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I've got a pin hole leak underneath the retaining straps on a tank that can't easily be replaced, I can remember using PORSEAL or POR15 (don't know which) but it didn't seem too great 10 years ago, I had a quick look on the net and theres a dazzling array of stuff out there. Any opinions on what works with modern (ethanol blend) fuels and what doesn't. Has anybody tried the 'slosh' stuff thats on ebay? Thank you
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Copey
Posted a lot
Posts: 2,845
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i used chemical metal on a fuel tank with no problems in the past
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1990 Ford Sierra Sapphire GLSi with 2.0 Zetec 1985 Ford Capri 3.0 (was a 2.0 Laser originally)
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rodney
Posted a lot
https://www.facebook.com/RD-vehicle-transport-and-recovery-services-525622614268010/
Posts: 1,677
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as above chemical metal , saved me years back , i tried petro patch and was wibblepoo,.
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facebook: rodney dean / rd transport
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May 11, 2013 21:32:45 GMT
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Hmm I remember petro patch as well, never worked for me either... I don't think chemical metal is going to do it, i'm guessing a pretty big area is getting thin although it's only leaking in one spot so i could really do with doing the whole inside...Any other suggestions.
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rodney
Posted a lot
https://www.facebook.com/RD-vehicle-transport-and-recovery-services-525622614268010/
Posts: 1,677
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May 11, 2013 22:52:51 GMT
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if you can remove and clean it out then weld it up ,
or i stuck a piece a metal over the hole (made by tank being stabbed) with chemical metal then put more over the plate,.
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facebook: rodney dean / rd transport
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May 11, 2013 23:04:52 GMT
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Pease IGNORE mrrodney as this is NOT only a DANGEROUS but STUPID practise.
WHY.....Well even after flushing out with copious amounts of water there is still a dammed good chance of petrol fumes being present in the tank and Welding will cause an explosion...SIMPLY don't DO IT
There are a couple of ways to do this either use chemical metal and spread over the affected area and then get some Petrol tank proofer off Frost Restorations or simply get a new tank
Dave
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i've welded/ modded loads of tanks if preped properly thiers no prob.
awaits ridicule.
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theres more to life than mpg & to much power is just enough.
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Most radiator repair specialists will be able to properly sort out a tank as well. Probably for less than a decent sloshing type compound.
Paul h
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yeah I've welded petrol tanks too without issues and lived to tell the tale........ if you can't smell petrol, there is no vapour to ignite, as its the vapour you can smell.
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OK LADS TAKE THE RISK don't CARE A HOOT BUT TOLD YOU SO
IT IS DANGEROUS TO DO SO
YOU KNOW BETTER
SO GO FOR IT
Dave
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MrSpeedy
East Midlands
www.vintagediesels.co.uk
Posts: 4,789
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The only really safe way to repair a tank is to solder a patch on using a large ELECTRIC iron such as tinsmiths use ans not with a flame.
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May 12, 2013 11:18:28 GMT
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Ok everybody just take 5, have brazed tanks before - however unless its just to repair damage you always seem to be forever chasing more holes, hence wanting to try the sealant type solution. Just though other people might have had some experiance with them
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smurf
Part of things
Posts: 829
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May 12, 2013 11:41:22 GMT
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I've welded bike petrol tanks
Drained them, pressure washed, steam cleaned then ran a bit of hose from an exhaust minto the tank for 20 minutes or so,
The exhaust gasses kill the last of the volitile compounds that cause tank explosions and i'm still here
Larnt that from an old timer that had been doing it for years
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Laser cutting and cnc punching (up to 3mm stainless and ali, up to 6mm mild steel)
Mail me a dxf file and i'll get you a price Metal folding and custom fabrication service also available
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May 12, 2013 11:41:53 GMT
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To weld a tank fill it with water and leave overnight before welding. This should give you a few hours to weld it up before the fumes start to leach out of the metal again. This is how they weld fuel tankers. Another method is to fill the tank with an inert gas like argon but thats a bit more tricky and expensive. As said though, sealant is probably an easier alternative.
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R.S. Autotech. Servicing/Repairs/Diagnostics.
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stefan
Posted a lot
If it isn't broken fix it till it is
Posts: 1,598
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May 12, 2013 19:29:36 GMT
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When ever I have welded a tank twice I have washed it out and the had a car running with the exhaust going into the tank to fill it with fumes still here and only have 80% burns so still so skin left to burn
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POWER IS EVERYTHING WITHOUT CONTROL
1985 Honda jazz 1997 Saab 93 convertible 2010 transit 280
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