How’s your Mondial's A/C working? | FerrariChat

How’s your Mondial's A/C working?

Discussion in 'Mondial' started by Wade, Jul 10, 2011.

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How’s your Mondial A/C working?

  1. Cools very well e.g. comparable to a modern car

  2. Just mediocre due to a poor design and/or may need a repair

  3. Doesn’t blow cold right now

Multiple votes are allowed.
Results are only viewable after voting.
  1. Wade

    Wade Three Time F1 World Champ
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    Mar 31, 2006
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    East Central, FL
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    #1 Wade, Jul 10, 2011
    Last edited: Jul 10, 2011
    I’m in the process of [finally] getting my A/C sorted and the thought of going back to R-12 is on the top of the list. Beforehand, I’d like to gauge everyone’s current experience with their car’s air-conditioning system regarding how well it cools relative to the outside temperatures. Ultimately, if the results are less than desirable, I may consider a redesign (or two).

    However, after searching through the Mondial Forum, I noticed that the AC system garners few complaints; am I to conclude that it’s effective and well designed since we don’t have threads like I'm fed up with my 308's lack of AC!!?

    So, how cool is your Mondial?

    Please comment based on your survey response and include outside temps, R-12 or R-134, and whether you have system 1, 2 or 3.

    1. OEM Mondial 8
    2. OEM Mondial QV/3.2
    3. OEM Mondial t

    While perusing the 308/328 A/C threads the unhappiness is nearly endless (from this year alone):

    A/C performance & data collection
    R12 or R134 AC
    A/C Conversion to 134-for 308
    So how miserable is a 308 without air conditioning?
    328 Air-conditioning

    Thanks in advance!
     
  2. JoeZaff

    JoeZaff F1 Veteran
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    Aug 5, 2007
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    I ran out of freon last year :(

    I've had a bit of difficulty finding some R12 and I haven't had any interest in converting.
    Luckily, a friend of mine just told me he has some extra R12, so hopefully, I will get some relief from the oppressive summer heat soon :(
     
  3. Michael B

    Michael B F1 Rookie
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    #3 Michael B, Jul 10, 2011
    Last edited: Jul 10, 2011
    The poll really does not have my answer so:

    (3) Mondial t coupe (probably has an cooling advantage over a cab with the hardtop window sealing capability). R134a refrigerant conversion.

    85 ambient day will produce 42 +/- degree out the center vents. This is only adequate cabin cooling because of the weak vent configuration but even so its still adequate while in business attire.

    I drove around on a day last week for a few hours non-stop. I had the car running almost the whole time. When it was stopped it was out of the direct sun w/ windows up (tinted glass and Berlinetta Shade on windshield). I really thought the A/C would struggle (and it did in comparison with say my daily late model Sedan) but it soldiered on and keep me right on the edge of comfortable.

    This is my 1st year with a lite tint on the side glass - with the Mondial greenhouse it seems to help.
     
  4. PV Dirk

    PV Dirk F1 Veteran

    Jul 26, 2009
    5,401
    Ahwatukee, AZ
    #4 PV Dirk, Jul 10, 2011
    Last edited: Jul 10, 2011
    If you want a/c to run good, put in the work or just shell out the dollars to have everything gone though. They are old cars and really need to be gone through. If you plan on replacing everything you'll have a good system, or you can do it like me and hope to just patch the weak spots. :)

    I like the responses right now, sounds like, if it works, it works good.
     
  5. JoeZaff

    JoeZaff F1 Veteran
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    #5 JoeZaff, Jul 10, 2011
    Last edited: Jul 10, 2011
    Oops, seems I misread your post. To answer your question, before it failed, it was better than the 308, but nothing compared to a modern car. My mechanic told me it wasn't worth converting to the newer refrigerant, which is why I have been holding out for some more R12.
     
