AC Options When Repairs Needed
Guest
Posts: n/a
AC Options When Repairs Needed
I was wondering if anyone had an opinion about retrofitting to R134A as opposed to possibly scrounging up scarce R12 (or possibly the alternative, Freeze-12).
I recently had my 1988 diagnosed with "pinpoint" leaks that apparently were not fixable without replacing the entire compressor. For now, the system has been recharged with 2.2 lbs. R12 and is holding up fine. Don't know how long its going to last, but if I am looking at having to replace the compressor anyway, I was wondering what you considered the best option for me. I want to keep my car for a long time so I'd rather entertain a long-term solution rather than a short-term one.
Have any of you retrofitted with R134A? If so, what was the cost? How does the car run now? Do you notice a decline in cooling efficiency? Any other considerations?
Regarding Freeze-12, do you think it is a viable alternative to R12? What, if anything, needs to be replaced when charging with Freeze-12 (is it a true "drop in" replacement"). Do I need to replace any rings or other parts? Drier? Etc.
Thanks for your replies.
Joni (Houston, TX)
http://z-gal.nissanpower.com
<img src="http://www.compassnet.com/rojo/jonibutn.jpg">
I recently had my 1988 diagnosed with "pinpoint" leaks that apparently were not fixable without replacing the entire compressor. For now, the system has been recharged with 2.2 lbs. R12 and is holding up fine. Don't know how long its going to last, but if I am looking at having to replace the compressor anyway, I was wondering what you considered the best option for me. I want to keep my car for a long time so I'd rather entertain a long-term solution rather than a short-term one.
Have any of you retrofitted with R134A? If so, what was the cost? How does the car run now? Do you notice a decline in cooling efficiency? Any other considerations?
Regarding Freeze-12, do you think it is a viable alternative to R12? What, if anything, needs to be replaced when charging with Freeze-12 (is it a true "drop in" replacement"). Do I need to replace any rings or other parts? Drier? Etc.
Thanks for your replies.
Joni (Houston, TX)
http://z-gal.nissanpower.com
<img src="http://www.compassnet.com/rojo/jonibutn.jpg">
Guest
Posts: n/a
Registered User
Joined: Dec 2000
Posts: 342
From: Houston, Tx
Re: AC Options When Repairs Needed
From what I understnad.... R-134 runs best at a higher pressure, so your leaks will only leak faster and/or get worse. I would suggest next time it's all leaked out, to have a vacuum pulled on the car, diagnose how bad the leaks really are, and then pressurizing the system with air and locating the leaks. You may find out that it's merely o-rings that you need. Then decide whether you want to replace the leaking part(s), and go with a R-134 or R-12. I spoke to Kin about it (you remember him from the meetings right?), and he advised sticking with R-12. One of the reasons R-134A doesn't cool as much as R-12 is that it requires higher compression. Our compressors were designed to compress R-12 (which requires less).
Personally I've heard too many stories about R-134 to use it.
Personally I've heard too many stories about R-134 to use it.
Guest
Posts: n/a
Re: AC Options When Repairs Needed
I have the r134a conversion kit on my 89T....it has been on there for almost two years and is as cold as ever, and everything still works great...
I have no problem with the r134a...the conversion kit works excellently and was in my opinion, the best 30 bucks I ever spent on my Z
I have no problem with the r134a...the conversion kit works excellently and was in my opinion, the best 30 bucks I ever spent on my Z
Thread
Thread Starter
Forum
Replies
Last Post
the.momo.lives
300ZX (Z31) Forums
3
Jul 30, 2010 04:06 PM
RedZCar
300ZX (Z31) Performance / Technical
7
Mar 9, 2007 09:32 PM
Bookmarks
