RE: F18 Elevator
A little play is expected (1/16) is ok (1/4) then you have yourself a problem. The pivots run through bushings and can be replaced if they are of a bother. You would have to heat up the bushings to remove them. Then you need to route out some bearing pockets for 8mm bearings and epoxy them in. Before you do all that replace your hardware with the ball links.