Gregoryb Posted November 15, 2023 Share Posted November 15, 2023 Anyone roughly know how many cans of r12 it take to fill the ac from empty? I know pressure should be around 35 psi Link to comment Share on other sites More sharing options...
Ohjai Posted November 16, 2023 Share Posted November 16, 2023 2.375 pounds of R-12 is used in the 91 Reatta. If your system is empty, be sure you evacuate the system with a vascuum pump for about 30 minutes. Then be sure it hold the vacuum. If it does not hold a vacuum, you have a leak and all your precious R-12 with disappear.. 1 Link to comment Share on other sites More sharing options...
Gregoryb Posted November 17, 2023 Topic Author Share Posted November 17, 2023 It’s not so how many? Link to comment Share on other sites More sharing options...
Ronnie Posted November 17, 2023 Share Posted November 17, 2023 2 hours ago, Gregoryb said: It’s not so how many? It's not doing what? And how many of what? Please make it clear what you are talking about. Link to comment Share on other sites More sharing options...
Gregoryb Posted November 17, 2023 Topic Author Share Posted November 17, 2023 The ac is not empty and the ac is not leaking sorry Ronnie Link to comment Share on other sites More sharing options...
ship Posted November 17, 2023 Share Posted November 17, 2023 Punctuation! Punctuation! I hate run-on sentences! Link to comment Share on other sites More sharing options...
Ronnie Posted November 17, 2023 Share Posted November 17, 2023 6 hours ago, Gregoryb said: The ac is not empty and the ac is not leaking sorry Ronnie I would buy 2 cans of Freon if the system is just low on Freon. You might not need to add all of the second can. The compressor must be running when you are adding Freon. Otherwise you won't be getting an accurate reading on the gauge and the Freon won't go in enough to fully charge the system. Open the doors or roll the windows down so the compressor doesn't try to cycle on and off as you add Freon. If it's a really hot day I put a box fan in front of the car to help keep the condenser in front of the radiator cool. I usually put the can of Freon in a container of hot water. Doing that causes the Freon in the can to expand and go into the system faster as the Freon in the can gets low. With the compressor running, keep adding Freon until the pressure is in the correct range on the low side pressure gauge and the air is cold coming out the vents. If the system is in good working order, the temperature from the vent should get down to about 40 degrees with the doors and windows closed. 2 Link to comment Share on other sites More sharing options...
DAVES89 Posted November 18, 2023 Share Posted November 18, 2023 15 hours ago, Gregoryb said: The ac is not empty and the ac is not leaking sorry Ronnie If the a/c is not leaking, where did it go? Did you bleed some off? Link to comment Share on other sites More sharing options...
Gregoryb Posted November 21, 2023 Topic Author Share Posted November 21, 2023 The ac is not empty and the ac is not leaking sorry Ronnie Link to comment Share on other sites More sharing options...
Gregoryb Posted November 21, 2023 Topic Author Share Posted November 21, 2023 I bought some of that 12a organic stuff that’s supposed to work and mix with Freon… well it don’t cool like r12 Freon so I bought some expensive r12 from a guy 4 cans. Link to comment Share on other sites More sharing options...
Gregoryb Posted November 21, 2023 Topic Author Share Posted November 21, 2023 Sorry ship I’ll try too be more proper. 1 Link to comment Share on other sites More sharing options...
Gregoryb Posted November 21, 2023 Topic Author Share Posted November 21, 2023 I figured since it’s organic and safe I’d let it out and put the good stuff in. Link to comment Share on other sites More sharing options...
Gregoryb Posted November 21, 2023 Topic Author Share Posted November 21, 2023 It don’t cool like r12 Freon. Link to comment Share on other sites More sharing options...
Ronnie Posted November 21, 2023 Share Posted November 21, 2023 1 hour ago, Gregoryb said: I bought some of that 12a organic stuff that’s supposed to work and mix with Freon… well it don’t cool like r12 Freon so I bought some expensive r12 from a guy 4 cans. Rarely does a cheap alternative work as well as the real thing. Hope the R12 works out for you. 1 Link to comment Share on other sites More sharing options...
Gregoryb Posted November 21, 2023 Topic Author Share Posted November 21, 2023 That is why I asked how many cans of gold do I need from empty? I have 4 now should I get more? Link to comment Share on other sites More sharing options...
DAVES89 Posted November 21, 2023 Share Posted November 21, 2023 You need 2 3/4 cans to fill from empty. Any opinion about adding oil if you bled the system? I have paid up to about $30.00 a can. As only the Red now is still R-12 my 8 cans in inventory should last me... 1 Link to comment Share on other sites More sharing options...
Gregoryb Posted November 21, 2023 Topic Author Share Posted November 21, 2023 I could be wrong but maybe the oil is heavy and some will stay in.🤷🏿 Link to comment Share on other sites More sharing options...
Gregoryb Posted November 21, 2023 Topic Author Share Posted November 21, 2023 I’m sure kicking myself for putting that 12 organic crap in I was just low not leaking 😡 Link to comment Share on other sites More sharing options...
Gregoryb Posted November 23, 2023 Topic Author Share Posted November 23, 2023 So I let the crappy organic stuff out and replaced with the good stuff it took more cans from empty then I thought. It took 5 cans to get the pump to stop kicking in and out and put one more in to put me at 35 psi man what a difference ice ice baby! Way cold now. 3 Link to comment Share on other sites More sharing options...
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