CJ750 toolbox
Quick fix for a leaking valve stem

Some inner tubes that come from Asia have quality issues, not so much with the tubes themselves but with the valve stems. When they fail, it's usually time to replace the tube... but not always.

I once bought a 1957 Ford Ranch Wagon, and the back end of it was full of old truck inner tubes. I saved a couple, and I'm sure glad I did.
I punched a 1/4" plug out of some of that inner tube rubber...
...which will get stuffed into the valve stem cap.
A tiny dab of grease completes the seal. Since the valve stem leaks, this guy gets a little extra twist with a pair of channel locks. Presto, no more leakage.