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Discussion Starter #1
I have a Spinlock XT clutch on my 28 foot sailboat. I've been experiencing slippage of the jib halyard (left side of this double clutch) and when I went to inspect it today (the boat is tarped up for winter) I noticed that in fact the cams of both sides of the clutch are not engaging the line.

I took a video that explains the situation better. Sorry for the bad video work. It was dark!

https://youtu.be/eFppvpAm5oM

Basically I'm wondering if I need to buy two new cams for this or if the problem is something else?
 

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landofrainandgray
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When was the last time you replaced the innards? You can buy rebuild kits that make them like new again, provided your line is matched to the clutch size.
 

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Discussion Starter #5
I bought the boat in 2011 and have never replaced the parts so have no idea how old they are.

Judging by the cost of new cams, it almost looks easier to just buy a whole new clutch!
 

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landofrainandgray
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Depends--you have to rebed the clutch and if you buy a new one, you hope the new footprint is the same. I don't like new holes...
 

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Stop trying to spend money!!!

End for end the bloody halyard!

Like every other bit of running rigging wherever it touches the case gets smoothed and the core stretched. So where it normally sits on a block under load, or a clutch under load, or some chafe point, you will have a problem that's so easily and free (FREE) to fix. :)
Just end for end your halyard, or any bit of running rigging, and you have given it a new lease of life! :)

Mark
 

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The broken spring you will have to replace, you should be able to order a new part. Mark is correct about reversing your lines end for end. Those teeth really like to eat line and create very fine dust that binds up the movement of internal parts, so get your self a compressor and clean out with high pressure air. Did both of those on a friends boat this summer and they were like brand new.

Peter
 

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Discussion Starter #10
The broken spring only seems to be part of the problem. If you watch my video on the first post you see that neither cam is grabbing the line well. Perhaps I need to clean them?
 

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I have never been happy with Spinlock for halyards. they don't like high tech line and eats it up fast. I changed to Ronstan Constrictor clutch and they never slip and no wear on the line. Same bolt pattern as the spinlock
CONSTRICTOR | Ronstan Sailboat Hardware US
Do you use these on Amsteel (or equivalent) or a core dependent line such as Warpspeed?

I have a Warpspeed halyard, and the core slipped out of the cover (which of course snapped) at the Spinlock. I had stitched the cover to the core at the full hoist point, but had not gotten around to it at the reefing point.

But I wonder if the Ronstan constrictor would make any difference? It's still a matter of a slippery load bearing line inside of a weak core.
 

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I have tapered 5/16" Warpspeed halyards and they are fine. the constrictor holds the line along a 2 foot section and not only at one point. the spinlock pinches the line flat. the constrictor is holding a round line with a round braid. does not stress the line or slip.
 

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IIRC Don't think you can just buy the broken spring but have to buy the whole guts of the clutch. The core replacement was quite pricey, around $60 IIRC. Had one break a spring and found a used replacement on eBay for less than the kit. Found a kit at a consignment store but it didn't fit my clutch. Luckily was able to return it. Know what flavor of clutch you have so you can buy the right kit.

The other clutch, if it doesn't have a broken spring, may just need to lubricated to get the cam to drop on the rope. It's probably a broken or weakened spring that's causing the problem with that one as well.
 

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Discussion Starter #14
IIRC Don't think you can just buy the broken spring but have to buy the whole guts of the clutch. The core replacement was quite pricey, around $60 IIRC. Had one break a spring and found a used replacement on eBay for less than the kit. Found a kit at a consignment store but it didn't fit my clutch. Luckily was able to return it. Know what flavor of clutch you have so you can buy the right kit.

The other clutch, if it doesn't have a broken spring, may just need to lubricated to get the cam to drop on the rope. It's probably a broken or weakened spring that's causing the problem with that one as well.
Thanks. The cam in this clutch is CAM-0608 which I don't think Spinlock sells anymore. The replacement is the 0610 (6-10mm line) but since I want to use 8mm line I'd rather use a 0608 module.

My halyards right now are polyester double braid and I want to switch to dyneema core with poly cover, which is where this whole process began because then I started reading about clutch slippage and I thought "why bother spending hundreds of dollars on expensive line if the clutches just slip anyway?"

I've heard that Spinlock clutches are generally worse and in particular New England brand ropes for holding power. I have all spinlock clutches (three XA and one XT). The Ronstan constrictor clutch clearly holds perfectly but it's expensive and also takes up more deck space so I'm not sold on that.

