X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Mon, 20 Aug 2012 09:39:35 -0400 Message-ID: X-Original-Return-Path: Received: from elasmtp-galgo.atl.sa.earthlink.net ([209.86.89.61] verified) by logan.com (CommuniGate Pro SMTP 6.0c1) with ESMTP id 5719335 for lml@lancaironline.net; Mon, 20 Aug 2012 08:11:44 -0400 Received-SPF: none receiver=logan.com; client-ip=209.86.89.61; envelope-from=colyncase@earthlink.net DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=dk20050327; d=earthlink.net; b=J27dZHZs8WvSB7h1AeY8PfFoxRwWNhncHt55mtGOU5oaQfcKRufyc51q1UOEPp9S; h=Received:From:Mime-Version:Content-Type:Subject:Date:In-Reply-To:To:References:Message-Id:X-Mailer:X-ELNK-Trace:X-Originating-IP; Received: from [70.16.215.15] (helo=[192.168.1.24]) by elasmtp-galgo.atl.sa.earthlink.net with esmtpa (Exim 4.67) (envelope-from ) id 1T3Qos-0008GA-Br for lml@lancaironline.net; Mon, 20 Aug 2012 08:10:58 -0400 From: Colyn Case Mime-Version: 1.0 (Apple Message framework v1084) Content-Type: multipart/alternative; boundary=Apple-Mail-237--62245758 Subject: Re: [LML] Pictures from Cylinder no2 ..what the heck?? X-Original-Date: Mon, 20 Aug 2012 08:10:57 -0400 In-Reply-To: X-Original-To: "Lancair Mailing List" References: X-Original-Message-Id: X-Mailer: Apple Mail (2.1084) X-ELNK-Trace: 63d5d3452847f8b1d6dd28457998182d7e972de0d01da9406393fb38d5e62f3e2b26d09657aaea57350badd9bab72f9c350badd9bab72f9c350badd9bab72f9c X-Originating-IP: 70.16.215.15 --Apple-Mail-237--62245758 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii Ronald, a few questions: - do you want to post your engine monitor data? - how many hours were on the engine before you got it? - do you know where cyl 2 peaks vs. the other cylinders? Colyn On Aug 19, 2012, at 9:36 AM, Ronald STEVENS wrote: Hello guys Well, this is one the reasons why I am thinking of replacing my engine = with a turbine lol Anyway, we are scratching our heads here. We found (looks like lead) = deposits inside the cylinder and on top of the pistons. It is pretty = soft, some parts are harder (probably baked) and you can actually take a = harder sponge and start cleaning lol But why?? Why did this happened?? I mean I am thinking I am always = driving my engine according to the 'gospels', Full rich in climb and = take off, never over powering (using MAP 31-34 in climb), then level = off, go back to MAP29, lean to 16.5, bump it up to MAP31-32 with approx. = 18GPH/2500 RPM Always checking for CHT, (cruise temps are approx. 370), TIT=3D1610 So.....then suddenly my EGT (not CHT) starting to act up, and showing a = HOT warning, me adding mixture to full rich, EGT back to normal, this = happened twice on the same cylinder, so I requested a borescope and = found this.....so we pulled the jug. Now I can pull them all, clean them all, and wait for the next time?? = Why could something like this happen? (I even heard someone telling me = that I was leaning too much??) Any idea ?? Thanks -- Ronald ps Pict 3 showed some of the stuff that we were able to scrape off, and = in the upper left corner you see the hot spots, they are colored but the = 'skin' feels the same, so it looks like material was coming off or = burned in, but it is not, it is the deposit on top.=20 >=20 > > =20 >=20 >=20 > > > > --Apple-Mail-237--62245758 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=us-ascii

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