puntured A/C line

Discussion in 'General Motoring' started by Jesse, Aug 4, 2003.

  1. Jesse

    Jesse Guest

    I was testing my Radio by connecting it to the battery directly (still dead,
    grr) and when I pulled it off a spark flew off and burnt a hole in my A/C
    line running near the battery. It is about the size of a pencil head but the
    mechanic said it could not be patched and JB Weld wouldn't hold. Any other
    opinions on that? Sounds ify so I'll do the right thing a replace it. I have
    the Haynes Shop Manual but it isn't too clear. I've heard things about
    special freon compatible oil and rubber gaskets that need to be replaced and
    keeping all dirt out of the system. Any tips (or a walk through) about what
    is involved with replacing the line would be greatly apreciated.

    Jesse, Aug 4, 2003
  2. The lines all bolt on. However, ANY refrigeration system needs to be
    VERY clean, VERY VERY VERY clean inside to work right.

    JB Weld won't work, the pressures are quite high. And the freon's out
    anyway, so all you'll do is patch up a hole. I'd wrap it today (not
    tommorrow), with electric tape, if only to keep any junk from getting in
    until you can replace that hose.

    The local junkyard likey has a suitable one, and they're bolt on - 10mm
    bolts. I suppose the o rings need to be replaced too, but I didn't on

    Here's the catch. You can't recharge the system. If it's R-12, you'll
    end up onverting it to R-134a, if it's R-134a, you still can't. Why?
    Because that nice sealed system has been exposed. Sure, it might work,
    but you might waste the compressor or not get good performance.

    You need a shop that can 'pump down' the system, then charge it
    properly. Not cheap. Might as well let them replace the hose, too -
    that's the easy part anyway - just unbolt, remove, bolt in new. Remove
    the air inlet duct and it's just there. Pay attention to the origional
    routing. 10mm bolts...

    If you've got a friend that has the right pump and can pump it for you
    and refill it, it's no biggie. Just replace the hose, keep everything
    clean (don't wash it with water!), and pump/recharge.

    But do cover that hole in the meantime - at least dirt and oil and water
    will be less likely to get in.
    Philip Nasadowski, Aug 6, 2003
Ask a Question

Want to reply to this thread or ask your own question?

You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.