Quote Originally Posted by David T View Post
Unless you have to remove the orifice tube, either because it is broken or plugged up, leave it alone. It is in a place where the pipe is bent and it can be difficult to remove without damaging that VERY thin aluminum pipe. Once you damage that pipe you are replacing the evaporator coil and it is NOT a fun job. I do not understand why some people feel they have to "convert". R-12 is readily available, it is not that expensive, and you don't need much.
On my Bronco, the orface had a bunch of junk on it. This was on a working AC. I only pulled it because it was easy and I had the system down for a condenser replacement. I haven't even looked at the orface location on the D yet. I guess it's no fun.