It's only charged with 134 till we get it working and for recovery purposes. The ac machine isn't set up to recover mp66 or hotshot,or r12. But like I said the r134 makes it a lot easier to remove while verifying operation of components. Hoses in and out of hot gas valve appeared to be different siz...

I have a 59 Deville I can't get ac to work. It has a new compressor from caddy daddy, the hot gas valve was sent off to Florida and completely restored and a new unequaled expansion valve. Upon opening the system nitrogen was blown through all components and hoses. Only the evaporator and condenser ...