X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from mxo4.broadbandsupport.net ([209.55.3.84] verified) by logan.com (CommuniGate Pro SMTP 5.2.13) with ESMTP id 3571865 for flyrotary@lancaironline.net; Mon, 06 Apr 2009 16:30:57 -0400 Received-SPF: none receiver=logan.com; client-ip=209.55.3.84; envelope-from=davidm@remconinc.com Return-Path: Received: from [24.206.182.54] ([24.206.182.54:4828] helo=[192.168.1.108]) by mxo4.broadbandsupport.net (ecelerity 2.1.1.23 r(18304)) with ESMTP id 78/95-02843-B566AD94 for ; Mon, 06 Apr 2009 16:30:19 -0400 Message-ID: <49DA65D2.6060401@remconinc.com> Disposition-Notification-To: David Moyer Date: Mon, 06 Apr 2009 15:28:02 -0500 From: David Moyer Reply-To: davidm@remconinc.com Organization: Remcon Associates, LLC User-Agent: Thunderbird 2.0.0.21 (Windows/20090302) MIME-Version: 1.0 To: Rotary motors in aircraft Subject: Re: [FlyRotary] Re: MGS Epoxy and Ethanol References: In-Reply-To: Content-Type: multipart/alternative; boundary="------------030509050102050904010503" This is a multi-part message in MIME format. --------------030509050102050904010503 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Check out this link on Ethanol and fiberglass tanks and pipe. Just need to figure out with type of epoxy was used on these tanks. http://www.fiberglasstankandpipe.com/ethanol.htm David Moyer James Maher wrote: > John, > Sorry to hear about your fuel tank problems. > A couple of years ago I experienced similar issues with the fuel tank > in my Dyke Delta > which was constructed from Aeropoxy epoxy and fiberglass. > While the primary layups seemed to hold up better, the secondary > bonds, like where > the baffles and sump were bonded into the tank were the first to dissolve. > The way that I found out was during my 4th flight, were I lost engine > power > due to a very lean mixture, caused by a mostly clogged fuel filter. > I was lucky enough to be able to throttle back and limp home at 50% power. > When I began to trouble shoot the problem I found a clear gelatinous > substance in the gascolator and fuel filter. > The reason I am telling you this is to be sure that you know the side > effects of a deteriorating fuel tank. > You are fortunate to have found the problem on the ground and not > while flying. > Be sure to replace or clean all fuel filters and flush the system to > remove all > possibility of residual debris. > You should probably also check the apex seals to be sure that they > have not got gummed up with epoxy from your tank. > Finding a material that is impervious to the effects of ethanol is > very difficult. > I finally decided on reconstructing my tank from vinyl ester as it > seems to be the > best material with regards to ethanol. > I've got test coupons in mogas for about a year now and so far so good. > I wish you success with the repair. > Please keep us up to date on you progress. > > Jim > > > > --- On *Sun, 4/5/09, John Slade //* wrote: > > From: John Slade > Subject: [FlyRotary] MGS Epoxy and Ethanol > To: "Rotary motors in aircraft" > Date: Sunday, April 5, 2009, 9:33 PM > > Just in case anyone is thinking that fuel tanks made with MGS epoxy will stand > up to prolonged auto-gas / ethanol exposure, I'm here to tell you that they > won't. > > I'm in the process of removing and replacing the inner skins in both fuel > tanks on my Cozy IV. > > See http://forum.canardaviation.com/showthread.php?t=4594 for a detailed report > and pictures. I'll post more pictures on my web site when the repair job is > complete. > > Chris Barber - we need to buy each other a beer :) > John > > -- > Homepage: http://www.flyrotary.com/ > Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List.html > > --------------030509050102050904010503 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Check out this link on Ethanol and fiberglass tanks and pipe. Just need to figure out with type of epoxy was used on these tanks.

http://www.fiberglasstankandpipe.com/ethanol.htm
David Moyer


James Maher wrote:
John,
Sorry to hear about your fuel tank problems.
A couple of years ago I experienced similar issues with the fuel tank in my Dyke Delta
which was constructed from Aeropoxy epoxy and fiberglass.
While the primary layups seemed to hold up better, the secondary bonds, like where
the baffles and sump were bonded into the tank were the first to dissolve.
The way that I found out was during my 4th flight, were I lost engine power
due to a very lean mixture, caused by a mostly clogged fuel filter.
I was lucky enough to be able to throttle back and limp home at 50% power.
When I began to trouble shoot the problem I found a clear gelatinous substance in the gascolator and fuel filter.
The reason I am telling you this is to be sure that you know the side effects of a deteriorating fuel tank.
You are fortunate to have found the problem on the ground and not while flying.
Be sure to replace or clean all fuel filters and flush the system to remove all
possibility of residual debris.
You should probably also check the apex seals to be sure that they have not got gummed up with epoxy from your tank.
Finding a material that is impervious to the effects of ethanol is very difficult.
I finally decided on reconstructing my tank from vinyl ester as it seems to be the
best material with regards to ethanol.
I've got test coupons in mogas for about a year now and so far so good.
I wish you success with the repair.
Please keep us up to date on you progress.
 
Jim
 


--- On Sun, 4/5/09, John Slade <sladerj@sbcglobal.net> wrote:
From: John Slade <sladerj@sbcglobal.net>
Subject: [FlyRotary] MGS Epoxy and Ethanol
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Date: Sunday, April 5, 2009, 9:33 PM

Just in case anyone is thinking that fuel tanks made with MGS epoxy will stand
up to prolonged auto-gas / ethanol exposure, I'm here to tell you that they
won't.

I'm in the process of removing and replacing the inner skins in both fuel
tanks on my Cozy IV.

See http://forum.canardaviation.com/showthread.php?t=4594 for a detailed report
and pictures. I'll post more pictures on my web site when the repair job is
complete.

Chris Barber - we need to buy each other a beer :)
John

--
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