X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from ironmaiden.mail.utexas.edu ([128.83.32.53] verified) by logan.com (CommuniGate Pro SMTP 5.1.2) with ESMTP id 1561087 for flyrotary@lancaironline.net; Mon, 13 Nov 2006 10:47:12 -0500 Received-SPF: none receiver=logan.com; client-ip=128.83.32.53; envelope-from=mark.steitle@austin.utexas.edu DomainKey-Signature: s=main; d=austin.utexas.edu; c=nofws; q=dns; b=f/T4Yy4AUFZRi3eYkAN7LGzdjjJrPs9JjKHP9Pm47zAXctX32I5KMAaJFAnD44rVqa5s825T40ip/lyu66POlZQo2eDrfLItvbXcXU9XKMydcuVX9LLiOsWZb4yFHAn/iSm30LNX6R/0RTBAxQMcEUC+q8NFo4DeM9JLhmgsvO0=; Received: from exb01.austin.utexas.edu (HELO MAIL01.austin.utexas.edu) ([129.116.87.142]) by ironmaiden.mail.utexas.edu with ESMTP; 13 Nov 2006 09:46:52 -0600 Received: from MAIL02.austin.utexas.edu ([129.116.87.143]) by MAIL01.austin.utexas.edu with Microsoft SMTPSVC(6.0.3790.1830); Mon, 13 Nov 2006 09:46:51 -0600 X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Subject: RE: [FlyRotary] Cleaning spark plugs Date: Mon, 13 Nov 2006 09:46:51 -0600 Message-ID: <5B59870CA143DD408BD6279374B74C8B0230C1ED@MAIL02.austin.utexas.edu> In-Reply-To: X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [FlyRotary] Cleaning spark plugs Thread-Index: AccHM3iLiInbsvuvR++pIhKOn5OI3wABwRCQ From: "Mark R Steitle" To: "Rotary motors in aircraft" Return-Path: mark.steitle@austin.utexas.edu X-OriginalArrivalTime: 13 Nov 2006 15:46:51.0777 (UTC) FILETIME=[EFE77710:01C7073A] Dennis,=20 For a "quick-and-dirty" cleanup, I've sprayed fouled plugs with either brake cleaner or carburetor cleaner, then blew them out with compressed air before it dries. This usually gets them sparking again. It is amazing how much black gunk gets flushed out. =20 Mark S. -----Original Message----- From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Dennis Haverlah Sent: Monday, November 13, 2006 8:55 AM To: Rotary motors in aircraft Subject: [FlyRotary] Cleaning spark plugs I have been running my RX -8 at low power settings while finishing up=20 the engine install details. Recently it ran very rough and changing the plugs fixed the problem. The plugs that produced the rough running=20 engine are the RE7A L and RE9BT iridium plugs that are standard with the Renessis car. These plugs have a thin layer of slightly moist carbon=20 on the porcelain. Any suggestions for cleaning? Can I use a standard=20 air operated blaster like is used on A/C plugs? I believe these plugs=20 cost around $35! Should I be using the different plugs for the Renessis in the A/C? Ed - Thanks for the engine data from your last flight - I plan on=20 running some full power static tests on my A/C later this week. Dennis H. -- Homepage: http://www.flyrotary.com/ Archive and UnSub: http://mail.lancaironline.net/lists/flyrotary/