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Accumulator o-ring help

posted by  1993volvo945 on  Sun Apr 24 12:47 CST 2005
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last visit: Sun Feb 24 06:27 CST 2008
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I messed up today. I tried to open the pressure sensor in the AC accumulator and the high pressure R134a just started oozing out. It snapped the yellow color o-ring inside it and when I tightened it back, the refrigerant was still leaking out. My question: Can I just replace the o-ring in the accumulator and recharge the AC system ? Or do I need to change the whole accumulator ? --suji
--
1993 960, 147K








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    Accumulator o-ring help

    posted by  Steve@CBE on  Sun Apr 24 22:24 CST 2005
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    im curious but why bother fixing a leak if you want to bypass the a/c compressor anyway?
    anyway to answer your questions..
    you cant fix the leak until the a/c system is empty of gas which it probably will be by now,get the o-ring from your dealer or an a/c shop.
    volvo do make a serp belt for the non a/c cars so you could use that... but if you dont want the compressor to work then just disconnect the electrical wire that goes to the compressor clutch then it will never engage. i would only do the belt method if there was a mechanical problem with the compressor pulley bearing.

    steve.








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      Accumulator o-ring help

      posted by  1993volvo945 on  Mon Apr 25 00:21 CST 2005
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      last visit: Sun Feb 24 06:27 CST 2008
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      hi steve,

      thanks for replying. the reason i wanted to charge the system and disengage the compressor is only to make sure there are not rusts developing later because of moisture entering etc. and yeah, the compressor clutch is in a mechanically bad shape and needs replacement. but then, its not in my top priority right now and so would want to wait and also make sure no rusts develop.

      let me know if i am doing the right thing. many thanks.
      --
      1993 960, 147K








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        Accumulator o-ring help

        posted by  Steve@CBE on  Mon Apr 25 22:35 CST 2005
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        yes if disabling the system for a period then best to leave it charged up,and never open to atmosphere as this would cause rust damage. you would be best advised to replace the accumulator when you finally get the compressor sorted and want it to all work again. accumulators contain a dessicant drying material to remove moisture and if left opened for too long it ruins them.
        good luck.
        steve.







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