In my 87 Rx i need to have the A/C fixed.My question is since R12 refrigerate is outrageously expensive,I will be switching to 134A.Will the stock fans be enough to overcome the extra pressure of the 134A refrigerate or will i have to upgrade to another style that will pull more CFMs?

 

Thanks

You question makes no real sense. There are no fans that come into contact with refrigerant, so R134's working pressure has nothing to do with fans of any sort. It's purely a matter of hoses, compressors, and evap/condensor core's.

 

GD

+1 for GD

 

2K4 STI: The only thing that I can think of is that maybe you are talking about whether or not the fans will be sufficient to extract heat from the A/C? If so, the OEM fans should(and notice I said "should",because as we all know, anything can be improved on) work just fine. Of course, if you feel up to it, and your income allows it, you could always wire in a pair of slimline fans with all the bells and whistles, but be prepared for a long wiring session. I'm not saying that it will be hard, but I'm by no means saying that it will be easy.

 

Patrick

+1 for GD

 

2K4 STI: The only thing that I can think of is that maybe you are talking about whether or not the fans will be sufficient to extract heat from the A/C? If so, the OEM fans should(and notice I said "should",because as we all know, anything can be improved on) work just fine. Of course, if you feel up to it, and your income allows it, you could always wire in a pair of slimline fans with all the bells and whistles, but be prepared for a long wiring session. I'm not saying that it will be hard, but I'm by no means saying that it will be easy.

 

Patrick

 

After reading it over yeah i didnt make much sense

 

Yes i was refering to the fans being enough to extract the heat from the condensor enough to not blow a hose or seal in the system.

Wiring in the electric fans wouldnt be a problem if i do need them later on.

I converted my 90 Legacy over to R134a and it worked just fine. I wouldn't try to do it yourself though, you need to pull a vacuum on the system in order to get all the water out, and I'd recommend replacing the O-Rings in the system, although it's not 100% necessary.

 

If I were you, I'd take it to the dealer and have them evacuate the system to get all the R12 out, then they will install the O-Rings and R134a fittings, and charge the system with R134a and the proper oil. Air conditioning work, although not all that difficult, if you don't have the proper tools, you can easily break or damage components that are costly to repair, so it's best left to a professional. You might be able to get it done at an air conditioning shop, too, I don't know what your dealership charges, but the dealership I work at, we charge an hour to an hour and a half for an evac and recharge, plus refrigerant. Subies take about a pound and a half or so, at about $5 a pound, plus PAG oil ($5-10), O-rings (~$6), and the retrofit fittings (~$8)

Please see if this post helps you? I switched the R12 on my Brat to R134A and it has been 4 years and holding up. I did use one can of charge last year to top it off. However, in VA weather, it has been fine. Go to Autozone and rent a vacuum pump. You can do this fairly cheap if you have no leaks and parts are good. Good luck. aba4430

 

http://www.ultimatesubaru.org/forum/showthread.php?t=70729&highlight=aba4430

Thanks for the replies Guys.

I was an A/C tech in CA for 5 years so i know my way around an A/C system.

 

I just didnt know if the current system the way it set up would be able to handle the 134a conversion.

 

Ill give it a try and see what happens.If i need a better fan,then ill replace the existing A/C one with a higher CFM fan.And possibly the mechanical one too

 

Thanks :headbang:

If i need a better fan,then ill replace the existing A/C one with a higher CFM fan.And possibly the mechanical one too

 

Alot of people change the fans for various reasons. There isn't anything wrong with putting in more powerful slimline type fans that move more air. The only thing that you need to remember is that the nose of the water pump shaft(where the clutch fan mounts) may interfere with electric fan mounting, as in, the fan may not clear even though it is a slim fan.

 

Patrick