[urq] Gas tank repair

[Chris]

Gas fumes being sucked into a device that has a constant high voltage arc seems like a bad idea. If you don't have access to nitrogen then fill it with water and then empty. That will safely push out all the bad fumes. When the water is emptied then the only thing that would enter is nice fresh air.  Then maybe use the vacuum to help dry it. 

On Feb 22, 2013, at 15:06, "Patrick Carlier" <p.carlier at pandora.be> wrote:

> 
> I'de prefer fuel fumes over CO :)
> CO is higly toxic , one breath could kill you .
> 
> Think you mean Nitrogen gas to
> push the fuel vapour and the air out of the tank .
> That's what we used when welding diesel tanks .
> 
> Another way , the poor mans way , would be to connect a
> vacuum cleaner to the fill opening , and suck the vapours out .
> Let it run for helf an hour and it should be good .
> 
> Pat
> 
> 
> 
> 
> 
> ----- Original Message ----- From: "Keith" <spotatashleys at hotmail.com>
> To: "AF" <afinn1 at gmail.com>; <urq at audifans.com>
> Sent: Friday, February 22, 2013 8:39 PM
> Subject: Re: [urq] Gas tank repair
> 
> 
>> Andrew
>> I'm almost certain their is a mesh on the outflow pipe within the tank. The most effective repair is to remove it and then a soldered or braised patch (but fill the tank with CO or CO2 or water to purge the fuel fumes but the latter leaves a drying out problem after) . If the tank needs more than this then you are best getting a new Aluminium one made. A friend of mine did this for less than the cost of a new OEM tank (if you could find one) and also for peace of mind/longevity. Looks good too.
>> Hope this helps.
>> 
>> Regards
>> Keith
>> 
>> '87 WR in cold Worcestershire (i.e too cold for me to venture in to the garage - must get a heater!)
>> 
>> -----Original Message----- From: AF
>> Sent: Friday, February 22, 2013 7:32 PM
>> To: urq at audifans.com
>> Subject: [urq] Gas tank repair
>> 
>> Folks can I use the better quality lining systems on my fuel tank or is there a mesh screen in the base of the urq tank that will clog when I pour in the sealant? Thanks.
>> 
>> Andrew Finney
>> 1985 urq
>> 
>> Sent from the road
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