Return-Path: Sender: (Marvin Kaye) To: lml Date: Thu, 24 Jul 2003 09:38:31 -0400 Message-ID: X-Original-Return-Path: Received: from smtp.bendcable.com ([216.228.160.33] verified) by logan.com (CommuniGate Pro SMTP 4.1) with ESMTP id 2502502 for lml@lancaironline.net; Thu, 24 Jul 2003 08:30:03 -0400 Received: from Ultra2gig (bc122238.bendcable.com [66.220.122.238]) by sm1.bendcable.com (Rockliffe SMTPRA 5.2.5) with ESMTP id for ; Thu, 24 Jul 2003 05:29:21 -0700 From: "Larry Klaas" X-Original-To: "'Lancair Mailing List'" Subject: Hot Desert, Ice, Hot Cylinders X-Original-Date: Thu, 24 Jul 2003 05:29:16 -0700 X-Original-Message-ID: <001801c351df$32c1e2b0$6401a8c0@Ultra2gig> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0019_01C351A4.86630AB0" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.4510 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1165 Importance: Normal In-Reply-To: This is a multi-part message in MIME format. ------=_NextPart_000_0019_01C351A4.86630AB0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable I have over 700 hours and much IMC on my 4-P and ice with associated hot engine problems is the way it worked for me also. I have had over an = inch of ice on my wings and had to power back to under 20 inches MP to avoid overheating and it really gets your attention, once my IAS went below = 120 kts in the flight levels. I have talked to one other 4-P owner with no = hot engine problem in ice and we could never figure out why me and not him. = I did get a K&N filter and enlarged the opening into the air filter and = that did seem to help by keeping my alt air door from opening. It may be = your alt air door needs work. I did not have a manual alt air door control = on the cabin and would have had I to do it over again. The issue I don't = think is inlet cowl air but rather the induction air from the cowl into your engine when the alt air door opens after your air cleaner ices over. I = sold my piston and am building a turbine so I quit working the problem, but = Dale Sholtz of Helena Montana has a 4-P with over 1000 hours and he has been = iced up many times with no hot engine problems. Another 4-P owner, Gene = Hughes of Butte MT has the same problem as you had and I had, so go figure. =20 =20 If you had a manual alt air controller you could figure out if the = problem is hot cowl air by manually opening the alt air door to see how it = performs. Once climbing out of LA I had hot engine problems and only very light = ice on my wings, perhaps 1/8 inch. That would seem to indicate its not the induction cooling air that is the problem, rather the ice covers up the = air cleaner, the alt air door opens, hot cowl air then goes into your = engine, and then you have the hot engine problems. =20 I experienced what you did many times, and its no fun. =20 Larry Klaas 2625 NW Ordway Ave Bend, OR 97701-5497 Tel: 541-388-2420 Fax: 413-581-0178 LDK@bendcable.com =20 =20 ------=_NextPart_000_0019_01C351A4.86630AB0 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable

I have over 700 = hours and much IMC on my 4-P and ice with associated hot engine problems is the = way it worked for me also. I have had over an inch of ice on my wings and = had to power back to under 20 inches MP to avoid overheating and it really gets = your attention, once my IAS went below 120 kts in the flight levels. I have talked = to one other 4-P owner with no hot engine problem in ice and we could never = figure out why me and not him. I did get a K&N filter and enlarged the = opening into the air filter and that did seem to help by keeping my alt air door = from opening. It may be your alt air door needs work. I did not = have a manual alt air door control on the cabin and would have had I to do it = over again. The issue I don’t think is inlet cowl air but rather = the induction air from the cowl into your engine when the alt air door opens = after your air cleaner ices over. I sold my piston and am building a = turbine so I quit working the problem, but Dale Sholtz of Helena Montana has a 4-P = with over 1000 hours and he has been iced up many times with no hot engine problems. Another 4-P owner, Gene Hughes of Butte MT<= font size=3D2 color=3Dnavy face=3DArial> has the same problem as you had and I had, so go = figure.

If you had a manual alt air = controller you could figure out if the problem is hot cowl air by manually opening the = alt air door to see how it performs. Once climbing out of LA I had hot = engine problems and only very light ice on my wings, perhaps 1/8 inch. = That would seem to indicate its not the induction cooling air that is the problem, = rather the ice covers up the air cleaner, the alt air door opens, hot cowl air = then goes into your engine, and then you have the hot engine = problems.

I experienced what you did many = times, and its no fun.

Larry = Klaas

2625 NW Ordway = Ave

Bend= , OR 97701-5497<= /font>

Tel: = 541-388-2420 Fax: 413-581-0178

LDK@bendcable.com<= /span>

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