There are many methods of sealing valve stems on control and isolation valves. When chosen carefully, a valve stem seal provides years of reliable service, reduces environmental emissions, and ...

Watch skilled mechanics in action as they replace the diesel valve stem seals of a Nissan truck with precision and expertise. From disassembling the engine to carefully installing new seals ...

Add more years of life to a worn plastic valve stem by wrapping it with Teflon plumber's tape. How to Fix a Leaky Faucet If ...

If your bike has Presta valves on its rims or tubes, you'll know that pumping the tires can be a fiddly business. The Zilch floor pump is claimed to address that problem, with head seals that don't ...