X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Mon, 12 Nov 2007 16:08:56 -0500 Message-ID: X-Original-Return-Path: Received: from vms042pub.verizon.net ([206.46.252.42] verified) by logan.com (CommuniGate Pro SMTP 5.2c1) with ESMTP id 2468018 for lml@lancaironline.net; Mon, 12 Nov 2007 13:56:40 -0500 Received-SPF: pass receiver=logan.com; client-ip=206.46.252.42; envelope-from=sbej@verizon.net Received: from VALUED3253602F ([71.109.169.202]) by vms042.mailsrvcs.net (Sun Java System Messaging Server 6.2-6.01 (built Apr 3 2006)) with ESMTPA id <0JRE00KNRPWYY337@vms042.mailsrvcs.net> for lml@lancaironline.net; Mon, 12 Nov 2007 12:55:47 -0600 (CST) X-Original-Date: Mon, 12 Nov 2007 10:56:07 -0800 From: "sbej" Subject: Re: [LML] Re: Permanant Header Tank X-Original-To: "Lancair Mailing List" X-Original-Message-id: <00a701c8255d$b1591250$6602a8c0@VALUED3253602F> MIME-version: 1.0 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2900.3198 X-Mailer: Microsoft Outlook Express 6.00.2900.3138 Content-type: multipart/alternative; boundary="----=_NextPart_000_00A4_01C8251A.A07DB730" X-Priority: 3 X-MSMail-priority: Normal References: This is a multi-part message in MIME format. ------=_NextPart_000_00A4_01C8251A.A07DB730 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Thanks all for responding. I will re-attempt the hinge method. One = more question: Can I use 1/8" rivets spaced every 1" rather than the 3/16" rivets every = 2" they use in the plans? I had a tough time smashing those and I = didn't trust they were smashed enough. 1/8" rivets with less spacing = seems like I could get a much better finished rivet job.=20 ----- Original Message -----=20 From: Gary Fitzgerald=20 To: lml@lancaironline.net=20 Sent: Sunday, November 11, 2007 7:37 PM Subject: [LML] Re: Permanant Header Tank Brian, Don't feel bad - I had to do mine 3 times. First time was just using = the forward deck before I added the header tank. Fit great (which meant = something was bound to go wrong). My header tank support obviously had = a twist, because after I bonded the header tank to the forward deck, no = amount (or combination) of heat, pulling with tie-down straps, or = cursing would get that assembly to fit. Drilled out the rivets in the = forward deck, filled in the holes, realigned everything (fit wasn't as = good as the first time, but nothing some trimming and micro wouldn't = fix). Second time, some epoxy or flox from the pad behind the hinge got = into the hinge joints, the hinge pins wouldn't pull out, and I = essentialy had a permanently bonded header tank, only that wasn't my = plan. Snapped the hinges off the forward deck, somehow separated the = upper and lower hinge halves, and tried again, this time with a = liberally lubricated hinge pin as well as duct tape protecting the hinge = joint. The point of this story is: You've got at least two more tries before = you can claim "Worst Header Tank Attachment Experience". I've been at it with this kit for (this number can't be right) just = over 4000 hours and 10 years, and I can sympathize with the desire to = just get the part finished, but everybody else has pretty much covered = why you wouldn't want to do this. If those hinges are kicking your = butt, use the screw method. I saw a beautiful LNC2 at Oshkosh a few = years ago that had a screwed-on header tank (naturally, AFTER I went = through all that with the hinges). Think about this: If you sprung a = leak between the header tank and the forward deck on the forward side of = your header tank, what would you do? Gary Fitzgerald LNC2 extra-slow build ~70% engine: TBD St. Charles, MO ----- Original Message -----=20 From: Bryan Wullner=20 Anyone have good reasoning as to why I shouldn't permanantly bond my = header tank on? I tried the hinge method and the fit with the cowling = was terrible so I had to take the entire thing apart today. ------=_NextPart_000_00A4_01C8251A.A07DB730 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Thanks all for responding. I will = re-attempt the=20 hinge method.   One more question:
Can I use 1/8" rivets spaced every 1" = rather than=20 the 3/16" rivets every 2" they use in the plans?  I had a = tough time=20 smashing those and I didn't trust they were smashed enough.  1/8" = rivets=20 with less spacing seems like I could get a much better = finished rivet=20 job. 
----- Original Message -----
From:=20 Gary = Fitzgerald=20
Sent: Sunday, November 11, 2007 = 7:37=20 PM
Subject: [LML] Re: Permanant = Header=20 Tank

Brian,
 
Don't feel bad - I had to do mine 3 = times. =20 First time was just using the forward deck before I added the header=20 tank.  Fit great (which meant something was bound to go = wrong).  My=20 header tank support obviously had a twist, because after I bonded the = header=20 tank to the forward deck, no amount (or combination) of heat, pulling = with=20 tie-down straps, or cursing would get that assembly to fit.  = Drilled out=20 the rivets in the forward deck, filled in the holes, realigned = everything (fit=20 wasn't as good as the first time, but nothing some trimming and micro = wouldn't=20 fix).  Second time, some epoxy or flox from the pad behind the = hinge got=20 into the hinge joints, the hinge pins wouldn't pull out, and I = essentialy had=20 a permanently bonded header tank, only that wasn't my plan.  = Snapped the=20 hinges off the forward deck, somehow separated the upper and lower = hinge=20 halves, and tried again, this time with a liberally lubricated hinge = pin as=20 well as duct tape protecting the hinge joint.
 
The point of this story is:  = You've got at=20 least two more tries before you can claim "Worst Header Tank = Attachment=20 Experience".
 
I've been at it with this kit for = (this number=20 can't be right) just over 4000 hours and 10 years, and I can = sympathize with=20 the desire to just get the part finished, but everybody else has = pretty much=20 covered why you wouldn't want to do this.  If those hinges are = kicking=20 your butt, use the screw method.  I saw a beautiful LNC2 at = Oshkosh a few=20 years ago that had a screwed-on header tank (naturally, AFTER I went = through=20 all that with the hinges).  Think about this:  If you sprung = a leak=20 between the header tank and the forward deck on the forward side of = your=20 header tank, what would you do?
 
Gary Fitzgerald
LNC2 extra-slow = build=20 ~70%
engine: TBD
St. Charles, MO
 
----- Original Message -----
From:=20 Bryan = Wullner=20
 
Anyone have good reasoning as to = why I=20 shouldn't permanantly bond my header tank on?  I tried the = hinge method=20 and the fit with the cowling was terrible so I had to take the = entire thing=20 apart today.
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