A/C Gone...

[Mopar1973Man]

Just a side note about vacuum on the system, I have seens many many systems with slow leaks that hold a vacuum for infinity but add pressure to the system and it will be dead in a few days or less. So do not trust your system based on a vacuum test alone. It will let you know if there is a big leak but won't help on the small ones. As far as adding oil to the system................Don't do it unless you replace a lot of components at the same time or blow a high pressure hose and it blows a lot of oil oit when it blew, the compressors come precharged with all the system should need to operate great. Too many times people add too much oil and then have a poor performing ac system as the freon capacity has diminished.

Thanks for the tip on the vacuum test... As for the oil... I learn my leason long ago about buying freon with a oil charge over time it will flood the system with oil and like you said decrease the performance. So very true... To empty the system of oil might be a bigger PITA that most think...

[cajflynn]

Why do you need A/C in Idaho? You will be working on covering your grille soon enough.

[Mopar1973Man]

Why do you need A/C in Idaho? You will be working on covering your grille soon enough.

Ummm... Like today it was 88-90*F it nice to have it when it is hot... Trust me... I'll be much happier when the temps fall to around 20-40*F... (Ahh...)

[JJK98CTD]

I like to leak test with nitrogen, and you could mix some referigerant with it too. And then do leak test electronically or with bubbles. I like the dye, but it can be blown around with the oil. Then you put black light on it and its all over.

[Mopar1973Man]

Funny part is with the UV dye I've got in the system it shows up like a sore thumb without a doubt... But in all the times I check the system I never found any leaking out... :banghead:

[JJK98CTD]

That is why, I like Nitrogen and soap bubbles. Also nitrogen can be used to sweep out a system of junk, when the lines are disconnected.

[Rick C in Oakville]

Can Nitrogen be purchased in aerosol cans, for backyard mechanic use?

[dracozny]

Can Nitrogen be purchased in aerosol cans, for backyard mechanic use?

never heard of that done considering the youngsters start huffing it. only places to get nitrogen are licensed gas supply shops as far as i am aware, plus a aerosol can will not be able to pressurize a system like this to 150 psi+