i'm having a difficult time keeping my cup and cone bottom bracket bearing assemblies in adjustment. here's my process (we're assuming the bb shell is faced and the bb is in good shape):
- regardless of country of origin, i install the fixed cup with locktite 242 get it pretty tight.
- i almost always install the bb with decent to good quality loose balls (i stock 300 and 25 grade), 11x1/4inch on either side most of the time.
- i insert the spindle and install the adjustable cup and lockring with grease (should i use locktite on these as well? i hope not)
- i make my preload adjustment ( here i'm looking for minimal play and friction with the lockring tight)
-i mark the position of the adjustable cup in relation to the bb shell
- i install my test crank (an old sq taper crank with a one-key release cap) on the drive side and check again for play (the crank acts as a lever amplifying the play in the bearing assembly and the one key release cap allows me to install and remove the crank quickly and easily)
- if there is play, i loosen the lockring and rotate the adj. cup by 1 degree increments and tighten the lockring. i repeat this until the play as been eliminated.
-i take my test crank off, feel the bb (here, depending on the quality of bb, it goes from super smooth to alright)
-install the crankset
i take the ride out for a 10-15min test ride, and when i get back, the bottom bracket almost always has play. what the hell am i doing wrong, please help me!~!!!