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Mast step corrosion
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Wilkie View Drop Down
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Joined: 12 February 2008
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Points: 22 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Wilkie Quote  Post ReplyReply Direct Link To This Post Topic: Mast step corrosion
    Posted: 10 December 2014 at 07:06
Hello all,
Our 6 year old Hanse 470e has a totally corroded mast step.
Have you experienced this?
On replacing it (required lifting the mast) the corrosion started on the new one within hours. So now we're looking for the cause.
Any ideas anyone?
Thanks
Mike
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Peter-Blake View Drop Down
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Points: 2471 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Peter-Blake Quote  Post ReplyReply Direct Link To This Post Posted: 10 December 2014 at 11:19
Is there any electric connection to it?
If it starts within hours than there must be something like a elektrical connection fault!
You maststep seems to work like a battery.....

Fotos plz.
Blake 370
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iemand View Drop Down
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Points: 1099 		Post Options Post Options   Thanks (0) Thanks(0)   Quote iemand Quote  Post ReplyReply Direct Link To This Post Posted: 10 December 2014 at 15:01
Be careful with your saildrive leg !!!!!!!!!!!!!!!!
Hanse 312 MJ 2004 - Hanse 370e MJ 2007
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panos View Drop Down
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Points: 1939 		Post Options Post Options   Thanks (0) Thanks(0)   Quote panos Quote  Post ReplyReply Direct Link To This Post Posted: 10 December 2014 at 17:28
Check if any cable that passes inside the mast is electrically connected to it. You need to remove the battery poles and the shore power cable and check with a good ohmmeter. You have to check both ways since the ohmmeter has a polarity.
Panos

Hanse 630e - selling her -
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jeancharleb View Drop Down
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Joined: 12 December 2008
Location: Marseille, Fr
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Points: 316 		Post Options Post Options   Thanks (0) Thanks(0)   Quote jeancharleb Quote  Post ReplyReply Direct Link To This Post Posted: 15 December 2014 at 03:39
wonder if it is a Selden?
Jean Charlebois
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iemand View Drop Down
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Points: 1099 		Post Options Post Options   Thanks (0) Thanks(0)   Quote iemand Quote  Post ReplyReply Direct Link To This Post Posted: 15 December 2014 at 16:32
6 years ago there was no Selden on Hanse 470, only late 2009??? and 2010
Hanse 312 MJ 2004 - Hanse 370e MJ 2007
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Kytho View Drop Down
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Points: 81 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Kytho Quote  Post ReplyReply Direct Link To This Post Posted: 01 May 2016 at 13:39
This is a serious issue. My mast step (Hanse built early 2008 with a Sparcraft mast) has cracked at multiple sites, presumably because it got weakened by the massive corrosion. I now have to change it.
Do your Hanse yachts have an insulation between mast (aluminum) and step (steel)?

Kytho
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iemand View Drop Down
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Joined: 13 February 2004
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Points: 1099 		Post Options Post Options   Thanks (0) Thanks(0)   Quote iemand Quote  Post ReplyReply Direct Link To This Post Posted: 01 May 2016 at 19:10
the maststep is aluminum I'm convinced!
Hanse 312 MJ 2004 - Hanse 370e MJ 2007
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gertha View Drop Down
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Joined: 03 June 2004
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Points: 1036 		Post Options Post Options   Thanks (0) Thanks(0)   Quote gertha Quote  Post ReplyReply Direct Link To This Post Posted: 01 May 2016 at 20:48
When steel corrodes it turns red, as rust.
What you have as a picture is not steel, the picture shows something that looks like a piece of knackered aluminium.
My guess is your mast is bashing down on a piece of metal that has failed. In the world of sailing where we have salt water everywhere , which most people know is corrosive , and a boat 8 years old these things happen.

Simon
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Rock View Drop Down
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Joined: 19 September 2014
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Points: 404 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Rock Quote  Post ReplyReply Direct Link To This Post Posted: 01 May 2016 at 21:19
What type of Hanse Kytho?
Is your mast keel stepped, i can't place your picture.

What you show is indeed Al, you can see the white oxide.

Edited by Rock - 01 May 2016 at 21:27
Hanse 400e "M-square2" #0241
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