Mailing List lml@lancaironline.net Message #5983
From: <N295VV@aol.com>
Subject: Re: tiny leaks in my wing tanks
Date: Sun, 9 Jul 2000 09:34:36 EDT
To: <lancair.list@olsusa.com>
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If you know where the fuel is appearing, try this:

Run your gas tanks until they contain only a few gallons of gas.

Put a slight vacuum on the fuel bay--caution, no electrical vacuum pumps!

Get some Hexane and spray some onto the area where you suspect the fuel is
appearing from--hexane is essentially oil-free gasoline, and will prepare the
surface around the hole to accept the epoxy from the next step--the hexane
will dry from the cleaned area in a matter of seconds.

Do not use methylene chloride--when it gets into the gas tank, it will
corrode your cylinder walls!  Hexane is simply almost 100 octane fuel.

Make up some fairly free-flowing epoxy mix, and place into the area where you
have cleaned the hole with hexane, allowing the vacuum to suck the epoxy into
the hole.  When you think this has happened, remove the vacuum, and let the
epoxy harden.
If the hole is large, you may want to thicken the epoxy with micro, or use a
more sticky type.

David Jones
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Please send your photos and drawings to marvkaye@olsusa.com.
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