Just replaced the compressor, vacuumed and recharged the system and it isn't very cold.

I just noticed through the sight glass that the refrigerant is "boiling" when the car is off and has been off for a while.

What might that indicate?

1997 Civic cx hatch
d16y7

 

How long did you vacuum the system for? Any time the system has been opened it should be vacuumed down to 28" for at least half an hour.

 

How much R134a did you add to the system?