Do yourself a favor only use a new compressor, replace the line with the orfice tube in it, the accumulator and the condensor. Once you get the Black Death it will not flush out of the condensor I dont care what any one says. The black color is caused by the burnt plastic parts in your old compressor that went directly to your condensor in a molten state then solidified and is stuck there partially blocking the condensor. That unneceraly increases head pressure and shortens the life of the new one {compressor}. Also be safe flush the evap with flush solvent and blow the lines clear of any black residue. Use 8oz of compatable refrigerant oil vacuum system thoroughly and recharge to the proper levels. This is the way I have always done it and have never had bad results or a comeback. I am an ASE certified A/C tech. Good Luck Garry