X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Wed, 20 May 2009 14:58:31 -0400 Message-ID: X-Original-Return-Path: Received: from rv-out-0506.google.com ([209.85.198.226] verified) by logan.com (CommuniGate Pro SMTP 5.2.14) with ESMTP id 3648198 for lml@lancaironline.net; Wed, 20 May 2009 11:46:45 -0400 Received-SPF: none receiver=logan.com; client-ip=209.85.198.226; envelope-from=mickguinn@clearwire.net Received: by rv-out-0506.google.com with SMTP id f9so170825rvb.7 for ; Wed, 20 May 2009 08:46:09 -0700 (PDT) Received: by 10.141.122.1 with SMTP id z1mr692165rvm.275.1242834369320; Wed, 20 May 2009 08:46:09 -0700 (PDT) X-Original-Return-Path: Received: from RSMPC (75-93-64-51.bnd.clearwire-dns.net [75.93.64.51]) by mx.google.com with ESMTPS id b8sm3698999rvf.14.2009.05.20.08.46.07 (version=SSLv3 cipher=RC4-MD5); Wed, 20 May 2009 08:46:07 -0700 (PDT) X-Original-Message-ID: From: "Mick Guinn" X-Original-To: "Lancair Mailing List" References: In-Reply-To: Subject: Re: [LML] Temperature spike X-Original-Date: Wed, 20 May 2009 08:46:22 -0700 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0080_01C9D927.73EAF620" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Windows Mail 6.0.6001.18000 X-MimeOLE: Produced By Microsoft MimeOLE V6.0.6001.18049 This is a multi-part message in MIME format. ------=_NextPart_000_0080_01C9D927.73EAF620 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Are you sure of your indications? Could be electrical and can be checked with steam gauges. What does the EGT do during these episodes? Mick Guinn Right Seat Mechanical 541-419-8661 ----- Original Message -----=20 From: Art Bertolina=20 To: lml@lancaironline.net=20 Sent: Tuesday, May 19, 2009 5:39 PM Subject: [LML] Temperature spike Had an interesting thing happen on a flight from AZ to So Calif. Cruising at 14500ft had been in cruise about 40 min. was running 2600RPM 31" 18GPH about 75 deg. LOP. The temp on #1 cylinder went from 315 to 500 oil pressure dropped to 15 oil temp went from 178 to 197. I went full rich reduced power to 17" and=20 went to nearest airport to land, this action brought=20 temps back into normal as well as oil pressure to 38. On the ground I removed the top cowl to be sure there where no oil leaks and found non. Refowled plane=20 took off and did some laps in the pattern everything normal started home and at 8500 ft and 30 minutes later same thing CHT 425 oil pressure 21 oil temp 174. I had been flying at = 2500/22". I reduced power again and temps=20 came back down, I continued home. I since have removed the cylinder and have had it inspected by 2 competent mechanics and no damage. The engine has 260hr.s, does anyone have any ideas as to the problem?. Your thoughts and ideas would be appreciated Art ------=_NextPart_000_0080_01C9D927.73EAF620 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Are you sure of your indications?
Could be electrical and can be checked with steam=20 gauges.
 
What does the EGT do during these = episodes?
 
Mick Guinn
Right Seat=20 Mechanical
541-419-8661
----- Original Message -----
From:=20 Art Bertolina
Sent: Tuesday, May 19, 2009 = 5:39 PM
Subject: [LML] Temperature = spike

Had an interesting thing happen on a = flight=20 from AZ to
So Calif. Cruising at 14500ft had = been in cruise=20 about
40 min. was running 2600RPM 31"  = 18GPH=20 about
75 deg. LOP. The temp on #1 cylinder = went from=20 315
to 500 oil pressure dropped to 15 oil = temp went=20 from
178 to 197. I went full rich reduced = power to 17"=20 and
went to nearest airport to = land, this action=20 brought
temps back into normal as well as oil = pressure to=20 38.
On the ground I removed the top cowl = to be sure=20 there
where no oil leaks and found non. = Refowled plane=20
took off and did some laps in the = pattern=20 everything
normal started home and at 8500 ft = and 30 minutes=20 later
same thing CHT 425 oil pressure 21 = oil temp 174.=20 I had been flying at 2500/22". I reduced power again and temps =
came back down, I continued home. I = since have=20 removed
the cylinder and have had it = inspected by 2=20 competent
mechanics and no damage. The = engine has=20 260hr.s, does
anyone have any ideas as to the = problem?. Your=20 thoughts
and ideas would be = appreciated
Art
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