[Spridgets] Boiling out fuel tanks

[John Innis]

I have done a few tanks over the past year, and had good luck with the
following sequence of steps.

1. Remove fuel.
2. Fill tanks with soapy water (I like simple green, but any detergent
should work)
3. Agitate and let settle several times, then drain
4.  Rinse tank a few times with distilled water to get the soap out.  (use
distilled water to avoid leaving any mineral residue)
5.  Put a small amount (like 1/2 gal) of denatured alcohol in the tank and
agitate.  The alcohol will mix with he water and insure it dries quickly
and completely.
6.  Dry the inside of the tank.  I use a piece of heater hose connected to
a hair dryer to dry the tank out.
7.  Remove rust and etch the inside of the tank with phosphoric acid.  I
normally used about 64oz of naval jelly dissolved in 2 gallons of distilled
water.  SEAL the tank as soon as this goes in to avoid any rust forming on
the parts you have etched.
8.  As soon as all rust is removed, immediately drain the acid and apply
your favorite tank sealant.

I have done a couple bike tanks and a couple LBC tanks this way over the
years.  One is almost 20 years since I did it, and it shows no signs of
deterioration.


On Mon, Feb 15, 2016 at 2:35 PM, Billy Zoom via Spridgets <
spridgets at autox.team.net> wrote:

> Is real carburetor dip still legal anywhere? You know, the stuff that
> could strip paint or skin in a few minutes?
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