All,
Thanks for the help. Tried JB weld and it set up and then got soft as soon as the water got hot. I let it set for two days.
Today I called a friend to come over and help me hold the darn little tube as I couldn't hold it and solder.
Richard,
I did exactly what you said and it seems to be in there very well now. Tomorrow will tell as I have to take one of my little dogs to the vets and that will build up plenty of pressure. I have just logged on and read yor advise and that is exactly what I did. Cleaned everything right down to the metal, Jack held the tube and solder while I heated it and burned the hair off one of his fingers. We put solder around the tube, pushed it in and let it set a few mintues. Then we put some more around the outside where they had originally had a little. I don't think that radiator was ever properly soldered as there was hardly no trace of solder on the tube or in the hold.
Ron