Corrosion on rudder stem
Printed From: myHanse.com
Category: Hints & Tips
Forum Name: 350
Forum Description: 350 Hints and Tips
URL: https://www.myhanse.com/forum_posts.asp?TID=12637
Printed Date: 27 March 2026 at 03:51
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Topic: Corrosion on rudder stem
Posted By: peterr
Subject: Corrosion on rudder stem
Date Posted: 01 April 2021 at 18:11
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Do i have to be worried? It is corrosion on the stem that goes in the rudder. Best Peter
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Replies:
Posted By: peterr
Date Posted: 01 April 2021 at 18:13
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The picture won't load, so |
Posted By: peterr
Date Posted: 01 April 2021 at 18:17
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Posted By: cptgood
Date Posted: 01 April 2021 at 19:03
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Hi,if you search the forum you'll find plenty of infos. Mine was less corroded than yours and I changed it (3k euros) after suggestion from Jefa rudders https://www.myhanse.com/rudder-post-corrosion_topic12320_post101642.html?KW=rudder#101642" rel="nofollow - https://www.myhanse.com/rudder-post-corrosion_topic12320_post101642.html?KW=rudder#101642
------------- Hanse320 - Hull#127/08 - Wheel - ST headsail - Yanmar 3YM30 - SD20 |
Posted By: peterr
Date Posted: 02 April 2021 at 06:22
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Thank you.I will contact Jefa Steering. I think the aluminium has received som antifoul, not much but it seems to be the explanation. Best regards Peterr
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Posted By: Downeaster
Date Posted: 04 April 2021 at 22:28
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As far as I know, Jefa rudders are sold through. Given that, you would need a lot of corrosion to weaken the rudder to the point of danger. As suggested, share the pictures with Jefa. I did, and they said it was ok. Just replacing it because it looks bad doesn't consider the actual physics or material science of the situation.
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Posted By: Downeaster
Date Posted: 04 April 2021 at 22:31
You should use antifoul on your rudder stock - as Jefa instructs (see the instruction sheet on their website). Just make sure it is a product that is ok for aluminum - and that it is applied correctly.
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Downeaster wrote:Posted By: peterr
Date Posted: 18 April 2021 at 10:45
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Just an update. I have contacted Jefa, and they can provide a sleeve 3mm, to be glued over the rudder post. This will thicken the post and therefor the bearing ends to be bigger. I have ordered both the sleeve and the bearing this will cost 500 euros. The rudder was quite easy to dismantle, so now I only worry about the source of the problem. Might have been the antifouling that came to close over the years . I use International VC Offshore EU. Best regards peterr |