fuel tank cut and weld
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  1. #1
    No its not an Opel Manta. nik347's Avatar
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    fuel tank cut and weld

    Allo all you techies. I need to cut off my fuel tank filler neck, weld a plate over the hole and cut and weld the filler neck in a different place. Worried in case of a big BANG!!!!!.
    Any suggestions etc would be appreciated please. Or does anyone know who would do this for me on the cheap. Live in Bromley, Kent.
    Thanks. Nik

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    Official RnS Addict fozwanger's Avatar
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    fill it with water and carry out the procedure
    Try and find a tech feature on why didn't it explode.
    That will tell you everything you need to know about fuel volatility
    :-)

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    Rods 'n' Sods Junkie GVTdrums's Avatar
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    Did this on mine. As previously said fill it with water. I cleaned mine out with detergent before hand. Unfortunately there is no way of knowing if or when it's going to bang. I would suggest you cover your arse and wear safety everything. You only have one body! Other than that good luck.
    Zetec powered pop on its way!
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    I once watched someone welding a tank filled with water and it still blew, Don't ask me how or why as i don't know but be careful.
    Could you not make a plate fit rivnuts with a seal to blank off and then do the same to fit new neck ???

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    Off the Xmas card list kapri's Avatar
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    My old firm used to repair tanks regularly. 48 hours minimum defume on a petrol tank. That was achieved by steam cleaning through for 1/2 an hour , then filling to th ebrim with water and chemical ( detergent) , leaving full for the rest of the day and then empty and repeat 3 times over the next 48 hours. Due to a guy in one branch not following procedure by doing a urgent repair ( within 24 hours ) it resulted in a fatality. We even once had a defumed diesel tank blow out of shape while drying with a torch , turned a square tank round.
    They now only work on diesel tanks, instant sack if caught with a petrol tank on the premises.

    I've done them at home with hot water and washing powder filled and left to soak ( repeated for 4 days) and then left empty for another before attempting anything .

  8. #6
    Stroker Kustom Jim's Avatar
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    Talking

    Can you set up a webcam broadcast when you do it?

    cheers
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    Official RnS Addict fozwanger's Avatar
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    It also depends on how long the tank has been empty. If it's been empty 20 years you'll prob be ok.
    I used to know a guy (no he's not dead before you ask) that used to check for contamination on old petrol station sites, and one of the tests they carried out on empty tanks to make them safe before excavation was to throw a lit match down the vent pipe.
    This is always a method you can adopt. Remember, the xplosion is only dangerous if contained.
    Kev, was it on here or on NSRA we had the discussion about fuel volatility in fuel tanks?

    Jeff

  10. #8
    Rods 'n' Sods Junkie GVTdrums's Avatar
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    Quote Originally Posted by fozwanger View Post
    .....one of the tests they carried out on empty tanks to make them safe before excavation was to throw a lit match down the vent pipe.
    Gulp!
    Zetec powered pop on its way!
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    Off the Xmas card list kapri's Avatar
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    Quote Originally Posted by fozwanger View Post
    It also depends on how long the tank has been empty. If it's been empty 20 years you'll prob be ok.
    I used to know a guy (no he's not dead before you ask) that used to check for contamination on old petrol station sites, and one of the tests they carried out on empty tanks to make them safe before excavation was to throw a lit match down the vent pipe.
    This is always a method you can adopt. Remember, the xplosion is only dangerous if contained.
    Kev, was it on here or on NSRA we had the discussion about fuel volatility in fuel tanks?

    Jeff

    Buggered if I can remember Jeff Thought it was on here , I'll have quick look.

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