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narai mkiv beam bracket replacement
24 Replies

I recently purchased a narai MKIV from the seventies. I have found that the brackets holding the beams in place are old steel and rotted out and I need to pull up all the beams and replace the steel…Continue

Started this discussion. Last reply by Adam Shuttleworth Oct 16, 2016.

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Latest Activity

matt connolly replied to dan's discussion narai mkiv beam bracket replacement
"Here's the said photos of a couple of the brackets. They were sand blasted then painted in 2 pack,but there are a few rust. spots here and there"
May 16, 2016
dan replied to dan's discussion narai mkiv beam bracket replacement
"Progress is going well. Slow but well. I opted for doing the stainless steel brackets on the outside only but upped the thickness to 3/16" and uppedthe lag bolts to 1/4" changed the bolt pattern also to go into fresh wood. I am putting…"
May 11, 2016
matt connolly replied to dan's discussion narai mkiv beam bracket replacement
"Hey Adam,l still have them here though they may need sand blasting and re painting. l'll get some photos happening. And measurements,though they are for a tangaroa and l'm not sure if they would suit a narai. They were made from my plans…"
May 10, 2016
Adam Shuttleworth replied to dan's discussion narai mkiv beam bracket replacement
"Hey Dan, How's the progress of this going? I'm embarking on the same job in September and I'm unsure which way to go with it"
May 10, 2016
Adam Shuttleworth replied to dan's discussion narai mkiv beam bracket replacement
"Hi Matt. I'm in W.A. Any chance of some pics of these brackets with some measurements. I'm about to embark on the same job as Dan"
May 10, 2016
dan replied to dan's discussion narai mkiv beam bracket replacement
"This is great! Love the ibolt idea with lashings. Did u upgrade the bolt thickness? I'd really appreciate a couple photos if u got em of beams 2 and 3. I'm trying to find ways to keep my beams for now and this is creative and useful idea…"
Aug 11, 2015
Don Brazier replied to dan's discussion narai mkiv beam bracket replacement
Aug 11, 2015
Penn D replied to dan's discussion narai mkiv beam bracket replacement
"It would be cheaper to build them than post them. .. specially since they would probably need modification; )"
Aug 10, 2015
Brandon Gamble replied to dan's discussion narai mkiv beam bracket replacement
"You guys never heard of the mail huh?"
Aug 9, 2015
dan replied to dan's discussion narai mkiv beam bracket replacement
"It would probably be just as cheap to fly there as make new ones. Lol."
Aug 9, 2015
matt connolly replied to dan's discussion narai mkiv beam bracket replacement
"If your on the east coast of australia i may have a full set of new steel brackets that you may be able to use. They were for a tangaroa mk 4 but i dont need them."
Aug 9, 2015
Penn D replied to dan's discussion narai mkiv beam bracket replacement
"What about lashing the inside of the beam and putting some new brackets on the outside? If its just a temp repair (couple of years) the some hot dip gal steel should do it just fine. Good luck and fair winds :)"
Aug 9, 2015
Brandon Gamble replied to dan's discussion narai mkiv beam bracket replacement
"Interesting Ideas here... Not a solution to your problem but I'll come by on Monday to help with that."
Aug 8, 2015
dan commented on dan's photo
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"That's the one beam that needs attention. Could be worse. Git rot was round 1. Excavation and replacement piece is in my cards on this beam in particular."
Aug 5, 2015
Michael Cooke commented on dan's photo
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IMAG0207

"You might have to do some reconstructive surgery on your beam."
Aug 5, 2015
Michael Cooke left a comment for dan
"I am faced with the samething you are.i think I have come up with a solution. I am thinking of using silicon bronze bolts with a bronze attachment over the top of the beam.the bolts will be 3/4 inch instead of 5/8 and they will be rubber padded only…"
Aug 5, 2015

Profile Information

I am:
A home builder, I own a Wharram
What boat (s) are you building or do you own?
Narai mkIV
Country, City, and State?
islamorada florida
About me or us?
We are new to the wharram community, and are very curious about it all.
Looking to?
Find information on repairs/upgrades on my narai

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Comment Wall (4 comments)

At 11:52am on August 4, 2015, Dave Mundy said…

I have an older Tangaroa with beam brackets. post a pic of yours and I will compare it to mine. The hulls have a lot of flex so yo may be able to shim them up enough and replace them one at a time. Your are probably due to change the rubber mounts any ways, so might as well to that at the same time.  

At 12:19pm on August 4, 2015, dan said…
I posted 3 pics to the thread originally but mabe they didn't go through. I'll try again
At 8:01pm on August 5, 2015, Michael Cooke said…
I am faced with the samething you are.i think I have come up with a solution. I am thinking of using silicon bronze bolts with a bronze attachment over the top of the beam.the bolts will be 3/4 inch instead of 5/8 and they will be rubber padded only on the top.the side would be wooden shims and the bolts would be threaded top and bottom so as to be totally adjustable.the bolts going through the beam troth would rely on 5200 caulk sealant. If the fittings you have are installed like mine ,they are difficult to take apart. If you have a land line I could talk rather than ask my wife to scribe for me. this picture obviously is not me but our daughter who was raised on the boat.
At 3:10am on December 14, 2016, Big tane said…

G'day Dan.

I am Gerry on big tane. Please check out my profile as I have to do an refit on my tanenui 28.

The best advice is to contact James wharram and buy an set of study plans of your boat with lashings on the beams as what I have done so far. The next thing to think of is thus.

You may have to take out the old beam if its under the deck like on my boat then fill in the hole where the beam has gone through and glass over the patch. Then make cleats check on ytube videos to look at lashings and you will have some idear. If you are placing the beam on the deck or in an trough, the lashings will have to go on both sides of the hull. At this point it is worthwhile thinking are you widening the boat ? Do not widen too much as that will be an drop in height above the waterline. At this point is as much advice I can offer you.

Good luck and merry Xmas.

Gerry on big tane.

Toora.

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