410 Sundancer/Express Cruiser and 400 Sundancer/Express Cruiser **Official Thread**

[ttmott]

For anyone keeping score at home I’m still after a freshwater leak that accumulates water in my center cabin bilge. It starts under the aft cabin and fills enough to come into the emergency center bilge area

I am certain it’s a freshwater leak as we didn’t have water for a week and it was bone dry. Once I was on city water i had a couple gallons in that bilge within a few hours

I have literally put eyes on every hose and connection on the boat I can without completely disassembling cabinets.

it accumulates faster on city water than pump, and the pump doesn’t cycle that I’ve heard.

I am to the point of disconnecting one line at a time and seeing what leaks. Of course the first fitting I pulled off the main trunk/manifold cracked so I ordered 20 replacements.

any other words of wisdom? The water is cold, so I think it’s the cold side. I chased the entire anchor locker run and that’s dry, faucet connections are dry, toilets are dry, etc. I’m thinking it’s a kink or crack in a hose maybe somewhere under the cabin steps? The access hatches in the aft cabin are also dry

A pic under the refer and the water tank-

 

[Strecker25]

A pic under the refer and the water tank-
View attachment 103919 View attachment 103920

Thanks, our water tank is upfront but that’s helpful on the fridge. I found an access panel that I can stick my head into behind the fridge as well. It’s in the cabinet behind the cabinet door in the cockpit. If you take the two screws off the panel and pull it out there is another starboard plastic panel that comes out. It gives you access to the through hulls for the sumps

 

[dtfeld]

The 410s have the tank up under the vberth, and there are a couple lines that run down the side of the boat, and down the center bilge (from memory).

What does run behind the fridge are the AC discharge and shower sump lines.

In that area I'm thinking shower sump...

 

[dtfeld]

Or the sink drain...

 

[Strecker25]

Sumps are new, no water in them yet.

I can tell you now it’s either galley cold, forward head cold, or anchor wash down. I have all the others connected and no water is accumulating. I took the damn fridge out and wedged myself back there too, no signs of wetness, so wherever it’s leaking it doesn’t appear to be a joint or fitting. Has to be a crack somewhere or I’m seriously wondering if a rub rail joint nicked the wash down run

 

[Cocktail Time]

For anyone keeping score at home I’m still after a freshwater leak that accumulates water in my center cabin bilge. It starts under the aft cabin and fills enough to come into the emergency center bilge area

I am certain it’s a freshwater leak as we didn’t have water for a week and it was bone dry. Once I was on city water i had a couple gallons in that bilge within a few hours

I have literally put eyes on every hose and connection on the boat I can without completely disassembling cabinets.

it accumulates faster on city water than pump, and the pump doesn’t cycle that I’ve heard.

I am to the point of disconnecting one line at a time and seeing what leaks. Of course the first fitting I pulled off the main trunk/manifold cracked so I ordered 20 replacements.

any other words of wisdom? The water is cold, so I think it’s the cold side. I chased the entire anchor locker run and that’s dry, faucet connections are dry, toilets are dry, etc. I’m thinking it’s a kink or crack in a hose maybe somewhere under the cabin steps? The access hatches in the aft cabin are also dry

If you have a manifold, can you turn each "circuit" off and see what might be the culprit?

 

[Strecker25]

If you have a manifold, can you turn each "circuit" off and see what might be the culprit?

its a series of stackable T's so I'm basically doing that the manual way. I ordered about $400 worth of fittings and pipe so I'm armed to replace whatever needed. As I started to take each one apart they all broke and the seals are shot so they should probably be replaced anyway. I looked into getting a manifold or adding shutoffs to each circuit but holy $$.

I also ordered a new regulator, the one that was put on the boat last year is 65psi and I read that the OEM was 45PSI. I would think the joints should be able to hold 65 but that seems like a lot of pressure

 

[Giopapy]

Hello everyone, I am writing from Italy and I am in negotiations to buy the only 410 DA existing in Italy. It's a 2001 with 3126 CAT 385 Hp 1200 hours but they were completely redone in 2015, it has the bow thruster and the submersible swim platform. At the moment the owner wants to sell the boat in October, after the summer, that will be the moment in wich I'll get a surveyor to test everything.
I had a 310 for 10 years, I was in love with her (and still I am), I sold it last month. Now I really need something bigger and I want to stay in SR family, I use to spend a lot of days aboard.
Here are just a few pictures of the boat I found.
The first thing I will do will be a new canvas and sea deck in the cockpit, I don't know if to put it also in the swim platform since it is submersible.

I've read all the 183 pages of this very interesting thread and I feel like I know everyone of you.

 

[dtfeld]

That looks like a beautiful 410 and with the CAT 3126, its a great cruising boat. Those cabin floors are beautiful, and the generator has the sound sheild!! With a bow thruster and hydraulic swim platform , it has all the bells and whistles!!

Even a gang plank! We don't use those very often around where, but I think it would be very useful.

