Forums > Sailing General

Bulkheads moving

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Created by junek > 9 months ago, 5 Feb 2018
junek
NSW, 32 posts
5 Feb 2018 9:57PM
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I inspected a possible purchase on the weekend and have a question.

The boat was an early 2000's production 34 footer. Overall pretty good condition. Mostly used for light club racing and cruising.

Only major issue I found was the obvious gap and sikaflx between the bulkheads and the bottom of the deck.

I asked the owner and he said, 'yeah the bulkheads and deck /hull move independently and it creaks a fair bit in a seaway'. I can only assume he was the one to do the sikaflex job and in some placed the gap between the sika and the deck had opened up a good 5mm between when the sika was done and now.

I left thinking the boat was a write off. But I did some online research and it seams this is pretty common for production boats and they don't actually tie the deck into the bulkeads at all.

In all reality, the boat will mostly be used in protected waters with me, so I don't image it will fall apart when I am sailing it. However I do have to think about when it coms time to sell it and the next buyer says WTF!?

Should I run away from this boat or keep it on the 'maybe list'

cisco
QLD, 12364 posts
5 Feb 2018 9:19PM
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I don't like the sound of it. Tell us what the stamp of the yacht is. Someone here may have one and be able to shed more light on it.

EC31
NSW, 490 posts
5 Feb 2018 10:25PM
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Probably the bulkhead is made from something other than marine ply, which has shrunk over time or been worn down by movement.

If the boat meets all your other criteria, pay some gold coins to a decent surveyor and get an informed decision.

Trek
NSW, 1195 posts
6 Feb 2018 7:12AM
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Sounds no good but not uncommon. As you mentioned, I wouldn't take it offshore like that.

If you like the boat and can get a good enough price look into fixing it. Get (pay!) a boat builder to come and look and quote.

www.sailmagazine.com/diy/sealing-the-hull-to-the-deck

junek
NSW, 32 posts
6 Feb 2018 8:51AM
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Thanks guys. Good to hear you echo my concerns.

Depending on negotiations I may get it surveyed and I'll let you know the outcome.

Chris 249
NSW, 3531 posts
6 Feb 2018 10:10AM
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I think Bennys used to have bulkheads secured with Sika; the well sailed 53f5 I sailed on had to have them redone after a hard Hobart.

Kankama
NSW, 792 posts
6 Feb 2018 6:28PM
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Is the mast keel stepped? If so then the extra compression on the keel may push the keel down in waves. Going up and down in big seas.

I don't like the idea of the gap. If it was mine I would get out the 4 inch angle grinder and grind off the bulkhead and deckhead about 3 inches wide down to glass and ply. Then cove a nice 20mm diameter cove with epoxy and silica and then three layers of 400gm double bias 150mm wide then 100mm wide. Then paint with epoxy and filler, sand, and coat with epoxy primer and then paint.

I think it would take me about 2 days to do a nice job on a 35footer. Plus materials.

cheers

Phil

MorningBird
NSW, 2703 posts
6 Feb 2018 7:17PM
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Run away. Why buy a boat you can't take offshore, you will want to at some time, when seaworthy boats are available.
Any yacht that has a floating deck seems suspect to me.

Toph
WA, 1875 posts
7 Feb 2018 12:31PM
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Get it checked by someone who knows what they are talking about before you make a decision. It may not be as bad as you think. I was talking to a shipwright about his Benny 473 and the shift in bulkhead (mine hadn't moved though). He didn't seem too concerned. Benny's are apparently known for it due to the fillet being applied over the varnished bulkhead as oppose to clean material.

As said above, if it ticks all the other boxes it may not need running away from. Just be informed and aware

sirgallivant
NSW, 1531 posts
7 Feb 2018 10:36PM
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Are you looking for a yacht or a challenge?

Listen to Morningbirds advise.

Y would you struggle with someone else's problem?

There are so many solid boats out there, l don't really understand you even thinking of it.

sirgallivant
NSW, 1531 posts
7 Feb 2018 10:36PM
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Are you looking for a yacht or a challenge?

Listen to Morningbirds advise.

Y would you struggle with someone else's problem?

There are so many solid boats out there, l don't really understand you even thinking of it.

Jolene
WA, 1622 posts
7 Feb 2018 8:53PM
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Its possible that the sikaflex is used so that the frames or bulkheads don't produce hard lines on the hull. Strength may be gained throughout the hull by other means.
I have seen alot of nicely constructed glass boats that use a foam bearer laid under frames to take up inconsistency between the hull and frame but more importantly to eliminate hard lines that look terrible and could compromise the integrity of the hull. I always look for the bearers when looking for a quality build.
You do see some poorly glassed in ply bulkheads where the glassing has come away from the ply usually caused from skimping on resin and not wetting the ply out thoroughly or coating first before glassing in,,,it can be hard to spot.



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"Bulkheads moving" started by junek