X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from omr-m02.mx.aol.com ([64.12.143.76] verified) by logan.com (CommuniGate Pro SMTP 6.0.5) with ESMTPS id 6419755 for flyrotary@lancaironline.net; Thu, 15 Aug 2013 12:42:19 -0400 Received-SPF: pass receiver=logan.com; client-ip=64.12.143.76; envelope-from=Lehanover@aol.com Received: from mtaomg-db01.r1000.mx.aol.com (mtaomg-db01.r1000.mx.aol.com [172.29.51.199]) by omr-m02.mx.aol.com (Outbound Mail Relay) with ESMTP id 3D3B0700000BE for ; Thu, 15 Aug 2013 12:41:45 -0400 (EDT) Received: from core-mob001c.r1000.mail.aol.com (core-mob001.r1000.mail.aol.com [172.29.194.193]) by mtaomg-db01.r1000.mx.aol.com (OMAG/Core Interface) with ESMTP id 09D53E000087 for ; Thu, 15 Aug 2013 12:41:45 -0400 (EDT) From: Lehanover@aol.com Full-name: Lehanover Message-ID: Date: Thu, 15 Aug 2013 12:41:44 -0400 (EDT) Subject: Re: [FlyRotary] Fuel tank repair To: flyrotary@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_e132f.6a9221bf.3f3e5ec8_boundary" X-Mailer: AOL 9.7 sub 1028 X-Originating-IP: [173.88.5.72] x-aol-global-disposition: G DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mx.aol.com; s=20121107; t=1376584905; bh=Y06ab3GDUugvMFOMjXMRWYFZENjBHmGgW+JJwOuOCo4=; h=From:To:Subject:Message-ID:Date:MIME-Version:Content-Type; b=jpdEPA7jkdnhsN3eRMilmWO55/4bhIZp8u9g/JlGs0zAXoKoZz9MDOk5I0oIXw49j 7aV+3tO7gwQDbflPXzYCvws6hNDq+CoQK8r27TqrYCk+GSWS93zee8m+aOY9ymzAni SmT5rfvWl37lM+O30/RfKeUqwQ4Ng/Cxqp4vzenI= x-aol-sid: 3039ac1d33c7520d04c917c8 --part1_e132f.6a9221bf.3f3e5ec8_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit If the tank is smooth on the inside. You could hand ream the hole out to big enough for a bulkhead fitting. The long run of the fitting would go into the tank. Make up a thick aluminum disc, big enough to cover the crack. Use fuel tank sealer in the hole and under the washer. Tighten the jamb huts with sealant under each. You could have the same washer under the bottom side as well. Now the crack is covered top and bottom with sealant and washers. Trim off any excess fitting and radius inlet to improve flow. The fitting can now be pointed in any direction. I can make a drawing if you need one. Lynn E. Hanover In a message dated 8/15/2013 10:30:37 A.M. Eastern Daylight Time, echristley@att.net writes: The Delta has one ~50gal tank that sits behind the back seat. Not wishing to fight the compatibility issues between epoxies and whatever the government may mandate be put into our fuel supply next year, I went with an welded up aluminum tank which I epoxied into the turtleback. For fittings, I welded in two NPT adapter bungs to the bottom of the tank. One for fuel supply, and one for return. I had a small, seeping leak at the supply fitting. I needed to turn the NPT-to-AN6 90 degree adapter one more turn to make it seal. I got it most of the way around before I heard a sharp ping. The bung that I welded in is now split. And that split is guaranteed to expand with vibration. The only solution I can think if is to cut a round hole to remove the bung, and then construct two plates (one for the inside of the tank and one for the outside), with a hole in the center for the 90 degree adapter. The problem is, the tank can now be viewed as a bomb. How can I cut a hole in the bottom of the tank, which will require that I work in an enclose space, without the possibility of a spark making short work of everything? -- Homepage: http://www.flyrotary.com/ Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List.html --part1_e132f.6a9221bf.3f3e5ec8_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable

If the tank is smooth on the inside. You could = hand=20 ream the hole out to big enough for a bulkhead fitting. The long run of the= =20 fitting would go into the tank. Make up a thick aluminum disc, big enough t= o=20 cover the crack. Use fuel tank sealer in the hole and under the washer. Tig= hten=20 the jamb huts with sealant under each.

You could have the same washer under the bottom= side=20 as well.

Now the crack is covered top and bottom with se= alant=20 and washers. Trim off any excess fitting and radius inlet to improve flow. = The=20 fitting can now be pointed in any direction. I can make a drawing if = you=20 need one.

Lynn E. Hanover

In a message dated 8/15/2013 10:30:37 A.M. Eastern Daylight Time,=20 echristley@att.net writes:

= The=20 Delta has one ~50gal tank that sits behind the back seat. Not=20
wishing to fight the compatibility issues between epoxies and whateve= r=20
the government may mandate be put into our fuel supply next year, I w= ent=20
with an welded up aluminum tank which I epoxied into the=20 turtleback.

For fittings, I welded in two NPT adapter bungs to the= =20 bottom of the
tank. One for fuel supply, and one for=20 return. I had a small, seeping
leak at the supply fitting= . I=20 needed to turn the NPT-to-AN6 90 degree
adapter one more turn to make= it=20 seal. I got it most of the way around
before I heard a sharp=20 ping. The bung that I welded in is now split.
And that sp= lit=20 is guaranteed to expand with vibration.

The only solution I can th= ink=20 if is to cut a round hole to remove the
bung, and then construct two= =20 plates (one for the inside of the tank and
one for the outside), with= a=20 hole in the center for the 90 degree
adapter. The problem is, t= he=20 tank can now be viewed as a bomb. How can
I cut a hole in the b= ottom=20 of the tank, which will require that I work
in an enclose space, with= out=20 the possibility of a spark making short
work of=20 everything?

--
Homepage: http://www.flyrotary.com/
Arc= hive=20 and UnSub: =20 http://mail.lancaironline.net:81/lists/flyrotary/List.html

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