Petrol tank question........

Ogmios · Mar 5, 2019

Any suggestions for a tank that was previously "fixed"

with "Petseal"?

I used two doses of it as suggested - the sales bloke said I'd need two on a big Guzzi tank.
Fine, only one of the tins had gone off and i didnt know this until half of it was poured into the feckin tank!
Cured too fast and went lumpy in there. I had no option but to leave it and hope.
Worked fine for a while until the lining started to come off and got through to the carbs o.k. where it coated the slides in a light coating of muck that jammed the carbs open.

I gave up - Got a new/secondhand tank.

The old tank has been in the attic ever since.
..... i wonder if the "Petseal" has actually gone hard by now and i could reuse the tank? :nenau

Number 6 · Mar 5, 2019

Ogmios said:
Any suggestions for a tank that was previously "fixed" with "Petseal"?

Petseal is crap! I've used this stuff to remove it, pour it in and shake it around and leave until it's no longer liquid. You should end up with a load of small dry crumbly bits.

https://www.mandp.co.uk/petseal-ultra-removal-solvent.html

Ogmios · Mar 6, 2019

Number 6 said:
Petseal is crap! I've used this stuff to remove it, pour it in and shake it around and leave until it's no longer liquid. You should end up with a load of small dry crumbly bits.

https://www.mandp.co.uk/petseal-ultra-removal-solvent.html

I completely agree - useless product and producer too.
... i half hope that after at least 5 years in my attic the stuff might actually have hardened up by now!

Johno23 · Mar 24, 2019

Tank has been soaking in distilled vinegar for two weeks............
Flushed it out today........and hey presto all the bloody rust just came away and the inside is back to shiny steel :thumb2

Can’t believe how good it looks in there.All for about a fiver :beerjug:

Definitely the way to go, or at least we’ll worth a go before contemplating anything far more expensive.

:bounce1

Deleted account 211025001 · Mar 24, 2019

Andres

squibb34 · Mar 24, 2019

Well done.

Just count yourself very lucky ........ that it wasn't more serious corrosion.

Number 6 · Mar 25, 2019

Johno23 said:
Tank has been soaking in distilled vinegar for two weeks............
Flushed it out today........and hey presto all the bloody rust just came away and the inside is back to shiny steel Can’t believe how good it looks in there.All for about a fiver
Definitely the way to go, or at least we’ll worth a go before contemplating anything far more expensive.

That's a result

I've read on other forums about vinegar being used but it's always been a bit vague, could you tell us exactly what you used?

steve hughes · Mar 25, 2019

Johno23 said:
Tank has been soaking in distilled vinegar for two weeks............
Flushed it out today........and hey presto all the bloody rust just came away and the inside is back to shiny steel Can’t believe how good it looks in there.All for about a fiver
Definitely the way to go, or at least we’ll worth a go before contemplating anything far more expensive.

After the vinegar what did you rinse the tank with? If the answer is water and then left to dry then bad news it will have started to flash rust again. Following any etch process on tanks you needto rinse with water, and then follow with appz 250 mls of industrial Methalayted spirit IMS.
Keep the IMS away from paint and DONT smoke. Shake the tank around. Throw the 250 ml away ( it will evaporate in 5 mins) put another 250 ml of fresh clean ims in and shake the tank again. The IMS is hydroscopic eg water loving, it will mop up all the water from the seams.
Then leave the tank to air dry in a dry area. When the tank doesnt smell pop it in a airing cupboard or warm environment and Robert’s your uncle.

Steve

jmh · Mar 25, 2019

Used this on a U.S. spec T140 tank about a year ago, no problems so far. They also do a tank cleaner, de-rust, just ordered another kit to do the U.K. spec tank.
SLOSH ETHANOL RESISTANT PETROL TANK - SEAL
https://www.rust.co.uk/product/slosh-ethanol-resistant-petrol-tank-seal-7

Johno23 · Mar 27, 2019

I rinsed it out with water. I then just added petrol back into the tank and flushed again with that. The tank is now spotless, but obviously I don’t know how bad it was, although when I washed it out with the water loads of very thin strips ( for want of a better description) of rust came flooding out. We’ll see what happens in the future, but it looks great now, far better than I imagined.Ive read some leave it for a month or more if the tank is very rusted.
The vinegar I used was white distilled vinegar .............29p for 550ml .
I bought 20 bottles of it.

Absolutely no signs of “flash rusting “ so far..... :nenau

I have to say, I didn’t think it would work anything like as well as it has.But for a fiver,I had to give it a go and I’m delighted with the way it turned out.....................so far.

Hope to to have the bike ready in a few days....... :bounce1

mikeyboy · Mar 27, 2019

Might be worth a pressure test prior to an expensive paint job

Number 6 · Mar 29, 2019

Johno23 said:
The vinegar I used was white distilled vinegar .............29p for 550ml .
I bought 20 bottles of it.

Absolutely no signs of “flash rusting “ so far.....
I have to say, I didn’t think it would work anything like as well as it has.But for a fiver,I had to give it a go and I’m delighted with the way it turned out.....................so far.

Hope to to have the bike ready in a few days.......

Thanks.

Petrol tank question........

Ogmios

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Number 6

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Ogmios

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Johno23

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Deleted account 211025001

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squibb34

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Number 6

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steve hughes

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jmh

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Johno23

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mikeyboy

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Number 6

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