I have one of these kegs and when I tested it today I found it is leaking from the gas post. The inside of the post is kind of weird, will one of these: http://www.williamsbrewing.com/FIRESTONE-NYLON-INSERT-P101C297.aspx
Work in there? I think that is why its leaking but I can't be sure. Does anyone know if anywhere sells the plastic dip tube? Because that looks like its in pretty bad condition too.
FOXX equipment sells all the old Firestone & John Wood parts, including the old race track style lid o-ring gaskets!!!
Page 14 of this catalog. http://www.foxxequipment.com/pdf/FoxxCatalog2013.pdf