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Old 20-07-2014, 20:19   #1
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Lower Rudder Shaft Bearing and Collar

Any one had experience with removing and replacing the lower rudder shaft bearing and collar? Is the collar glued in with something like 5200, or is it more easily removed? I know the bearing itself is a simple replacement.

Many thanks

Pete
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Old 13-08-2014, 19:55   #2
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Re: Lower Rudder Shaft Bearing and Collar

To follow up FYI, we're on the hard now and have had the lower "collar" removed on both huls. The mechanic had to cut the old collars out because the old ones appeared to be epoxied into the hull. After removal there was some minor fiberglass repairs, and the mech re-installed using epoxy. This change out is not easy (about 8 hrs work) but is not the end of the world.

The reasons we did this change:
-There is lateral movement of the stbd rudder - probably 1/4 to 3/8". We replaced the bearing (white delrin (my guess) ball hole for rudder shaft. When the old one was removed we could see the collar (my name) had corrosion.
- We didn't know the status of the port bearing and collar, and there was only minor lateral movement.
- When the bearing was removed 3 months later it clearly had a lot of scaring from the collar.
- We went ahead with the removal and replacement on both sides as repair and preventive.

BTW, both of the SS set screws that hold the top of the rudder shaft had to be removed by ez-out. Each had corroded and welded into the aluminum rudder arm. The set screws are 10mm dia, 20mm long, 1.5 pitch, cup style end (not conical end but more pyramidal with a small flat end) if you need to purchase.
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Old 13-08-2014, 20:33   #3
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Re: Lower Rudder Shaft Bearing and Collar

If you need to buy new plastic bearings, this is the place. I paid $7.00 FOR A 2.5" x 3 long bottom bearing on our skeg mounted rudder. I use these guys regularly in my engineering, machine design job.

igus® - iglide® Plastic Bushings
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