Rust in fuel tank, options ?

Ok, so I did a search and found a few methods and was wondering what everyones favourite was ? Ive tried the nuts and bolts in the tank and shake method on the old VFR 400 it was kinda ok but not brilliant so was considering either the elecroysis method or possibly some form of rust reversal chemical method, any ideas ?
Cheers
Stew

[andrewsmith]

How bands bad??
I'd look at POR15 sealer, its not cheap but the yanks love it and it does work. I did my curvy tank over the winter and it looks like it saved it.

I'll hunt out the firm Sarah Jordan recommends of its beyond a diy rescue


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theres plenty of untouched steel showing but want to get on top of it from day one, Ive drained about 1/2 gallon of old fuel out and there were small bits of rust coming with it, was going to give it a gentle blast with a power washer on a lowish setting to clean it out as much as poss and then take it from there.
Cheers

[andrewsmith]

if the steel is okay, POR15 will be reet. Do it once and be done with it

Originally Posted by andrewsmith

if the steel is okay, POR15 will be reet. Do it once and be done with it

Cool, thanks

Or if that fails we use this company, very very good IMHO.

http://www.iandmautobodyrepairs.co.u...e-cleaning.php

[squirrel_hunter]

This is something that I’m looking at now as well. I have been speaking to a couple of local firms and they can all offer a service. For me I think I’m just going to get the tank acid dipped as its going for a full paint job anyway. However I’m interested in the treatment post cleaning. I have heard some interesting things about tank treatments, for example POR15 and there apparently is some discussion over it and or other similar coatings. Apparently the additives in the fuel can eat away at this lining and cause problems blocking the filer/ carbs etc, or the exact same problem a rusty tank can have.

The company I talked to today recommended not doing anything like that. They could strip and clean the tank and then would spray the inside with oil to protect it while it went for paint. After that a bit of petrol swilled around to take this oil off before use is what they suggest. Thinking about it a tank fresh from the factory does not have any treatment to it does it? Furthermore the company linked to above makes no mention of post clean treatments.

So my question would be should I treat the tank with anything post clean? If so what? If not why? I would be very interested to hear what people have used in the past and their success with that approach.

[yorkie_chris]

The POR15 is apparently OK.

Kreem I have heard this coming loose inside with modern fuels.

[Bibio]

stick some nuts/bolts in then tank with some phosphoric acid (krust or similar) and 'shake' (like sieving flour) the hell out of it. remove nuts/bolts and excess liquid then let cure overnight. once cured swirl some petrol around and empty out.

Originally Posted by squirrel_hunter

Furthermore the company linked to above makes no mention of post clean treatments.

They do the whole job, cleaning and treament. It leaves the exterior paint untouched. Have used them for the past few years and they have done an excellent no fuss job on all the tanks we have sent them.