What is this thing for on my J/111 ?

George Dewey

Super Anarchist
2,071
118
Charleston, SC
I'm trying to figure out what this screw thing is for on my 2011 US made J/111. It's on the top of the cabin house near and above the forward end of the lead car track. There is one on each side. I think it is leaking, and wondering if I should just get rid of it before it destroys my core.
 

IMG_3516.JPG

IMG_3517.JPG

 
Last edited by a moderator:

hrothgar

Super Anarchist
4,277
153
Ada, MI
No idea.  My boat doesn't have that.  You also have a strap down by the end of the jib track.  We don't have that either.

Hroth

 

BobJ

Super Anarchist
1,206
150
Does it go into one end of a belowdecks grab rail?  Maybe the cabintop grab rail stud does double duty at the other end?

 

George Dewey

Super Anarchist
2,071
118
Charleston, SC
No idea.  My boat doesn't have that.  You also have a strap down by the end of the jib track.  We don't have that either.
I'm guessing someone added the eye for a bungee cord or something.

Does it go into one end of a belowdecks grab rail?  Maybe the cabintop grab rail stud does double duty at the other end?
No I don't think it does, its further forward than the handrail inside. 

Thanks guys, I'm going to get rid of these and fill the holes with epoxy or something. Seems to me they do nothing but provide a potential leak.

 

MiddayGun

Super Anarchist
1,094
404
Yorkshire
I'm guessing someone added the eye for a bungee cord or something.

No I don't think it does, its further forward than the handrail inside. 

Thanks guys, I'm going to get rid of these and fill the holes with epoxy or something. Seems to me they do nothing but provide a potential leak.
With no load on it, its unlikely to leak for a long time. 
You might find that they look smarter fitted as they are then whatever epoxy you use to fill it. Gelcoat non skid repairs are tricky to get right. 

 

steele

Super Anarchist
1,681
204
Land of the locks
The screw may have been part of an in-hauler set up for the jib sheet. The strap is for attaching a shock cord to pull the jib car forward.

 
Last edited by a moderator:

George Dewey

Super Anarchist
2,071
118
Charleston, SC
With no load on it, its unlikely to leak for a long time. 
You might find that they look smarter fitted as they are then whatever epoxy you use to fill it. Gelcoat non skid repairs are tricky to get right. 
Well sadly it may already be leaking. Inside, at the forward end of the port bunk, it looks like someone at one time mounted a pad eye, maybe for lee cloths, but it has pulled off leaving two holes. When it rains hard, a little water drips out of those holes. I need to find and fix that ASAP, before the core becomes seriously damaged. I plan to use a hose and work my way up, but every other potential leak source is below those holes. Hopefully I can use a vacuum pump to boil and suck the water out, then seal it up. Maybe bring some epoxy in as well. As of now it still feels solid so I'm optimistic.

The screw may have been part of an in-hauler set up for the jib sheet. The strap is for attaching a shock cord to pull the jib car forward.
Ah, didn't think of that. That's a good bet. 

 

steele

Super Anarchist
1,681
204
Land of the locks
I was at the marina and took this shot today, a J99 on my dock. In your case the strap at the forward end of the track is probably for the in-hauler. On my 109 it is the forward attachement point for the shock cord that pulls the car back, not forward as I wrote. The cord goes to the aft end of the track through a block then forward to the car. The screw may not be part of the system, although this boat also has one, not sure why.  IMG_4457.jpg

 

JJK

New member
George,  the J/111 deck core is Corecell foam, not balsa if that's what you were thinking. So good idea to fix the leak, but shouldn't get seriously damaged like balsa would.

 

steele

Super Anarchist
1,681
204
Land of the locks
If you figure out the leak please post here. Although I have a 109, I may also have a leak at the forward port bunk (settee berth). I do not have a screw or any other penetration anywhere close, so I suspect it came from the mast collar at the deck penetration. I recall yours was completely unsealed so it may be the culprit. 

 

George Dewey

Super Anarchist
2,071
118
Charleston, SC
If you figure out the leak please post here. Although I have a 109, I may also have a leak at the forward port bunk (settee berth). I do not have a screw or any other penetration anywhere close, so I suspect it came from the mast collar at the deck penetration. I recall yours was completely unsealed so it may be the culprit. 
I'll post what I find.

 

George Dewey

Super Anarchist
2,071
118
Charleston, SC
Does it go into one end of a belowdecks grab rail?  Maybe the cabintop grab rail stud does double duty at the other end?
This. Mystery solved. A crew member pointed out that, if I measure properly, I see that it's a thru bolt for a handrail inside. I don't know if its aftermarket original. The leak is from a tack line fairlead. A little flex tape stopped it temporarily and I'll be rebedding it tomorrow, weather permitting. We had a downpour yesterday and I was able to get on the boat and find a few small leaks.

 
Last edited by a moderator:
Top