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Boom Beckett

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DaveR
Master Marine Consultant

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USA
2015 Posts

Initially Posted - 01/17/2007 : 13:20:18

Is that what the aft boom to mainsheet connection is called?
Mine is not right to say the least and am wondering if anyone has had to replace theirs. I haven't checked to see but I'm guessing the threads are stripped and so the previous owner came up with this ?fix?. Looked on Catalina direct but didn't see anything. Here's a pic of my configuration, Thanks for any ideas, Dave Robbins

Dave Robbins
PO to*Bamboo*
'89 SR/WK #5877
Daytona Bch., FL

http://bambooc25.weebly.com/

Edited by - on

dlucier
Master Marine Consultant

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Virgin Islands (United Kingdom)
7583 Posts

Response Posted - 01/17/2007 : 13:37:03

Dave,

I don't know if it has an official name, but I refer to the device between the mainsheet and boom end casting as a "tang".

Catalina Direct does sell the boom end casing for $28.25.

Edited by - dlucier on 01/17/2007 13:54:06

DaveR
Master Marine Consultant

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USA
2015 Posts

Response Posted - 01/17/2007 : 14:22:41

Thanks a lot Don, I'll Look again at Catalina direct and give you another shout if I still can't find it. Dave

Edited by - on

djn
Master Marine Consultant

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USA
1561 Posts

Response Posted - 01/17/2007 : 15:00:33

Here is mine. You can just make out the tab that attaches to the center hole on the casting. The tab swivels port and starboard depending on where the main is. Cheers.

Edited by - on

DaveR
Master Marine Consultant

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USA
2015 Posts

Response Posted - 01/17/2007 : 15:43:10

Thanks guys,
I found it on Cat/Direct and ordered it up! Dave

Edited by - on

Leon Sisson
Master Marine Consultant

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USA
1893 Posts

Response Posted - 01/17/2007 : 16:14:26

The bolt in the center of the end cap needs to be loose. There should be two nuts on the bolt jammed together, preferably with thread locking compound, inside the end cap.

When removing the end cap, the screws might be frozen. I recommend lots of penetrating oil, heat, and patience. If worse comes to worse, I've been able to get end caps and similar fittings out by very carefully grinding the head off the stuck fastener flush with the surface of the extrusion. At that point, you could try drilling out what's left at least enough to release the end cap, or using a Dremel to grind it further down into the hole in the wall of the extrusion, or 'flexing' the extrusion cross section with a large clamp to oval it enough to clear the ground down stub. Others have suggested driving the stub through the end cap (assuming it's a hollow casting), and then repairing the damaged threads. Sometimes even being willing to sacrifice the end cap doesn't get it out of your way.

-- Leon Sisson

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djn
Master Marine Consultant

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USA
1561 Posts

Response Posted - 01/17/2007 : 16:21:58

Hi Leon, my tab is locked down tight as a drum. I tried heat, oil, and an impact hammer screw driver and no lock. In a couple weeks, I will try grinding off the side screws. Cheers.

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ClamBeach
Master Marine Consultant

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3072 Posts

Response Posted - 01/17/2007 : 20:22:37

"I will try grinding off the side screws..."

That's what I did with mine. Enlarged the holes in the end cap and went up a size with the new screws. Used never-seize on the screws and on on the surfaces of the cap where it joins the boom.

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DaveR
Master Marine Consultant

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USA
2015 Posts

Response Posted - 01/18/2007 : 08:30:10

The screws and boom casing look real clean on Bamboo but I suppose they probably did on your boats as well. Hopefully mine will come apart easily but thanks for preparing me for the worst!

Edited by - on

sweetcraft
Admiral

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USA
816 Posts

Response Posted - 01/18/2007 : 22:39:18

The strap for the main sheet to attach to is a tang. Dennis your tang looks bent in the picture. My bolt did come loose and I did upgrade by installing a heavier tang and the bolt has now a locking nut and pin (I drilled the bolt). The bolt is installed loose with enough space to handle the different angles it has to work in during reaching and then close hauled. If the end cap or casing has an enlarged hole you could use one size larger bolt making sure the hole is large enough for the bolt to adjust for the angles. That wasn't a personal comment about Dennis.

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djn
Master Marine Consultant

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USA
1561 Posts

Response Posted - 01/19/2007 : 08:03:11

I didn't take it that way mate! My tang is severly bent and bends a little bit more every time I sail. That is on the list for this winter. Cheers.

