How to Tighten a Valve Stem

by Jay Angel

Valve stems are used to keep the air in a tire. They have a pin in their center that is depressed in order to allow air into the chamber, then immediately pops up to keep the air in. Once in a while this stem will become loose and cause a leak in the tire; when this happens, the valve stem must be tightened.

Turn the valve stem clockwise as far as you can with your fingers.

Hold the valve stem while you turn the valve tool clockwise onto the top of the valve stem. This action will attach the valve tool to the valve stem.

Continue turning the valve tool clockwise until the stem is tight.

Hold the valve stem and turn the valve tool counterclockwise to remove the tool from the stem.


  • Do not overtighten the valve stem. Doing so can cause the stem to break and allow the air to escape.

Items you will need

About the Author

Jay Angel has been a writer since 1998, specializing in scientific writing, as well as articles about fishing and hunting. He worked as a columnist for the Illinois newspapers, "Daily Chronicle" and "News Tribune." Angel has a Master of Science in fluvial geomorphology from Northern Illinois University.

More Articles