X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Sat, 25 Aug 2012 08:56:06 -0400 Message-ID: X-Original-Return-Path: Received: from [70.62.14.124] (HELO ustek.com) by logan.com (CommuniGate Pro SMTP 6.0c1) with ESMTP id 5727037 for lml@lancaironline.net; Fri, 24 Aug 2012 08:58:01 -0400 Received-SPF: pass receiver=logan.com; client-ip=70.62.14.124; envelope-from=r.simon@ustek.com Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Subject: Spiked CHT X-MimeOLE: Produced By Microsoft Exchange V6.5 X-Original-Date: Fri, 24 Aug 2012 08:53:16 -0400 X-Original-Message-ID: X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: Spiked CHT Thread-Index: Ac2B923V6rpXHKVPQCCzl4L9pcXjEg== From: "Lancair" X-Original-Sender: "Robert Simon" X-Original-To: "Lancair Mailing List" 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. Does this sound like a problem with the injector, with the thermocouple, or ? ? ? Robert Simon ES-P N301ES (TSIO550)