Is there any performance drop if you have noisy hydraulic lifters? (tappets / followers / whatever name you like to use)
I can never tell if they are supposed to stay solid when the engine in running and you lose valve lift if they tap, or if they simply cushion the cam and the valve operates the same if noisy or quiet.
I can never tell if they are supposed to stay solid when the engine in running and you lose valve lift if they tap, or if they simply cushion the cam and the valve operates the same if noisy or quiet.