Slipping clutch. Dyneema etc

[roblpm]

We race a cruising boat. Last season the 25 year old barton clutches were slipping so I lazily replaced them so as to not drill new holes.

Well guess what, the main halyard still slips!

Its 8mm dyneema. We have tried chopping a bit off the halyard to see if its just a compressed bit of rope but no different.

Im not going to put better clutches on now having just renewed them.

So the next plan is 10mm dyneema. However I just saw some "cruising dyneema" in the chandlers that looks less slippery? Should we try this?

Any ideas before I order a new halyard?

 

[michael_w]

Fit Spinlock clutches, they work.

 

[roblpm]

Fit Spinlock clutches, they work.

Hmmmmmmm. Not the required answer! I suppose i could put one on. Doesn't seem to be much of a problem for anything else.

 

[markhomer]

Put an extra covering on in area where you want to stop it , or thread extra core into it

 

[sailorman]

add a larger braid on braid tail, rather akin to when we used wire / rope halliards

 

[roblpm]

add a larger braid on braid tail, rather akin to when we used wire / rope halliards

Do you have a splicing reference for that?

 

[sailorman]

Do you have a splicing reference for that?

do you actually need spoon feeding

 

[roblpm]

do you actually need spoon feeding

No. But just spent 20 minutes subsequently looking and haven't really found anything. I have done some splicing but not end to end. Maybe i will pay the rigger guy to do it!

 

[bbg]

No. But just spent 20 minutes subsequently looking and haven't really found anything. I have done some splicing but not end to end. Maybe i will pay the rigger guy to do it!

Alternative is to buy a cover then slip it on and sew it to the dyneema.

 

[sailorman]

Alternative is to buy a cover then slip it on and sew it to the dyneema.

dont forget when reefed the clutch position on the halliard will change

https://www.marlowropes.com/splicing-instructions

http://www.liros.com/en/service/downloads/spleissanleitungen.html

 

[Chi34]

dont forget when reefed the clutch position on the halliard will change

https://www.marlowropes.com/splicing-instructions

http://www.liros.com/en/service/downloads/spleissanleitungen.html

Quite.

But the other suggestions make good sense.

 

[sailorman]

Quite.

But the other suggestions make good sense.

Post 2 was prol the best, i have Spinlock & Lewmar

 

[roblpm]

Post 2 was prol the best, i have Spinlock & Lewmar

Yes. In fact a 10mm top spec halyard is over £400! I think the best thing is to replace one clutch. And maybe one for the jib halyard. The others don't seem to have as much of a problem.

 

[flaming]

Alternative is to buy a cover then slip it on and sew it to the dyneema.

This is the right answer. We have covers on our main and Jib halyards. Otherwise they would slip in the Spinlock clutches to the point where they're not just losing a bit of tension, but they're not actually holding at all.

If you're racing and winding some tension in, then in my experience no "as fitted as standard to a production cruiser racer" clutch will actually hold a dynema line. Even with a cover we need to keep the halyards on the winches upwind, but the covers give us enough hold to be able to get the kite sheets pre loaded on the final approach to the mark.

 

[roblpm]

This is the right answer. We have covers on our main and Jib halyards. Otherwise they would slip in the Spinlock clutches to the point where they're not just losing a bit of tension, but they're not actually holding at all.

If you're racing and winding some tension in, then in my experience no "as fitted as standard to a production cruiser racer" clutch will actually hold a dynema line. Even with a cover we need to keep the halyards on the winches upwind, but the covers give us enough hold to be able to get the kite sheets pre loaded on the final approach to the mark.

Ok im a bit scared of coming back and asking you how you do it as I was accused of wanting spoonfeeding earlier!!

However if you have a moment to describe the process that would be great.

We have 8mm dyneema. So maybe some 10mm braid on braid? Take about 12 ft (distance between top of mast and second reef) and slide cover over. Then using needle and whipping twine do something??!!

 

[flaming]

Ok im a bit scared of coming back and asking you how you do it as I was accused of wanting spoonfeeding earlier!!

However if you have a moment to describe the process that would be great.

We have 8mm dyneema. So maybe some 10mm braid on braid? Take about 12 ft (distance between top of mast and second reef) and slide cover over. Then using needle and whipping twine do something??!!

To be honest in my experience you spec it with the rigger when you order a new halyard....

This chap seems to know though.

 

[roblpm]

To be honest in my experience you spec it with the rigger when you order a new halyard....

This chap seems to know though.

Ok great thanks.

 

[Ingwe]

Having done the above splice a couple of times I warn you that it is significantly more difficult on an old halyard than it is on a new one because the cover tends to go a bit hard over time, its also not a bad idea to have a quick practice on a spare bit of rope if you are going to do it yourself as my first one was not anything like as neat as I can do them now.

 

[roblpm]

Having done the above splice a couple of times I warn you that it is significantly more difficult on an old halyard than it is on a new one because the cover tends to go a bit hard over time, its also not a bad idea to have a quick practice on a spare bit of rope if you are going to do it yourself as my first one was not anything like as neat as I can do them now.

He only did one end. I assume the cover just goes to the end of the halyard? Or just sits free? Does it not ruffle up?

 

[bbg]

He only did one end. I assume the cover just goes to the end of the halyard? Or just sits free? Does it not ruffle up?

I think that is why the video says you need the cover 60 cm longer than the area you want to cover - 30 cm at each end. I have to say that when I did mine, I just sewed a kevlar cover to the core. Stitched it at each end and in the middle. It was ugly but it worked fine. I did it the way a rigger showed me, but I had limited time to do the work. If I had sufficient time I would do it the way shown in the video.