R12 used with a R134 A/C pump?

[mkiiichip]

While there are tons of conversions from R12 to R134. I am wondering if there are any ill effects of using an R134 A/C pump on a R12 system and using R12 refrigerant.

i love the cooling capability of my 7m ac system (going jz), and would like to stay R12, is this an option?

 

[Jeff Lange]

While I am not sure about actually using R12 with an R134 compressor, why not use an earlier 1JZ/2JZ compressor designed for R12 (like from the JZZ30 or JZA70).

Jeff

 

[gennro]

http://www.autorefrigerants.com/co00033.htm

 

[rockn yota]

you shouldn't mix refrigerant's the oils don't mix and will sludge up as well as metering device being not compatible with different refrigerants.

 

[mkiiichip]

There are thousands of R12 cars running R134, and the biggest issue there is more leaks.
I know there are oils that will mix.
My metering device is staying with the same refrigerant, only difference is the pump.
Unless the two pumps have drastic volume differences, I dont see an issue.

 

[rockn yota]

that is correct you shouldn't have any issue's with metering device then, if i were you i would check into freeze 12 instead of 134a

 

[mkiiichip]

I was going to use R12, I dont know what "freeze 12" is (but a quick search shows a cheep R12 alternative?). I am trying to avoid using cheep alternative and R134. I have both R12 and R134 available and my experience R12 is way better.

 

[gennro]

I was going to use R12, I dont know what "freeze 12" is (but a quick search shows a cheep R12 alternative?). I am trying to avoid using cheep alternative and R134. I have both R12 and R134 available and my experience R12 is way better.

Well if you were going to go R12 in the first place then why even waste our time?

 

[JPsToyota]

Well if you were going to go R12 in the first place then why even waste our time?

He is asking about using a pump designed for an R134 system on an R12 system, nothing more.

The only people here wasting their time are the ones apparently not reading the original question well enough.

 

[Poodles]

Flush the system and do it right. The system is going to be opened anyway so it needs a flush and evacuation...

 

[87supraguy]

seals internally on the pump wiill eventually fail and you can say good bye to your compressor... plus r12 is expensive and in most states now adays you have to have a special license/ permit to even buy it let alone put it in avehicle... that's why most places charge a ton for old school a/c systems.... imo a COMPLETE waste of time and money to put a r134 compressor on unless you change the entire sytem out. i would swap out the entire system if A/C with r134 system if A/C was that important to me...

my opinion if you gonna half ass it don't do it at all.... you'll pay more for it in the end

 

[Mk3runner]

http://www.autorefrigerants.com/co00033.htm

I use the same stuff, works great.

 

[87supraguy]

either way G/L