for some reason i think the schraeder valve is of a 1 way design ... because when i connected my freon adding hose to a can and i drilled a hole in the empty can and inserted my mity vac hand vaccuum pump to it i am able to get about 25 psi of vaccuum ( i think thats the unit .. or maybe its inches of mercury .. ..)
anyway , i added a can of freon .. and then i tried adding oil .. i had a partly used can which i tipped upside down hoping as the compressor kicked on and off the oil would be added into the system .. it's hard to tell by hand weight feel if 20 cc got in there or not ... i suppose i could dump some more $$ into a can of r 134a that has 2 oz of oil in it ... but i really need to get the can of UV .. so i can see if this mother is going to leak again after i replaced the o-rings ...
againg , i only have 30 days to return the salvage part back to the yard ..i suspect i will be surpised in the next day or 2 by what i f ind .. as the system is now, it is half charged and it does blow cold .. but not very cold..
incidentally i struck up a conversation with a guy getting some ac stuff in the store and he said R12, the real freyon ,the type of stuff used in refrigerators ,can get much colder than r134a ...
anyways.. i ll keep u updated with whether this nice system maintains its self and maintains its coolness for a long time...
