92ShoOff
SHO Member
A few years back my dad did the R12 to R124a conversion on my '92 but after I took my last engine out I lost all the freon when I disconnected the stuff from the compressor.
I now have the new engine in and everything running, and worked on getting my A/C back up and running (we still have warm days here in Florida in the winter!). I started by hooking up a small canister of ester oil to the low pressure line, opened it up, jumped the wires on the the connector that my dad told me to (to keep the compressor clutch on), and then started the vehicle and put the A/C on full blast. I emptied the can of ester oil into the system, then hooked up a can of R134a next. The system sucked that can right out in a matter of a couple of minutes or so. We hooked up the second can of R134a but didn't notice that it was doing much. I had kept the can upside down above the port, shaking it a little every few seconds but it didn't seem like much fluid was leaving the can. I did notice that the gauge was in the red area with this second can of R134a but I honestly kind of ignored it because I couldn't figure out how it could be in the red after only 2 can. My dad decided to turn the can right side up and dunk it in a container of hot water.
I didn't see what happened with that second can when he disconnected it, so I'm not sure if it leaked stuff out after it sat connected to the system for over 20 minutes. When I came back from inside the house my dad just told me I needed another can of R134a because the thermometer that we stuck in the dash vent was getting below 50 degrees. When I got back with another can it was dunked it hot water for a bit before hooking it up to the system. I tried filling the system with the can in hot water, right-side up like we last did. I didn't notice this new can doing a whole lot either and after sitting upright for a bit I turned it upside down and shook it several times over a period of about 10 minutes. I disconnected the re-charge hose from the low pressure line and warm air came out of the can. I turned the can upside down and then started getting plenty of cold refrigerant out. But the thermometer still won't get lower than about 48 degrees, even while driving.
So all that said, do you think I have too much air in the system from holding those cans upright??? If so, do I just purge the air from the low pressure line? How do I know when to stop purging the air-- when refrigerant comes out of the low pressure line fitting?? Any help on this would be great!
Thanks,
Andrew
I now have the new engine in and everything running, and worked on getting my A/C back up and running (we still have warm days here in Florida in the winter!). I started by hooking up a small canister of ester oil to the low pressure line, opened it up, jumped the wires on the the connector that my dad told me to (to keep the compressor clutch on), and then started the vehicle and put the A/C on full blast. I emptied the can of ester oil into the system, then hooked up a can of R134a next. The system sucked that can right out in a matter of a couple of minutes or so. We hooked up the second can of R134a but didn't notice that it was doing much. I had kept the can upside down above the port, shaking it a little every few seconds but it didn't seem like much fluid was leaving the can. I did notice that the gauge was in the red area with this second can of R134a but I honestly kind of ignored it because I couldn't figure out how it could be in the red after only 2 can. My dad decided to turn the can right side up and dunk it in a container of hot water.
I didn't see what happened with that second can when he disconnected it, so I'm not sure if it leaked stuff out after it sat connected to the system for over 20 minutes. When I came back from inside the house my dad just told me I needed another can of R134a because the thermometer that we stuck in the dash vent was getting below 50 degrees. When I got back with another can it was dunked it hot water for a bit before hooking it up to the system. I tried filling the system with the can in hot water, right-side up like we last did. I didn't notice this new can doing a whole lot either and after sitting upright for a bit I turned it upside down and shook it several times over a period of about 10 minutes. I disconnected the re-charge hose from the low pressure line and warm air came out of the can. I turned the can upside down and then started getting plenty of cold refrigerant out. But the thermometer still won't get lower than about 48 degrees, even while driving.
So all that said, do you think I have too much air in the system from holding those cans upright??? If so, do I just purge the air from the low pressure line? How do I know when to stop purging the air-- when refrigerant comes out of the low pressure line fitting?? Any help on this would be great!
Thanks,
Andrew
