Air con hole

  1. norsa

    norsa old school painter

    Messages:
    1,622
    Location:
    Newbury UK
    My Volvo has a small hole in a bend on the 10mm ally pipe. I don't want to spend any more money on it as I need to sell it but ideally with air con working. Is it feasible that I can use a 10mm compression joint??
    Nick
     
  2. Bobtail4x4 Member

    Messages:
    592
    yorkshire
    yes but how will you re gas it?
     
  3. Kayos

    Kayos Member

    Messages:
    4,750
    Location:
    Yorkshire
    Kit from halfords
     
    slim_boy_fat likes this.
  4. norsa

    norsa old school painter

    Messages:
    1,622
    Location:
    Newbury UK
    Not sure they work do they. Ill have ATS do it. They do the work fleet tyres so I get discount.
     
    slim_boy_fat likes this.
  5. Kayos

    Kayos Member

    Messages:
    4,750
    Location:
    Yorkshire
    My freelander had pretty much zero pressure and it worked spot on after using one of those kits

    Also get a fitting with copper olives, you might be able to slide an insert in the pipe as well, stop it crushing the aluminium
     
  6. norsa

    norsa old school painter

    Messages:
    1,622
    Location:
    Newbury UK
    Valid point. The ally will possibly deform more readily than copper I guess.
     
  7. anto44

    anto44 Member

    Messages:
    1,200
    Location:
    ireland
    I welded up a small ali aircon pipe for someone a while back, so that's an option if a fitting won't work.
    20170902_140307.jpg
     
    gordon stephenson likes this.
  8. norsa

    norsa old school painter

    Messages:
    1,622
    Location:
    Newbury UK
    Id need to take the pipe off to do that. I fear it would cause me more issues by trying. It's a 98 Volvo 940
     
  9. Bullet2012

    Bullet2012 Forum Supporter

    Messages:
    974
    Location:
    Berks
  10. qwakers Member

    Messages:
    74
    Location:
    cornwall, united kingdom
    the regas cans will not work for a system that's been open to atmosphere. not enough gas in them, for a start... nearly empty? they'll just about do. also there's no way to pull the system down with a vacuum to get all the undesirable stuff out.
     
    supaimpy likes this.
  11. supaimpy Member

    Messages:
    64
    Dorset UK
    ideally use a Vulcan Lokring joint but the pliers will cost more than the cars worth! you need a proper car or bus AC specialist , also the system will need evacuating as said above so cans from halfrauds no use whatsoever.

    could tig the pipe , it should be purged whilst welding to stop scale on inside of pipe and if its been open any significant time a new drier cartridge , AC cheap repairs suddenly get expensive if they go wrong
     
  12. Kayos

    Kayos Member

    Messages:
    4,750
    Location:
    Yorkshire
    All those saying the halfords cans are rubbish, have you used them?

    I've revived a few systems, one has been going 3 years and it was empty when I started
     
    jsf55 and Barlidge like this.
  13. supaimpy Member

    Messages:
    64
    Dorset UK
    Well as an time served refrigeration engineer i'm sure after 40 years working in both service and system development for OEM level suppliers in the motor industry I know the difference between recharging a system using a prefilled canister and properly evacuating the system to a vacuum calculated from steam tables and then recharging to the designers calculated system charge weight. Ambient temperature affects charge weights massively .
    To directly answer your question yes, I've picked up the pieces from DIY repairs, including second hand car dealers trying to do repairs on the cheap with 2nd hand parts
     
  14. voipio Member

    Messages:
    700
    Cambridge, UK
    Copper fittings on an ali pipe that is likely to frequently get wet is not a good idea.

    Some years ago, I fitted a new condenser, vacuumed the system out, and regassed using a Halfrauds canister and the system worked well until the car was sold several years later.
     
  15. Pigeon_Droppings2 Member

    Messages:
    1,908
    Location:
    london
    Could you use one of those aluminium brazing rods instead....I once built an entire water pump lug with the stuff and it's held ever since.

    Impressive stuff....the price is impressive to but for a one off job maybe worth it?

    This is the one I used...

     
  16. Seadog

    Seadog Forum Supporter

    Messages:
    4,526
    Location:
    NE London - UK
    I've used SIF555 on one occassion. It's very impressive. It was interesting to see how much more tough the repair was compaared with the base metal. It's well worth having a few sticks to hand.
     
  17. jsf55

    jsf55 Forum Supporter

    Messages:
    328
    Location:
    Sunny Swansea
    I used the Halfords big canister on the wives Nissan note and revived a system that was 3 years without any cooling power, she's not complained so far
     
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