Cruisers Forum
 


Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on Cruisers Forums. Advertise Here
 
Thread Tools Search this Thread Rate Thread Display Modes
Old 26-05-2022, 20:30   #1
Registered User

Join Date: May 2022
Posts: 1
Soft Spot on deck over V-Berth

I just bought a 1970 Kittiwake 23 for only $700. My friend and I just sailed it 50 miles up the Chesapeake Bay to get it home, and it was one of the best experiences of my life. Can't wait to take it out again.

The only major problem with it is that a large portion of the deck on the bow flexes when you step on it. It doesn't feel mushy, but it flexes. It also bends when you push up on it laying on the V-berth. I've been told that the core is still good, and that I need to cut out the deck with an oscillating tool, lay down some epoxy, put the deck back, and set some sandbags on top so that it bonds well. Since it bends from underneath, however, I don't think this is true: it seems like the core is probably rotten. After looking online, it seems that there are so many ideas on how to fix this. I'm hoping someone can give me a concrete course of action. Any help is greatly appreciated!!
edemario is offline   Reply With Quote
Old 26-05-2022, 20:53   #2
Moderator
 
tkeithlu's Avatar

Cruisers Forum Supporter

Join Date: Feb 2012
Location: Carrabelle, Florida
Boat: Fiberglas shattering 44' steel trawler
Posts: 5,329
Re: Soft Spot on deck over V-Berth

WElcome to the forum.

QUOTE; " the core is probably rotten."

Yep. OK, here goes.

For a small area, drilling holes,draining, and squeezing in epoxy might work. You don't appear to be talking about a small area.

For a large area, define the edges and then cut the LOWER layer, in the cubby, from the under side. You may not be able to get the lower layer off in one piece. Then remove all the rotten soaking wet core. You do it from the V-berth so you don't mess up the deck.

Now, you need to make the cut out area as stiff as the rest of the deck. Applying layers of fiberglass from underneath could be very messy. Consider replacing it with plywood of the same stiffness or thickness. Glue in a patch, holding it in place with 2x4 struts up from the sole of the cubby. Consider whether bolting it through to the deck is needed. Cover the patch with whatever lines the cubby at present,or install a new ceiling.

Be sure in this process to find and plug the way the water got into the core in the first place.

Thee are other approaches that other forum members may be able to suggest. Think through what approach is best for you and your boat.

Congratulations on your boat and your new-found passion.
__________________
Never let anything mechanical know that you are in a hurry.
tkeithlu is offline   Reply With Quote
Old 26-05-2022, 21:25   #3
Registered User
 
Kelkara's Avatar

Join Date: Oct 2016
Location: Vancouver Island
Boat: Hullmaster 27
Posts: 854
Re: Soft Spot on deck over V-Berth

I did a full re-core on my foredeck a couple of years ago ...

https://www.cruisersforum.com/forums...d.php?t=224788

I couldn't access from below so had to cut from the top, so there is an obvious change in the non-skid where I made the repair.
Kelkara is offline   Reply With Quote
Old 26-05-2022, 23:57   #4
Registered User

Join Date: May 2016
Location: Denmark
Boat: Nordship 808
Posts: 127
Re: Soft Spot on deck over V-Berth

Are u sure there is a core - it's a smallish boat.
In my first boat (22 ') there was no core in the deck or elsewhere.
SaylorMade is offline   Reply With Quote
Old 27-05-2022, 11:56   #5
Registered User

Join Date: Apr 2016
Location: Schuylerville, NY
Boat: Wellcraft portofino 43’
Posts: 266
Re: Soft Spot on deck over V-Berth

