Repair Plan Advice Needed

This is the place to post your ideas, thoughts, questions and comments as relates to general boatbuilding and reconstruction techniques and procedures (i.e. recoring, epoxy, fiberglass, wood, etc.)
Post Reply
hriehl1
Topside Painter
Posts: 126
Joined: Fri Aug 28, 2009 6:53 pm
Boat Name: s/v Mooney Hahn
Boat Type: '68 DS I; '68 Hinterhoeller 28
Location: So. NH / Merrimac Valley

Repair Plan Advice Needed

Post by hriehl1 »

Hinterhoeller HR-28 Refurb

Photo shows a split in a cross-member over the V-berth & under the foredeck.

My plan is:
1. Gorilla Glue (waterproof) in the wood split,
2. 3M 5200 over cross-member / underdeck separation,
3. jack up cross-member to join items up and hold while it sets (a few days).
4. With jack still in place, add SS plates on each side thru-bolted. The holes in wooden cross-member will have nylon sleeves / spacers inserted to spread the load of the bolts better than #10 bolts alone thru the wood would.

Thoughts?
Attachments
thwart_repair2.jpg
Skipper Dan
Master Varnisher
Posts: 102
Joined: Wed Jun 30, 2010 2:58 pm
Boat Name: Jade
Boat Type: Pearson Triton

Re: Repair Plan Advice Needed

Post by Skipper Dan »

It would be nice to know what broke it in the first place.

I would do one of two things if it was my repair. Less work; sand everything down in an area about the same size as you plate. epoxy everything back together, jack back in place. use fiberglass or my choice carbon fiber (depends on why it happened) and glass matt it to the cabin top around the beam. More work; make two more beams out of oak and sandwich them on either side fiber-glassing them into one beam. If this is something that happened because someone dropped a big anchor there and it is not going to happen again type of thing. Or if it is a weak point makes a lot of difference.

Dan
hriehl1
Topside Painter
Posts: 126
Joined: Fri Aug 28, 2009 6:53 pm
Boat Name: s/v Mooney Hahn
Boat Type: '68 DS I; '68 Hinterhoeller 28
Location: So. NH / Merrimac Valley

Re: Repair Plan Advice Needed

Post by hriehl1 »

I do not know what caused it, but there is no sign of damage on the topsides.
User avatar
Tim
Shipwright Extraordinaire
Posts: 5708
Joined: Tue Apr 01, 2003 6:39 pm
Boat Name: Glissando
Boat Type: Pearson Triton
Location: Whitefield, ME
Contact:

Re: Repair Plan Advice Needed

Post by Tim »

I think I'd remove the old member entirely and glass in a new one. By the time you mess around with attempts to repair what you have, you'd be better off just starting fresh.
---------------------------------------------------
Forum Founder--No Longer Participating
Quetzalsailor
Master of the Arcane
Posts: 1100
Joined: Fri Aug 26, 2005 9:53 am
Boat Name: Quetzal
Boat Type: LeComte North East 38
Location: Philadelphia, PA

Re: Repair Plan Advice Needed

Post by Quetzalsailor »

Amen w/Tim. Note that second break at the end of the flat overhead reinforcement; it's off to port of your sketched-on sister. I wonder if there's a corresponding one off to starboard? Is that an encapsulated piece of rotten wood?

If otherwise sound, you might also consider scarphing in a long dutchman that removes both breaks if the end conditions of the beam are too much trouble to deal with.
One Way David
Skilled Systems Installer
Posts: 183
Joined: Sat Aug 02, 2008 8:46 pm
Boat Type: Pearson Ensign
Location: Kansas

Re: Repair Plan Advice Needed

Post by One Way David »

My issue with your proposed fix is that that crack has been there longer than you've been able to see it. Glue or epoxy wants a clean fresh substrate to adhere to. You can't do that in situ. Plating it might be an emergency patch to say, get you home from a cruise. But you'll end up doing a correct repair anyway.

Dave.
Never finish all your projects or you'll be bored.
Post Reply