What type of a/c?

Bluesr20 · Aug 6th, 2003, 11:58 PM

alrite, im thinking about getting my a/c system re-charged, my car is a 91 nissan nx 2000, does anyone know what type it is? like ive heard of r134, r12, what kind do our cars use? can I buy the freon stuff and do it myself, and if so, what is all involved, where can i buy it? thanks

lovemyser · Aug 7th, 2003, 09:21 AM

Your nx is most likely a r12 a/c unit.
You should have a label somewhere underneath the hood.

I would convert to r134a. You can get a kit from walmart for $32.94
Search around for how to do it, its a pretty simple procedure.

BikerFry · Aug 7th, 2003, 12:31 PM

Convert to 134a?? I thought you had to change the whole damn system cuz the 134a would eat away the seals in an r12 system? Have you done this? If so, how long has it lasted?

bahearn · Aug 7th, 2003, 02:47 PM

Seals are an issue and the R134 needs a larger heat exchanger. 30 bucks seems way too inexpensive...

Bluesr20 · Aug 8th, 2003, 01:26 AM

why should i convert to a r134a system? what are the advantages, disadvantages?

BikerFry · Aug 8th, 2003, 07:01 AM

I didn't think that the R12 chemical was available anymore. I thought it had effectively been banned, in that you can't get an R12 system recharged. But if you can stay with R12 I'd stay with it. It'd be cheaper than converting your whole system and it blows colder air than the new systems. I'm pretty sure that the only reason it was changed to 134a is because of environmental risks. Damn tree huggers...

2SR20DE · Aug 9th, 2003, 02:28 AM

Quote:

Originally posted by BikerFry
I didn't think that the R12 chemical was available anymore. I thought it had effectively been banned, in that you can't get an R12 system recharged. But if you can stay with R12 I'd stay with it. It'd be cheaper than converting your whole system and it blows colder air than the new systems. I'm pretty sure that the only reason it was changed to 134a is because of environmental risks. Damn tree huggers...

You can still get R-12 but it's cost's way more than 134. And those kits they sell escape the r-12 and have some chemical to nuetralize the negative effects that the 134 would have on the seal.... so they say... i don't know anyone who has done it w/ one of those kits. Let me know if you try it. When I put my motor back in i'm thinking of eliminating it.

Bluesr20 · Aug 9th, 2003, 03:44 AM

Looks like I got some work ahead of me....Well, that is finding the damn stuff, or converting, hmmmm

toolapcfan · Aug 10th, 2003, 12:43 PM

I would put new seals in. There are four of them, two on the firewall and two that go into the condenser. Then there's a gasket at the compressor. Maybe $10 for those. Then take it to an A/C shop and have them pull a vacuum to see if it's all sealed up good. That shouldn't cost you more than $30. If they'll refill the system with 134a for a good price then go for it, otherwise buy the cans at the store and do it yourself. To do it right, you are supposed to replace a lot of stuff but you can have it run fine if you at least replace the seals.