I have tried lubricating the side of the clutch with the apparently intact spring and it made no difference unfortunately.
 

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Thanks. The cam in this clutch is CAM-0608 which I don't think Spinlock sells anymore. The replacement is the 0610 (6-10mm line) but since I want to use 8mm line I'd rather use a 0608 module

I've heard that Spinlock clutches are generally worse and in particular New England brand ropes for holding power. I have all spinlock clutches (three XA and one XT). The Ronstan constrictor clutch clearly holds perfectly but it's expensive and also takes up more deck space so I'm not sold on that.
They don't really hold on any brand of high tech line. ask any racer and most will tell you that they tried everything they could think of and ended up either using two clutches on one line or on the smaller boats they use a cam cleat after the clutch. I don't understand how a constrictor would take up more deck space when they are smaller then the clutch and the constrictor is over the line that is already occupying the deck space. yes they do coast a bit more then a clutch but the clutch does not work and by the time you spend the money trying to make them work you will have spent more. I have been there and done just what you are trying now on my old boat. I bought a new boat and the factory brand new clutches slipped so I decided not to go through it all over again and changed to the constrictors and problem solved. I still have 6 XAS clutches for the lighter loads and they seem to work ok. just changed the 2 XTS that were for the halyards
 

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Thanks. The cam in this clutch is CAM-0608 which I don't think Spinlock sells anymore. The replacement is the 0610 (6-10mm line) but since I want to use 8mm line I'd rather use a 0608 module.
Spinlock XT, XTS, XC & XCS Rope Clutch Cam Modules - Rope Clutches - Cleats & Rope Clutches - Sailboat Hardware & Rigging - Downwind Marine


My halyards right now are polyester double braid and I want to switch to dyneema core with poly cover
Might want to talk to a rigger that has experience in racing sailboats.

I've heard that Spinlock clutches are generally worse and in particular New England brand ropes for holding power. I have all spinlock clutches (three XA and one XT). The Ronstan constrictor clutch clearly holds perfectly but it's expensive and also takes up more deck space so I'm not sold on that.
It's not NER, it's double braid polyester. And due to it's weave and stretch, tends to get skinny while under load.

I have tried lubricating the side of the clutch with the apparently intact spring and it made no difference unfortunately.
The springs are shot then. Take it apart and double check everything is in one piece, and then replace the springs/and or cam. The issue is you have dirt or rope particles gumming up the cams and spring. Or you have a weak/broken spring judging by your video.

For a 28' boat, those clutches should work fine. Make sure both cams (top and bottom) are clean and not damaged. Shoot me an email if you'd like more help.
 

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Discussion Starter #17
Spinlock XT, XTS, XC & XCS Rope Clutch Cam Modules - Rope Clutches - Cleats & Rope Clutches - Sailboat Hardware & Rigging - Downwind Marine

The springs are shot then. Take it apart and double check everything is in one piece, and then replace the springs/and or cam. The issue is you have dirt or rope particles gumming up the cams and spring. Or you have a weak/broken spring judging by your video.

For a 28' boat, those clutches should work fine. Make sure both cams (top and bottom) are clean and not damaged. Shoot me an email if you'd like more help.
OK I disassembled the clutch and indeed both springs were the problem. On the left side the spring was bent and damaged beyond repair I think. On the right side, the spring end that attached to the metal frame of the cam had come out of the small hole. I was able (with some difficulty) to get it back in but I'm unsure how long this would last in use. Frankly it seems like a Mickey Mouse design flaw to me, and not very robust.

See attached pic

I don't understand how a constrictor would take up more deck space when they are smaller then the clutch and the constrictor is over the line that is already occupying the deck space. y
You're right I was thinking more I guess of the extra lanyards. Do those every get in the way?
 

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looks like you too are experiencing the mickey mouse spring that is designed so well that it self destructs. no the lanyards are not in the way they are only about 3 " long when you release the constrictor. when the constrictor is holding the halyard they are about 1" long
https://www.youtube.com/watch?v=s3lDtpERYg8
You can tie the release ball very close to the clutch
 

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Discussion Starter #19
I rebuilt the clutch with the repaired cam on the one side and it works fine. Let's see how long the spring lasts...

Still need to buy a new cam for the other side though.

The Constrictor clutch looks great but I'll try this cheaper fix for now and see how it does.
 
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