grinding the stud tip should NOT be required
as the set screw inside the polylock, binds the threads by pressing against the tip of the stud thus stretching and tensioning the threads on the stud against the polylocks, grinding can not increase the holding potential,and is ill advised as it may result in micro crud getting in the oil
most experienced valve adjusters set the rockers , screw the set screw down until its firmly in contact with the stud and THEN TIGHTEN THE outer hex POLY LOCK NUT ABOUT 1/8 turn binding the setting
this is an area that causes many newer guys problems ,a slight clicking noise at idle in any hydraulic or solid lifter valve train is usually the result of clearances in the valve train, obviously you should have, some clearance, to allow oil flow thru the lifters to provide lubrication on...
garage.grumpysperformance.com
having the correct tool if your using jam nuts with locking Allen keys helps
experience, judgment and practice helps, especially with locking rocker nuts and rocker girdles
you generally back out the locking Allen key in the center and adjust the rockers just like you normally would do, ,once the nuts adjusted correctly with a 1/4 turn past the point where the rocker stops clicking on hydraulic lifters or at the correct lash with solids using a tappet gauge you use the t-handle Allen key to lock the nut in place, but you ll eventually find they occasionally tend to loosen over time so the proper cure is to run the center Allen key in, until its solid, against the top of the stud the nuts locked on, then loose the nut about 1/10-1/8 turn, re-seat the locking center stud and then turn the loose the nut in again about 1/10-1/8 turn, back to its original location, this will preload the center lock nut, stud, and lock nut threads,a couple thousands assuring a firm seat and the nuts won,t back off.
https://www.craftsman.com/products/craftsman-mach-series-14-piece-3-8-t-handle-driver-and-bit-set
