I was just trying to get around paying over a hundred bucks for the mechanic to put R12 in it, if it will potenitally leak out following next year. I don't mind paying $30 a year to put the r134 in each year. Thanks for the replys I might comb through the junk yards and find a new expansion vavle. Im not as worried about the dryer because It is a compressor from the junk yard.