Nad_Yvalhosert
I'm Awesome
Second: if you find no leaks, purchase a new drier. The desiccant is wasted after this much time.
Get a new orifice tube. Change ONLY the o-rings that you disturb
Add 2 oz of A/C oil into the drier. Reassemble and get to an A/C shop for a proper evac and vacuum service. Anything around 20 mins holding vacuum is decent, a half hour is better.
If it holds vacuum for 5 mins after the 20+ mins, charge.
This is important: Use 80% of the R12 quantity on the info sticker (it's either on the drier or the compressor)
Literature I've read says the old oil in the system is compatible with the new refrigerant, though if you want to go through the time of tearing apart the other parts to wash/flush and risk galling the aluminum threads, have at it
Get a new orifice tube. Change ONLY the o-rings that you disturb
Add 2 oz of A/C oil into the drier. Reassemble and get to an A/C shop for a proper evac and vacuum service. Anything around 20 mins holding vacuum is decent, a half hour is better.
If it holds vacuum for 5 mins after the 20+ mins, charge.
This is important: Use 80% of the R12 quantity on the info sticker (it's either on the drier or the compressor)
Literature I've read says the old oil in the system is compatible with the new refrigerant, though if you want to go through the time of tearing apart the other parts to wash/flush and risk galling the aluminum threads, have at it
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