Deck Re-coring
Printed From: CorrectCraftFan.com
Category: General Correct Craft Discussion
Forum Name: General Discussion
Forum Discription: Anything Correct Craft
URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=47913
Printed Date: March-06-2025 at 5:14pm
Topic: Deck Re-coring
Posted By: JamesRFrom
Subject: Deck Re-coring
Date Posted: August-13-2019 at 10:25am
I have a Ski Nautique with a bad deck core and I am looking for some insight on how to go about repairing. I have tried to use the search feature within in the forum but have had no luck.
My questions are:
Can the core be replaced from the inside without removing the deck? I have read this being done on some sail boat restoration sites but I have looking for some experience on a SN
What type of wood should I use for the core? To me it looks like some form of plywood?
If I do have to remove the deck can I leave the drive train on the boat? Meaning not having the deck on the hull with the weight of the engine cause any distortion of the hull?
I am really hoping that I can do this from inside as I really to do not want to pull the deck for the fear of hull distortion, but I am already way past the value of the boat with already doing the stringers and floor.
All opinions and ideas appreciated.
Thanks
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Replies:
Posted By: baitkiller
Date Posted: August-13-2019 at 10:56am
Which deck? You said you did the "floor" so whats left? The bow deck on my 1979 is balsa cored. I suppose the transom cap is as well but don't know for sure.
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Jesus was a bare-footer.............
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Posted By: JamesRFrom
Date Posted: August-13-2019 at 11:08am
The bow of the boat is the area in question. The is a lot of flex and when I removed the scoop inserts for the fresh air tubes the coring is dry rotted and the same issue is founf at the lifting ring area.
Thanks
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Posted By: JoeinNY
Date Posted: August-13-2019 at 11:50am
It can be done in place from the inside, ideally you would do it with a vacuum bag - process with is a little equipment heavy to get started with but better than removing the deck. Gonna be a bit messy. if it is plywood then the pocket that is left when you remove it from the bottom should be relatively flat, therefore I would fill it with some coosa board or other foam product if it were me.
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http://www.correctcraftfan.com/diaries/details.asp?ID=1477 - 1983 Ski Nautique 2001
1967 Mustang 302 "Decoy"
http://www.youtube.com/watch?v=cO5MkcBXBBs - Holeshot Video
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Posted By: JamesRFrom
Date Posted: August-13-2019 at 12:08pm
Not that wouldn't go the route of of vacuum bagging but can it be done without bagging?
But than I was just thinking I could seal/bag it from below and then pull the vacuum through the drop of the deck via the lifting ring hole?
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Posted By: JoeinNY
Date Posted: August-13-2019 at 12:39pm
I would tend to just cover the top side openings with plastic/sealant and vacuum from the bottom. I am sure you could pump it from the top with a little thought but with release film, and breather cloth on the outside of the repair... that's the bottom in this case the most straight forward method would just be from the bottom
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http://www.correctcraftfan.com/diaries/details.asp?ID=1477 - 1983 Ski Nautique 2001
1967 Mustang 302 "Decoy"
http://www.youtube.com/watch?v=cO5MkcBXBBs - Holeshot Video
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Posted By: MourningWood
Date Posted: August-13-2019 at 2:12pm
I did this job on my first Nautique...a '76.
I had the entire drivetrain out, removed windshield, etc, popped it off trailer, turned upside down and set up on some high stands. I could stand up inside it.
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1964 Dunphy X-55 "One 'N Dun"
'I measured twice, cut three times, and it's still too short!"
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Posted By: JamesRFrom
Date Posted: August-13-2019 at 2:20pm
Its funny you mention that !!!! I was just thinking about rolling the boat over and doing it from the inside. What was your method for rolling and how did you support the boat? did you remove the rudder and strut?
Thanks
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Posted By: MourningWood
Date Posted: August-13-2019 at 3:38pm
Was lucky (or stupid) enough to have use of a automotive shop in San Jose, Ca. Once off trailer, we sat it down on a bunch of old tires, then 4 or 5 of us rolled it over onto more tires. Once inverted, we slid 2 carpeted 4x6 lumber under the gunnels near dash and near transom, then jacked up to suit. An engine hoist was a great help. The strut and rudder were left in place IIRC. Sorry, pictures long gone.
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1964 Dunphy X-55 "One 'N Dun"
'I measured twice, cut three times, and it's still too short!"
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