Many yours ago I repaired a rotted transom core with a product called Git Rot. Before proceeding, cut a small hole to be sure that you have a rotted core. If not, this procedure is not the cure you need. If the core has rotted, this will work. Use a hole saw to cut several holes 2-3” diameter in the underside of the deck in the problem area. Be sure to use a short center drill to avoid drilling through the deck. Use a fan to circulate the air to dry the core which may take a month or more. When it has dried, drill small holes between those cut with the hole saw. to fit a syringe tip. You will need several large syringes to inject the Git Rot into the core material. These are available at many body shop supply stores. Keep injecting until it oozes out of the holes. When it has completely saturated the dried rotted material, wait for it to set then install the pieces removed with the hole saw then glass over them. If the rotted area is not completely saturated, you will have weak spots. You’re done.
David Mathis is offline   Reply With Quote
Old 27-05-2022, 12:04   #6
Marine Service Provider
 
boatpoker's Avatar

Join Date: Nov 2008
Location: Port Credit, Ontario or Bahamas
Boat: Benford 38 Fantail Cruiser
Posts: 5,666
Re: Soft Spot on deck over V-Berth

The only one I ever saw opwned up had a plywood core.
Long time ago and I'm guessing ... maybe 3/8" thick.

Injecting epoxy into delaminated, degraded plywood will not work.
__________________
Your doubt does not negate my experience.
boatpoker is offline   Reply With Quote
Old 27-05-2022, 12:26   #7
Senior Cruiser

Cruisers Forum Supporter

Join Date: Dec 2019
Location: Miami Beach
Boat: Prout Snowgoose 37
Posts: 112
Re: Soft Spot on deck over V-Berth

Welcome to the forum Edemario. It sounds like you need some wisdom from Andy at Boat Works Today. https://www.boatworkstoday.com/
No affiliation but a fan of his videos. Please consider supporting his efforts, he is very knowledgeable and a good teacher.

Capt Clark
Capt Clark is offline   Reply With Quote
Old 28-05-2022, 21:19   #8
Registered User

Join Date: Dec 2018
Posts: 39
Re: Soft Spot on deck over V-Berth

I like watching Andy, too. If the deck is your main issue, you got a great deal. Now you will learn some more about your boat. All good advice here.
bullislandken is offline   Reply With Quote
Old 29-05-2022, 02:12   #9
Registered User

Join Date: Sep 2015
Location: East Coast Florida
Boat: Chris Craft 38 Commander 1965
Posts: 473
Re: Soft Spot on deck over V-Berth

Depending on how long you plan to keep the boat will affect method chosen.
Drying out a wet or rotten core will take months and only work if you can prevent further water entry while the drying process is carried out.
If you can see it flex when pushing from below that shows a lot more weakness the flex when standing on it.
Consider cutting out fro either side and replacing core with Cousa board. Bonds extremely well to polyester,vinyl ester or epoxy. And will never rot. Lighter weight than plywood. Especially wet.
Also a couple of 1 or 2 inch strips bonded to the underside would strengthen greatly.
Bed it in to the deck on one side and cover with fiberglass on the underside. Never have to deal with it again.
Squanderbucks is offline   Reply With Quote
Old 29-05-2022, 07:00   #10
Registered User

Join Date: Oct 2019
Posts: 664
Re: Soft Spot on deck over V-Berth

For the money you paid for the boat, why worry about spending weeks or months working on the deck. Go sailing instead.
Stewie12 is offline   Reply With Quote
Reply

Tags
deck

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Soft Spot In Hatch boeing1 Construction, Maintenance & Refit 8 05-10-2016 12:10
Interesting quick fix on soft spot on deck downwinder Monohull Sailboats 23 23-04-2015 15:32
Deck Core Soft Spot? -a Low Budget Amateur Repair Hudson Force Construction, Maintenance & Refit 82 25-06-2014 18:14
Spot, Spot II, Spot Connect blewett_john Health, Safety & Related Gear 57 08-05-2012 15:13
Repairing soft spot in deck daveyjustin Construction, Maintenance & Refit 6 25-01-2009 14:20

Advertise Here


All times are GMT -7. The time now is 07:50.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2022, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2022, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.