Shackle bending

[thinwater]

I suppose I would slip a piece of oak between the two faces and squeeze down on that to the correct and controlled width....

And even more importantly, to keep the faces parallel!

After 40 years, you're good. If you want to reduce the stress in the future, use nylon rope for the traveler line. It is a safe bet that the forces that did the damamge were not normal sailing loads, but the occasional rough jibe (high force and side load). Rubber end bumpers can also help.

The traveler line is one of the few places nylon works in running rigging. It will not stretch enough under normal loads to be noticeable, but will stretch a few inches in a hard jibe.

You did not state the size of the boat, but judging from the traveler, 30'?

Dynamic Traveler Line

 

[Blueboatman]

And even more importantly, to keep the faces parallel!

After 40 years, you're good. If you want to reduce the stress in the future, use nylon rope for the traveler line. It is a safe bet that the forces that did the damamge were not normal sailing loads, but the occasional rough jibe (high force and side load). Rubber end bumpers can also help.

The traveler line is one of the few places nylon works in running rigging. It will not stretch enough under normal loads to be noticeable, but will stretch a few inches in a hard jibe.

You did not state the size of the boat, but judging from the traveler, 30'?

Dynamic Traveler Line

100% , great upgrade
Avoid the boom bender bang!

 

[Stemar]

My new £19.99 Parkside mains angle grinder fitted with a 1mm cutting disc would soon make the slot wider.

The shackle wont need bending then.................... ?

Now you've done it.

But but but...

You've then altered the carefully engineered sizing of the whole thing with who knows what dire consequences! ? ? ?

We all know that everything on a cruising boat is carefully designed and precision engineered, and any change it will bring about horrible suffering and death unto the fifteenth generation!

Or, maybe it's more of "30 footer? Well, that one is listed for up to 26 ft, so we'd better go for the one that's listed for the 28 - 36 foot boats. I suspect the loads on a 30 foot cruiser will be way lower than on a 24 foot balls-out racer anyway.

I'd go with the lumps of wood and vice methods described above. Then go sailing and celebrate the repair with a nice glass of something in your preferred anchorage.

 

[Mudisox]

Why not replace the whole thing? You will need to remove the pulley assemblies to get at the shackle pin and then replace. - after 40 years, simple.

 

[WoodyP]

Why not replace the whole thing? You will need to remove the pulley assemblies to get at the shackle pin and then replace. - after 40 years, simple.

Looking at the photo there seems to be a bit of corrosion on the mounting. I suspect that this is an indication that the whole boat is about to fall apart.

 

[greeny]

Why not replace the whole thing? You will need to remove the pulley assemblies to get at the shackle pin and then replace. - after 40 years, simple.

Cost maybe, compared to the price of a shackle which he already has.

 

[Egbod]

I would just modify the shape of the shackle to fit into the gap. I would then make a second shackle that also fits, and carry it as a spare. I am confident that a modified shackle will be strong enough. I have generally found that if you carry a spare part with you then you never need it.

 

[Neeves]

How can you have thread regarding a shackle that costs peanuts running for 47 posts, 48 with this post.

Doesn't anyone have better things to do.

Jonathan

edit, If your only option is hitting your head on a wall - keep posting

 

[LadyInBed]

Looking at the photo there seems to be a bit of corrosion on the mounting.

I pointed that out in #11, apparently it's of no concern!

 

[LadyInBed]

Three pages on bending a shackle!
This could reach the proportions of an Anchor thread, thank God the shackle isn't attached to the anchor, it could go on for the rest of the season ?

 

[Neeves]

The majority of people here all say the same thing and I checked and David (Beckham) agrees.

Just do it

and go sailing life is too short to worry.

. .

But,

take care and stay safe

Jonathan

 

[Dipper]

Or, maybe it's more of "30 footer? Well, that one is listed for up to 26 ft, so we'd better go for the one that's listed for the 28 - 36 foot boats.

It's a Seawolf 26 the same vintage as mine c1979. Mine doesn't have the blocks and traveller lines - they've been removed but the rest of the fitting is the same. Instead there are adjustable pin stops which will put more load onto the shackle in the event of an uncontrolled gybe.

I'm interested in the final solution to this as my shackle might be approaching its end of life and perhaps a replacement now would be a good idea.

 

[thinwater]

How can you have thread regarding a shackle that costs peanuts running for 47 posts, 48 with this post.

Doesn't anyone have better things to do.

Jonathan

edit, If your only option is hitting your head on a wall - keep posting

Given the anchor threads we have started and participated in... maybe we shouldn't throw stones. ???

Yeah, pretty funny. I'd bet folding money the shackle was cold formed and the manufacturer would be laughing if he read this.

 

[Refueler]

My new £19.99 Parkside mains angle grinder fitted with a 1mm cutting disc would soon make the slot wider.

The shackle wont need bending then.................... ?

Exactly ..... I suggested opening up the slots ages ago ... solves all.

 

[anoccasionalyachtsman]

Exactly ..... I suggested opening up the slots ages ago ... solves all.

See the smiley? He was joking. Effecting your proposal will weaken the traveller. Definitely. Permanently.

 

[Refueler]

Given the anchor threads we have started and participated in... maybe we shouldn't throw stones. ???

Yeah, pretty funny. I'd bet folding money the shackle was cold formed and the manufacturer would be laughing if he read this.

Many years ago with the original PBO RtoR before hackers got in ... quite a few used to get together and start threads knowing they would develop ...
If you joined in 2013 ... you are many years after !! (My 'join date' shown next to my ID is not correct as that is when my account was reset after the 'awful Clive' post ...

The best topics were ..

Blue Ensigns
Anchor rodes chain or rope
Racing rules vs ColRegs

It became a competition to see which could generate the most posts ... when forum returned after Admin cleaned out the hacks and crap - such antics were frowned upon - as was the setting up of multi ID's.

 

[Refueler]

See the smiley? He was joking. Effecting your proposal will weaken the traveller. Definitely. Permanently.

Having had similar traveller on my Saaremaa race boat - I will call you out on that.

As to smiley ... depends how you read the post .. I don't have inside knowledge of Mr Rotrax thoughts - so can only assume his smiley is related to the line its in ... no need to bend the shackle.

Maybe Mr Rotrax can enlighten ?

 

[PabloPicasso]

Thanks for everyone's input. Seems a successful adjustment with the help of 2 wood blocks, a vice, and a nut of the right width to ensure I didn't over squeeze.
All done very carefully in small increments until it fitted just right. Surprising how much faffing about it was to squeeze just 2mm accurately.

 

[[185615]]

Sorry old chap wrong choice.

 

[Refueler]

It will likely outlast ownership .. be sold on still working ....

But still not my idea of how to fix.