X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from omr-m10.mx.aol.com ([64.12.143.86] verified) by logan.com (CommuniGate Pro SMTP 6.0.9e) with ESMTPS id 6789419 for flyrotary@lancaironline.net; Thu, 20 Mar 2014 17:00:45 -0400 Received-SPF: pass receiver=logan.com; client-ip=64.12.143.86; envelope-from=DLOMHEIM@aol.com Received: from mtaomg-mbe01.mx.aol.com (mtaomg-mbe01.mx.aol.com [172.26.254.175]) by omr-m10.mx.aol.com (Outbound Mail Relay) with ESMTP id DEC9C702276EC for ; Thu, 20 Mar 2014 17:00:11 -0400 (EDT) Received: from core-mdb004b.r1000.mail.aol.com (core-mdb004.r1000.mail.aol.com [172.29.45.77]) by mtaomg-mbe01.mx.aol.com (OMAG/Core Interface) with ESMTP id 9CC3E38000085 for ; Thu, 20 Mar 2014 17:00:11 -0400 (EDT) From: DLOMHEIM@aol.com Full-name: DLOMHEIM Message-ID: <88065.7a6775b0.405cb0db@aol.com> Date: Thu, 20 Mar 2014 17:00:11 -0400 (EDT) Subject: Off Topic Lycoming Question (Charlie) To: flyrotary@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_88065.7a6775b0.405cb0db_boundary" X-Mailer: 9.0 Security Edition for Windows sub 5378 X-Originating-IP: [98.188.125.114] x-aol-global-disposition: G DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mx.aol.com; s=20121107; t=1395349211; bh=rS6cUMS2COxoSUBzjs3ams7WokzUOSy+BomByc/UZ3g=; h=From:To:Subject:Message-ID:Date:MIME-Version:Content-Type; b=Hk9jilnGaMEpcwlCetTy9BZjRpnCqe4tVCDXpwbSxvq9iOy2Q/1xgzs7AfgZDVuXe 4XQYDjoTA7zf/LJN/v8gtzCs/BQu9l6LmkTGpcV5rtqn/aXc5AQSIGXTBTJDxxjrA4 8cLm7CTGcWmrkVXY6PWKfmCXNT1DCFBa39pB/90U= x-aol-sid: 3039ac1afeaf532b56db1f0e --part1_88065.7a6775b0.405cb0db_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit >Have you checked the timing marks on the ring gear for accuracy? Not since my "AI" buddy came over with this buzz box and TDC finder and we set it a few weeks ago. >You can use a probe through a spark plug hole & a degree wheel to find TDC, & see if it agrees with the >ring gear marks... You are correct in that I can't use the markings on the ring gear because they don't equate to the true location of TDC. As strong as the engine runs I really at this point will get a hold of the gauge / wiring mfg and see what they think. I really bet it must be an issue where my gauge just isn't calibrated worth a hoot to the gauge which came with the a/c. If this line of troubleshooting fails to come up with a solution, then I'll begin with the basics as you suggest and recheck timing, etc.. Thanks for all the replies! Doug Enjoying having an RV to fly from the backyard airstrip! :) --part1_88065.7a6775b0.405cb0db_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable
>Have you checked the timing marks on the ring gear for accuracy? <= /DIV>
 
Not since my "AI" buddy came over with this buzz box and TDC finder an= d we=20 set it a few weeks ago. 
 
>You can use a probe through a spark plug hole & a degree wheel= to=20 find TDC, & see if it agrees with the >ring gear marks...
 
You are correct in that I can't use the markings on the ring gear beca= use=20 they don't equate to the true location of TDC.  As strong as the engin= e=20 runs I really at this point will get a hold of the gauge / wiring mfg and s= ee=20 what they think.  I really bet it must be an issue where my gauge just= =20 isn't calibrated worth a hoot to the gauge which came with the a/c.
 
If this line of troubleshooting fails to come up with=20 a solution, then I'll begin with the basics as you suggest and recheck= =20 timing, etc..
 
Thanks for all the replies!
 
Doug
Enjoying having an RV to fly from the backyard airstrip! =20 :)  
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