> It was weird though... when you pressed the valve stem from side to side
> it leaked _exactly_ like it would on a regular tire/wheel with a cracked
> (or unseated) valve stem. I can't figure out how it'd do that with a tube
> unless perhaps the tube or valve stem had a hole in it or something?
I had this happen, did exactly as you described; the brass in the valve stem
unbonded from the rubber (you could rotate the threaded part). Superglue
worked for me,
but the car is just sitting (sideways) in the garage, so I'm not worried about