O'Day 27 rudder post
Gougen Bros. West system epoxy has a solution which I used on my O'Day 27.You inject resin loaded with graphite around the rudder post which forms a new bearing. You need to drop the rudder out of the boat so you can wax the post which keeps the epoxy from sticking to thr post when you inject the resin. while th post is out, drill 1/4" holes in the rudder post at the bottom and at the top where the old bushings are. Put the rurrer back in place,square it in place with weges ,inject the graphite epoxy mix top and bottom.Let it cure,tape over the holes to keep resin from dripping out,then work the rudder back and forth to break it loose. drop the rudder out so you can clean the wax off the post,reinstall and you will have a smooth working rudder. This is all explained in the booklet you can buy at most marine /boating stores that sell the West System.