You need someone to leak test the system.

You cannot do this with a partial charge. You could pressurize it with N2 and a little freon, then leak check it. Or you can fill it up with R-12 and test it.
Then, they will evacuate the system and fix the leak.

As a rule I wouldn't convert an R-12 car, but being in a country where R-12 is not avaliable presents a new level of problems. If you convert it- do it right and flush the old oil from the system. Put back a R134a oil , replace all the rubber o-rings, a new dryer and expansion valve. Then go.


Michael

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Michael McGuire
83 300d
01 vw A4 TDI
66 Chevy Corsa
68 GMC V6 w/oD
86 300E