X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Wed, 17 Oct 2012 08:43:30 -0400 Message-ID: X-Original-Return-Path: Received: from carbinge.com ([69.5.27.218] verified) by logan.com (CommuniGate Pro SMTP 6.0c2) with SMTP id 5815130 for lml@lancaironline.net; Tue, 16 Oct 2012 23:57:36 -0400 Received-SPF: none receiver=logan.com; client-ip=69.5.27.218; envelope-from=jbarrett@carbinge.com Received: (qmail 31053 invoked from network); 17 Oct 2012 03:57:02 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; h=X-Originating-IP:Reply-To:From:To:References:In-Reply-To:Subject:Date:Message-ID:MIME-Version:Content-Type:X-Mailer:Thread-Index:Content-Language; s=default; d=carbinge.com; b=ZGFUAzPdD7L6RGUF9g+s+IPi4cXuc3zJ1dKe9E3Wx4d5oXTfyZkVIft9Iw1ALSq91XMo/tyxP3+7xkwIN+UmVyXTM2h+MBcSdkJob+VyO5exWWqJECq2jlCm67LulalcftzypR/7TvaAcrEdFZukurm3auzP1GfE8gR5yiKDWq4=; X-Originating-IP: [66.235.58.245] Reply-To: From: "John Barrett" X-Original-To: "'Lancair Mailing List'" References: In-Reply-To: Subject: RE: [LML] IO550-N Leaky valve covers X-Original-Date: Tue, 16 Oct 2012 20:57:00 -0700 X-Original-Message-ID: <032a01cdac1b$767d25a0$637770e0$@com> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_032B_01CDABE0.CA1E4DA0" X-Mailer: Microsoft Office Outlook 12.0 Thread-Index: Ac2sDdfgppON3LMETZ6627nLzAjBDwADSZKA Content-Language: en-us This is a multi-part message in MIME format. ------=_NextPart_000_032B_01CDABE0.CA1E4DA0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Hi Adam, First, Congratulations on your engagement. Saw the news on the LOBO news flash. Second, I had a similar experience of leaking valve covers. I had the silicon gaskets, but no matter what I did I seemed to keep getting the leaks. Turns out that was not the source of the leaking oil. Instead a couple of the valve guide tubes had leaks and those O ring gaskets had to be replaced. I chased the leaks for weeks until I finally had a mechanic look at it and he discovered the true source. Good luck, John Barrett From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of Adam Molny Sent: Tuesday, October 16, 2012 7:19 PM To: lml@lancaironline.net Subject: [LML] IO550-N Leaky valve covers Even after replacement, my valve cover gaskets leak. I am using the stock TCM p/n 655705A gaskets, which appear to be a heavy paper impregnated with something. I've re-tightened the valve cover screws, but the leaks keep coming back, especially on the exhaust valve covers. Will the gaskets eventually compress and seal properly? Should I try gasket sealer? Has anyone had better luck with aftermarket silicone gaskets? Thanks, Adam Molny Lancair Legacy N181AM ------=_NextPart_000_032B_01CDABE0.CA1E4DA0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Hi Adam,

First, Congratulations on your engagement. Saw the news on the = LOBO news flash.

Second, I had a similar experience of leaking valve covers. I = had the silicon gaskets, but no matter what I did I seemed to keep = getting the leaks. Turns out that was not the source of the = leaking oil. Instead a couple of the valve guide tubes had leaks = and those O ring gaskets had to be replaced. I chased the leaks = for weeks until I finally had a mechanic look at it and he discovered = the true source.

Good luck,

John Barrett

From:= = Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of = Adam Molny
Sent: Tuesday, October 16, 2012 7:19 = PM
To: lml@lancaironline.net
Subject: [LML] IO550-N = Leaky valve covers

Even after replacement, my valve cover = gaskets leak. I am using the stock TCM p/n 655705A gaskets, which appear = to be a heavy paper impregnated with something. I’ve re-tightened = the valve cover screws, but the leaks keep coming back, especially on = the exhaust valve covers. Will the gaskets eventually compress and seal = properly? Should I try gasket sealer? Has anyone had better luck with = aftermarket silicone gaskets?

Thanks,

Adam = Molny

Lancair Legacy = N181AM

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