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Gap Between Hull and Cockpit

 
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NSM



Joined: 06 Apr 2021
Posts: 5
City/Region: Roy
State or Province: WA
C-Dory Year: 1992
C-Dory Model: 16 Cruiser
Photos: NSM
PostPosted: Sat Apr 10, 2021 8:06 pm    Post subject: Gap Between Hull and Cockpit Reply with quote

I've a new to me 1992 CD-16 Cruiser. There is a 1/2" to 1" gap between the hull and the cockpit panels along the seats on both sides. All screws have pulled out. The seat bases are sitting flush on the floor and it seems that installing bigger screws along the panels will only eventually make a bigger hole as new screws pull out. Do I need to repair this, and if so how should I go about it?

Cheers,
Scott
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thataway



Joined: 02 Nov 2003
Posts: 20778
City/Region: Pensacola
State or Province: FL
C-Dory Year: 2007
C-Dory Model: 25 Cruiser
Vessel Name: thataway
Photos: Thataway
PostPosted: Sat Apr 10, 2021 11:49 pm    Post subject: Reply with quote

Any hole in the floor should be over size drilled, then a Dremel router type of bit, an aallan wrench checked in drill, or a router bit, to remove at least 1/8 inch under cut all around--more if there is wet/rotten core. Fill those holes with thickens epoxy. I first mix the epoxy, and use a swab to coat any exposed core, to prevent more water leakage or damage.

Them thicken the expos mixed with hardener, to a peanut butter consistently, wit cabosil and medium density fillers. After this cures, then drill the hole and put a pan headg screw into place.

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Bob Austin
Thataway
Thataway (Ex Seaweed) 2007 25 C Dory May 2018 to Oct. 2021
Thisaway 2006 22' CDory November 2011 to May 2018
Caracal 18 140 Suzuki 2007 to present
Thataway TomCat 255 150 Suzukis June 2006 thru August 2011
C Pelican; 1992, 22 Cruiser, 2002 thru 2006
Frequent Sea; 2003 C D 25, 2007 thru 2009
KA6PKB
Home port: Pensacola FL
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NSM



Joined: 06 Apr 2021
Posts: 5
City/Region: Roy
State or Province: WA
C-Dory Year: 1992
C-Dory Model: 16 Cruiser
Photos: NSM
PostPosted: Sun Apr 11, 2021 1:22 am    Post subject: Reply with quote

Thanks for the response. The rivets into the deck are fine. It’s the elbow high (when sitting) area that has opened.
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thataway



Joined: 02 Nov 2003
Posts: 20778
City/Region: Pensacola
State or Province: FL
C-Dory Year: 2007
C-Dory Model: 25 Cruiser
Vessel Name: thataway
Photos: Thataway
PostPosted: Sun Apr 11, 2021 12:35 pm    Post subject: Reply with quote

Ask the moderators for an album. (First 3 on the "Member list". If you can access the "back side" then bolts will be best. If not, then one can either fill with something like Marine Tex and tooth picks and then redline the pilot hole. (one of the few uses of Marine Tex for long term use.
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NSM



Joined: 06 Apr 2021
Posts: 5
City/Region: Roy
State or Province: WA
C-Dory Year: 1992
C-Dory Model: 16 Cruiser
Photos: NSM
PostPosted: Mon Apr 12, 2021 10:58 am    Post subject: Reply with quote

I posted an image in the album NSM. Thanks for the album tip...

[/img]
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starcrafttom



Joined: 07 Nov 2003
Posts: 7878
City/Region: marysville
State or Province: WA
C-Dory Year: 1984
C-Dory Model: 27 Cruiser
Vessel Name: to be decided later
Photos: Susan E
PostPosted: Mon Apr 12, 2021 12:48 pm    Post subject: Reply with quote

all you can do is after removing the panel and the screws fill the holes with glue and tooth picks. Let it dry and then cut off the tooth picks even with the top of the hole. Now just re screw the panel in place. Your just rebuilding the hole with new wood so the screws have something to bit into. I have done this many times on other projects. its about the only thing you can do with out going to bigger screws.
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http://tomsfishinggear.blogspot.com/
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thataway



Joined: 02 Nov 2003
Posts: 20778
City/Region: Pensacola
State or Province: FL
C-Dory Year: 2007
C-Dory Model: 25 Cruiser
Vessel Name: thataway
Photos: Thataway
PostPosted: Mon Apr 12, 2021 7:15 pm    Post subject: Reply with quote

I agree with Tom. Is the screw going into the side of the hull? If so the length of the screw is very critical....If this is a cored structure--then it is still important, but less critical.

Perhaps a photo from a little further out, so we can see the general issues involved? Why is this screw pulling loose. Should be some other type of bonding utilized? Is some structural member flexing which should not be?

Thanks for the photo!
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NSM



Joined: 06 Apr 2021
Posts: 5
City/Region: Roy
State or Province: WA
C-Dory Year: 1992
C-Dory Model: 16 Cruiser
Photos: NSM
PostPosted: Tue Apr 13, 2021 11:53 am    Post subject: Reply with quote

I posted a photo from a little further away in an "untitled" album. The photo is from the helm side. Same gap on the port side.

I takes a bit of force to close the gap. I'm thinking of just filling the space with some teak or equivalent and reinserting a larger screw with appropriate length to count for the gap.

Thanks for the help.
Scott
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starcrafttom



Joined: 07 Nov 2003
Posts: 7878
City/Region: marysville
State or Province: WA
C-Dory Year: 1984
C-Dory Model: 27 Cruiser
Vessel Name: to be decided later
Photos: Susan E
PostPosted: Tue Apr 13, 2021 12:03 pm    Post subject: Reply with quote

You could 5200 a strip of wood to the hull and then screw in to that. That would work well
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thataway



Joined: 02 Nov 2003
Posts: 20778
City/Region: Pensacola
State or Province: FL
C-Dory Year: 2007
C-Dory Model: 25 Cruiser
Vessel Name: thataway
Photos: Thataway
PostPosted: Tue Apr 13, 2021 12:37 pm    Post subject: Reply with quote

Tom gives good advice as always. Teak is a very oily wood. I would use any common hardwood. I would keep the same size screw, you don't want to risk driving or protruding the screw thru the side of the hull.

Epoxy will also work to "glue" the wood in place. 5200 takes a while to set up. if possible you want to rough up and clean the area where you want adhesive to hold. For example for a very narrow area, glue sandpaper on a tongue blade or popsicle stick (hobby stores have these)

I use a glue gun to hold material in place waiting for any longer drying adhesive in place. any excess hot glue can be scapped off if you wish.
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NSM



Joined: 06 Apr 2021
Posts: 5
City/Region: Roy
State or Province: WA
C-Dory Year: 1992
C-Dory Model: 16 Cruiser
Photos: NSM
PostPosted: Wed Apr 14, 2021 2:05 am    Post subject: Reply with quote

Thanks gents for the awesome recommendation. I’ll head down that path and post results when done.

Cheers
Scott
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