93 Camry Air Conditioner Refrigerant? - Toyota Nation Forum : Toyota Car and Truck Forums
3rd & 4th Generation (19921996 & 19972001) Toyota Camry Discussion for years: 1992-1996 & 1997-2001 Topics of discussion range from fuel economy, safety, modifications, performance all involving America's favorite family car, the Toyota Camry.

 
LinkBack Thread Tools Display Modes
#1 Old 05-06-2010, 06:15 PM
Official TN Member
 
Join Date: Oct 2009
Location: Rhode Island
Posts: 516
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 5
Thanked 11 Times in 11 Posts
iTrader Score: 0 reviews
(Thread Starter)
3rd Generation 93 Camry Air Conditioner Refrigerant?

The air conditioner works awesome still in my 1993 Camry V6 LE! I noticed that it takes the old R12 Refrigerant, & not the 134A new stuff. If any of us older model guys need the R12, where would we obtain some?....Glad that mine still works good!.......
ricamryman is offline  
Sponsored Links
Advertisement
 
#2 Old 05-06-2010, 06:51 PM
Official TN Member
 
rusty9's Avatar
 
Join Date: Jan 2005
Location: Tampa, Florida
Posts: 994
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 4
Thanked 39 Times in 32 Posts
iTrader Score: 3 reviews
i dont know if they still sell it for automotive purposes anymore. they do make several compatible products like freeze-12.

retrofit to 134 is also a viable option, and its not that expensive at A/C specialists.
rusty9 is offline  
#3 Old 05-06-2010, 06:58 PM
TN Post Wh*re
 
Join Date: Oct 2004
Location: Wheeling, Illinois
Posts: 5,560
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 8 Post(s)
Thanks: 2
Thanked 198 Times in 189 Posts
iTrader Score: 0 reviews
R12 should still be available, but the average person can not just go to an auto parts store and purchase it. You need a certificate to show you have completed a course on automotive A/C in order to purchase it. You can convert the sytem to R134A as rusty9 suggested, but it will be a bit less effective on cooling down your car than the R12 that is currently in there. At least anyone can purchase the R134A.

Mike
Mike Gerber is offline  
#4 Old 05-06-2010, 08:08 PM
96 3MZ M/T
 
chronoti's Avatar
 
Join Date: Jul 2002
Location: Markham
Posts: 2,879
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 8
Thanked 81 Times in 81 Posts
iTrader Score: 0 reviews
pray to god it last till the new gas comes out and us 134a guys are grumbling, as for r12 it's so expensive that it is cheaper to tear the system down replace all the o-ring and filter, and clean out the old oil then to buy enough to recharge the system

Signature Suspended as it is in violation of signature rules.
^ and leaving it that way!

chronoti is offline  
#5 Old 05-06-2010, 08:42 PM
One with the force
 
Join Date: Feb 2006
Location: USA
Posts: 1,526
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 54 Times in 50 Posts
iTrader Score: 0 reviews
I converted one of my R12 vehicles to Enviro-Safe refrigerant. Works great and from past experience trying to switch R12 to 134a it works as good as or better than R12. No special oil or o-rings, but, like anything else, you'll need to fix leaks first. On an R12 vehicle it's best to replace as many o-rings as possible because their age makes them iffy.

1995 Camry Wagon LE. 2.2 4cyl, 5S-FE, Auto, 187K
Stillrunning is offline  
#6 Old 05-06-2010, 11:48 PM
Official TN Member
 
DallasToyo's Avatar
 
Join Date: Dec 2005
Location: dallas
Posts: 72
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 1
Thanked 0 Times in 0 Posts
iTrader Score: 0 reviews
Quote:
Originally Posted by Stillrunning View Post
I converted one of my R12 vehicles to Enviro-Safe refrigerant. Works great and from past experience trying to switch R12 to 134a it works as good as or better than R12. No special oil or o-rings, but, like anything else, you'll need to fix leaks first. On an R12 vehicle it's best to replace as many o-rings as possible because their age makes them iffy.
Two things:
The R134a molecules are much smaller than R12 therefore there needs to be refitting of hoses and o-rings or you'd be adding refrigerant daily.

In early 90's, a friend of mine stated buying up R12 at 99 cents from Walmart and now has a good stash of it. I guess if my 93 LE needs some, I'll have it pretty quick.

