Originally Posted by Yak

Dudes - read the post. And check your own "grammer" at the door.

In order: byt = but; extra space between system and the question mark, grammer = grammar, etc. If you ain't gonna help, then don't post! And spelling and grammar corrections ain't helping!

At least CR from Texas asked constructive questions to clarify ambiguities in the admittedly poorly edited synopsis from the OP. He was trying to be helpful.

Pertinent questions for the OP:
How much R12 into the system, in pounds or kg please, not "2 cans."
Vacuumed for 1 hour, or 1.5 hours?
How long did you wait to see if it held vacuum after the pump was removed?
Synthetic oil? Not "synthetic PAG" hopefully. Ester, perhaps?
Any indications in the sight glass - bubbles, streaks, foam?

I'd recommend he read here, and see if that helps:

http://www.aircondition.com/tech/questions/82/

I don't know enough about A/C to offer specific advice based on the details, or I would.