I noticed a click and than a complete stop on my Y motor..So I replaced the outside bearing,Y/Z Drive Gear/Pulley Combination Assembly,and the Y-Drive Belt Tensioner Assembly..

everything seemed to move free and smooth, so I put the motor back on the machine with the belt and it would move one direction only, so i'm thinking maybe a internal bearing? Not sure if I should

try to do it my self or just buy a new one.