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Rudder tube cap Ocean 47
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Topic: Rudder tube cap Ocean 47 (Read 2943 times)
blue-max
Old Salt
Posts: 231
Karma: +1/-2
Boat Model: ocean 47
Boat Year: 2000
Rudder tube cap Ocean 47
«
on:
September 06 2023, 20:25 »
The rudder tube on my boat consists of a rubber hose clipped to the base with a cap through which the rudder shaft passes above the water line. The cap seems to be made from ferrous metal and its rusting. I wonder if this is the standard fitting or someone's modification. The cap will need replacing.I don't want to drop the rudder just for that. It should be possible to machine up a cap in two interlocking parts which could be fitted with the rudder in situ.
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Yngmar
Administrator
Posts: 1595
Karma: +22/-2
Boat Model: 40 Ocean
Boat Year: 2001
Re: Rudder tube cap Ocean 47
«
Reply #1 on:
September 06 2023, 20:55 »
Ours was a standard lip seal of suitable inner (rudder stock) and outer (rudder tube) diameter. I've replaced it when I had the rudder out with a new one with stainless spring.
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(formerly)
Sailing Songbird
⛵️ Bavaria 40 Ocean (2001)
blue-max
Old Salt
Posts: 231
Karma: +1/-2
Boat Model: ocean 47
Boat Year: 2000
Re: Rudder tube cap Ocean 47
«
Reply #2 on:
September 07 2023, 10:22 »
Mine is - if I understand your post - different and so non-standard?
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Yngmar
Administrator
Posts: 1595
Karma: +22/-2
Boat Model: 40 Ocean
Boat Year: 2001
Re: Rudder tube cap Ocean 47
«
Reply #3 on:
September 07 2023, 13:29 »
What is non-standard about it? Looks like a rusty old lip seal where the metal has rusted through the rubber body. That hose clip holds it in place (two in our case). Even if it's some custom machined plastic part, it's still suitable to replace with a lip seal. If you do not want to drop the rudder, Jefa sells a gaiter that you can glue around the post while in place, although it's designed to go on the aluminium extension of the rudder tube at the bottom, not the riser hose that you have.
https://jefa.dk/products/sealing-systems/
(the "unglued state" is what you want for installation with rudder in place).
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(formerly)
Sailing Songbird
⛵️ Bavaria 40 Ocean (2001)
blue-max
Old Salt
Posts: 231
Karma: +1/-2
Boat Model: ocean 47
Boat Year: 2000
Re: Rudder tube cap Ocean 47
«
Reply #4 on:
September 08 2023, 14:39 »
Thanks, I might try that and maybe epoxy coat the top of the old cap.
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tadej.mezek
Cadet
Posts: 18
Karma: +1/-0
Boat Model: B44
Boat Year: 2002
Re: Rudder tube cap Ocean 47
«
Reply #5 on:
September 24 2023, 15:27 »
I gave out to machine two halves of green self lubricating plastic. Did two ocean passages with this settings and works fine ... Can take picture of it within 10 days when I am on a boat again ... regards, Ted
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blue-max
Old Salt
Posts: 231
Karma: +1/-2
Boat Model: ocean 47
Boat Year: 2000
Re: Rudder tube cap Ocean 47
«
Reply #6 on:
September 25 2023, 20:34 »
yes Ted that would be most helpful - also if you could add some detail about the material (green plastic) that you used.
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tadej.mezek
Cadet
Posts: 18
Karma: +1/-0
Boat Model: B44
Boat Year: 2002
Re: Rudder tube cap Ocean 47
«
Reply #7 on:
October 15 2023, 19:31 »
HI As promissed photos from my replacement of this - 4000NM
With this no problem ...
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blue-max
Old Salt
Posts: 231
Karma: +1/-2
Boat Model: ocean 47
Boat Year: 2000
Re: Rudder tube cap Ocean 47
«
Reply #8 on:
October 16 2023, 09:25 »
Many thanks for photos
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tadej.mezek
Cadet
Posts: 18
Karma: +1/-0
Boat Model: B44
Boat Year: 2002
Re: Rudder tube cap Ocean 47
«
Reply #9 on:
October 17 2023, 13:32 »
This green material is names KOTERM (PE1000).
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Rudder tube cap Ocean 47