A friend, who is a commercial AC technician, is helping me get the '85's AC going again. We're using r12 freon. So far all we have done is replace the schrader valves and caps. He partially charged it and checked for leaks with a digital vacuum gauge and he said the micron reading was very good. Over 480 or something like that. We also checked for leaks with a leak detector under the hood and inside the car and there weren't any. So I guess I'm good to go! But I have some questions to relay to him because he dosen't work on cars normally...
1. What should the low side and high side readings be for r12 on the gauges?
2. He thinks he fully charged it but the compressor still cycles every 5-10 seconds. Should we adjust the pressure switch to a certain pressure?
3. When you check your gauge readings is that at a certain rpm or just at idle?
4. He wants to add some oil to the system... Is that 525 mineral oil for r12? And is the total oil charge 13oz?
5. Is there anything that we are forgetting or should look at?
We did vacuum it down with a electric vacuum pump and it held good vacuum.
Thanks for your replies guys!
1. What should the low side and high side readings be for r12 on the gauges?
2. He thinks he fully charged it but the compressor still cycles every 5-10 seconds. Should we adjust the pressure switch to a certain pressure?
3. When you check your gauge readings is that at a certain rpm or just at idle?
4. He wants to add some oil to the system... Is that 525 mineral oil for r12? And is the total oil charge 13oz?
5. Is there anything that we are forgetting or should look at?
We did vacuum it down with a electric vacuum pump and it held good vacuum.
Thanks for your replies guys!
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