Asbestos in Heat Exchanger Result

Discussion in 'General Discussion' started by Faust, Apr 25, 2017.

  1. Faust

    Faust Supporter

    Hi folks , got the results back from the suspect mesh in the H/Exchanger from a company called Bradley Environmental and it came back as Chrysotile ...in other words it is White asbestos.
    The sample i took it off was off a H/E off an import Cali motor ...but can only assume it is the same in them all ,as looking at them both now, that i am removing all the pods and everything else to the Y piece look absolutely identical .....So clean up time or repro's .
    Anybody with new repros are fine ...but anyone with originals i would strongly recommend you do something about it .
     
    vinnyboy, mgbman, Popsy and 14 others like this.
  2. Bad news, but eccellennt information, did you send the collars off as well? From the tubes?

    Sent from my Nexus 6 using Tapatalk
     
  3. Gosh, that's not good, given that the air is circulating around the cab.
     
  4. How do we clean up?
    Who will do it?
     
  5. Faust

    Faust Supporter

    No ..but they have already been confirmed as asbestos , and no big deal in expense to change to the rubber collars .
     
  6. Faust

    Faust Supporter

    it certainly is not .
     
  7. Faust

    Faust Supporter

    Do what Chris did ..a good way if you want to keep your hot originals ...peel back the casing on the HE and fillet out the mesh wash down the HE and crimp back the casing.
    No one else will do it, i would of thought mask and running water ...I don't know, who would want to be the owner of a 40 year bus with all is multitude of problems but us .
     
    nobbly likes this.
  8. I'd think one would need to be very careful when considering handling asbestos. As far as I understand, the problem isn't when it is in-situ, the problem is that when you work it and move it around it which releases the fibres into the air.

    I'd think you either need to leave them be, get a professional to dispose of whichever bits are made of asbestos and/or get a professional to remove it. I am not sure that a mask and running water is good enough.
     
  9. here are some general bits of advice I've found:

    Key takeaways:

    • Carry out a full site audit first and before any work begins.
    • Ensure that all operatives are informed that they are working with asbestos.
    • Provide all operatives with appropriate disposable masks and overalls to dispose of after each shift
    • Keep ACMs wet.
    • Remove delicately in one piece.
    • Avoid breaking or using power tools unless absolute necessary.
    I guess with respect to your own van, an audit might just be thinking about whether the garage is the best place to do the work, whether the air might be trapped, whether kids are around etc.

    I'm definitely not touching it.

    http://www.aic.org.uk/asbestos-precautions/
     
    LeeBBH likes this.
  10. i took my heat exchangers off and completely submerged mine and removed the collars.

    But I also had the hose runnings over the heat exchangers at all times when removing.
     
  11. Faust

    Faust Supporter

    This is off a type 4 H/E by the way ...wouldn't know about the other set ups .
     
  12. MorkC68

    MorkC68 Administrator

    useful information Ewan, the analysis work confirmed your suspicions :(
     
  13. Faust

    Faust Supporter

    Have you a type 4 engine ? it's basically the netting inside the body of the H/E used as a heat insulating packing that surrounds the fins where the hot air passes .
    Going inwards towards the fins you have a mesh ...a bit similar to sacking in a way , then there is a metal fine gauze then a tough foil last of all then the fins .

    It's the mesh that is the problem ...if you have JK or VWH repro's you are fine .
     
  14. Pudelwagen

    Pudelwagen Supporter

    From the Government hse website faqs:

    "Can I sell an item that contains asbestos?"
    No. It is illegal to supply any article containing asbestos, whether for money, or free of charge.


    Any bays for sale out there? You could be breaking the law if you don't remove all asbestos before selling!
     
    jivedubbin and Surfari like this.
  15. bernjb56

    bernjb56 Supporter

    I'm thinking along these lines too. if it's stable and contained I don't see a problem. Good to be aware that it's there though.
     
  16. I'm getting shut of mine now, before the price crash.
     
    nicktuft, Pony, jivedubbin and 2 others like this.
  17. Faust

    Faust Supporter

    Trouble is Bern, the mesh can be exposed to the draught when the snail fan blast air through , particularly if the exchanger is old and the foil packing has disintegrated and the warm air passes through the mesh ...might well brake particals off :eek: Think i might just leave my old system off all together and buy a big tub of deep heat .
     
    Merlin Cat and bernjb56 like this.
  18. There are two main forms of what is called 'asbestos' - and the white form - Chrysotile, is not that bad. It has had bad press due to 'blue' asbestos which is completely different in its physical and chemical makeup. The principal issue is that 'blue' is formed of a mineral type of thin needle, which sticks into your lungs and doesnt get dislodged when you breathe. White chrysotile is a helix shape and does not stick into your lung tissue, and it gets blown out when you exhale.

    Now Im not saying you can be blase, but the latest tests show that blue asbestos types are 100 times to 200 times more injurious than white, and that fibres from white asbestos are less risky to you than fibres from fibreglass insulation and the latest man-made heatproof ceramic fibres.

    So yes, remove the asbestos gauze - but dont overdo the panic.
     
    Spacecowboyuk, Popsy, Cov1987 and 8 others like this.
  19. Faust

    Faust Supporter

    Good point Bernard ...you never know ...another caning for VW
     

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