I just wish I had bought some Apple stock back then...
DallasToyo is offline  
#7 Old 05-07-2010, 05:42 AM
Official TN Member
 
Join Date: Oct 2009
Location: Rhode Island
Posts: 516
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 5
Thanked 11 Times in 11 Posts
iTrader Score: 0 reviews
(Thread Starter)
Can I use the Freeze 12 instead of the R12? I have seen it on Amazon for about $15.00 a can?
ricamryman is offline  
#8 Old 05-07-2010, 07:00 AM
96 3MZ M/T
 
chronoti's Avatar
 
Join Date: Jul 2002
Location: Markham
Posts: 2,879
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 8
Thanked 81 Times in 81 Posts
iTrader Score: 0 reviews
yes freeze 12 is a direct drop in for r 12

as for enviro-safe the r134a tuned systems hates it i just recently redid my system (expansion valve) and the gas was fully vaporizing before it got to the other side of the coils and giving me a crazy high side pressure cycling the compressor alot, now i'm running a r134a and enviro-safe mix with good results

Signature Suspended as it is in violation of signature rules.
^ and leaving it that way!

chronoti is offline  
#9 Old 05-07-2010, 07:19 AM
One with the force
 
Join Date: Feb 2006
Location: USA
Posts: 1,526
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 54 Times in 50 Posts
iTrader Score: 0 reviews
Quote:
Originally Posted by chronoti View Post
as for enviro-safe the r134a tuned systems hates it i just recently redid my system (expansion valve) and the gas was fully vaporizing before it got to the other side of the coils and giving me a crazy high side pressure cycling the compressor alot,
Not sure I understand, "r134a tuned", when replacing with Enviro-Safe you use less of it, 6oz of Enviro-Safe equals 16oz of 134a.

1995 Camry Wagon LE. 2.2 4cyl, 5S-FE, Auto, 187K
Stillrunning is offline  
#10 Old 05-07-2010, 07:46 AM
96 3MZ M/T
 
chronoti's Avatar
 
Join Date: Jul 2002
Location: Markham
Posts: 2,879
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 8
Thanked 81 Times in 81 Posts
iTrader Score: 0 reviews
there is a diffrence in r12 and 134a, op had r12 i have 134a, yes less is equals more but the thermal expansion is too rapid in the 134a vs the r12 system

Signature Suspended as it is in violation of signature rules.
^ and leaving it that way!

chronoti is offline  
#11 Old 05-07-2010, 11:38 AM
V8'sRGone
 
73sport's Avatar
 
Join Date: Nov 2005
Location: OR
Posts: 1,956
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 24
Thanked 202 Times in 161 Posts
iTrader Score: 0 reviews
I'm not advocating the use or experimentation of it but you R12 guys do have other options. One comes with some inherent risk should the conditions get just right . . . Again, I'm not advocating or suggesting you fill your car with this, but for kicks do a search on P r o p a n e.

I was pulling an old R12 system apart for multiple repairs of leaks. Before I started I pulled it down and pumped it full of the above gas for days test run. It works for cooling capacity! Although I'm not sure how you know if the stuff is dry enough for long term use. Do your research and weigh all potential risks before doing this type of conversion.

FWIW: old R12 household refrigerator pumps are a cheap vacuum pump that'll get you to 29" or so depending on their health. Attach some fittings and keep them closed up, they last for years.

ON ANOTHER NOTE: 134
The 95 1MZ still blows 38 degrees F at the center on medium fan with 50/50 cabin air/outside air. Surely it needs a new dryer, oil and 134. I can't belive it still works this well. I topped it off years ago when I bought it.


95 Cam, V6 1MZ, Auto A541E, LE >245,000 miles!

Last edited by 73sport; 05-07-2010 at 04:59 PM.
73sport is offline  
#12 Old 05-07-2010, 02:46 PM
96 3MZ M/T
 
chronoti's Avatar
 
Join Date: Jul 2002
Location: Markham
Posts: 2,879
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 8
Thanked 81 Times in 81 Posts
iTrader Score: 0 reviews
Quote:
Originally Posted by 73sport View Post
I'm not advocating the use or experimentation of it but you R12 guys do have other options. One comes with some inherent risk should the conditions get just right . . . Again, I'm not advocating or suggesting you fill your car with this, but for kicks do a search on P r o p a n e.

I was pulling an old R12 system apart for multiple repairs of leaks. Before I started I pulled it down and pumped it full of the above gas for days test run. It works for cooling capacity! Although I'm not sure how you know if the stuff is dry enough for long term use. Do your research and weigh all potential risks before doing this type of conversion.

