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Old 19-01-2016, 10:12   #1
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What is this metal rod for?

Hello all, I'm perplexed on what the heck this thing is for. I've tried google searches and asking everyone I come across. I'm in the middle of a headliner rebuild and leak hunt on this 1979 Endeavour 37, A plan. It was leaking but I fixed that, now I'm just wondering if I should keep it or take it out and epoxy the hole closed. Someone put time, effort and money to install this but I can't seem to find a use for it.
Thank you
John
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Old 19-01-2016, 10:18   #2
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Re: What is this metal rod for?

Oh, and by the way the rod is on the aft part of the mast. I've been told it was for lightning protection but I just don't see that. The mast is grounded by wire attached to the base. And excuse the mess, looking at the pictures feels like being photographed in my boxers! Been refitting so long I'm used to it but still embarrassing to show others 😳
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Old 19-01-2016, 10:24   #3
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Re: What is this metal rod for?

Is there a matching eye at mast head?


Also check is it part of the boom vang system??
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Old 19-01-2016, 10:46   #4
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Re: What is this metal rod for?

I have seen the same rod on Pearsons. Wondered what it was for too.
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Old 19-01-2016, 10:49   #5
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Re: What is this metal rod for?

Its to keep the halyards from lifting the deck up.
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Old 19-01-2016, 10:49   #6
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Re: What is this metal rod for?

No matching eye at masthead, just that pole attached to keel then through the deck to eye. No boom vang either on this boat 😢


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Old 19-01-2016, 10:53   #7
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Re: What is this metal rod for?

No boom bang on this boat unfortunately. No eye on masthead either. Just the rod attached to keel then through the deck to eye fitting. It spun freely when we bought the boat, but it also leaked. I butyl taped around the fitting and tightened down so it doesn't spin or leak.




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Old 19-01-2016, 10:54   #8
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Re: What is this metal rod for?

Oops, double sent 😳😳


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Old 19-01-2016, 10:56   #9
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Re: What is this metal rod for?

Called a tie rod, prevents deck lifting/mast driving thru bottom of boat, due to standing rigging stresses, not from halyard loads. Mast in compression, force down thru keel, shrouds pulling up. Boat tries to get narrow and deck lifts at mast hole.
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Old 19-01-2016, 10:57   #10
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Re: What is this metal rod for?

As in to secure the halyards not in use? I usually attach them to stanchion bases to keep from slapping in the wind. Is there a good way to stop slapping if secured that close to mast?


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Old 19-01-2016, 10:58   #11
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Re: What is this metal rod for?

Ok, that makes sense. What is the eye for?


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Old 19-01-2016, 11:03   #12
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Re: What is this metal rod for?

Sanibel, thank you, that makes sense. It just doesn't seem to be stout enough if forces are that strong. It's attached good at the keel but just a washer and a nut connected to the ring at the deck where mast comes through.



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Old 19-01-2016, 11:35   #13
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Re: What is this metal rod for?

I fixed one on a Pearson which had broken, so it does see some loads.
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Old 19-01-2016, 11:35   #14
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Re: What is this metal rod for?

If you had a mast base organizer and halyards running aft this tie rod would stop the lifting of the deck
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Old 19-01-2016, 12:12   #15
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Re: What is this metal rod for?

The eye is an accessory, could have been a nut, but should have a better backing plate or sometimes tied into mast collar. Likely poorly engineered install job. Forces are present with or withour halyard loads which are minimal in comparison to standing rigging loads.

Tie rods are common on race boats that are lightly built and highly loaded. F'rinstance see Olson 30's
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