Air conditioning
The AC is shot on my 1988 Cherokee. Shop says I need compressor, evaporator, accumulator, and expansion valve.
I can get all the parts myself and replace. My question is, how do I convert to R134a? Is it just a matter of adding it since my system is empty? Also, will the compressor be rated for R134a? Thanks. |
Are you talking about the actual refrigerant?
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Originally Posted by randrx2
(Post 185138)
The AC is shot on my 1988 Cherokee. Shop says I need compressor, evaporator, accumulator, and expansion valve.
I can get all the parts myself and replace. My question is, how do I convert to R134a? Is it just a matter of adding it since my system is empty? Also, will the compressor be rated for R134a? Thanks. And you should make sure that the compressor is compatible with r134a and if you do the charge yourself, make sure you oil it with the correct amount of oil as r134a isn't self lubricating whereas the old r12 was. |
2 Attachment(s)
Retrofit is easy. Part # FJC. Inc 2538 But you should bring it to a AC shop so it's properly sucked down and refilled with oil and refigerant. It shouldint cost alot for them to do that.
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You might want to consider replacing your hoses with R134A compatible.
The R12 hoses do not have the barrier inside to keep the 134 from leaking out gradually. 134 is more reactive and volatile than 12. Hoses are 22 years old anyway. They have done their job. By all means have the final vaccum and charge done at a reputable and certified shop. Since you have to replace nearly everything, make sure all is 134 compatable. Don't go back to 12 after all this. |
The airconditioning in my 91 is shot what year did they switch to r134
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I will take it to a shop to fill. I do not have the equipment for that. I figure I can save about $400 on labor by replacing the parts myself. I had not heard of the hoses not being compatible. I guess I might as well replace it all though.
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If you are going to get all those parts, one thing you will want to do is get new hoses and o rings for them. R134A is a blended refrigerant and the lighter components will leak out of standard R12 hoses.
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anyone know where i can get replacement hoses? i can't find online anywhere. i think i am going to just get new ones made
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Originally Posted by randrx2
(Post 185138)
The AC is shot on my 1988 Cherokee. Shop says I need compressor, evaporator, accumulator, and expansion valve.
I can get all the parts myself and replace. My question is, how do I convert to R134a? Is it just a matter of adding it since my system is empty? Also, will the compressor be rated for R134a? Thanks. |
Originally Posted by randrx2
(Post 232920)
anyone know where i can get replacement hoses? i can't find online anywhere. i think i am going to just get new ones made
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my shop can only do the hoses and not the metal tubing, did you just do hoses or did they make exact replacements?
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Have you guys heard of the R12A refrigerant? Apprently it's ozone friendly and here in Canada (where our motto is NO!!) it's ok for the average joe to recharge with it.
Maybe it's too new for the beaurocrats to figure out how to screw us over on it.:devil: |
Originally Posted by randrx2
(Post 233047)
my shop can only do the hoses and not the metal tubing, did you just do hoses or did they make exact replacements?
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Originally Posted by Jamie57
(Post 233142)
Have you guys heard of the R12A refrigerant? Apprently it's ozone friendly and here in Canada (where our motto is NO!!) it's ok for the average joe to recharge with it.
Maybe it's too new for the beaurocrats to figure out how to screw us over on it.:devil: |
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