6 Signs your valve stem steal is leaking
The seals on top of the valves prevent oil in the valve cover from being drawn down into the engine, even though guides or sleeves on valves prevent combustion gases from passing through them. Inside a tiny collar, seals that are usually made of high-strength rubber fit over the top of the valve stem seals.
https://garimaglobal.blogspot.com/2022/08/6-signs-your-valve-stem-steal-is-leaking.html











