Steve, I do not know what pressure.  BUT, you can fill it and check 
for leaks with soapy water spray.  No leaks then tank is good.  These tanks 
are made from very thick metal, 1/4", about.  The usual place for major 
deterioration is BEHIND the data plate.  Since it was welded on in only the 
four corners the tanks tend to rust badly behind this plate.  New tanks from 
Manchester Tank, the OEM manufactured of these tanks, have the data plate 
welded on solidly all around, guess they know there was a problem, DUH !  I 
highly recommend that you remove the data plate by cutting through the welds 
with a hack saw.  Do not use a grinder or any implement that will make sparks 
while cutting the welds.  Once the tag is removed clean the surface of the 
tank well with a wire brush and check that the surface of the tank where the 
data plate was is solid and not leaking.  Small pinholes develop here first.  
If no leaks are found then you can clean the rest of the tank with a wire 
brush or by sand blasting then prime and paint with good automotive rust 
preventative primer and paint.  Then top coat with paintable rubberised 
rocker guard.  This will extend the life of your tank for a few more years.  
Best is to check it now and then for paint loss and further rusting.  It is 
in a very hostile environment under the vehicle getting constantly 
sandblasted by road debris.  

Cheers�

Frank Condelli
Almonte, Ontario, Canada
<A HREF="http://members.aol.com/BusFusion/bfhome.htm">BusFusion</A> a VW Camper event in Almonte, June 7-10
'87 Westy & Lionel Trains
Member: <A HREF="http://www.vanagon.com/">Vanagon List</A>, <A HREF="http://www.bcn.net/~limbo/">LiMBO</A>, <A HREF="http://www.westfalia.qc.ca/CIW_English.asp">IWCCC</A> & Capital City VW Club 
Vanagon/Vanagon Westfalia Service in the Ottawa Valley
<A HREF="http://members.aol.com/Fkc43/stebro.htm">STEBRO/Vanagon Stainless Steel Mufflers</A> �
<A HREF="http://members.aol.com/Fkc43/busindex.html">Frank Condelli & Associates</A> or http://frankcondelli.com

 

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