X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Mon, 06 Apr 2009 10:45:06 -0400 Message-ID: X-Original-Return-Path: Received: from blu0-omc3-s9.blu0.hotmail.com ([65.55.116.84] verified) by logan.com (CommuniGate Pro SMTP 5.2.13) with ESMTP id 3571191 for lml@lancaironline.net; Mon, 06 Apr 2009 08:49:41 -0400 Received-SPF: pass receiver=logan.com; client-ip=65.55.116.84; envelope-from=ian.crowe@sympatico.ca Received: from BLU0-SMTP37 ([65.55.116.74]) by blu0-omc3-s9.blu0.hotmail.com with Microsoft SMTPSVC(6.0.3790.3959); Mon, 6 Apr 2009 05:49:05 -0700 X-Originating-IP: [76.65.36.33] X-Originating-Email: [ian.crowe@sympatico.ca] X-Original-Message-ID: X-Original-Return-Path: ian.crowe@sympatico.ca Received: from IanPC ([76.65.36.33]) by BLU0-SMTP37.blu0.hotmail.com over TLS secured channel with Microsoft SMTPSVC(6.0.3790.2668); Mon, 6 Apr 2009 05:49:04 -0700 From: "Ian Crowe" X-Original-To: "Lancair Mailing List" References: In-Reply-To: Subject: Re: [LML] I wish I had used a torque wrench X-Original-Date: Mon, 6 Apr 2009 05:48:54 -0700 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0315_01C9B67B.5EDD64D0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Windows Mail 6.0.6000.16480 X-MimeOLE: Produced By Microsoft MimeOLE V6.0.6000.16669 X-OriginalArrivalTime: 06 Apr 2009 12:49:04.0831 (UTC) FILETIME=[115BECF0:01C9B6B6] This is a multi-part message in MIME format. ------=_NextPart_000_0315_01C9B67B.5EDD64D0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable I wish I had used a torque wrench You could have used a Helicoil thread = insert. I am not certain of your plug size or thread pattern but you = should try Helicoil and see if there is an insert to fit. Relatively = very cheap. Ian Crowe ----- Original Message -----=20 From: John Hafen=20 To: lml@lancaironline.net=20 Sent: Monday, April 06, 2009 4:41 AM Subject: [LML] I wish I had used a torque wrench=20 So there I am on my crawler, finishing up an oil change on N413AJ that = has a total of 110 hours on her. I'm putting the plug in the oil pan = and its nice and tight. I think (here is where I started to get into = trouble) "I want this nice and tight so it doesn't break the safety wire = and fall out in flight, jettisoning all the oil which freezes the engine = and I have to crash land somewhere...." So one more little twist on the plug, and OOOOOOOps! It went just a = little bit too far. I don't need to tell you the level of disappointment that flooded over = me as I contemplated that I had just stripped the threads in the oil = sump pan. So I atoned for my sin. I bought a new sump, hired some help, disconnected lots of stuff, = jacked the engine up just high enough to remove the old pan and slip it = out the front and scrape off the old gasket and install a new pan with = gasket. Then lower the engine back into place, call Lancair to see how = to torque the engine mounting bolts (450 - 500 inch pounds), then hook = everything back up. So I'm ready to fly once again. MEANWHILE, I have an Oil Sump pan from Continental, part number 632876 = with only a hundred hours on it, in perfect working condition, except = for the stripped threads in the oil plug hole. The mechanic who helped me out yesterday told me that the right guy = with the right aluminum welding skills could actually weld in a new = aluminum disk that could be threaded and the pan would be good as new. Since I do not possess aluminum welding skills, my options are: * Offer the oil sump pan for sale to the highest bidder, or * Make a wall clock out of it. I haven't gotten the bill for it yet, but the mechanic told me the new = sump pan would cost about $2,300.00. That is for a new one with threads = that are not yet stripped. I don't know what mine, with the stripped = threads, would be worth. So if anyone has a need for an Oil Sump Pan with stripped threads, let = me know. Or if you have any particularly clever and creative ideas on = how to make a clock out of it, I would be interested in hearing from you = as well. Cheers, John Hafen N413AJ - 110 hours PS - the kindly mechanic said, "John - just use a 1/4th inch drive on = everything you do and you'll be fine. " Then he handed me the = Continental specs that list torque settings for everything under the = sun, just in case I decide to go that route. jh ------=_NextPart_000_0315_01C9B67B.5EDD64D0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable I wish I had used a torque wrench =A0
You could have used a Helicoil thread = insert. =20 I am not certain of your plug size or thread pattern but you should try = Helicoil=20 and see if there is an insert to fit.  Relatively very = cheap.
 
Ian Crowe
----- Original Message -----
From:=20 John Hafen=20
Sent: Monday, April 06, 2009 = 4:41=20 AM
Subject: [LML] I wish I had = used a torque=20 wrench

So there I am on my crawler, finishing up an = oil=20 change on N413AJ that has a total of 110 hours on her.  I=92m = putting the=20 plug in the oil pan and its nice and tight.  I think (here is = where I=20 started to get into trouble) =93I want this nice and tight so it = doesn=92t break=20 the safety wire and fall out in flight, jettisoning all the oil which = freezes=20 the engine and I have to crash land somewhere....=94

So one = more little=20 twist on the plug, and OOOOOOOps!  It went just a little bit too=20 far.

I don=92t need to tell you the level of disappointment = that flooded=20 over me as I contemplated that I had just stripped the threads in the = oil sump=20 pan.

So I atoned for my sin.

I bought a new sump, hired = some=20 help, disconnected lots of stuff, jacked the engine up just high = enough to=20 remove the old pan and slip it out the front and scrape off the old = gasket and=20 install a new pan with gasket.  Then lower the engine back into = place,=20 call Lancair to see how to torque the engine mounting bolts (450 =96 = 500 inch=20 pounds), then hook everything back up.

So I=92m ready to fly = once=20 again.

MEANWHILE, I have an Oil Sump pan from Continental, part = number=20 632876 with only a hundred hours on it, in perfect working condition, = except=20 for the stripped threads in the oil plug hole.

The mechanic who = helped=20 me out yesterday told me that the right guy with the right aluminum = welding=20 skills could actually weld in a new aluminum disk that could be = threaded and=20 the pan would be good as new.

Since I do not possess aluminum = welding=20 skills, my options are:

     * Offer = the oil=20 sump pan for sale to the highest bidder, = or
     *=20 Make a wall clock out of it.

I haven=92t gotten the bill for it = yet, but=20 the mechanic told me the new sump pan would cost about $2,300.00. =  That=20 is for a new one with threads that are not yet stripped.  I = don=92t know=20 what mine, with the stripped threads, would be worth.

So if = anyone has=20 a need for an Oil Sump Pan with stripped threads, let me know. =  Or if you=20 have any particularly clever and creative ideas on how to make a clock = out of=20 it, I would be interested in hearing from you as=20 well.

Cheers,

John Hafen
N413AJ =97 110 = hours

PS =97 the=20 kindly mechanic said, =93John =97 just use a 1/4th inch drive on = everything you do=20 and you=92ll be fine. =93  Then he handed me the Continental = specs that list=20 torque settings for everything under the sun, just in case I decide to = go that=20 route.

jh ------=_NextPart_000_0315_01C9B67B.5EDD64D0--