X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Sun, 01 Feb 2009 17:57:10 -0500 Message-ID: X-Original-Return-Path: Received: from imo-m14.mx.aol.com ([64.12.138.204] verified) by logan.com (CommuniGate Pro SMTP 5.2.12) with ESMTP id 3470431 for lml@lancaironline.net; Sat, 31 Jan 2009 16:17:32 -0500 Received: from Mquinns@aol.com by imo-m14.mx.aol.com (mail_out_v39.1.) id q.bc8.4847965c (37546) for ; Sat, 31 Jan 2009 16:17:29 -0500 (EST) Received: from smtprly-mb02.mx.aol.com (smtprly-mb02.mx.aol.com [64.12.207.149]) by cia-mb02.mx.aol.com (v121_r5.5) with ESMTP id MAILCIAMB027-5c664984bfe313a; Sat, 31 Jan 2009 16:17:30 -0500 Received: from mblk-d46 (mblk-d46.mblk.aol.com [205.188.212.230]) by smtprly-mb02.mx.aol.com (v121_r5.5) with ESMTP id MAILSMTPRLYMB024-5c664984bfe313a; Sat, 31 Jan 2009 16:17:23 -0500 References: X-Original-To: lml@lancaironline.net Subject: Re: [LML] Re: Fuel Tank Testing X-Original-Date: Sat, 31 Jan 2009 16:17:23 -0500 X-AOL-IP: 97.104.171.120 In-Reply-To: X-MB-Message-Source: WebUI MIME-Version: 1.0 From: mquinns@aol.com X-MB-Message-Type: User Content-Type: multipart/alternative; boundary="--------MB_8CB520071B1BC24_428_823_mblk-d46.sysops.aol.com" X-Mailer: AOL Webmail 41095-STANDARD Received: from 97.104.171.120 by mblk-d46.sysops.aol.com (205.188.212.230) with HTTP (WebMailUI); Sat, 31 Jan 2009 16:17:23 -0500 X-Original-Message-Id: <8CB520071AA951F-428-3D7@mblk-d46.sysops.aol.com> X-Spam-Flag: NO ----------MB_8CB520071B1BC24_428_823_mblk-d46.sysops.aol.com Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii" Matt, ??? Did you by chance take a picture of this setup you can post? Mark Quinn ? -----Original Message----- From: Matt losangeles To: lml@lancaironline.net Sent: Sat, 31 Jan 2009 7:39 am Subject: [LML] Re: Fuel Tank Testing I have found a nice way to put a vacuum on a tank and seal up a leak. Get one of these: ? http://www.vaccon.com/J-Series-M-home.aspx ? This creates a nice NO SPARK vacuum so you don't have to worry about fumes blowing up your vacuum cleaner and/or your airplane.?Your air compressor will supply the air to make this thing work. I hooked up one of these along with a 0-30 inches of water gauge and a cheap hardware store valve. If you pull about 10-20 inches of vacuum (measured with water not mercury on the gauge) you can put some resin on a leak and this will suck the resin and seal it up. After the resin, cover with flox and unhook the vacuum. Make sure to prep the area by scuffing it up and?cleaning it with acetone. I put acetone on the crack while pulling a vacuum to try and clean up inside the crack.?Be very careful not to pull too much vacuum or you can collapse the tank. Also, on my old Mooney I used that aeroseal stuff, which is basically lock tight. With that you want about 5 inches of vacuum because it is thin like water and too much vacuum will suck it all the way into the tank without giving it a chance to seal. (water measure). ? I have fixed leaks I had when I got my 360 with this method. Both wings and the header had leaks and now the don't. It works great. ? I think the vaccon and gauges with hose and everything should be less than $80 bucks. A nice tool to have lying around. ? Matt From: Christian Meier To: lml@lancaironline.net Sent: Thursday, January 29, 2009 8:23:54 PM Subject: [LML] Re: Fuel Tank Testing Bryan, In Austria we use following test to check the fueltanks: Fill the wings completly with water.?Seal all openings. Add a tube to the fuel pickup. This tube should be 1.43 meters high and will also be filled with water. Keep this for a few hours and check the water level. 1,43m of water = 0,14bar = 4,14inHG? Pressure There is no barometric error. ? Christian ? Lnc2 / 390 OE-VCM www.lancair.at ----------MB_8CB520071B1BC24_428_823_mblk-d46.sysops.aol.com Content-Transfer-Encoding: 7bit Content-Type: text/html; charset="us-ascii" Matt,
    Did you by chance take a picture of this setup you can post?

Mark Quinn  


-----Original Message-----
From: Matt losangeles <mattinlosangeles@yahoo.com>
To: lml@lancaironline.net
Sent: Sat, 31 Jan 2009 7:39 am
Subject: [LML] Re: Fuel Tank Testing

I have found a nice way to put a vacuum on a tank and seal up a leak. Get one of these:
 
 
This creates a nice NO SPARK vacuum so you don't have to worry about fumes blowing up your vacuum cleaner and/or your airplane. Your air compressor will supply the air to make this thing work. I hooked up one of these along with a 0-30 inches of water gauge and a cheap hardware store valve. If you pull about 10-20 inches of vacuum (measured with water not mercury on the gauge) you can put some resin on a leak and this will suck the resin and seal it up. After the resin, cover with flox and unhook the vacuum. Make sure to prep the area by scuffing it up and cleaning it with acetone. I put acetone on the crack while pulling a vacuum to try and clean up inside the crack. Be very careful not to pull too much vacuum or you can collapse the tank. Also, on my old Mooney I used that aeroseal stuff, which is basically lock tight. With that you want about 5 inches of vacuum because it is thin like water and too much vacuum will suck it all the way into the tank without giving it a chance to seal. (water measure).
 
I have fixed leaks I had when I got my 360 with this method. Both wings and the header had leaks and now the don't. It works great.
 
I think the vaccon and gauges with hose and everything should be less than $80 bucks. A nice tool to have lying around.
 
Matt

From: Christian Meier <lancair@meier.cc>
To: lml@lancaironline.net
Sent: Thursday, January 29, 2009 8:23:54 PM
Subject: [LML] Re: Fuel Tank Testing

Bryan,
In Austria we use following test to check the fueltanks:
Fill the wings completly with water. Seal all openings. Add a tube to the fuel pickup.
This tube should be 1.43 meters high and will also be filled with water. Keep this for a few hours
and check the water level.
1,43m of water = 0,14bar = 4,14inHG  Pressure
There is no barometric error.
 
Christian
 
Lnc2 / 390
OE-VCM

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