Has anybody changed out the oil seal on a 95 year model radial AC compressor? Mine has started slinging oil when it runs. It still quite, cools good, and work great, just slinging "oil" out of the clutch area. Is there a link showing how to do it? I read that people say to change it out to a double lip seal. Does the compressor have to be removed? The freon removed? any help would be great.