Air conditioning interchange | Ford Escort Owners Association (FEOA)
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Air conditioning interchange

Discussion in 'HVAC' started by EscortingShagWagon, Feb 9, 2018.

  1. EscortingShagWagon

    EscortingShagWagon FEOA Member

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    The a/c pump bearing is starting to make noise on my 95 wagon and i don't want to repair the clutch. My question was that a friend of mine has a pump off of his mid 90's v6 mustang, looks identical, 4 bolt mounting, are they interchangeable? did some Googling, with no success
  2. denisond3

    denisond3 Moderator Staff Member

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    Sorry I have no knowledge. However, both of those systems would have had the refrigerant R12. If I were putting an a.c. system back together, I would opt for using R134a.
  3. marclar

    marclar Moderator Staff Member

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    thats a really good question.
  4. EscortingShagWagon

    EscortingShagWagon FEOA Member

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    I agree on the 134, how ever, I do have a large amount of R12 in my possession lol to me, the only noteable difference is the location of the plug.
  5. madmatt2024

    madmatt2024 FEOA Member

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    It would be much easier to just change out the clutch than to recover, evacuate, and recharge the system. BTW, the changeover to R134A happened in 94 so your 95 should have that, not R12.
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  6. denisond3

    denisond3 Moderator Staff Member

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    Im just guessing, based on having a noisy bearing on the a.c. compressor of one of my 94LX Escorts, but the bad bearing was the one the pulley spins on. So even when the compressor internals arent turning, the bearing for the pulley is; and it was making a growl that I couldnt ignore in the face of an upcoming cross-country trip.
    I was glad to find that auto parts places list that pulley bearing.
    It was easy to remove the compressor, as the system was long since empty. It wasnt hard to remove the clutch and the pulley, but then the compressor was on my bench. The bearing comes off with the pulley. I took the pulley to get a new bearing installed. It took a press of course, plus having the right sized jigs, since the pulley itself is kind of easy to distort when being subject to sideways forces.
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  7. EscortingShagWagon

    EscortingShagWagon FEOA Member

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    How hard is it to replace that bearing? That' when mine makes noise is when it' disengaged?
  8. EscortingShagWagon

    EscortingShagWagon FEOA Member

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    @madmatt2024 I heard that also, haven T had a chance to look , should be 134 though?
  9. denisond3

    denisond3 Moderator Staff Member

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    The press was rated for 30 tons, and two jigs were needed that were just the right size to set on the table to prevent damage to the pulley. One supported the sides of the pulley just larger than the bearing outer race, the other pushed against the outer race just smaller than the bore the bearing was in. The pressure gauge on the press reached the 20 ton mark before the old bearing started moving out.
    Getting the pulley off the compressor wasnt too hard. I had to remove a "C" clip, after levering the outer face of the clutch off, after removing the nut holding the clutch onto the compressor shaft.
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  10. EscortingShagWagon

    EscortingShagWagon FEOA Member

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    I've got a 50 ton, should do it.. lol
  11. zzyzzx

    zzyzzx FEOA Member

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    Replacing clutches on these compressors is easy enough to do. Where it potentially gets hard is when you are trying to do it with the compressor refrigerant lines still connected.
  12. denisond3

    denisond3 Moderator Staff Member

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    Even with a new clutch, I dont care for having a 20 year old compressor with its 20 year old pulley bearing.

    If I get my credit cards paid down some month, I may a rebuilt compressor - just to have a new pulley bearing. I would leave its openings capped shut. I can see myself doing this for two of my Escorts that live down in TX. Then when the weather gets hot enough I would think about getting the a.c. system rehabbed.

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