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Air Conditioner 'O'-rings - Boxer

Discussion in 'Technical Q&A' started by jselevan, Jan 15, 2004.

  1. jselevan

    jselevan Formula 3
    Rossa Subscribed

    Nov 2, 2003
    1,854
    I found a small leak in my radiator, and decided to remove and repair. As the condenser has seen its share of dings, I am repairing/replacing as well. I had the A/C system evacuated, and removed the lines to the condenser, as well as the filter/dryer and high/low pressure switch. As I removed the various lines, I see 'O'-rings on the ends of the various lines. Where might I get the specified sizes for these various o-rings? Is the material of concern in the R-12 environment? I could use the old rings as templates, but they have been stretched over time. Any help concerning these O-rings and material is greatly appreciated.

    I assume that since the system is now open to atmosphere that I must replace the filter-dryer. Is that correct?

    Thank you.

    Jim S.
     
  2. henryk

    henryk Formula Junior

    Dec 9, 2003
    479
    Door County, WI
    Would these be O-rings that are in the tapered portion of the male compression fitting?

    I came across these type of fittings when I replaced some hydraulic lines on my 85 Ford backhoe. It seems that they where common in the 80's. I was told to just replace these with standard 37 degree JIC male fittings (without O-ring grooves), and that the O-ring is not needed..........maybe the newer fittings are just better.

    I use Parker brand fittings and hoses.
     
  3. jselevan

    jselevan Formula 3
    Rossa Subscribed

    Nov 2, 2003
    1,854
    Henry - thanks for the reply. These are small o-rings inserted on the ends of the fittings going into the filter-dryer from the condenser, the evaporator, and the pressure switch. There are several different sizes (5 mm to 1 cm).

    Thanks. Any help is appreciated.

    Jim S.
     
  4. henryk

    henryk Formula Junior

    Dec 9, 2003
    479
    Door County, WI
    Why not just replace these these 15+ year old fittings, and hoses, with modern "common" fittings? Unless you insist on OEM............which is fine also.

    I would measure mine for you, but the A/C is working...........for now!!!!!!
     
  5. carlrose

    carlrose Formula Junior

    Nov 25, 2003
    295
    Hi Mr. Selevan,

    Here's a great source for AC parts:

    http://www.ackits.com/index.cfm?fuseaction=O-ring1

    I purchased the import metric & GM standard assortment to cover all bases prior to disassembly & actually the GM blue O-rings fit best (1988 328). AC O-rings are not the same material as standard hardware store variety. Also would reccomend the "Nylog" sealant. You'll also probably want to replace the filter-dryer concurrently; mine cross-referenced to standard Parker part.

    Good folks, rapid shipping - ask for Mr. Tim Bohringer.

    :) Carl

    PS: Went partially through 328 AC system filter-dryer & compressor front seal article written with pictures - drop me a line @ carlrosemd@hotmail.com and I'll send you a copy.
     
  6. jselevan

    jselevan Formula 3
    Rossa Subscribed

    Nov 2, 2003
    1,854
    Carl - thank you for the information. I will contact you.

    Jim S.
     
  7. Bob Downing

    Bob Downing Karting

    Nov 7, 2003
    62
    Full Name:
    BobD
    Another source for Ferrari A/C is Tim Stanford foreign cars in Miami, Fl
    He can provide compressors, dryers, o-rings etc. And very reasonable - I purchased a new Boxer compressor last March and dryer both for around 260$
     

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