Found two 1LB cans of R12 in my late uncles garage. My 85 Westys AC worked when I bought it 20 years ago but only used it a couple of times at first and then not at all. It's probably been 15 years since I last used it and it blew cold during that time. Since then on the occasions when I turn it on just to run it no cold air comes out. I hear this old stuff is really expensive so since I have these (free) cans sitting here I'm tempted to hook up my hoses and recharge system. Any thoughts or input on this idea?Spencer85Westy