I would like to know how to be able to tell if the hydrolic valv adjuster (sorry i dont have the right word) is in good condition.

I have 16 pcs at home and i plan to use them in the modded cylinder head.


At the same time i have 16 in the cylinder head on the engine and they sound fine.

But it will be much cheaper if i use the ones i have.

The car is a 405 mi16 1.9L