Mainsheet cleat support post

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J-109 Emoticon
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Mainsheet cleat support post

Post by J-109 Emoticon » Tue May 23, 2017 12:56 pm

Anyone have any experience repairing the support post which the block/cleat assembly are mounted forward of the traveler? Mine pulled out at AYC Spring. Access to underneath that part of the cockpit appears to be very difficult.

Thanks

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j30_rhapsody
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Location: Newport, RI

Re: Mainsheet cleat support post

Post by j30_rhapsody » Tue May 23, 2017 2:58 pm

JR - since I'm on the boat now, I took a look underneath. I've got a single 7/16" hex nut that appears pretty accessible in between the steering idler wheels. Topside there are 4 hex head bolts that fasten the aluminum plate to the traveler track where a single screw threads into the top of the rod (it may actually float and not thread into the rod). I think that the rod is mostly under tension, as I can't see what would compress it based on where the main sheet swivel attaches.

Bengt J
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Re: Mainsheet cleat support post

Post by Bengt J » Wed May 24, 2017 8:46 am

The traveller cleat support is a SS tube with 5/16 or M8 threads at both ends.
On the way to NA last year the top bolt pulled out by completely stripping the threads and the track started to flex up to an 1". In Newport we tried to fix it but to get to the bottom bolt you have to remove all headliners and wood trim in the back of the aft cabin and that is not all -on Zig Zag the bolt is glassed over. Needless to say we could not use the middle 2 ft of the traveller that regatta.
Back home I ended up drilling a 1/8" hole true the tube and bolt about 1/2" below the plate for the cleat and installed a 1/8" cotter pin to secure it. The cotter pin was strong enough for the AYC spring regatta.

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j30_rhapsody
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Re: Mainsheet cleat support post

Post by j30_rhapsody » Wed May 24, 2017 4:39 pm

After reading Bengt's post, I will check my support again. When I took the traveler off a while back to replace the bearings in the mainsheet car, the tube fell off, and I assumed it was just for compression. Now I know otherwise.

Attached is a picture underneath that shows where the bolt passes through the deck to the post on Vento Solare. Right side of picture is forward. This is looking up between the steering idler wheels.
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under deck for traveler support.jpg
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J-109 Emoticon
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Re: Mainsheet cleat support post

Post by J-109 Emoticon » Fri May 26, 2017 9:47 am

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So in my case the bottom threads pulled out of the tube. I have the same access problem you have on ZZ. The entire area is boxed in. I'm thinking about sawing out access from the starboard side lazerette to get access to the lower bolt. Hard to see from the picture however that's plywood behind the steering pully.

jng7000
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Re: Mainsheet cleat support post

Post by jng7000 » Sun Jun 11, 2017 2:29 pm

We had the same problem recently on Junkyard Dog. There seems to be a threaded insert in each end of the SS tube that failed on our boat. There is a phillips head screw which you can only see once you pull the headliner down inside the two wood boards that form a "V". You can see the headliner you'll need to pull down in the picture Bill put up. We have the same nut he shows but at least on our boat that's not the one you need. Easiest way we found to confirm we had the right fastener was to pull a measurement from the handrail on the side of the stairs/companionway to the post outside, then pull that same measurement under the boat through the starboard storage area.

It requires some advanced yoga maneuvers to turn the screw but it can be done. A phillips bit on a ratchet wrench may be helpful. We also found having one person hold the screw and turning the SS tube from up top was easier. We put an eyebolt on each side and a turnbuckle in between which seems to be working well so far.
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j30_rhapsody
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Re: Mainsheet cleat support post

Post by j30_rhapsody » Sun Jun 11, 2017 6:55 pm

I like Jim's solution better as the long term fix. Much easier to repair or replace in the future. Added to my work list in the next off season.

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j30_rhapsody
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Fixed!: Mainsheet cleat support post

Post by j30_rhapsody » Thu Dec 14, 2017 7:54 pm

Thanks to the help from Sam Goldblatt of Marquise II I had a second set of hands to help fix the support post. I was going to do the same fix that Jim documented for Junkyard Dog but decided on a different approach for Vento Solare using 1/4-20 threaded stainless steel rod.

Access to the underside is in the port side aft cabin. Using the small portlight from inboard side of the cabin as a reference, the fastener goes through the deck 22 inches aft of the inside aft lip of the portlight, and 13 inches inboard of the interior surface of the portlight (this should be the centerline). There is diagonal woodwork at the aft inboard end above the bunk that needs to be removed.

Once the woodwork is removed, the underside has a phillips head screw and shoulder washer.
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The tabbing has been chiseled off from the screw so it is now visible and can be removed.
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This is a view from below the traveler. There are 4 T-Bolts that can be seen. These fasten the aluminum plate that holds the main sheet swivel, and also connects the tie rod to the deck.
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The next two photos are the top and bottom of the aluminum plate. I broke a bit of using an impact wrench trying to remove the phillips head screw that fastens to the tie bar. The underside shows a round nut on this screw. It was welded in the end of the tie bar. There is a similar nut at the opposite end of the bar. These are weak points where the weld fails, thus the tie bar no longer protects the traveler in tension when the main sheet is tight.
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Below is the final fix shown on the bench. The nuts originally welded on the end of the tie bar are inserted, and 1/4-20 stainless steel threaded rod is screwed through the rod. The nuts will provide the ability to tighten the top and bottom independently. The rod was cut at 13" and then once installed and the nuts on opposite ends tightened, the excess was cut off. **Edit** The acorn nut on the top was too tall and interfered with the swivel. Using a regular hex nut and lock washer did not interfere.
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By the time I finished installing the fixed rod, it was too dark for pictures, but it looks the same anyway!

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