Return-Path: Received: from [129.116.87.171] (HELO MAIL01.austin.utexas.edu) by logan.com (CommuniGate Pro SMTP 4.2.8) with ESMTP id 660001 for flyrotary@lancaironline.net; Sat, 05 Feb 2005 06:47:45 -0500 Received-SPF: none receiver=logan.com; client-ip=129.116.87.171; envelope-from=mark.steitle@austin.utexas.edu X-MimeOLE: Produced By Microsoft Exchange V6.5.7226.0 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="----_=_NextPart_001_01C50B78.6FB84275" Subject: RE: [FlyRotary] Re: FW: Re: Plugs and Mags Date: Sat, 5 Feb 2005 05:47:14 -0600 Message-ID: <87DBA06C9A5CB84B80439BA09D86E69E6CB5B6@MAIL01.austin.utexas.edu> X-MS-Has-Attach: X-MS-TNEF-Correlator: <87DBA06C9A5CB84B80439BA09D86E69E6CB5B6@MAIL01.austin.utexas.edu> Thread-Topic: [FlyRotary] Re: FW: Re: Plugs and Mags Thread-Index: AcUDCbe/3YV/ca0CT4Sg8kbt8lh2BQIbZ63e From: "Mark R Steitle" To: "Rotary motors in aircraft" This is a multi-part message in MIME format. ------_=_NextPart_001_01C50B78.6FB84275 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable -----Original Message----- From: Rotary motors in aircraft on behalf of WRJJRS@aol.com Sent: Tue 1/25/2005 12:13 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: FW: Re: Plugs and Mags =20 Ed, Do you know what type of plugs Tracy uses, el-cheapo or platinum? You said that he runs mo-gas so I assume he doesn't have the lead-fouling problem you and others have. So, I assume Tracy's plugs are actually worn out after 100 hours? If that's the case, it seems that the platinum, or iridium plugs might give longer life. Mark S. Mark, A comment bearing on all the "fine wire" plugs. If you use coils = with dual leads,(two wires out), don't use them. Tracy is now suggesting = the LS1 coils which are single output coils. Several of the = same-time-fire systems use the dual lead coils. The problem is that one = plug fires BACKWARD arcing from the side wire to the center electrode. = The center electrode wasn't intended to be the receiving end of the arc. When I worked for Kawasaki on bikes they found the platinum plugs = started out great but failed SOONER due to the center electrode being = eroded and mushroomed. Lead effects can't do anything but make this = worse. Motorcycles have used the wasted spark on exhaust stroke forever = to prevent the need for a high-tension distributor. The secondary of the = coil "floats". It isn't grounded. Both plugs are needed to complete the = circuit. Bill Jepson Bill, Sorry for the delayed response, but this message got lost in the pile of = stuff on oil pans and remote oil filters. =20 