Pulley for Dinghy Mooring Ground Tackle.

Someone earlier mentioned truckers pulley ... you can get them down to quite small size and they come with two pins .... one is of course the axle for the sheave ... the second is usually a nut + bolt or split pin affair - to allow the side cheek to be opened and wire / rope inserted - then closed and secured.

I have such on my 1T HIAB .. it has a sprung hook as well - that allows me to clip it at any of the three extension points of the arm.
 
NormanS said:
If your dinghy is always attached to the running mooring at the same point, why does the line have to be spliced?
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Because it’s a communal bit of kit, and someone years ago chose thick line and did a lovely job splicing that line. I know that if I cut it and replaced it with something that runs more freely someone will inevitably complain. But if I just swap the block, nobody will even notice.

In the end I improvised a new sheave pin, and it’ll last long enough that something else will probably fail before it does. Since I can’t easily swap the block out, that’s going to have to be good enough.

If someone else chooses thinner line and a large SS shackle nobody will be happier than me!

None the less, stiff 16-18mm line through an 18mm pulley has worked for years, admittedly with more friction that my vertibrae would like.
 
Refueler said:
The lakes here use this endless line system ..... and the end is passed through a large Bow Shackle which is fixed to the ring of the metal riser of the buoy .... the buoy of course anchored ..

No need for anything fancy ... they last for years .............. they have boats up to 25ft on such and most endless lines are ~12mm - more than enough .. but reasonable size for the hands.
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Yes. This. Large bow shackle.

18mm D dinghy frape, really? My 26ft yot is attached to the swinging mooring by 16mm strops.

Any type of block is a waste of money.

it will be interesting to see how long an alloy LF ring lasts in mud/salt water.
 
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seeSimon said:
18mm D dinghy frape, really? My 26ft yot is attached to the swinging mooring by 16mm strops.
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I doubt the line was selected for breaking strain. More likely it was what they had to hand, or abrasion resistance , or something easy to grip in the hand.
 
Refueler said:
Then I don't see the problem - if you refit with working reasonable solution ?

Would it be an idea to discuss with other potential users of the setup ?
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I've put it back better than it was when I found it. I've told everyone who uses it what I've done. With luck, the next person who breaks it will have more time than I do and can replace it with something better. Of course, if that person is the same person who did it before it will be 17mm line and a pulley! 😁
 
I've had a dinghy mooring on a tidal river (similar to the Dart) for 40 odd years. My set up is typical.
However, I did have access to old climbing ropes, D12/13mm, which seem ideal as smooth, and stretchy.

Name.
BTW, hereabouts we call that mooring type a "frape".
 
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