The valve stem sealing assembly makes that possible. Sealing is usually accomplished in one of two ways: conventional packing or bellows seals. Details of how these methods work, along with pros 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 ...

Step 3 Press the tire gauge against the valve stem in a swift motion, making a “flat” connection that seals completely. Swiftly remove the gauge from the tire’s valve stem after the stick ...