The 95 1MZ still blows 38 degrees F at the center on medium fan with 50/50 cabin air/outside air. Surely it needs a new dryer, oil and 134. I can't belive it still works this well. I topped it off years ago when I bought it.

FWIW: old R12 household refrigerator pumps are a cheap vacuum pump that'll get you to 29" or so depending on their health. Attach some fittings and keep them closed up, they last for years.

also called envirofreeze seriously read the stuff posted about it

Signature Suspended as it is in violation of signature rules.
^ and leaving it that way!

chronoti is offline  
#13 Old 05-08-2010, 01:17 AM
New TN User
 
Join Date: May 2010
Location: Australia
Posts: 5
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 1 Time in 1 Post
iTrader Score: 0 reviews
Spose your lucky your not in australia, as its 100% illegal to deal with R12 now, all R12 cars must be retrofitted to R134a.

I do these all the time (I'm an auto electrician by trade and also have a my Air-con license). I've retrofitted many cars and in nearly all of the cars theres no difference in the cooling capacity. during summer we obviously do alot of aircon (honestly, about 2 weeks before summer, than all through summer till about a month after, most of our jobs are air-con related, its not uncommon to come in and see the day book with twice as many air-con jobs as any other job) and even on the hot day a properly retrofitted R12 system can easily get down to a frosty 4-5 Degree's (celcius...) (we usually test at the center vents, all vents open, fan on a medium to low setting (for example, on a setting of 2 in a 4 speed system), and flaps on recirc).

Yes the R134a will leech out of rubber piping faster than R12 hence why majority of R134a designed cars have solid tubing with the only rubber sections being from the chassis to the compressor its self, saying you'll be refilling daily is completely incorrect, if any system is releasing gas on a daily basis i'd be checking for leaks and also checking your pressures ! (alot of cars have compressors with relief valve instead of over-pressure switches, which inturn when the high-side pressure gets too high, just dumps gas rather than turning off). That said, yes, it will leech out quick, but you'll be back every few years not every day (tbh, most of the retrofitted cars i've done i havn't seen back for years and often only come back because the the "next service due" date sez so, not because the "air-con isn't cold".

I dunno what the A/C refrigerant lawa are like in other countries, but over here R12 is outlawed and i'd hazard a guess and say the laws would be somewhat similar in other elsewhere also (more-so because of all the global warming crap and so on, i know our A/C laws, even though R12's been outlawed for a while, the actual handling of gas and how A/C systems are serviced and general rules and regs have gotten very strict in the last year because of it).

so yeah, just get the car retrofitted, rather than trying to source R12 (whether legal or not in your country) or going down some exotic gas route. I've never had any problems with retrofitting and as i said, i've done literally hundreds of conversions in my time

ps, Re: changing oils, most people will just use a Polyester oil, as its compatible with the mineral oil of R12 and the PAG oil fo OEM R134a systems plus its much less hygroscopic (ie, doesn't absorb moisture nearly as much as PAG or Mineral oils do). As such, removing every last drop of mineral oil isn't as much of a concen as the Ester oil will just mix with it/absorb any left over mineral oil after evacuating the system and changing the reciever drier and eventually just deposit the mineral oil in an out of the way place, like the drier or accumulator, which will mean next time you get a service the any oil in these places will get removed when you replace these parts anyway

I suggest you just google airconditioning retro-fitting and airconditioning ester oil and such, theres plenty of good sources out there that'll fill you in as to what exactly has to be changed in a retrofit, what has to be added/removed and what the deal with tubing/o-rings/oils/etc are

Last edited by 2JZ-3VZ; 05-08-2010 at 01:31 AM.
2JZ-3VZ is offline  
#14 Old 05-08-2010, 05:44 AM
Official TN Member
 
Join Date: Oct 2009
Location: Rhode Island
Posts: 516
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 5
Thanked 11 Times in 11 Posts
iTrader Score: 0 reviews
(Thread Starter)
I think that if I ever need a recharge, Freeze 12 is my best option right now! I'm amazed that a 17 year old car has cold AC! I am not complaining however! (LOL)...
ricamryman is offline  
Sponsored Links
Advertisement
 
Reply

  Toyota Nation Forum : Toyota Car and Truck Forums > Toyota Passenger and Sports Car Forums > Camry and Solara Forum > 3rd & 4th Generation (19921996 & 19972001)

Bookmarks

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Toyota Nation Forum : Toyota Car and Truck Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



User Tag List

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome