: What can be purchased locally to remove and prevent rust flakes in a Model A gas tank, the tank is removed. bryan, in my opinion, using a strong acid to remove rust
is a procedure so dangerous and risky that i myself would not
consider it. one can learn the skills involved in using strong
reagents safely, of course and i'm sure many people have
developed techniques which are safe and effective. that said, i still wouldn't consider using a strong acid--
the idea about rolling the tank with a quantity of small
hardware is safer.here's an idea--- what about using a
very mild etch, say by obtaining one of the phosphoric acid
"metal prep" materials used by painters, diluting the matl
with 2 or 3 parts water, filling the tank with this solution
and allowing it so sit for a day's time or so---then after its
thoroly dry, add some small parts, say the size of a 10-32
nut, and shake vigourously. we used this method here, on the fuel tank of a small engine,
with complete success. another method we've used, on several old trucks, is to do
nothing at all to the tank, but to fit an additional fuel
filter, with replaceable paper elements. the sloshing of the
fuel will eventually carry the loose rust to the outlet,
thence to the filter. at first, one must change filters every
10-20 miles, but after a couple of hundred miles driving the
loose rust has been caught and the filters last much longer.
that sounds laughable, i know, but it works hope this helps
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