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Re: Shackles and Beckets

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knightwind
Navigator

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Canada
114 Posts

Initially Posted - 06/01/2008 : 09:12:05

Remember I mentioned my mainsheet hardware flew apart.
i.e. the shackle holding the "becket?" of the block to the traveller.
and you guys said it was a 3/16" pin...
The wife goes to the marina and buys a huge shackle...so I take it back with the pin from said faulty shackle and buy and couple small shackles with the same size pins...go back to the boat...the pins almost fit...sigh...scrutinizing the old pin I now notice its just a thou or so smaller than 3/16" !!! I found the exact same b&t's on the boom vang...all "beckets" with hole just a tad too small.
So anyways...with some creative swapping around of shackles I've got everything together again. I'll be screwed by those becket-holes if anything ever breaks though...

Peter Keddie
Turkey Point, ON
79 Catalina 25 Fixed Keel #1050

Edited by - on

JimB517
Past Commodore

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USA
3285 Posts

Response Posted - 06/01/2008 : 11:08:03

Get some rigging tape and tape around the pins. All the pins on the whole boat. I'm too cheap to use rigging tape so I use black electrical tape, but it is harder to get off.

Edited by - on

John Russell
Master Marine Consultant

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USA
3444 Posts

Response Posted - 06/01/2008 : 16:12:00

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by knightwind
 ...the pins almost fit...sigh...scrutinizing the old pin I now notice its just a thou or so smaller than 3/16" !!! <hr height="1" noshade id="quote"></blockquote id="quote">
Is it that metric thing you folks north of the 49th parellel are so fond of?

Edited by - on

redeye
Master Marine Consultant

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3477 Posts

Response Posted - 06/02/2008 : 11:58:01

I indicated in my post regarding the size that it might be a 3/16 but we did not have the specs for the original hardware.

It MIGHT be a 3/16 stamped shackle with a captive pin.

No one named the correct size.

That is the problem with this stuff and why the forum is so helpful. Someone might be able to tell you that they just approached the problem, and if they found the correct answer.

So WHAT SIZE was it that fits??

Edited by - on

redeye
Master Marine Consultant

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3477 Posts

Response Posted - 06/02/2008 : 12:03:24

BTW... I've got my original boom vang off my 84 and it has a becket with stamped shackle on it so I can take to to west marine and see what part they carry that might fit.

I'll let you know what I find.

regards.ray

Edited by - on

redeye
Master Marine Consultant

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3477 Posts

Response Posted - 06/02/2008 : 12:22:25

My error. Someone did claim it was a 3/16.

not me...

of course I was even farther off...

regards.ray

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redeye
Master Marine Consultant

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3477 Posts

Response Posted - 06/02/2008 : 20:55:32

My Seaway boom bang fiddle blocks from 1984 have 3/16 inch diameter pins on the stamped stainless steel shackles on each end.

Some of the high load galvanized steel shackles may not be "up to spec" as the galvanization may have added a bit to the size. These are the shackles most often used for chain connections to the anchor.

Might be Not all shackles are the same, in spite of the name.

I was trying to stress the idea of using the stamped shackle. I should have indicated the Stainless Steel Stamped shackle.

Those shackles can be frustrating. All this Sailing gear can be frustrating as it appears you have to be specific and sometimes you just don't know what to ask for.

Anyway... I'd recommend you order an APS catalogue (Annapolis Performance Sailing ) as it covers a lot of ground.

I guess we are back to the Stainless Steel Shackle with captive pin, possibly stamped, possibly wrapped in electrical tape.

I'd be interested to know who makes your fiddle blocks and the size you ended up with...

Edited by - on

knightwind
Navigator

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Canada
114 Posts

Response Posted - 06/02/2008 : 22:04:53

My blocks are all Seaways...likely 79 vintage.
Pin size? 5/32? 7/64?
Thought about drilling out the beckets to 3/16...but they're worn enough already.
The "becket" is the name for part that attaches the block to the shackle pin...right?

Edited by - on

redeye
Master Marine Consultant

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3477 Posts

Response Posted - 06/03/2008 : 06:16:31

Ok I did not get to west marine, so this comes from the APS catalogue:
2008 catalogue page 133

RWO Pressed Stainless Steel Shackles w/ captive pins:
Ref# 2 Part #R6250 pin dia = 5/32 Break load 1000 $4.28

OR

Ronstan STD. "D" Shackles (noncaptive pins):
Part# RF1806 pin diameter= 5/32 breaking load 1760 $3.84

OR

Ronstan Long "D" Shackle (noncaptive pin):
Part#RF621 Pin Diameter= 5/32 breaking load 1760 $3.68

As others had indicated I'd tape up the noncaptive pin.

Edited by - on

redeye
Master Marine Consultant

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3477 Posts

Response Posted - 06/03/2008 : 06:25:09

I'd love the see your setup for your topping lift if you can get a picture of it sometime.

I've always only used the pigtail to the backstay, which may be why I've always had such a closed leech (and weather helm)

Looks like you have a block and tackle to a line running to the topmast in the back.

I think you are correct on the becket.

Edited by - on

dlucier
Master Marine Consultant

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Virgin Islands (United Kingdom)
7583 Posts

Response Posted - 06/03/2008 : 07:41:34

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by redeye
 I've always only used the pigtail to the backstay, which may be why I've always had such a closed leech (and weather helm).<hr height="1" noshade id="quote"></blockquote id="quote">

You use the pigtail while sailing?

Edited by - on

Frank Hopper
Past Commodore

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Pitcairn Island
6776 Posts

Response Posted - 06/03/2008 : 08:59:43

A sailor should have lots of shackles, clevis pins, rings, cotter pins; hardware of all types. I cannot imagine trying to buy a pin, buy a kit with lots of different sizes and stuff. I think it is almost as important to have hardware for other boats as for our own. Helping others is a big part of the sailing experience. This is just the hardware from one drawer, it does not include the stuff under the settee.

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redeye
Master Marine Consultant

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3477 Posts

Response Posted - 06/03/2008 : 10:00:04

<< You use the pigtail while sailing? >> Don Asked.

No.. just to hold up the boom. But I've never rigged a topping lift.

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redeye
Master Marine Consultant

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3477 Posts

Response Posted - 06/03/2008 : 10:07:51

Hot Damn.. Now Frank is the one to ask about that tingiepoo....

Auctually I've always tried to keep additional hardware in stock. Part of the reason I jumped in the thread is that not only am I trying to keep an appropiate backup inventory, but I'm trying to learn what everything is ...

I keep my supplies in a backpack that I bring onboard and take home so I can review the inventory and restock as needed.

Now my latest part I'm trying to learn ( and relearn ) is the round captive device that goes in opening at the end of a clevis pin.

APS catalogue has called it: ( get this )

A Ring Ding.

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