A/C oil
08-28-2014, 05:07 PM
#1
Burning Brakes
Thread Starter
A/C oil
I've replaced most of the components of my a/c system but not the compressor. I about to refill the system with R12. Do I need to add oil? If so, how much? Do I just let it suck in the same as the R12?
Thanks.
Thanks.
08-28-2014, 09:11 PM
#2
Melting Slicks
Compressors don't like it when you introduce an incompressible (like oil or liquid R12) the suction side when they're running.
Drain your compressor to see how many ounces of oil you get. Your system needs about 11 oz total of 525 viscosity mineral oil for R12.
My books recommend putting 6 oz. in the compressor, 1 in the drier, 2 in the condenser and 2 in the evaporator. How? I use plastic syringes to just inject the oil via the metal input lines.
It's a good idea to rotate the compressor manually first to ensure you don't have liquid in the piston bores.
The '65 Supplement has all the info you need. Get it, read it, and then hit it.
Mike
Drain your compressor to see how many ounces of oil you get. Your system needs about 11 oz total of 525 viscosity mineral oil for R12.
My books recommend putting 6 oz. in the compressor, 1 in the drier, 2 in the condenser and 2 in the evaporator. How? I use plastic syringes to just inject the oil via the metal input lines.
It's a good idea to rotate the compressor manually first to ensure you don't have liquid in the piston bores.
The '65 Supplement has all the info you need. Get it, read it, and then hit it.
Mike
08-29-2014, 08:18 PM
#3
Burning Brakes
Thread Starter
Compressors don't like it when you introduce an incompressible (like oil or liquid R12) the suction side when they're running.
Drain your compressor to see how many ounces of oil you get. Your system needs about 11 oz total of 525 viscosity mineral oil for R12.
My books recommend putting 6 oz. in the compressor, 1 in the drier, 2 in the condenser and 2 in the evaporator. How? I use plastic syringes to just inject the oil via the metal input lines.
It's a good idea to rotate the compressor manually first to ensure you don't have liquid in the piston bores.
The '65 Supplement has all the info you need. Get it, read it, and then hit it.
Mike
Drain your compressor to see how many ounces of oil you get. Your system needs about 11 oz total of 525 viscosity mineral oil for R12.
My books recommend putting 6 oz. in the compressor, 1 in the drier, 2 in the condenser and 2 in the evaporator. How? I use plastic syringes to just inject the oil via the metal input lines.
It's a good idea to rotate the compressor manually first to ensure you don't have liquid in the piston bores.
The '65 Supplement has all the info you need. Get it, read it, and then hit it.
Mike
Thanks for the help. You saved me from doing something stupid.
Joe