Return-Path: Sender: (Marvin Kaye) To: lml Date: Mon, 23 Sep 2002 13:55:21 -0400 Message-ID: X-Original-Return-Path: Received: from [208.26.246.18] (HELO dewey.Cadwell.cadwell.com) by logan.com (CommuniGate Pro SMTP 4.0b8) with ESMTP id 1750595 for lml@lancaironline.net; Mon, 23 Sep 2002 13:09:23 -0400 content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Subject: TSIO 550 E1B backfires X-MimeOLE: Produced By Microsoft Exchange V6.0.4712.0 X-Original-Date: Mon, 23 Sep 2002 10:08:32 -0700 X-Original-Message-ID: X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: TSIO 550 E1B backfires Thread-Index: AcJjJMUAQ1iby2lrTgu7GPERZH/MEQ== From: "Carl Cadwell" X-Original-To: My TSIO 550 with GAMI injectors, Slick Mags has backfired 4 times recently. In cruise at FL230-250, 2400 rpm, MP 29", 70 degrees LOP. Quite unnerving. I suspected a spark plug or wire. I flew it to 8000', 29", 2400 rpm, and LOP, then right mag and left mag. I repeated it at 2500 rpm and 31", LOP (I never run at this power setting LOP) The engine did not backfire or miss as I would expect with a bad Plug or wire. The right mag ran a little bit rough. The left mag was smooth. Any suggestion what to do next? I am committed to aggressively pursue this. =20 Carl Cadwell, IVP, 235 hours.=20