Sea Sure Ratchet adjuster Pt No 21-56

AntarcticPilot

AntarcticPilot

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www.cooperandyau.co.uk
I have the above backstay adjuster, and it's got stuck so it will neither tension nor slacken the backstay. The little knob that turns to select tension/slacken is jammed. in a mid-way position.

I have been in touch with Sea Sure and they have no documentation about this part (it hasn't been made for 20+ years). The sales guy is going to ask some of their older engineers, but he didn't hold out much hope!

Of course, I can investigate - there are some fairly obvious screws to undo and so on. But I'd prefer not to do it blind; there are probably all sorts of small parts inside! Does anyone have any information that they can share with me?
 
JumbleDuck said:
Reliance Marine claim to sell them, for a mere £695.70 ... Reliance Marine - *Ratchet Backstay Adjuster - 7mm 21-56. Baseline Marine want £748.60 ... Baseline Marine Products Ltd - Ratchet Backstay Adjuster for 7mm Wire
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I found that, too, and was deeply suspicious - new old stock, I suspect! Actually, the price isn't silly; the equivalent Wichard part costs nearly £800. But what I really want is some technical information - I suspect it is serviceable, but I don't want to open it and find springs and ball-bearings going "PING" into corners of the cabin!

I suffer from the problem of having a yacht that was bought by a family of racers who spared no expense when fitting her out - she was, I understand, a stop-gap while they had another boat built! JD, her original name was Crusader, which might give you some clues. It's very nice to have winches everywhere you can imagine a winch being useful - two-speed winches in most cases! But it does tend to bite back when it's something like this.
 
AntarcticPilot said:
I found that, too, and was deeply suspicious - new old stock, I suspect! Actually, the price isn't silly; the equivalent Wichard part costs nearly £800. But what I really want is some technical information - I suspect it is serviceable, but I don't want to open it and find springs and ball-bearings going "PING" into corners of the cabin!
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It's probably a relatively simple mechanism. As long as you dismantle it in a controlled space, there shouldn't be a problem. After all, the Reliance Marine description says "...should any accidental damage occur a competent technician anywhere in the world could repair it."
 
pvb said:
It's probably a relatively simple mechanism. As long as you dismantle it in a controlled space, there shouldn't be a problem. After all, the Reliance Marine description says "...should any accidental damage occur a competent technician anywhere in the world could repair it."
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I may not qualify as a "competent technician"!
 
AntarcticPilot said:
It's my brother who is the car maniac, not me! But I've had similar experience with other small machinery.
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The first time I pulled a synchro hub apart I was working at a bench on the mezzanine level of a large, crowded workshop. Three little balls, three little springs, all bouncing off things for what seemed like five minutes. And I found every single one.

That was also the only time I pulled a synchro hub apart.
 
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JumbleDuck said:
The first time I pulled a synchro hub apart I was working at a bench on the mezzanine level of a large, crowded workshop. Three little balls, three little springs, all bouncing off things for what seemed like five minutes. And I found every single one.

That was also the only time I pulled a synchro hub apart.
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I did once replace the friction plate in the clutch on a 1970s Toyota Corolla on the roadside! But the difference between my brother and I is that he'd do it for fun - I did it because I was broke! The main problem was that I was working after dark, and when I got it back together the work light had flattened the battery. Fortunately, I was at the top of a hill!
 
Hi Paul. Do you want it or need it? It's not standard on a Moody 31. I'd just make sure that the tension was where it should be and next time it's re-rigged I'd dispense with it.
Yours sincerely, Non-racer.
 
MoodySabre said:
Hi Paul. Do you want it or need it? It's not standard on a Moody 31. I'd just make sure that the tension was where it should be and next time it's re-rigged I'd dispense with it.
Yours sincerely, Non-racer.
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Thanks, Roger. I'd worked out it probably wasn't original equipment - but Capricious was first owned by serious racers. If I can't fix it, I'll probably replace it with a bottle screw.
 
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