X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Sat, 22 Apr 2006 20:03:18 -0400 Message-ID: X-Original-Return-Path: Received: from imo-d23.mx.aol.com ([205.188.139.137] verified) by logan.com (CommuniGate Pro SMTP 5.0.9) with ESMTP id 1076963 for lml@lancaironline.net; Sat, 22 Apr 2006 19:03:03 -0400 Received-SPF: pass receiver=logan.com; client-ip=205.188.139.137; envelope-from=VTAILJEFF@aol.com Received: from VTAILJEFF@aol.com by imo-d23.mx.aol.com (mail_out_v38_r7.5.) id q.3c5.f317a3 (14501) for ; Sat, 22 Apr 2006 19:02:19 -0400 (EDT) From: VTAILJEFF@aol.com X-Original-Message-ID: <3c5.f317a3.317c0ffb@aol.com> X-Original-Date: Sat, 22 Apr 2006 19:02:19 EDT Subject: Re: [LML] More on CHTs X-Original-To: lml@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="-----------------------------1145746938" X-Mailer: 9.0 SE for Windows sub 5021 X-Spam-Flag: NO -------------------------------1145746938 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit In a message dated 4/22/2006 4:18:04 PM Central Standard Time, elippse@sbcglobal.net writes: For some reason, pilots seem to think that operating their engines at low CHTs is beneficial. It isn't! When the pistons operate at lower temperatures than their design value, the piston does not expand sufficiently to reduce clearances, thus promoting blow by and piston slap. Have you attended the Advanced Pilot Seminar or studied the material presented by John Deakin at _www.avweb.com_ (http://www.avweb.com) ? Your opinions about CHT's are at odds with testing done by George Braly and GAMI. BTW, what is the "design value" you cite above? Regards, Jeff -------------------------------1145746938 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable
In a message dated 4/22/2006 4:18:04 PM Central Standard Time,=20 elippse@sbcglobal.net writes:
<= FONT=20 style=3D"BACKGROUND-COLOR: transparent" face=3DArial color=3D#000000 size= =3D2>For some=20 reason, pilots seem to think that operating their engines at low CHTs is=20 beneficial. It isn't! When the pistons operate at lower temperatures than=20 their design value, the piston does not expand sufficiently to reduce=20 clearances, thus promoting blow by and piston slap.
 
Regards,
 
Jeff
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