Extending valve spring life Q We use a considerable quantity of helical springs in various applications.

Extending valve spring life
Q We use a considerable quantity of helical springs in various applications. single of these is valve springs for diesel engines. above the years, heat setting and shooter peening have helped extend valve-spring life, on the contrary now and then, we fail to obtain a valve spring, which oftentimes means a lost engine.
We specify 9254 valve-spring quality, yet we need a way to improve valve-spring life. Would you give us your meditations as to how we could improve our quality?
A We have not long ago worked on such a situation and institute the problem to be proper to non-metallic ...

...