  6. moysiuan

    moysiuan F1 Rookie
    Silver Subscribed

    Nov 1, 2005
    4,190
    Canada
    I replaced the compressor in my Mondial the system functions well, but I used a thicker than original o ring on the new compressor hose fittings, as I had a 134 conversion, and this is all that was available at the local Parts Source store. I think I overtightened these, and split the o ring. What is the "correct" o ring, in the green r134 material, for the this Sanden unit to the suction and pressure main hoses.
     
  7. davebdave

    davebdave Formula 3
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    Mar 18, 2007
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    Last season our A/C was very cold. This year it has quit working. I haven't gotten around to troubleshooting it but I assume the gas is low. I may convert to 134, I haven't decided.
    Dave
     
  8. Wade

    Wade Three Time F1 World Champ
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    Sounds like my experience with the '87 Fiero GT which, dare I say, shares the same basic design concept and technology era as the 328 GTB (2 seat, mid-engine, closed-coupe, mid 80's). When I bought the car it came with ice-cold R-12. A couple of years later I had it converted to 134 and from then on it was mostly adequate. Granted, the Fiero has half the cabin as a Mondial Coupe so hopefully the darker tinted windows will help make up for the difference.
     
  9. Wade

    Wade Three Time F1 World Champ
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    I agree so my plan is to restore the car's A/C system in order to obtain a "baseline" reference point.
     
  10. Wade

    Wade Three Time F1 World Champ
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    I like the way he thinks and would guess that "converting" would include an upgrade to the condenser and evaporator as well as the refrigerant.
     
  11. Wade

    Wade Three Time F1 World Champ
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    Hmm... I'm not here yet so I don't have an answer.
     
  12. Wade

    Wade Three Time F1 World Champ
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    Normally, switching to 134 for the N. Va area wouldn't be much of a concern or loss. However, I hear that you're in for another really hot summer (like the last two?). Fortunately, your evenings will always be much cooler than mine.
     
  13. afterburner

    afterburner F1 Rookie
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    Jun 20, 2008
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    '83 QV coupe, converted to R134, new compressor/clutch and sensors, system checked and working. The air exiting the center vent is very cold, but the quantity of air the fan manages to move is too small for outside temperatures over about 30°C with sun. At night without sun radiation, the a/c is sufficient. Overall, by no means at the level of a modern car.
    Also, the condenser (original, maybe not so good anymore) on my car is inadequate for providing enough heat exchange when the car is stationary on a hot day (its fan is working); the max-pressure switch shuts the compressor down. Once the car moves, the a/c kicks in again.
     
  14. davebdave

    davebdave Formula 3
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    Hey Wade,
    I'm down here visiting my folks in Sarasota, nothing short of artic cold would be acceptable in these parts. During the VA summers we only drive with the top down so I just want a little cool air blowing at traffic lights. I will have to weigh the costs of a vacume pump and gages against taking the car to a pro for r12. I plan to keep the car so r134 seems like a better long term plan. Unfortunately, I have read 134a is thought to be a nasty greenhouse gas and may soon follow r12.
    Dave
     
  15. SonomaRik

    SonomaRik F1 Veteran

    #15 SonomaRik, Jul 12, 2011
    Last edited: Jul 12, 2011
    I was talked into changing to non-factory specs to 'save a buck' and HATED IT. Spent the money, again to go back to factory R and been very please ever since.

    Blows cold and well all day long. I drive to Sacramento several times a week during the Summer with top down of course and although it will not freeze you with top down, it helps on those very hot days and that means it works fairly well in my book.
     
  16. cockrill

    cockrill Formula 3

    Jan 23, 2008
    1,088
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    Mine works great while driving. At idle, however, the compressor will occasionally seize causing the belt to slip and "squeal." My system has been "updated" -- I believe to a York compressor. I haven't spent the time yet to fully diagnose. I'll probably take it to an AC specialist one of these days...
     
  17. PATLEW

    PATLEW Formula 3

    Dec 3, 2007
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    I have about 4500 into repairs with mine and it always worked great when I oicked up from the shop but the major overhaul of the system worked for 2 weeks and back to hot air. Very frustrating because I am taking it back to shop so the fix it correctly like they said the last time. I hope my 360 will not have the same sickness as I am buying a coupe not a convertible this time.
     
