X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Fri, 20 Jan 2012 09:42:42 -0500 Message-ID: X-Original-Return-Path: Received: from fmailhost05.isp.att.net ([204.127.217.105] verified) by logan.com (CommuniGate Pro SMTP 5.4.3) with ESMTP id 5357603 for lml@lancaironline.net; Fri, 20 Jan 2012 08:53:45 -0500 Received-SPF: none receiver=logan.com; client-ip=204.127.217.105; envelope-from=bbradburry@bellsouth.net Received: from desktop (adsl-98-85-146-162.mco.bellsouth.net[98.85.146.162]) by isp.att.net (frfwmhc05) with SMTP id <20120120135309H05005v9kne>; Fri, 20 Jan 2012 13:53:09 +0000 X-Originating-IP: [98.85.146.162] From: "Bill Bradburry" X-Original-To: "'Lancair Mailing List'" References: In-Reply-To: Subject: RE: [LML] Fuel Tank sealer X-Original-Date: Fri, 20 Jan 2012 08:53:12 -0500 X-Original-Message-ID: <7A91E6D9D83D43E4A039768AC2BE8C47@Desktop> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0089_01CCD750.F1452DA0" X-Mailer: Microsoft Office Outlook 11 Thread-Index: AczWsvwpglAhcRt7Qne7TJh0sockfQAx3m1A X-MimeOLE: Produced By Microsoft MimeOLE V6.0.6002.18463 This is a multi-part message in MIME format. ------=_NextPart_000_0089_01CCD750.F1452DA0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Peter, You should not let ethanol get anywhere near your composite airplane! That is 99% the reason your fuel tank failed! Ethanol is the worst decision that government bureaucrats have made in recent history! Bill B _____ From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of peter Sokolowski Sent: Thursday, January 19, 2012 9:02 AM To: lml@lancaironline.net Subject: [LML] Fuel Tank sealer Hi fellows, I just discovered the following problem with my header tank. In my - not flying yet - LNC 360 I have since 1 - 2 years about 3-4 gallons of mogas for run-up testing etc.. The headertank is sealed with the standard fuel tank sealer Jeffco 9700. Yesterday evening I wanted to change something on the fuel level sensor and discovered that the backplane with the screws holding the sensor in place is loose. Closer evaluation showed that the sealer was on large portions in the tank released from the lower tank basin. The upper cover is OK. Also the glue holding the backplate in place was complete released. The Jeffco felt hard and sticked to other surfaces OK. I do not believe that it is a mixing or surface preparation problem - even it could. But the header tank is made from two different materials - the lower basin (or the "basin" itself) is made of pure glass - and probably different from the other glass in the plane. The upper cover is the honeycomb material on which the Jeffco glues just fine. Now your opinions / experience is asked: 1. As it is European mogas with ethanol - could that be the reason ? 2. If it is a preparation problem - why does it stick to other surfaces - and the Jeffco should be sealing and the adhesive should not be influenced by the gas... ? 3. Is the Jeffco a bad batch ? 4. Does one need a fuel tank sealer anyhow in the header tank due to the other material (except the upper surface) ? 5. Any experience with mogas "contaminating" the glass with respect to further proceedings like re-covering again with sealer ? Any ideas are welcome - I have some problems in getting in touch with Jeffco and could not reach yet Lancair. Thanks in advance Peter LNC 360 MKII, D-EPSO, 95% (?) ------=_NextPart_000_0089_01CCD750.F1452DA0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Peter,

 

You should not let ethanol get = anywhere near your composite airplane!  That is 99% the reason your fuel = tank failed!  Ethanol is the worst decision that government bureaucrats = have made in recent history!

 

Bill B

 

From: = Lancair Mailing List = [mailto:lml@lancaironline.net] On Behalf Of peter Sokolowski
Sent: Thursday, January = 19, 2012 9:02 AM
To: = lml@lancaironline.net
Subject: [LML] Fuel Tank = sealer

 

Hi fellows, =

 <= /o:p>

I just = discovered the following problem with my header tank.

 <= /o:p>

In my = – not flying yet – LNC 360 I have since 1 – 2 years about 3-4 = gallons of mogas for run-up testing etc.. The headertank is sealed with the = standard fuel tank sealer Jeffco 9700.

Yesterday = evening I wanted to change something on the fuel level sensor and discovered that = the backplane with the screws holding the sensor in place is loose. Closer evaluation showed that the sealer was on large portions in the tank = released from the lower tank basin. The upper cover is OK. Also the glue holding = the backplate in place was complete released.

The Jeffco = felt hard and sticked  to other surfaces OK. I do not believe that it is a = mixing or surface preparation problem – even it could. But the header tank = is made from two different materials – the lower basin (or the “basin” itself) is made of pure glass – and probably different from the other glass in the plane. The upper cover is the = honeycomb material on which the Jeffco glues just = fine.

 <= /o:p>

Now your = opinions / experience is asked:

 <= /o:p>

1.       As it is European mogas with ethanol – could that = be the reason ?

2.       If it is a preparation problem – why does it stick = to other surfaces – and the Jeffco should be sealing and the adhesive = should not be influenced by the gas... ?

3.       Is the Jeffco a bad batch ?

4.       Does one need a fuel tank sealer anyhow in the header = tank due to the other material (except the upper surface) = ?

5.       Any experience with mogas “contaminating” the = glass with respect to further proceedings like re-covering again with sealer = ?

 <= /o:p>

Any ideas = are welcome – I have some problems in getting in touch with Jeffco and = could not reach yet Lancair.

 <= /o:p>

Thanks in = advance

 <= /o:p>

Peter

LNC 360 = MKII, D-EPSO, 95% (?)

 <= /o:p>

 <= /o:p>

 <= /o:p>

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