14-10-2019, 08:07 PM
same as chris.
i dont think there is evidence to fit one way above another.
in my early days of sevening, the older members always suggested turned over edge facing up.
so thats what i do.
austin books suggest 18lb. myself i pull the head up to 20lb.
decent results will only be true on correctly flattend surfaces. so if you are just replacing without rebuild work, you may find different results.
ive tested on the bench, studs blocks, and nuts.
in good threads, with good quality studs. problems normally start at 30lb plus.
quality of the thread in the block, and your supply of studs. may get different results.
standard supply nuts, start to strip at 22lb. these are useually 1x depth nuts. a thread is aat its maximum effectiveness at 1 1/2x depth.
so if you are tightening at 25lbs, you may want to look at a higher quality nut.
tony
i dont think there is evidence to fit one way above another.
in my early days of sevening, the older members always suggested turned over edge facing up.
so thats what i do.
austin books suggest 18lb. myself i pull the head up to 20lb.
decent results will only be true on correctly flattend surfaces. so if you are just replacing without rebuild work, you may find different results.
ive tested on the bench, studs blocks, and nuts.
in good threads, with good quality studs. problems normally start at 30lb plus.
quality of the thread in the block, and your supply of studs. may get different results.
standard supply nuts, start to strip at 22lb. these are useually 1x depth nuts. a thread is aat its maximum effectiveness at 1 1/2x depth.
so if you are tightening at 25lbs, you may want to look at a higher quality nut.
tony