I was replacing the AC compressor coil and stupidly removed the shaft seal snap ring . The seal shot out and emptied all the freon and some oil . I put it back together and bought a vacuum pump to evacuate the system .

Any idea how much oil I should put in ? Do I need to put it in the compressor or can I draw it in after evacuate.

 

It calls for 140 ml, which is around 7 ounces. That is for a completely empty system. If you didn’t loose that much, you can just 3-4 ounces and then vacuum it.