Hey Beav, AC question for you.

[wawazat??]

Carl,

I lost refrigerant pressure in my system (determined by a friend with gauges) after I removed the lines from the condensor and compressor when rebuilding the engine in my car. I just picked up new seals for the three connections I opened and I'll install them this weekend. After I re-assembled the system the last time the tech at the dealership evacuated and vacuum checked the system and proclaimed it leak free. No tracer dye was put in the system.

After replacing the seals, can I pressurize the system with compressed air to confirm that it will hold pressure before I have it eac'd and recharged again? My concern is that the compressed air will diffuse through the hoses where the coolant (R-12) did not. If you think this is a worthwhile check, what pressure should I apply to the system?

Thanks,
Todd