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Replacing rudder bearings,
I'm replacing the rudder bearings on the P 33-2, the originals were quite worn. I manufactured two new Derlin bearings with an o/d of 3" and an i/d of 2.350" both 4" long. The problem is how to install the new ones.
The old bearings were also Delrin and were pressed into the fiberglass tube at the top and the bottom. I tried pressing them out but they wouldn't budge, so I tried to cut them out in two sections, they still wouldent budge. Finally I made four cuts and pried them out.
I was surprised to see that they were installed by drilling 2 small holes, (1/4)" 1.5" up from the bottom of the bearing going through the bearing and into the glass tube then injecting epoxy? to create a sort of dowell. I have no clue how they did this as it was done from inside the derlin bearing, and I dont know of any right angle drill small enough to fit inside the bearing. There is no access to outside of the glass tube to try and go at it in the other direction, It has to be done from inside the bearing.
Has anyone seen this before? Any thoughts on how to fasten them?
I'm thinking about drilling a small hole, vertically, on either side of the bottom bearing, half in the glass tube and half in the bearing then tapping it and setting some machine screws with a dab of epoxy. It's the upper bearing that poses the biggest problem because there's almost no access.