[Shop-talk] fuel tank leak

[FRED E THOMAS]

EXTREMELY DANGEROUSUS welding on a gas tank, please make sure you know what 
you are doing.  "FT"
==============================================================================================
----- Original Message ----- 
From: "David Scheidt" <dmscheidt at gmail.com>
To: "Dan and Jenny Fest (Coles Nurseries Inc)" <coles at colesnurseries.com>
Cc: <shop-talk at autox.team.net>
Sent: Friday, July 18, 2008 6:56 PM
Subject: Re: [Shop-talk] fuel tank leak


> On Fri, Jul 18, 2008 at 6:35 PM, Dan and Jenny Fest (Coles Nurseries
> Inc) <coles at colesnurseries.com> wrote:
>> I am rinsing my antique fuel tank with MEK to clean it out and prepare it 
>> for
>> sealing.  Two questions: First, the tank has a leak in one of the seams 
>> about
>> 2/3 of the way up.  It's not too bad but still needs to be fixed.  I 
>> can't get
>> to the spot on the inside.  Is there a putty or caulk that I can use on 
>> the
>> outside.
>
> Maybe.  Maybe not.  You can use epoxies to seal gas tanks, but
> depending on how it's leaking, and why, you may or may not be able to
> get it to stop.  "Antique tank" probably means brazed steel tank.
> Brazed seams can leak on the outside far from where they're leaking on
> the inside, with fuel being wicked along by capillary action.  There
> are companies that specialize in restoring tanks like that.  The usual
> method is bake the tank (to remove all traces of gasoline), cut a
> hole, sandblast the in and out sides of the tank, coat the tank with
> an epoxy, bake it again, weld the hole up, coat the outside.  With a
> coat of paint, it lloks stock.
>
> -- 
> David Scheidt
> dmscheidt at gmail.com
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