mud runners rebuild

the bearings are in the freezer and i had an idea the 2 holes that let oil go to the bearings what would happen if you made them bigger
 
well i finaly found out why my blaster decided to sh*t it self it wasent a air leak it was the crank someone had put a new bearing in the bottom part of the rod and they didend put both washers back in it and it had too mutch side to side play