X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from qmta12.westchester.pa.mail.comcast.net ([76.96.59.227] verified) by logan.com (CommuniGate Pro SMTP 5.4.4) with ESMTP id 5392419 for flyrotary@lancaironline.net; Sat, 11 Feb 2012 17:48:40 -0500 Received-SPF: none receiver=logan.com; client-ip=76.96.59.227; envelope-from=gordon@acumen-ea.com Received: from omta02.westchester.pa.mail.comcast.net ([76.96.62.19]) by qmta12.westchester.pa.mail.comcast.net with comcast id YmH51i0050QuhwU5Cmo6ug; Sat, 11 Feb 2012 22:48:06 +0000 Received: from GordonHPelite ([76.27.173.182]) by omta02.westchester.pa.mail.comcast.net with comcast id Ymo61i00Z3wUsn83Nmo690; Sat, 11 Feb 2012 22:48:06 +0000 From: "Gordon Alling" To: "'Rotary motors in aircraft'" Subject: E-Shaft Lock Bolt HELP! Date: Sat, 11 Feb 2012 17:48:02 -0500 Message-ID: <003c01cce90f$35e4f380$a1aeda80$@com> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_003D_01CCE8E5.4D0EEB80" X-Mailer: Microsoft Office Outlook 12.0 Content-Language: en-us Thread-Index: AczpDzWb4UyKP00VTPaClcJiHHFehw== This is a multi-part message in MIME format. ------=_NextPart_000_003D_01CCE8E5.4D0EEB80 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit I am tearing down a 13B (1st time) and have spent the last few hours trying to remove the eccentric shaft lock bolt. Is there some secret to it that someone can share? I don't have a flywheel for the engine so I am holding the shaft with a pipe wrench on the pulley boss. I have bent the handle on my 3/8 drive ratchet and couldn't break it with a 24" breaker bar and a 5' extension. I cranked-up my compressor and couldn't do it with my impact wrench. I tried turning clockwise to convince myself that it isn't reverse threaded. I would try heating but my torch won't stay lit for some reason (another thing to fix). Does anyone have a magic trick to get past this hurdle? Is there any reason that holding the pulley boss would prevent the lock bolt from turning? Any and all suggestions are appreciated. Gordon C. Alling, Jr., PE President acumen Engineering/Analysis, Inc. 540-786-2200 www.acumen-ea.com ------=_NextPart_000_003D_01CCE8E5.4D0EEB80 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

I am tearing down a 13B (1st time) and have = spent the last few hours trying to remove the eccentric shaft lock = bolt.  Is there some secret = to it that someone can share?  = I don’t have a flywheel for the engine so I am holding the = shaft with a pipe wrench on the pulley boss.  I have bent the handle on my = 3/8 drive ratchet and couldn’t break it with a 24” breaker = bar and a 5’ extension.  = I cranked-up my compressor and couldn’t do it with my = impact wrench.  I tried = turning clockwise to convince myself that it isn’t reverse = threaded.  I would try = heating but my torch won’t stay lit for some reason (another thing = to fix).

 

Does anyone have a magic trick to get past this = hurdle?  =

 

Is there any reason that holding the pulley boss would = prevent the lock bolt from turning?

 

Any and all suggestions are = appreciated.

 

Gordon C. Alling, Jr., = PE

President

acumen = Engineering/Analysis, = Inc.

 

540-786-2200

www.acumen-ea.com

 

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