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470e keel - survey results

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marabou View Drop Down
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    Posted: 02 February 2021 at 16:42
Hi everyone,

I'm well into the purchase of a 2008 470e and just received the survey results. Apart from normal wear and tear there are two issues with the keel (2.60 version).  I'd be grateful if someone here with the knowledge could send their thoughts.

1) There is a 5cm vertical crack near the centre of the keel. Is this due to the keel construction (hollow iron windows) or is it something more serious (keel bolt)?

2) I know that the bilge area where the keel bolts live should be nice and clean, with a yellow epoxy beading around it. Apparently the previous owner has sprayed the area silver which covers the beading material. Is this suspicious in your opinion?

Just to inform you that the boat was inspected out of the water and there was no opportunity to check for leaks.

Thank you for taking the time to review my post - looking forward to being a Hanse owner!










































Edited by marabou - 04 February 2021 at 13:56
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colinc View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote colinc Quote  Post ReplyReply Direct Link To This Post Posted: 03 February 2021 at 07:34
Bit hard to comment on.  Clearly the keel attachment is pretty important to a buy-no buy decision.   You really need to ask the surveyor.   And ask the owner why they sprayed silver.  Maybe further investigation.   It may not be anything problematic but best not ignored.

Guessing that the paint is to cover up rusty bolts.   In which case, as you say, is there a leak?  The Hanses I have had have all been fully dry around the keel bolts.   Any water collects in other parts of the bilges.

Checking a keel for damage from collision is a pretty important thing when considering buying a boat.

So ask more questions.
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iemand View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote iemand Quote  Post ReplyReply Direct Link To This Post Posted: 03 February 2021 at 07:44
It could have been the case that the water tank was leaking and the steel frame was discoloured because of that. Maybe they only wanted to make that nicer. The Keel bolts wouldn't rust.

Maybe somebody has a drawing of the Keel windows. Makes sense that these are the cracks. The keel bolts would go to the bottom and even with an accident such a crack wouldn't really make sense.

BR Thomas
Hanse 312 MJ 2004 - Hanse 370e MJ 2007
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Post Options Post Options   Thanks (0) Thanks(0)   Quote colinc Quote  Post ReplyReply Direct Link To This Post Posted: 03 February 2021 at 08:09
Keel bolts are Stainless Steel.  Which does rust although not structurally.   So although bolts probably ok that is an indication of water.   And a good question as to where that water is from.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Wild Quote  Post ReplyReply Direct Link To This Post Posted: 03 February 2021 at 09:41
this is the 470 keel.
it seems to me the crack is from one of the windows.
Wild and Wet
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Wild Quote  Post ReplyReply Direct Link To This Post Posted: 03 February 2021 at 10:09
about the bolts.
From new , some people (I do) do a amount of paint on the mutter and washer to check for a crack in the paint after a grounding so you can check the keel have moved yes or no.
In this case the painting is done after water is coming in, so far I can see on the pictures, the questions are: salt or fresh water and where did it come from ???
any good surveyor can find this out. IMO
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marabou View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote marabou Quote  Post ReplyReply Direct Link To This Post Posted: 03 February 2021 at 10:48
Thank you very much everyone, very much obliged. A little update:

I have been in contact with the owner and asked for their survey (when they bought it, last summer).

Their reply was that they don't have an official survey - they inspected the boat themselves, and that this paint and crack issues should not trouble us. They haven't painted the keel plate and it didn't trouble them. Overall they have been very polite with me and no 'red flags' appeared so far during the sale. Also to state, that other than this, the boat is in near perfect condition.

However, based on your replies here on the forum plus the opinion of an experienced broker / surveyor in Athens who looked at the photos, I am having reservations proceeding with the purchase, fearing an expensive repair bill in case salt water is entering the keel bolt plate area.

The options I am considering now are:
1) Locating the previous owner in Spain and ask them why the keel plate was painted silver
2) Arrange for a new survey with a local Hanse specialist
3) Go for a sea trial there myself (tricky due to covid)

Does anyone know of a Hanse specialist in Cap d'Agde France / South France area please?

Again, many thanks for your support.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote iemand Quote  Post ReplyReply Direct Link To This Post Posted: 03 February 2021 at 13:45
Eric Forner on Mallorca used to be a great specialist. You should ask the original Hanse dealer aobut the water tank on this boat. there where tanks leaking because of poor welding. if this boat had a major tank repair than the bilge would have seen water. 

I wouldn't be concerned about this problem however I would always sail this boat and check any movement on the keel anyhow.

The window crack on the keel must be repaired properly otherwise you have salt water in the keel which will not cause structural problem but you will see rust coming through.

BR Thomas
Hanse 312 MJ 2004 - Hanse 370e MJ 2007
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Post Options Post Options   Thanks (0) Thanks(0)   Quote colinc Quote  Post ReplyReply Direct Link To This Post Posted: 03 February 2021 at 19:07
Have you had a survey done?  If so what do they say?  If not, it is very advisable to do so - if not essential.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote marabou Quote  Post ReplyReply Direct Link To This Post Posted: 03 February 2021 at 19:37
Hi Colnic,

Yes, we had a survey carried out, in fact it was them who sent us the photos. Their findings were:

Re: keel bolts area painted gray
"No yellow or black epoxy seal but grey paint (see pics), but it looks like original or been in place for a long time, no cracks or leakage."

Re: keel crack
"There is a +/- 5cm crack in the keel, I would suggest grinding this crack to see what caused it to crack (see overall pic and detailed Keel crack pic)."

I assume the surveyor did not know that the stock hanse keel bolt plates are made of aluminium, hence no paint necessary in principle?

Also the survey was done outside the water so there was no real way to test for leakage...

Thanks again for your replies - we are going to carry out a sea trial to check for leakage. In the meantime, any thoughts are very welcome.


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