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cast iron radiator leaking!

Discussion in 'Plumbing and Central Heating' started by powelly79, 1 Mar 2011.

  1. powelly79

    powelly79

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    Hi, Have recently bought a cast iron radiator that was supposed to have been pressure tested. But when it has been installed a small pit mark started blowing water out. It is going to be a bit of a hassle to sort this out from where i bought it from so was wondering if there is any tried and tested method of repairing it. The thing is about 2 metres long by 2 foot high so weighs a bloody ton so don't really want to be taking it anywhere either if i can help it. Any advice would be greatly appreciated thanks.
     
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  3. tincup

    tincup

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    If it wieghs a ton at todays scrap prices about £120
     
  4. Agile

    Agile

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    Thats one of the problems with buying second hand!

    I would drill and tap it to 4 mm or larger if that gave an adequate depth of metal.

    Then use a stainless screw and use araldite under/over the head.

    Tried but not guaranteed. There is another square metre or so of rad surface to start to leak!

    Tony
     
  5. doitall

    doitall

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    I assume the OP means a sectional radiator, in which case simply take the damaged section out and remake the rad, unless it the end section.
     
  6. Agile

    Agile

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    Assuming the leak is in the midde then there could be about 6-10 sections to be removed and resealed.

    As it could be up to 50 years old I suspect at least one of the couplers will be rusted solid.

    Even if he did manage that the trauma might mean that he has two new pinhold leaks when he has finished!
     
  7. HERTS P&D

    HERTS P&D

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    The OP has 3 options:
    1. Try what Tony has suggested.
    2. Bring it back and get a refund.
    3. Or scrap it and fit a new rad.

    Andy
     
  8. Nige F

    Nige F

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    What - you sold it to them :mrgreen:
     
  9. Get a welder to repair it.
     
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  11. powelly79

    powelly79

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    Thanks for all the advice it's a 4 column rad so the hole isn't easily accessible have been reading up on jb weld does anyone have any thoughts on using an epoxy to seal it.
     
  12. Burnerman

    Burnerman

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    Devcon epoxy putty is actually amazing stuff - I've plugged a frost cracked cylinder block from an old Fergie with it. 3 years and still holding!
    Much depends on how you can prepare the surrounding area though.
    Cast iron can be bronze welded easily enough, and I'd do that if possible.
    John :)
     
  13. powelly79

    powelly79

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    would a local welding firm be able to do the bronze welding do you think?
     
  14. Burnerman

    Burnerman

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    Any old timer with oxy acetylene gear would give it a go assuming that the hole is reasonably accessible. He'll use a huge nozzle with an excess of acetylene, and he may prefer to drill the hole out a little to flow the bronze in.
    John :)
     
  15. powelly79

    powelly79

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    Thanks for that will ring round a few places see what they say.
     
  16. Nige F

    Nige F

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    I`d almost forgotten about the exess acet. :oops: Why are all these posters nowhere near $ussex -I could earn a few xtra bob ;)
     
  17. doitall

    doitall

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    I would suggest that it's cracked and not a hole. :rolleyes:

    For Agiles benefit, you can take any section out without disturbing the others.
     
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