We decided to do the stupid and replace the heater blower fan a 85 240 wagon.

Discussion in 'Volvo 240' started by Marc, May 21, 2006.

  1. Marc

    Marc Guest

    Since we've almost got it all the way apart I want to replace the heater
    core. Can this be done without taking the A/C condenser out? If not is
    there a good site that shows me how or how can it be done?

    Marc.
     
    Marc, May 21, 2006
    #1
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  2. Marc

    User Guest

    Take the car to a shop that can discharge/recover the freon in the
    system.

    Disconnect the two hoses going to the evaporator from the firewall.
    Remove the four or so metal clips around the white plastic cover on the
    right hand side of the heater box. Give a tug and slide the evaporator
    out of the box and put it aside. Leave the condensor in the car next to
    the radiator, it doesn't need to go anywhere ;)

    Bob
     
    User, May 23, 2006
    #2
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  3. Marc

    James Sweet Guest


    Also plug off the hoses with something, I suggest replacing the
    receiver/dryer any time you open the system, it's cheap insurance.
     
    James Sweet, May 23, 2006
    #3
  4. Marc

    Marc Guest

    Thanks guys! The more I work on this car the less impressed I am with it
    from a service stand point. Since its a old freon system what do I need to
    upgrade it to a 134 system - seals and a compressor dryer of course.

    Marc
     
    Marc, May 23, 2006
    #4
  5. Marc

    User Guest

    At this point R12 and R134a are about the same price so leaving it as
    R12 would probably be the better choice. It will also function as
    designed, and no worries about underated hose and compressors seals and
    such. The lines that are separated should be resealed with the new
    oversize green or yellow o-rings.

    Bob
     
    User, May 24, 2006
    #5
  6. Marc

    James Sweet Guest


    The HVAC system is the Achilles heal of the 240, aside from that they're
    fantastic cars for the DIY mechanic. Don't give up yet on it.
     
    James Sweet, May 24, 2006
    #6
  7. Marc

    James Sweet Guest


    Huh? Last time I checked R12 was about 10 times the cost of R134a and
    you have to be licensed to buy it (I am) but I always just convert the
    systems I work on.
     
    James Sweet, May 24, 2006
    #7
  8. Marc

    athol Guest

    That'd be "downgrade", not "upgrade". The A/C will perform worse with
    R134a... For a system that was a bit borderline to start with, that is
    not good!
     
    athol, May 24, 2006
    #8
  9. Marc

    User Guest

    Just one example: http://store.lenzdist.com/

    R134a 30# cylinder $125 down from over $300 last summer
    R12 30# cylinder $189 down from over $200 last summer or $500 the year
    before or nearly $1000 a few years ago.

    Bottom line a serviceable R12 system can be returned to operating
    condition for quite a bit less than the labor involved to convert to
    134a. The JiffyLube and radiator places around here are charging about
    $2 an ounce for 134a and won't do any r12 systems. So if a shop still
    has r12 equipment available to do a recharge it will be cheaper.

    Bob
     
    User, May 24, 2006
    #9
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