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tinob
Master Marine Consultant

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USA
1883 Posts

Response Posted - 01/19/2007 : 08:20:24

Dave, you have a jury rigged fitting. The end cap employs a tang that is mounted in the cap's center hole and that swings freely and the mainsheet is attached to this. Some have misunderstood the tangs loose fitting and in some way botched the screw mounting the tang to the end cap. It seems your PO may have done so and then rigged as in your picture. My '83 has just enough clearance( aproximately 1/16 ") for the tang to swing to both sides of the boat. You may not need a new cap, just the screw but you have to remove the cap to secure the screw. Best of luck.

Val on the hard DAGNABIT, # 3936, Patchogue, N.Y.

Edited by - on

britinusa
Web Editor

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USA
5404 Posts

Response Posted - 01/19/2007 : 13:09:25

when I was in the Navy we had a definition of a good knot!

Does it's job.
Easy to tie.
Easy to untie.
Looks navylike.

Paul.

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dlucier
Master Marine Consultant

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Virgin Islands (United Kingdom)
7583 Posts

Response Posted - 01/19/2007 : 13:51:19

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by djn
 Here is mine. You can just make out the tab that attaches to the center hole on the casting. The tab swivels port and starboard depending on where the main is.<hr height="1" noshade id="quote"></blockquote id="quote">

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by djn
 Hi Leon, my tab is locked down tight as a drum.<hr height="1" noshade id="quote"></blockquote id="quote">

Dennis,

Did your tab lock up on you between your first and second posts?

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djn
Master Marine Consultant

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USA
1561 Posts

Response Posted - 01/19/2007 : 16:29:54

Hi Don, meant to say it is "suppose to swivle". Mine has been locked ever since I bought the boat. I even tried an impact hammer/driver on the big philips screw to no avail. Cheers.

Edited by - on

DaveR
Master Marine Consultant

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USA
2015 Posts

Response Posted - 01/26/2007 : 15:08:44

OK, got the new end cap and tang in the mail yesterday and will go install it tomorrow. I'll be bringing my dremel tool w/grinder bit, a medium sized vise grip, tap & dye set, drill and drill bits, patience cap and gag (in case I feel the urge to curse at the top of my lungs:) Dennis, my tang looks a little sturdier than yours, I think I'll go with it for now. If I see it being stressed I'll change it out with a heavier one. The bolt is a 9/16 w/lock nut(the kind with plastic on the inside for no-slip), but still will stop by the hardware store and pick up another stainless for it just to be redundant. Again, thanks for all the advise folks, you guys are geat. I hear it all the time but I'll say it again, this site is outstanding! How can you beat tech support like this! Cheers, have a good week-end! Dave

Edited by - DaveR on 01/26/2007 15:11:56

Champipple
Master Marine Consultant

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USA
6855 Posts

Response Posted - 01/27/2007 : 09:18:47

<blockquote id="quote">quote:<hr height="1" noshade id="quote"> (in case I feel the urge to curse at the top of my lungs:) <hr height="1" noshade id="quote"></blockquote id="quote">

Cursing is definitely part of the project.

when Harvey and I go to work on the boat, our wives ask us the complexity of the task so they have an Idea of when we will be home. You can ask either one of them, they both came up with this scale on their own - I am not making this up.

Complexity comes in a few ranges - beer project means we will be done in ten minutes and spend the day at the bar talking about working on the boat.

Oh S#!t project means we will spend 2 hours and then spend the rest of the day at the bar talking about working on the boat.

Then similar to the Beuafort scale we have the MF factor which counts the number of times we curse the MF word. These projects generally run 1/2 hour per MF over and above the timeframe of an OH S... project. A 10 MF project will usually include two days of work, no beer or a strong possiblity that we stop working to regain our composure before we break something seriously enough that someone gets hurt or the boat doesn't float anymore. When we stop working to regain our composure we go to the bar....

But it usually isn't a boat project unless you can find one swear word somewhere.

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DaveR
Master Marine Consultant

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USA
2015 Posts

Response Posted - 01/28/2007 : 18:02:20

I defied the odds! No cursing at all! With the help of some vice-grips the (over sized) retainer screws came out hard, but came out without breakage. The old end cap came off easily, and was usable but the new one looks a lot better. Found a stainless lock nut and washer inside:) Used it in conjunction with the nut that came with the new tang to ensure separation wouldn't happen again. The cap doesn't come pre-drilled. I almost messed up because I drilled all the holes at once. I should have drilled one of the four, threaded it and put a bolt in to keep it still cause the cap moves around enough while drilling that your holes might not line up in the end. They weren't perfect but close enough. So we "got'er done" in a couple hours With plenty of time to go get a couple beers ............ OK 4:) On to the next project! Dave

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