X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Thu, 19 Aug 2010 08:41:15 -0400 Message-ID: X-Original-Return-Path: Received: from smtp0.av-mx.com ([137.118.16.56] verified) by logan.com (CommuniGate Pro SMTP 5.3.8) with ESMTP id 4436123 for lml@lancaironline.net; Wed, 18 Aug 2010 20:57:50 -0400 Received-SPF: pass receiver=logan.com; client-ip=137.118.16.56; envelope-from=pinetownd@volcano.net Received: from DennisPC (unknown [65.165.166.88]) (Authenticated sender: pinetownd@volcano.net) by smtp0.av-mx.com (Postfix) with ESMTP id 99DDB1C009A for ; Wed, 18 Aug 2010 20:57:13 -0400 (EDT) X-Original-Message-ID: From: "Dennis Johnson" X-Original-To: "Lancair Mailing List" References: In-Reply-To: Subject: Re: [LML] Tygon tubing discoloration X-Original-Date: Wed, 18 Aug 2010 17:57:12 -0700 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0473_01CB3EFE.C9448F80" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Windows Mail 6.0.6002.18197 X-MimeOLE: Produced By Microsoft MimeOLE V6.0.6002.18197 This is a multi-part message in MIME format. ------=_NextPart_000_0473_01CB3EFE.C9448F80 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi Adam, My sparkplug wires did the same thing. I think it's a surface = phenomenon, based on the rubber they used in the Adel clamp. Klaus = included white rubber Adel clamps with the electronic ignition system = and I wish I'd used those everywhere. Dennis Legacy, 350 tach hours ----- Original Message -----=20 From: Adam Molny=20 To: lml@lancaironline.net=20 Sent: Wednesday, August 18, 2010 10:17 AM Subject: [LML] Tygon tubing discoloration My Legacy brake lines use the standard poly-flo tubing inside yellow = Tygon tubing for protection. I just noticed that the Tygon has turned = black where it comes in contact with the Adel clamps. This photo shows = where the Tygon was zip-tied to the fuel return line in the wing stub. = It appears that some sort of chemical reaction occurred with the rubber = in the Adel clamp. I installed the brake lines in 2005 (ouch!). The = plane has not flown yet.=20 =20 Has anyone ever seen this before? Is it serious? =20 Thanks, Adam Molny Legacy #151 - getting close! =20 -------------------------------------------------------------------------= ----- -- For archives and unsub = http://mail.lancaironline.net:81/lists/lml/List.html ------=_NextPart_000_0473_01CB3EFE.C9448F80 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Hi Adam,
 
My sparkplug wires did the same thing.  I think it's a surface = phenomenon, based on the rubber they used in the Adel clamp.  Klaus = included white rubber Adel clamps with the electronic ignition system = and I wish=20 I'd used those everywhere.
 
Dennis
Legacy, 350 tach hours
----- Original Message -----
From:=20 Adam Molny
Sent: Wednesday, August 18, = 2010 10:17=20 AM
Subject: [LML] Tygon tubing=20 discoloration

My=20 Legacy brake lines use the standard poly-flo tubing inside yellow = Tygon tubing=20 for protection. I just noticed that the Tygon has turned black where = it comes=20 in contact with the Adel clamps. This photo shows where the Tygon was = zip-tied=20 to the fuel return line in the wing stub. It appears that some sort of = chemical reaction occurred with the rubber in the Adel clamp. I = installed the=20 brake lines in 2005 (ouch!). The plane has not flown yet.=20

 

Has=20 anyone ever seen this before? Is it = serious?

 

Thanks,

Adam=20 Molny

Legacy #151 =96 getting=20 close!

 

--
For archives and unsub=20 = http://mail.lancaironline.net:81/lists/lml/List.html
------=_NextPart_000_0473_01CB3EFE.C9448F80--