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1. 03:13 PM - Re: Re: Sealing fuel tank fitting ()
2. 03:59 PM - Re: Re: Sealing fuel tank fitting (Jim Belcher)
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| Subject: | Re: Sealing fuel tank fitting |
I wouldn't say you're wrong, but you might want to look at how much work
it is to remove a tank with a pinhole in it; particularly if you made
your leading edge skin in one piece. Even with a two-piece skin, what
with the rivets AFT of the spar, you either have to cut a bunch of
access plates, open up about 5 rivets back on each rib, or get used to
hearing rivet stubs rattling around in there. Me, I'd rather err on the
side of overkill than have to open the wing up again. (Don't ask me how
I know)
Paul R
----- Original Message -----
From: dalemed<mailto:dalemed@gmail.com>
To: zenith601-list@matronics.com<mailto:zenith601-list@matronics.com>
Sent: Monday, August 03, 2009 3:00 PM
Subject: Zenith601-List: Re: Sealing fuel tank fitting
<dalemed@gmail.com<mailto:dalemed@gmail.com>>
A 2 part mix sounds like an epoxy, which seems like overkill for an
application like mine. It seems like I should be able to use a
non-hardening Permatex form-a-gasket type of stuff. Am I wrong?
Thanks!
--------
Dale
Flying Cessna 170B
Building Zenith CH650
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=255836#255836<http://forums
.matronics.com/viewtopic.php?p=255836#255836>
http://www.matronics.com/Navigator?Zenith601-List<http://www.matronics.co
m/Navigator?Zenith601-List>
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on>
Message 2
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| Subject: | Re: Sealing fuel tank fitting |
On Tuesday 04 August 2009 17:11, paulrod36@msn.com wrote:
> I wouldn't say you're wrong, but you might want to look at how much work it
> is to remove a tank with a pinhole in it; particularly if you made your
> leading edge skin in one piece. Even with a two-piece skin, what with the
> rivets AFT of the spar, you either have to cut a bunch of access plates,
> open up about 5 rivets back on each rib, or get used to hearing rivet stubs
> rattling around in there. Me, I'd rather err on the side of overkill than
> have to open the wing up again. (Don't ask me how I know)
You can improve your chances of success by pressurizing the tank with air
after sealing but before installation. Paint the seams with a soap-bubble
mixture to find leaks.
This doesn't work bad on Zenith's tanks after installing the fuel gauge
floats.
--
============================================
Do not archive.
============================================
Jim B Belcher
BS, MS Physics, Math, Computer Science
A&P/IA
Retired aerospace technical manager
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