[bobbader]

Hi Bob. I've tried the method outlined in that tutorial. I don't know how far back in history these pictures go, but, given that even the best tubes available today are foreign made (as are the vulcanized valves in said tubes), that little brass tube does not pull out of the tube as easily as it looks here. I do not the top portion of the valve stem off when I do the job. I do use a razor knife to cut around the base of the valve, but I do it a little at a time around the circumference, at a 45 degree angle, until the entire stem comes out. The 45 degree angle of the blade allows that the hole made in the tube is not too big to seal around the metal stem once inserted. Next time you come to my shop I'll give you a demonstration. Good Luck. BB