Good point on the dual tower coils, I never would have thought about the = electrodes getting mushroomed. Anyway, what I would like to know is, if = you're running LS1 coils, will the platinum or iridium plugs perform any = better than the el-cheapo plugs? Has anyone tried both types with LS1 = coils? =20 Mark S. ------_=_NextPart_001_01C50B78.6FB84275 Content-Type: application/ms-tnef; name="winmail.dat" Content-Transfer-Encoding: base64 eJ8+IhALAQaQCAAEAAAAAAABAAEAAQeQBgAIAAAA5AQAAAAAAADoAAEIgAcAGAAAAElQTS5NaWNy b3NvZnQgTWFpbC5Ob3RlADEIAQ2ABAACAAAAAgACAAEEgAEAKwAAAFJFOiBbRmx5Um90YXJ5XSBS ZTogRlc6IFJlOiBQbHVncyBhbmQgTWFncwCUDQEFgAMADgAAANUHAgAFAAUALwAOAAYAKwEBIIAD AA4AAADVBwIABQAFAC8ADgAGACsBAQmAAQAhAAAAQTNERDgxMTgyNzc1QkI0MDk0NjY2Mzc2NjEy N0E3Q0IABwcBA5AGAIAMAAA4AAAAAwAmAAAAAAADADYAAAAAAEAAOQB1QrhveAvFAR4APQABAAAA BQAAAFJFOiAAAAAAAgFHAAEAAAAvAAAAYz11czthPSA7cD1BVVNUSU47bD1NQUlMMDEtMDUwMjA1 MTE0NzE0Wi0zNDUzOAAAHgBJAAEAAAAnAAAAW0ZseVJvdGFyeV0gUmU6IEZXOiBSZTogUGx1Z3Mg YW5kIE1hZ3MAAEAATgCAs46hCQPFAR4AWgABAAAAGgAAAFJvdGFyeSBtb3RvcnMgaW4gYWlyY3Jh ZnQAAAACAVsAAQAAAFMAAAAAAAAAgSsfpL6jEBmdbgDdAQ9UAgAAAABSb3RhcnkgbW90b3JzIGlu IGFpcmNyYWZ0AFNNVFAAZmx5cm90YXJ5QGxhbmNhaXJvbmxpbmUubmV0AAACAVwAAQAAACEAAABT TVRQOkZMWVJPVEFSWUBMQU5DQUlST05MSU5FLk5FVAAAAAAeAF0AAQAAAA8AAABXUkpKUlNAYW9s LmNvbQAAAgFeAAEAAAA7AAAAAAAAAIErH6S+oxAZnW4A3QEPVAIAAAAAV1JKSlJTQGFvbC5jb20A U01UUABXUkpKUlNAYW9sLmNvbQAAAgFfAAEAAAAUAAAAU01UUDpXUkpKUlNAQU9MLkNPTQAeAGYA AQAAAAUAAABTTVRQAAAAAB4AZwABAAAAHAAAAGZseXJvdGFyeUBsYW5jYWlyb25saW5lLm5ldAAe AGgAAQAAAAUAAABTTVRQAAAAAB4AaQABAAAADwAAAFdSSkpSU0Bhb2wuY29tAAAeAHAAAQAAACcA AABbRmx5Um90YXJ5XSBSZTogRlc6IFJlOiBQbHVncyBhbmQgTWFncwAAAgFxAAEAAAAbAAAAAcUD Cbe/3YV/ca0CT4Sg8kbt8lh2BQIbZ63eAB4AdAABAAAAGgAAAFJvdGFyeSBtb3RvcnMgaW4gYWly Y3JhZnQAAAAeABoMAQAAAA8AAABNYXJrIFIgU3RlaXRsZQAAHgAdDgEAAAAnAAAAW0ZseVJvdGFy eV0gUmU6IEZXOiBSZTogUGx1Z3MgYW5kIE1hZ3MAAAIBCRABAAAAvwUAALsFAAC/CAAATFpGddEj z14DAAoAcmNwZzEyNeIyA0N0ZXgFQQEDAff/CoACpAPkBxMCgA/zAFAEVj8IVQeyESUOUQMBAgBj aOEKwHNldDIGAAbDESX2MwRGE7cwEiwRMwjvCfe2OxgfDjA1ESIMYGMAUPMLCQFkMzYWUAumCuMK hNUdNi0eEk8FEGcLgAdAwwXQB5BzYWdlHhMc9BpGA2E6B/EBkHJ5IF0EYHQFsAQgC4AgC3ByFQUA YQGAIAIgIGJlGRPgbGYiACKQV1JKoEpSU0BhBvAuBaBebRz0BmACMCBQVApQIIwxLw4wJNAwMDUk sIAyOjEzIFBNHPQcVG8gXyFoI8V1YmpDBZAkUVtGbHkmhF1lB/BlJmBGVyZhKdFQbQpAZwQgAHBk BdAfMHMjHPQc5UVkLBz0RG+EIHkIYCBrbm8H4MZ3E+AFQHR5cCSgIrGrC1AqolQhwGMm0HUUEEBz LCBlbC0T0GVcYXAs0AWxC1F0C4B14G0/ICBZCGAc9B8gGmkrAHQtki+wIHJ1owYxBGAtZ2EEIHMs 0D5JIXAEEDCgJKAyIWRvyQeQbicyAWF2JKAx0CUkoGwvwGQtAhB1bDULgGcc9HADYAJgZW2/LOMq 4iaQL7AhITSCLjDQ3FNvL1AzRy6zJwQgLlTnCsAkoADQdHUHQCkgHPR+dwWwA6AIYAVAIdESgTHX