Dash disassembly for evaporator & expansion valve access

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  • The Dark Side of Will
    R3VLimited
    • Jun 2010
    • 2796

    #1

    Dash disassembly for evaporator & expansion valve access

    Are there any how-to's for dash/center stack disassembly that don't rely on photos hosted on Photobucket?

    My AC has a leak which the leak detector says is inside the evaporator housing.
    I've previously taken the center stack down far enough to access the recirc flapper motors, as well as replacing the heater core.

    However, I don't know the next step toward accessing the evaporator and expansion valve.
  • MrBurgundy
    R3V Elite
    • Mar 2012
    • 5292

    #2
    If you're using chrome, they made an extension that bypasses photobuckets bullshit, so you can still see PB hosted pics.
    Current Collection: 1990 325is // 1987 325i Vert // 2003 525i 5spd // 1985 380SL // 1992 Ranger 5spd // 2005 Avalanche // 2024 Honda Grom SP // 2024 Yamaha XSR700 // 2024 Jeep Gladiator Rubicon

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    • ELVA164
      R3V Elite
      • Dec 2011
      • 4861

      #3
      You can reach it by removing the glove box, then the side panel to the left of the glove box. Dash can stay in.
      Interested in vintage cars? Ever thought about racing one? Info, photos, videos, and more can be found at www.michaelsvintageracing.com!

      Elva Courier build thread here!

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      • The Dark Side of Will
        R3VLimited
        • Jun 2010
        • 2796

        #4
        Originally posted by MrBurgundy
        If you're using chrome, they made an extension that bypasses photobuckets bullshit, so you can still see PB hosted pics.
        Ok, I downloaded one. What's the most recommended tutorial?

        I could just go straight to the R134 conversion thread, I guess.

        Comment

        • jeffnhiscars
          R3V OG
          • Jun 2011
          • 6010

          #5
          I wouldnt suggest ordering parts until you have removed the glove box and plastic covers to get access to the expansion valve, then rechecked for leaks. Those 2 rubber hoses may be leaking as well especially if you are running r134a
          Seat Shocks....I have passed the baton to John Christy from Ninestitch. Email John or Garrett at ninestitch1@gmail.com

          https://www.r3vlimited.com/board/sho...86#post4944786
          Alice the Time Capsule
          http://www.r3vlimited.com/board/showthread.php?t=360504
          87 Zinno Cabrio barn find 98k and still smells like a barn. Build thread http://www.r3vlimited.com/board/show...20#post3455220

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          • The Dark Side of Will
            R3VLimited
            • Jun 2010
            • 2796

            #6
            I'm not running anything right now because it leaks. The air con hasn't worked since I bought the car (2012?)
            Plan to run a drop-in replacement for R12.

            Comment

            • jeffnhiscars
              R3V OG
              • Jun 2011
              • 6010

              #7
              After 5 years w an "open" system you'll be very lucky if it's just a leak repair.
              Seat Shocks....I have passed the baton to John Christy from Ninestitch. Email John or Garrett at ninestitch1@gmail.com

              https://www.r3vlimited.com/board/sho...86#post4944786
              Alice the Time Capsule
              http://www.r3vlimited.com/board/showthread.php?t=360504
              87 Zinno Cabrio barn find 98k and still smells like a barn. Build thread http://www.r3vlimited.com/board/show...20#post3455220

              Comment

              • The Dark Side of Will
                R3VLimited
                • Jun 2010
                • 2796

                #8
                I'd worked on it summer last year before I went to Afghanistan for a year. The compressor was making noises then. I installed a new compressor since I've been back, but the system wouldn't hold vacuum. Blew a few psi of refrigerant into it and then went to work with the leak detector. That only lit up around the evap housing. I've done this before, just not on an E30.

                Comment

                • The Dark Side of Will
                  R3VLimited
                  • Jun 2010
                  • 2796

                  #9
                  Leak checker says leak coming from vicinity of expansion valve.
                  Replace o-rings and reseal.
                  Leak checker still says vicinity of diaphragm end of expansion valve... D-oh. New expansion valve on the way.

                  Comment

                  • jeffnhiscars
                    R3V OG
                    • Jun 2011
                    • 6010

                    #10
                    How did this work out ?
                    Seat Shocks....I have passed the baton to John Christy from Ninestitch. Email John or Garrett at ninestitch1@gmail.com

                    https://www.r3vlimited.com/board/sho...86#post4944786
                    Alice the Time Capsule
                    http://www.r3vlimited.com/board/showthread.php?t=360504
                    87 Zinno Cabrio barn find 98k and still smells like a barn. Build thread http://www.r3vlimited.com/board/show...20#post3455220

                    Comment

                    • The Dark Side of Will
                      R3VLimited
                      • Jun 2010
                      • 2796

                      #11
                      Just got the new expansion valve in today. Couldn't pull system down to 30 inches of vacuum... it stopped around 29.3ish. Currently sitting valved off to see if the vacuum leaks out.

                      Leak checking with the R12 replacement costs us a can every time it doesn't work. It's ~$8/can, so not a big deal, but no sense wasting it if we can figure out if there's a gross leak with the vacuum pump.

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