clueless on the amount of press.i don't use locktite,the fit is so smooth and tight I think locktite would just push out into the bearings,and do no good. I have seen some of the 67 and 1.01 cranks move apart,but never seen any twist. only done rs 45,67,and 91/1.01 cranks.this tool was made for a customer to do the 27 cc gas cmb cranks,it's not mine