JSAyEAhhczDBSSKQMdKrOTE00mMy4GUvUGkFQP8UEDaAPRItoi+wNdUwVS9QtwWxIZAxoGkwoC5F bR6A/mgFQB6QNKEXsDWwEoE1kM5mN9Ac+isgcmsGAEJf/S9QQT1gA3AHgAIwIjEKwM81oSICOkE0 wyJmC4AkoPsD8BggIi5EN+A8kSzyLxH/RMEDEAQgA/Ax0DPwOjE1A3kvQCh0OuBG0wQgOzEp3y9Q NAA0QkgiNNFtN+AutK0EACAtQjOAZx9AczBxo0WwNNJMUzFIVmgN4L9I8DnCAJA1sDUQOyJwO0H/ SGM34AZgNKAhwAMgIrE00nsfIAeALTBwUTFGkE6ied9M8D4iSzVJCE+mVDIhNjbfTDEx0wIgVDEq kSBRsgQgAEJBQ0tXQVJE/TmxY0WSA1JQxDGgRsQtwP8s0D0zJDESgS9wKLEDYAEA/1P0WO4tcDLg NEILgA6wKvD/CYBYYiJANMMYIFjgQWBFkv9b8VCWVtFDhSLQL7ADoDNAnTrha1whAhAFwEthW1Ho YWtpIgNpX5A9EybQ/zVhKvE00jBGLkVM8ArADrCvNxE7QQnBLaFiO0FmC3ADNRArAFNPT05FUv9J AVhfWsciQF1TWaIrACriem0vEGgDYANwCYA34Ez/U2IBESixBCA9cDRCNAAq0f55MdBFkmQyAMBf kDHBTDG3OuEUEDfgTScCLuBjNRDfN4QvAmHEW1FjUnMKsUNQ/yIRDsAT4C8QPeFZkWsxX9H/UDJl gjYwUDFFITTSRrBfpf5hMhBBAVFQCfAAkCIRQED9b0FpZDEFsFP0FBAFoCrwPyayUKVIYkZxF7At oHMiv0eRW6E0MwnAYZJookI3Mf85WXEiXCQjkQtQFCA0tFbwbSGgdT3QQ4VCAxADIEr8ZXAzEAuQ HQ96IixVOBCecibBX9JSwy9wYXlcIf9KMS/gAIA9oWQya2MHgR8i/0FAJpBBkW8RIVFh42SRIqL9 TPB1ASAiAnTSCrAGMSri3xggJvEuAQMRRpBsO5FHgf0c60docCsAL+BbwSICUsf9IQB3EoFIYzgy RrBv8jrg/zWAKwA0hQhgQRIBoDsyNNL/WVcEIB9AAkBFkmgqEMBqUP1bUHkvUC2DX0KHgjWQazLf LNAtMwQAPbFHwyc50TJR/wMARaFNl4uRejJh6z/vLfD+cl/RNpBqQSIxAkBwAhPg74BUL3guUzDB SDLhakFVUv9y0VwhBuBI4S3SSKVNlzDBC0JvQ3Z9mOAAHgA1EAEAAABCAAAAPDg3REJBMDZDOUE1 Q0I4NEI4MDQzOUJBMDlEODZFNjlFNkNCNUI2QE1BSUwwMS5hdXN0aW4udXRleGFzLmVkdT4AAAAe AEcQAQAAAA8AAABtZXNzYWdlL3JmYzgyMgAACwDyEAEAAAAfAPMQAQAAAG4AAABSAEUAJQAzAEEA IABbAEYAbAB5AFIAbwB0AGEAcgB5AF0AIABSAGUAJQAzAEEAIABGAFcAJQAzAEEAIABSAGUAJQAz AEEAIABQAGwAdQBnAHMAIABhAG4AZAAgAE0AYQBnAHMALgBFAE0ATAAAAAAACwD2EAAAAABAAAcw 3WJ0VncLxQFAAAgwhZDGb3gLxQEDAN4/r28AAAMA8T8JBAAAHgD4PwEAAAAPAAAATWFyayBSIFN0 ZWl0bGUAAAIB+T8BAAAARQAAAAAAAADcp0DIwEIQGrS5CAArL+GCAQAAAAAAAAAvTz1BVVNUSU4v T1U9QVVTVElOL0NOPVJFQ0lQSUVOVFMvQ049TVMyAAAAAB4A+j8BAAAAFQAAAFN5c3RlbSBBZG1p bmlzdHJhdG9yAAAAAAIB+z8BAAAAHgAAAAAAAADcp0DIwEIQGrS5CAArL+GCAQAAAAAAAAAuAAAA AwD9P+QEAAADABlAAAAAAAMAGkAAAAAAAwAdQAAAAAADAB5AAAAAAB4AMEABAAAABAAAAE1TMgAe ADFAAQAAAAQAAABNUzIAHgAyQAEAAAAcAAAAZmx5cm90YXJ5QGxhbmNhaXJvbmxpbmUubmV0AB4A M0ABAAAADwAAAFdSSkpSU0Bhb2wuY29tAAAeADhAAQAAAAQAAABNUzIAHgA5QAEAAAACAAAALgAA AAMAdkD/////CwApAAAAAAALACMAAAAAAAMABhAjaGc+AwAHEMEFAAADABAQAAAAAAMAERABAAAA HgAIEAEAAABlAAAALS0tLS1PUklHSU5BTE1FU1NBR0UtLS0tLUZST006Uk9UQVJZTU9UT1JTSU5B SVJDUkFGVE9OQkVIQUxGT0ZXUkpKUlNAQU9MQ09NU0VOVDpUVUUxLzI1LzIwMDUxMjoxM1BNVAAA AAACAX8AAQAAAEIAAAA8ODdEQkEwNkM5QTVDQjg0QjgwNDM5QkEwOUQ4NkU2OUU2Q0I1QjZATUFJ TDAxLmF1c3Rpbi51dGV4YXMuZWR1PgAAAJ5v ------_=_NextPart_001_01C50B78.6FB84275--