Re: [T3] engine surge, lose of power

["Bernard Seront" <serontb@wanadoo.fr>]

> .... epoxy type sealer they sell to seal older gas tanks?

I've seen it done, i know and spoke with people who used it, everybody seems to be happy.
The "system" I'm speaking of is made in France, it's not POR 15 but I guess the idea is the same everywhere.

Basically you start by a "derusting" agent, which is nothing more than phosphoric acid (15 % by volume in water). It dissolves rust (does not transform rust in something else that stays on the metal, but really dissolve it). I have used it on other pieces, and it works great as long as the piece is clean from grease, oil ... For gas tanks you put 2 or 3 liters of Phosphoric acid 15%  in the tank and let stay for a couple of hours. Put the tank upside down, or otherwise as needed so all the sheet metals get a good bath. Be aware that if the tank is rusted through you'll end up with holes!

The sealing agent is a variety of epoxy resin that you pour in the tank, your spread it everywhere by carefuly shaking the tank, let dry, et voila! Well it takes some attention to get everything well covered, but the resin is high viscosity so it does stick to the metal.
I've seen a tank cut in half and the result is fine, i'll do it on mine when time comes to take care of that.
If someone is really interested I could scan and send the catalogue pages with some details, will be in french...

Bernard Seront
serontb@wanadoo.fr


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