X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Fri, 07 Sep 2007 17:48:25 -0400 Message-ID: X-Original-Return-Path: Received: from mtao03.charter.net ([209.225.8.188] verified) by logan.com (CommuniGate Pro SMTP 5.1.12) with ESMTP id 2318107 for lml@lancaironline.net; Fri, 07 Sep 2007 15:22:07 -0400 Received-SPF: pass receiver=logan.com; client-ip=209.225.8.188; envelope-from=LHenney@charter.net Received: from aarprv03.charter.net ([10.20.200.73]) by mtao03.charter.net (InterMail vM.7.08.02.00 201-2186-121-20061213) with ESMTP id <20070907192121.YCOS10962.mtao03.charter.net@aarprv03.charter.net> for ; Fri, 7 Sep 2007 15:21:21 -0400 Received: from LHenneyLaptop ([68.116.130.237]) by aarprv03.charter.net with ESMTP id <20070907192120.OZJ21339.aarprv03.charter.net@LHenneyLaptop> for ; Fri, 7 Sep 2007 15:21:20 -0400 From: "LHenney" X-Original-To: "Lancair List" Subject: FW: [LML] 360 engine baffling installation X-Original-Date: Fri, 7 Sep 2007 15:21:24 -0400 X-Original-Message-ID: <01a401c7f184$48499f30$640fa8c0@LHenneyLaptop> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_01A5_01C7F162.C137FF30" X-Mailer: Microsoft Office Outlook 11 Thread-Index: AcfvxLx1y5/fIWDETuiU4n6BaQTWmABvqfcw X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3138 X-Chzlrs: 0 This is a multi-part message in MIME format. ------=_NextPart_000_01A5_01C7F162.C137FF30 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Roger, =20 Who made the plenum/duct for you ??=20 =20 I made the duct for me. =20 =20 I lined the upper cowl and engine with painters plastic and shot in a = can of X30 expanding foam to get a mold. This allowed me to put up a single = bid (after aerodynamic contour whittling down the foam). This flash bid was them built up with roughly 4 bid all around and 6 bid at attach points. Some people use high temp epoxy. I used regular jeffco and have had = minimal repairs =20 Larry =20 _____ =20 From: Roger Iverin [mailto:roger@iverin.com]=20 Sent: Tuesday, September 04, 2007 8:54 AM To: lml@lancaironline.net Subject: Re: [LML] 360 engine baffling installation =20 Roger Iverin=20 On Mon, 03 Sep 2007 13:00:00 -0400, LHenney wrote=20 > Peter,=20 > =20 > I believe about =BD=94 would be adequate for 90% of your baffling = gaps. However, during engine start and shut down you will still get an = occasional contact of metal to glass. This has spider cracked the gel coat on = numerous cowls (over the years). Perhaps =BE=94 would have been adequate. = However, around the top of number 1 & 2 cylinders I did not have that much clearance. ). = I built my baffles twice before shifting to a cooling plenum (duct) out of frustration with that contact damage. In addition to better cooling ( = big factor!) , the plenum allowed rounded edges, smoother contact surfaces, = and overall less maintenance.=20 > =20 > Larry=20 > N360LH=20 --=20 Open WebMail Project (http://openwebmail.org ) = ------=_NextPart_000_01A5_01C7F162.C137FF30 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Roger,

Who made the plenum/duct for you ?? =

I made the duct for me.=A0 =

I lined the upper cowl and engine = with painters plastic and shot in a can of X30 expanding foam to get a mold.=A0 This = allowed me to put up a single bid (after aerodynamic contour whittling down the = foam).=A0 This flash bid was them built up with roughly 4 bid all around and 6 bid = at attach points.=A0 Some people use high temp epoxy.=A0 I used regular = jeffco and have had minimal repairs

Larry

From: Roger = Iverin [mailto:roger@iverin.com]
Sent: Tuesday, September = 04, 2007 8:54 AM
To: = lml@lancaironline.net
Subject: Re: [LML] 360 = engine baffling installation

Roger Iverin

On Mon, 03 Sep 2007 13:00:00 -0400, LHenney wrote
> Peter,
>
> I believe about =BD” would be adequate for 90% of your baffling gaps. = However, during engine start and shut down you will still get an occasional contact of = metal to glass. This has spider cracked the gel coat on numerous cowls (over the = years). Perhaps =BE” would have been adequate. However, around the top of = number 1 & 2 cylinders I did not have that much clearance. ). I built my = baffles twice before shifting to a cooling plenum (duct) out of frustration with = that contact damage. In addition to better cooling ( big factor!) , the = plenum allowed rounded edges, smoother contact surfaces, and overall less = maintenance.
>
> Larry
> N360LH

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