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12-10-2016, 06:29
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#1
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Registered User
Join Date: Nov 2011
Location: Lake Linden MI
Boat: Beneteau Evasion 28
Posts: 24
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rudder delamination
I just hauled out my Beneteau 28 for the season and found that my wood core rudder lost its composite lamination on one side. Water leakage was most likely the problem. The wood core will have the winter months to dry. I assume I'll have to pull the rudder. I am looking for suggestions on relaminating,ie. what product(s) are best to use to restore the lamination, and can you steer me to some procedural instructions. Thanks.
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12-10-2016, 07:30
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#2
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Registered User
Join Date: Aug 2009
Location: between the devil and the deep blue sea
Boat: a sailing boat
Posts: 20,437
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Re: rudder delamination
Google more. I remember at at least one website discuses this with picture.
Also look up Jefa website as they show how they build, what the structures are, etc.
Cheers,
b.
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12-10-2016, 07:36
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#3
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Registered User
Join Date: Oct 2007
Location: Lakewood Ranch, FLORIDA
Boat: Alden 50, Sarasota, Florida
Posts: 3,470
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Re: rudder delamination
Better do a thorough inspection of the webbing and weld joints holding the webbing to the rudder post. If rusted or weakened, no amount of re-coring will fix that.
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12-10-2016, 08:26
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#4
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Registered User
Join Date: Mar 2006
Location: Winnipeg
Boat: None at this time
Posts: 8,462
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Re: rudder delamination
What kind of wood is the core made of. If plywood it is probably saturated. Make sure there is no wood rot before you reskin. Pictures may help people help you.
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12-10-2016, 08:39
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#5
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Registered User
Join Date: Aug 2006
Location: Skagit City, WA
Posts: 25,515
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Re: rudder delamination
Open your rudder up so it can really dry, it wont dry closed up. You can inspect that way too.
__________________
"I spent most of my money on Booze, Broads and Boats. The rest I wasted" - Elmore Leonard
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12-10-2016, 08:54
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#6
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Moderator Emeritus
Join Date: Oct 2013
Location: Jacksonville/ out cruising
Boat: Island Packet 38
Posts: 31,351
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Re: rudder delamination
What does a new rudder cost?
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12-10-2016, 11:58
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#7
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Registered User
Join Date: Nov 2011
Location: Lake Linden MI
Boat: Beneteau Evasion 28
Posts: 24
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Re: rudder delamination
I hope this attachment shows the photo I took of the rudder. Now examining it, I see this has happened before. The plywood has screws in it. The boat was built in 1977. I have owned it 5 yrs. Each year before launch, I have inspected the rudder, and I have noticed a crack in the composite covering which I have repaired with a layer of fiberglass. Evidently,that was not sufficient to do leak proofing. Maybe my best shot is to remove all the covering and reconstruct. Any advice on the most reliable covering? Gelcoat on top of fiberglass?
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12-10-2016, 12:31
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#8
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Registered User
Join Date: Aug 2006
Location: Skagit City, WA
Posts: 25,515
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Re: rudder delamination
Glass epoxy. Forget the gel coat. Maybe a good barrier coat. That looks pretty far gone. Sometimes you can cut at forward or aft edge and peel off the outer glass layer and use it to establish shape for a new one adding more layers of glass over the existing metal framework.. Not sure with that one though. Do you know how the gudgeon attaches to get the rudder off?
__________________
"I spent most of my money on Booze, Broads and Boats. The rest I wasted" - Elmore Leonard
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12-10-2016, 14:19
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#9
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Registered User
Join Date: Nov 2011
Location: Lake Linden MI
Boat: Beneteau Evasion 28
Posts: 24
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Re: rudder delamination
Just above the rudder is a sleeve over the shaft with two bolts to secure the rudder. I assume that sleeve functions like a plumber's nipple, and that should make removal easy. Thanks.
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12-10-2016, 16:46
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#10
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Registered User
Join Date: Jan 2011
Location: Now based on Florida's West coast
Boat: Pearson 34-II
Posts: 2,578
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Re: rudder delamination
Quote:
Originally Posted by S/V Illusion
Better do a thorough inspection of the webbing and weld joints holding the webbing to the rudder post. If rusted or weakened, no amount of re-coring will fix that.
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This is good advice. Before any repair is considered, you must determine the structural integrity of the rudder frame. If this is fine, the repair is straightforward and simple. Keep us posted on your progress. Good luck and safe sailing.
__________________
"And those who were seen dancing were thought to be insane by those who could not hear the music."
Friedrich Nietzsche, Thus Spake Zarathrustra
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12-10-2016, 17:55
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#11
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Registered User
Join Date: Jun 2014
Location: Up the mast, looking for clean wind.
Boat: Currently Shopping, & Heavily in LUST!
Posts: 5,629
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Re: rudder delamination
Realistically you need to start over. Meaning that assuming the framework is solid, which isn't a given. Then you're better served by building a rudder which has a rot proof core, preferably one that's impervious to water. Either a proper mix of epoxy & fillers (best), or high density foam. Along with a flexible seal at post, & the blade skinned with glass & epoxy. Followed by fairing, sealing, & painting.
__________________
The Uncommon Thing, The Hard Thing, The Important Thing (in Life): Making Promises to Yourself, And Keeping Them.
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12-10-2016, 18:15
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#12
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Registered User
Join Date: Nov 2011
Location: Lake Linden MI
Boat: Beneteau Evasion 28
Posts: 24
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Re: rudder delamination
Thanks everyone for useful advice.
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12-10-2016, 20:18
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#13
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Registered User
Join Date: Sep 2014
Posts: 3,052
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Re: rudder delamination
Here is a good step by step "how to" in 6 parts.
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12-10-2016, 20:46
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#14
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Now on the Dark Side: Stink Potter.
Join Date: Aug 2003
Location: Palm Coast, Florida
Boat: Sea Hunt 234 Ultra
Posts: 3,971
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Re: rudder delamination
If the rudder is still hanging on the boat and on the hard.
Drill a bunch of holes from the bottom up, as many as you can with a long drill bit.
Then run hook a small air compressor to one of the holes and let it sit and run for hours and days. It will slowly dry out the rudder. When you think it is dry, let sit a few more days, perhaps with heat lamps pointing at the bottom. Then get a bunch of dowels from Home Depot, dip in epoxy and jam up in the holes you drilled.
A day or two later, chisel off the dowels sticking out, sand, epoxy again and paint.
Total cost about $25 if you already have the compressor. (Black and Decker electric type for filling tires on your car)
Did the above 15 years ago and still good.
No sh!t.
__________________
Life is sexually transmitted
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13-10-2016, 05:49
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#15
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Registered User
Join Date: Nov 2011
Location: Lake Linden MI
Boat: Beneteau Evasion 28
Posts: 24
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Re: rudder delamination
CSY-- Your plan is one is good engineering and I'll plan to follow it. BTW, this area is the shore of Lake Superior, and I'm on the hard for 7 months. The rudder will be off and in my basement drying out. Thanks.
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