  18. Wade

    Wade Three Time F1 World Champ
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    This is great information and confirms what I've read; cars that are using components designed for R-12 can't work as well using R-134, especially for me here in Central FL with a black car.

    Yes, 134 isn't "greener" by much.

    When I was stationed in VA I drove a two-year-old TR8 that had ice cold air from the foot-wells even with the top down. Nice times indeed.

    That's my plan, however, here's what I'm looking at:

    •Flush system
    •Remove compressor for oil replacement
    •Replace filter/dryer
    •Replace all O-rings
    •Replace expansion valve (suspected bad, further troubleshooting needed)

    And, considering that all of the a/c hoses are 23 years old will the R-12 permeate through them? A smart move “while I’m in there” would be to replace them as well.
     
  19. Wade

    Wade Three Time F1 World Champ
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    I had a car that did the same... the fault was due to an over-serviced compressor i.e. too much compressor oil.
     
  20. Wade

    Wade Three Time F1 World Champ
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    I hope I won't be paying that much for mine...

    But, as a forethought, I'm sure that a 20 year old 360 will cost almost too much to fix an inoperative a/c system.
     
  21. efinn

    efinn Rookie

    May 25, 2010
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    Stamping Ground, KY
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    Eric
    1988 Coupe, Converted to 134 before I owned it. Have been trying to find a leak for a while now. Ended up being the Pressure switch on the Receiver / dryer. Replaced the complete unit with one from Rutlands. Note the one I removed was stamped on the bottom "made in China". Replaced some o-rings and it will cool fine, but I have found that my blower control switch has a dead spot in it and if the control is setting on it the compressor will not kick on, but the blower will run, very strange to me. I find the car unbearable without some A/C and my wife concours.
     
  22. Lino

    Lino Formula Junior

    Jul 7, 2010
    923
    Montreal Canada
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    Lino
    My Compressor leaks at the the pulley. So no AC for me. I drive with the top down so no big deal. We only have about 2 to 3 week of stinking heat up here so not a big deal for me.

    I am holding out till I get the the service on the belts done.

    Lino
     
  23. dailyferraridriver

    dailyferraridriver Formula 3
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    Nov 12, 2010
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    Mine cools surprisingly well - the only issue is how hot the backs of the seat gets when sitting in the sun - my front is cold, my back is very warm.

    Erik
     
  24. dailyferraridriver

    dailyferraridriver Formula 3
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    #24 dailyferraridriver, Jul 21, 2011
    Last edited by a moderator: Sep 7, 2017
    Curse me, I spoke too soon. I dropped my car off today to get the speakers replaced at an audio shop. I walked in only wanting two speakers but the owner convinced me to replace the tweeters as well. Against my better judgement, I let him do it - plus a mini amp behind the head unit (Alpine):

    http://www.alpine-usa.com/product/view/ktp-445

    I drop the car off with ice cold A/C - I leave with boiling hot air. I figure it's because it's 100 degrees and the car was sitting in the sun, so I pull on the highway and push her. I wait a few minutes, no go - still boiling hot.

    I call Daniel from Bradan for suggestions - he walks me through the basics. I go back to the audio shop convinced they blew a fuse or forgot to plug something in. Sure enough, a cable was unplugged - he reconnected it - I figured I'm in the clear (fuse was not blown). Still hot, but again, I assumed I needed to drive a few minutes. No luck - still boiling. Any suggestions as to what is disconnected?

    It turns on/off fine - the blower goes slow/fast as usual. Hot is hot, and cold is even hotter!

    Attached is a pic of the white cable he forgot to connect...he couldn't find anything else he forgot. Any help would be greatly appretiated as I'll have to wait to bring it back to Bradan in a week or so.

    Thanks,
    Erik
    Image Unavailable, Please Login
     
  25. Wade

    Wade Three Time F1 World Champ
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    #25 Wade, Jul 22, 2011
    Last edited by a moderator: Sep 7, 2017

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