Year: 1960
Make: Chrysler
Model: Saratoga
Engine Size: 383
Refrigerant Type: R12 / Freeze-12
My 1960 Chrysler has a Mark-IV under dash A/C system installed, which likely has been there since the car was new or nearly new. I've owned the car for just over 2 years and the A/C was working - blowing ice-cold until it lost all the refrigerant on June 29th, and I have since had the diagnosis of a bad seal(s) in the compressor, which is a York compressor normally used with these vintage Mark-IV systems. The shop said that if I could find a seal kit they could rebuild the compressor for me. Does anyone know where to find a kit for this old compressor? I don't have the model number but you can see photos of it at these links .
http://forwardlook.net/forums/photos/show-album.asp?albumid=284&photoid=5596
http://forwardlook.net/forums/photos/show-album.asp?albumid=284&photoid=5496
http://forwardlook.net/forums/photos/show-album.asp?albumid=284&photoid=4100
This system has been using Freeze-12 refrigerant.
Any help or suggestions are greatly appreciated.
Thank you,
Ian
ÃÂ http://forwardlook.net/forums/photos/show-album.asp?albumid=284&photoid=5596
Edited: Sun October 10, 2010 at 4:37 PM by mopar380
Shaft Seals
Gasket Kits
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Since you are in Canada, you have no choice on the refrigerants.
The "freeze 12" junk is just 134a anyway. Your original compressor seals were not compatible with the 134a in the BS12, and that is why they failed.
The replacement seals should be fine with 134a. Since you will be rebuilding the original pump, you should take the time to flush the balance of the system, and install 134a compatible lubricant.
The receiver / drier should be changed with this rebuild. All new driers are 134a compatible, the original one was not.
Just in case you need it, here is the Service Manual for the York type Compressors
B.
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"Among the many misdeeds of the British rule in India, history will look upon the act of depriving a whole nation of arms, as the blackest."
~ Mahatma Gandhi, Gandhi, An Autobiography, M. K. Gandhi, page 446.
He could always cross the border and get some R12 in Washington .........
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Ed
SoCal
Ian,
Milt Jones gathered a collection of old MARK IV A/C components into a sort of museum. Milt was a good friend, a MARK IV distributor and a long time director of MACS. I met him in about 1960 at the John E. Mitchell Co. at the MARK IV distributor's conference when I was just a kid. Milt got honorable mention in the recently released book "How To Air Condition your Hot Rod".
Since Milt recently passed on to that special place for A/C pioneers for a their next leadership role, his 3 sons are now probably the best source for knowledge and parts for MARK IV A/C units (J&N Auto Air Conditioning Co in Harlingen, TX.). They have compressors that look just like yours with the aluminum fins on the sides.
I had one but don't remember where it is right now. After touring a Harley plant and seeing how they paint the engine head black and secondary machining to make the outer edge of the fins silver, I wanted to make a hot rod A/C compressor with fins on the body and simulate the Harley look.
Your hang on evaporator, the Monitor, worked pretty good for it's day. One customer wrore in to the Mitchell Co. MARK IV division with his idea for your type Monitor. He said that by removing one of the louvers that a beer can will fit nicely down into the hole to keep refreshments cold.
York made a seal change when they changed the number of bolts that retain the shaft seal cover/retaining plate.
hotrodac
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Isentropic Efficiency=Ratio of Theoretical Compression Energy/Actual Energy.
AMAZON.com: How To Air Condition Your Hot Rod
Edited: Mon October 11, 2010 at 3:22 PM by ice-n-tropics
Ian:
BS12 was a reference to the refrigerant that puts "12" in a brand name like it was some sort of R12 material... Total B.S. In this case it is mostly 134a, which is not compatible with many of the R12 components.
Any refrigerant with a "12" in the brand name that is not straight up R12... is BS12.
B.
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"Among the many misdeeds of the British rule in India, history will look upon the act of depriving a whole nation of arms, as the blackest."
~ Mahatma Gandhi, Gandhi, An Autobiography, M. K. Gandhi, page 446.
To be more explicit, BS-12 is bull sh!t 12 if it is even close to real R-12. Real R-12 was developed by DuPont in the early 30's with the trade name of Freon. Even many people today call R-134a Freon when the proper name is refrigerant. R-12 was banned due some theory it may hurt the ozone layer that has yet to be proven. Can still be purchased in the USA at a price. Before all this governmental stuff occurred was selling in the 75 cent per pound range in a 30 pound cylinder. Now costing as much as 80 US bucks per pound.
But completely banned in Canada, its okay to use it if your vehicle came equipped with it, but if you were a couple of ounces low affecting performance, you have no choice to to retrofit it to R-134a.
The banning of R-12 caused worms to crawl out of the woodwork like products such as Freeze-12, claimed to be a direct replacement for R-12. It is not even close, its 85% R-134a with another refrigerant added, dang, can't think of it right now that was suppose to be miscible with the R-12 refrigerant, it is not, plus the R-134a in the receiver or accumulator would rot away the desiccant causing catastrophic to the compressor plus making a complete mess of sludge in the rest of the system. This is pure unadulterated bullsh!t. Is approved by our EPA because it does not contain CFC's that supposedly wrecking the ozone layer, but for no other reason.
What Bohica is recommending and I agree, is a complete conversion to R-134a, a lot on the subject in the FAQ section. Or if you want to maintain your vehicle in show condition, drive down here to get it done.
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