I know this is going to sound like a broken record but here goes. My a/c is losing its charge it started out needeing topped off once a year now i can put in a can or two and its gone two days later. I have added the dye and can not find it anywhere but on the shroeder valve used to charge it. I had my blower motor out and cleaned in there. There was some small junk some even damp but none of it had any green tint what so ever. I flushed out the evap. box and put it back together. The only place I can see any dye is on that valve. I read a post where someone said they had shaft seals leaking on the compressor. Can I buy the shaft seals and the parts for the valve somewhere? Thanks Adam