That's a winner!!

 

[TitanTn]

Looks very nice. I especially like that floor. Curious as to why the engines have been redone with only 1200 hours.

 

[Giopapy]

Looks very nice. I especially like that floor. Curious as to why the engines have been redone with only 1200 hours.

I don't know but they have the list of all the things done.
I hope everything is OK because I'm really in love

 

[Dani-Lu]

I can’t blame you for falling love, since thats my exact boat plus some very nice upgrades. But like many will say, don’t fall in love until after the boat and engine survey. Love makes you do funny things, like ignoring some survey red flags that can turn your love into a bad marriage. I too would want to know why the rebuild? Did they run that boat very, very hard and possibly not do proper maint, etc. What about the transmisson (approx $12,000 US to replace each one! With that said, I have never owned a boat more than 5 years. I own my 410 over 13 years and have no plan to sell it in the near future. It is an amazing boat, it has performed ridiculously well in the Atlantic ocean in all sorts of conditions. I have stayed on it with my wife for a month at a time and sleep better on my custom mattress on the boat than I do on our expensive sleep # bed at home.

I hope all things work out well with that beauty!

Jeff

 

[Dani-Lu]

P.S. My prior boat was a 2000 310da too

 

[Strecker25]

Hello everyone, I am writing from Italy and I am in negotiations to buy the only 410 DA existing in Italy. It's a 2001 with 3126 CAT 385 Hp 1200 hours but they were completely redone in 2015, it has the bow thruster and the submersible swim platform. At the moment the owner wants to sell the boat in October, after the summer, that will be the moment in wich I'll get a surveyor to test everything.
I had a 310 for 10 years, I was in love with her (and still I am), I sold it last month. Now I really need something bigger and I want to stay in SR family, I use to spend a lot of days aboard.
Here are just a few pictures of the boat I found.
The first thing I will do will be a new canvas and sea deck in the cockpit, I don't know if to put it also in the swim platform since it is submersible. View attachment 104142 View attachment 104143 View attachment 104144 View attachment 104145 View attachment 104146 View attachment 104147 View attachment 104148 View attachment 104149
View attachment 104151
I've read all the 183 pages of this very interesting thread and I feel like I know everyone of you.

looks like a great boat, those floors are very cool. I’m guessing those are real wood?

Only thing I’d ask them is why the port engine is drawing from the starboard tank and the starboard engine from the port?

 

[carterchapman]

Hello everyone, I am writing from Italy and I am in negotiations to buy the only 410 DA existing in Italy. It's a 2001 with 3126 CAT 385 Hp 1200 hours but they were completely redone in 2015, it has the bow thruster and the submersible swim platform. At the moment the owner wants to sell the boat in October, after the summer, that will be the moment in wich I'll get a surveyor to test everything.
I had a 310 for 10 years, I was in love with her (and still I am), I sold it last month. Now I really need something bigger and I want to stay in SR family, I use to spend a lot of days aboard.
Here are just a few pictures of the boat I found.
The first thing I will do will be a new canvas and sea deck in the cockpit, I don't know if to put it also in the swim platform since it is submersible. View attachment 104142 View attachment 104143 View attachment 104144 View attachment 104145 View attachment 104146 View attachment 104147 View attachment 104148 View attachment 104149
View attachment 104151
I've read all the 183 pages of this very interesting thread and I feel like I know everyone of you.

Beautiful boat! Welcome aboard Sir!

 

[Giopapy]

looks like a great boat, those floors are very cool. I’m guessing those are real wood?

Only thing I’d ask them is why the port engine is drawing from the starboard tank and the starboard engine from the port?

Yes it is teak

 

[Giopapy]

I can’t blame you for falling love, since thats my exact boat plus some very nice upgrades. But like many will say, don’t fall in love until after the boat and engine survey. Love makes you do funny things, like ignoring some survey red flags that can turn your love into a bad marriage. I too would want to know why the rebuild? Did they run that boat very, very hard and possibly not do proper maint, etc. What about the transmisson (approx $12,000 US to replace each one! With that said, I have never owned a boat more than 5 years. I own my 410 over 13 years and have no plan to sell it in the near future. It is an amazing boat, it has performed ridiculously well in the Atlantic ocean in all sorts of conditions. I have stayed on it with my wife for a month at a time and sleep better on my custom mattress on the boat than I do on our expensive sleep # bed at home.

I hope all things work out well with that beauty!

Jeff

You're absolutely right, I have to use my brain, not my heart.

 

[Strecker25]

Yes it is teak

wow, awesome upgrade!

 

[Giopapy]

looks like a great boat, those floors are very cool. I’m guessing those are real wood?

Only thing I’d ask them is why the port engine is drawing from the starboard tank and the starboard engine from the port?

Maybe the actual owner doesn't know the meaning of port and starboard

 

[Strecker25]

Maybe the actual owner doesn't know the meaning of port and starboard

Haha could be!