X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Sun, 26 Aug 2012 10:54:12 -0400 Message-ID: X-Original-Return-Path: Received: from mail-ob0-f180.google.com ([209.85.214.180] verified) by logan.com (CommuniGate Pro SMTP 6.0c1) with ESMTPS id 5728619 for lml@lancaironline.net; Sat, 25 Aug 2012 11:02:05 -0400 Received-SPF: pass receiver=logan.com; client-ip=209.85.214.180; envelope-from=ronlaughlin@gmail.com Received: by obceq6 with SMTP id eq6so5083351obc.25 for ; Sat, 25 Aug 2012 08:01:29 -0700 (PDT) Received: by 10.60.12.234 with SMTP id b10mr6614406oec.72.1345906889062; Sat, 25 Aug 2012 08:01:29 -0700 (PDT) X-Original-Return-Path: Received: from [10.69.151.190] (mobile-166-147-079-087.mycingular.net. [166.147.79.87]) by mx.google.com with ESMTPS id th3sm12117119obb.6.2012.08.25.08.00.51 (version=TLSv1/SSLv3 cipher=OTHER); Sat, 25 Aug 2012 08:01:28 -0700 (PDT) Subject: Re: [LML] Spiked CHT References: From: Ron Laughlin Content-Type: text/plain; charset=us-ascii X-Mailer: iPhone Mail (9B206) In-Reply-To: X-Original-Message-Id: <8A4BB459-C380-4EA5-956E-8F1A913A8235@gmail.com> X-Original-Date: Sat, 25 Aug 2012 09:59:38 -0500 X-Original-To: Lancair Mailing List Content-Transfer-Encoding: quoted-printable Mime-Version: 1.0 (1.0) More likely a loose sensor connection but check your plugs too. Fine wire Ch= ampions have a bad tendency toward cracked insulators which can turn them in= to "glow" plugs causing pre- ignition. Very bad. Ron On Aug 25, 2012, at 7:56 AM, "Lancair" wrote: > Last week I had been cruising LoP and during the power back for landing > Cyl #3 suddenly jumped 125F and sent the Chelton lady shouting into my > ear. That would not be unusual if I had failed to either further lean > or go full rich but in this case I had leaned and the other 5 cylinders > were OK. I leaned way back and really lost power and then went full > rich, and it finally settled down. On the return flight I reduced power > and carefully kept leaning and had no problem. Yesterday it was deja' > vu all over again. Powered back on approach and only #3 went nutso > until I leaned even more. On the return flight there was no recurrence. >=20 >=20 > Does this sound like a problem with the injector, with the thermocouple, > or ? ? ? >=20 > Robert Simon > ES-P N301ES > (TSIO550) >=20 > -- > For archives and unsub http://mail.lancaironline.net:81/lists/lml/List.htm= l