Announcement

Collapse
No announcement yet.

r3v SChool me on AC

Collapse
X
Collapse
 
  • Page of 1
  • Filter
  • Time
  • Show
Clear All
new posts
Previous template Next
    #1

    r3v SChool me on AC

    I dont know shit about AC.

    My compressor is leaking and After 25 years i think it did a damn good job.
    Anyway ive decided i am gonna replace the thing with a OEM behr again.

    I just bought a new Dryer,but was wondering what else should i replace while it has no freon in it?

    Tags: None
    #2
    Didn't they go over this in the Automotive Classes you took when you became a wrench?

    Evaporator, condenser, orifice tube, expansion valve, compressor, and receiver dryer. You can leave the evaporator, the condenser and the lines, but at minimum, the other stuff should be replaced, and proper seals/ports for r134a will also be required, along with the proper amount of compressor oil.

    Comment

      #3
      ^yeah But that was over 6 years ago.
      I have never had the chance to do anything Ac related.

      I ended up getting a GM R12 To r134a conversion port. $1.67 and i charged it at work.
      well It worked, so now i have cold AC.

      Comment

        #4
        Correct me if I'm wrong, but don't the two have different molecule sizes? I was under the impression that they weren't compatible coolants and would require at a minimum new seals/ports?
        sigpic

        4 doors.. so much room for activities!

        IG @bluebombr

        Transaction Feedback:

        http://www.r3vlimited.com/board/showthread.php?t=323622

        Comment

          #5
          R134 may leak out due to molecule size (R134 is smaller) but if it works....why not run it til you need to change something, lol.

          Comment

            #6
            Usually you can get away with just switching the ports. Like gkurey said, run it until it leaks out. Once it becomes a big enough leak, then deal with the o-rings, etc.
            1974.5 Jensen Healey : 2003 330i/5

            Comment

              #7
              Typically, due to the mineral oil used in R12 systems, that coats the old lines and o-rings, conversion isn't necessary, though any part changed out should use barrier hoses, since new R12 style hoses will leak R134a like a sieve.

              Comment

                #8
                So today all my cold air is gone,its back to normal and there is dye all over the ports,

                I also noted that my Compressor was making a lot of noise today. Its also pissing oil as long as ive owned the car.

                Anyone know if this will fit my car?
                http://www.acpartshouse.com/inventory/100931-1978-1993-bmw-ac-compressor

                Comment

                Previous template Next
                Working...
                X