IO-550=20 operators,

See attached photo. I found this crack in the = oil
cooler=20 after 133 hours. A conversation with an A&P
indicates that he = sees a=20 lot of cracks in these
coolers. I didn't ask for his definition of = "a lot."=20
My engine is out of warranty, however I have been
discussing = the=20 problem with Continental and trying to
get them to cover the cost = for a new=20 cooler.

I have also asked Tech Support a question = that
required them=20 to seek an engineer for input. But I am
still waiting for an = answer. Maybe=20 someone on LML can
answer the question.

If you look into the = cavity=20 where the oil temp probe
would fit you notice a milled hole that is = offset=20 from
the hole that takes the oil into the engine case.
Looking = from the=20 engine case side you can see that the
milled hole was drilled only = 1/2 inch=20 or so until it
met the hole drilled from the other direction so=20 that
they are offset. My question to Tech Support is why
is this = hole=20 offset? Is it meant to be a restriction
to oil flow back into the = case? I=20 know my description
isn't very clear. You may have to see the oil=20 cooler
to understand what I am asking.

Does anyone have any = idea why=20 this hole is drilled to
be offset? Also would there be any harm in=20 grinding
this offset from both sides to help the oil=20 flow
better?

Art Jensen
Legacy 927J

--
For archives and unsub=20 = http://mail.lancaironline.net:81/lists/lml/List.html
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