X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Thu, 23 Aug 2007 07:40:02 -0400 Message-ID: X-Original-Return-Path: Received: from web54401.mail.yahoo.com ([206.190.49.131] verified) by logan.com (CommuniGate Pro SMTP 5.1.11) with SMTP id 2279346 for lml@lancaironline.net; Wed, 22 Aug 2007 21:21:18 -0400 Received-SPF: none receiver=logan.com; client-ip=206.190.49.131; envelope-from=randylsnarr@yahoo.com Received: (qmail 87002 invoked by uid 60001); 23 Aug 2007 01:20:36 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=X-YMail-OSG:Received:Date:From:Subject:To:In-Reply-To:MIME-Version:Content-Type:Content-Transfer-Encoding:Message-ID; b=N03lJmeDH7IX/qNDBd/O78Ajb5B93J30/BC1gdkeUXN/5wPqE8Mivi8sT9Q+85+zMqqxFYG2kD5zRlLCXIE4E4Tj+ZXgYo9/z5MqvaVPB6HafbyvCjPQVont6xFUCRiP6SwFt8sF6T2gdlBjCVEJ5qnL6p7JCs9A5V8bb88LjQs=; X-YMail-OSG: Gl3nKlsVM1lBJMqY1e1nO2OYsrtu1.sMv5cCWtAKWWGnmTD0d0AEYWOFjvbkzFWRpw-- Received: from [76.8.220.18] by web54401.mail.yahoo.com via HTTP; Wed, 22 Aug 2007 18:20:36 PDT X-Original-Date: Wed, 22 Aug 2007 18:20:36 -0700 (PDT) From: randy snarr Subject: Re: [LML] Re: wing leak X-Original-To: Lancair Mailing List In-Reply-To: MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="0-1747542770-1187832036=:83978" Content-Transfer-Encoding: 8bit X-Original-Message-ID: <659954.83978.qm@web54401.mail.yahoo.com> --0-1747542770-1187832036=:83978 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Fill them with av fuel and look for the blue stain. I thought mine were good with the balloon check but found a leak after paint and assembly. Lancair told me to use the fill and see method and I decided the balloons would be good enough. Both balloons would last for hours. One wing leaked fuel, the other did not. If I were to do it again, I would use fuel and drain it out when done. Then you are sure... I would do it outdoors to minimize fire danger though. IMHO Randy L. Snarr 235/320 Salt Lake City, Ut Wendell Solesbee wrote: When I tested my wings I had the same thing happen. When you fill the balloons when it is warm they will go down when the temperature goes down overnight due to air having more volume when it is warm than when it is cool.If you let them warm up again the next day the balloons will partially re-inflate.My balloons would not completely re-inflate but someone at lancair said if they will stay inflated 8 hours they are OK. So far I have no leaks. Wendell Solesbee Lancair IV-P N4LK ----- Original Message ----- From: Kyrilian Dyer To: lml@lancaironline.net Sent: Wednesday, August 22, 2007 7:32 AM Subject: [LML] Re: wing leak Does anyone have good ideas for finding the leak location? I'm still building. I tested my Legacy wings by plugging all but two holes and covered the vent and fuel cap (latched) with packing tape. I then installed barbed fittings to the two remaining threaded holes and put a party balloon over one and a tube on the other. I then compressed the tank and balloon through the tube until the balloon was filled and capped the tube. I checked all the plumbing and capped holes with soap bubbles, but saw no signs of leaks. However, the balloon was partially deflated the following day. A tied-off test balloon didn't deflate measurably, so I must presume that the air didn't bleed through the balloon. Does anyone have any ideas for further leak tests? I've heard of putting some freon into the tank and using a sniffer to find leaks, but doing this without false alarms within a garage seems tough. Besides, I don't have the freon or the tester. Has anyone tried this and if so, any suggestions? How about other methods? Thanks in advance for your help. - Kyrilian CavittP@aol.com wrote: Fuel leak could be relatively simple. Once you find the source of the leak, --------------------------------- Choose the right car based on your needs. Check out Yahoo! Autos new Car Finder tool. --------------------------------- Sick sense of humor? Visit Yahoo! TV's Comedy with an Edge to see what's on, when. --0-1747542770-1187832036=:83978 Content-Type: text/html; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Fill them with av fuel and look for the blue stain.

I thought mine were good with the balloon check but found a leak after paint and assembly. Lancair told me to use the fill and see method and I decided the balloons would be good enough. Both balloons would last for hours. One wing leaked fuel, the other did not. If I were to do it again, I would use fuel and drain it out when done. Then you are sure...

I would do it outdoors to minimize fire danger though.

IMHO
Randy L. Snarr
235/320
Salt Lake City, Ut


Wendell Solesbee <wendell1@pacbell.net> wrote:
When I tested my wings I had the same thing happen. When you fill the balloons when it is warm they will go down when the temperature goes down overnight due to air having more volume when it is warm than when it is cool.If you let them warm up again the next day the balloons will partially re-inflate.My balloons would not completely re-inflate but someone at lancair said if they will stay inflated 8 hours they are OK. So far I have no leaks.   
Wendell Solesbee Lancair IV-P  N4LK
 
----- Original Message -----
Sent: Wednesday, August 22, 2007 7:32 AM
Subject: [LML] Re: wing leak

Does anyone have good ideas for finding the leak location?  I'm still building.

I tested my Legacy wings by plugging all but two holes and covered the vent and fuel cap (latched) with packing tape.  I then installed barbed fittings to the two remaining threaded holes and put a party balloon over one and a tube on the other.  I then compressed the tank and balloon through the tube until the balloon was filled and capped the tube.  I checked all the plumbing and capped holes with soap bubbles, but saw no signs of leaks.  However, the balloon was partially deflated the following day.  A tied-off test balloon didn't deflate measurably, so I must presume that the air didn't bleed through the balloon.

Does anyone have any ideas for further leak tests?  I've heard of putting some freon into the tank and using a sniffer to find leaks, but doing this without false alarms within a garage seems tough.  Besides, I don't have the freon or the tester.  Has anyone tried this and if so, any suggestions?  How about other methods?

Thanks in advance for your help.

- Kyrilian


CavittP@aol.com wrote:
Fuel leak could be relatively simple.  Once you find the source of the leak,

Choose the right car based on your needs. Check out Yahoo! Autos new Car Finder tool.

Sick sense of humor? Visit Yahoo! TV's Comedy with an Edge to see what's on, when. --0-1747542770-1187832036=:83978--