Daydream believer
Well-Known Member
But hiring the tug to lift & then return & replace the mooring is expensive ( £500-00 per visit)
Bolt type pin shackles
- Thread starter Boo2
- Start date
But hiring the tug to lift & then return & replace the mooring is expensive ( £500-00 per visit)
Lon nan Gruagach
Well-Known Member
Is this a permanent join? If so, have it welded.
Boo2
Well-Known Member
Not really practical to do any welding at the mooring but it did occur to me that it would be possible to soft solder the pin in the shackle, anyone know how the tin/silver/lead in solder would affect the galvanised coating ?
Also, what temperature does zinc melt at ? Would it be possible to solder the pin in place using zinc wire instead of standard solder ? Anyone done this ?
Boo2
vyv_cox
Well-Known Member
I think you would find that thread lock compounds are just as strong as soft solder. I have never heard of anyone soldering with zinc, sounds like a challenge on the boat. Possible PBO article?
Daydream believer
Well-Known Member
We use 19*95 long link chain. The largest shackle that can be forced through the link is 22*25.
On the one occasion I bought 19*65 chain I found we could only get 19*22 shackles on the chain & then only on the last link
But bearing in mind the chain only lasts 4 years for smaller boats & 3 years for larger ones there is no point in using bigger shackles in respect of wear ( although coming undone is a different scenario)
What we do on the sinker end is pass the chain through the hoop& use 2 shackles through the chain about 3 links apart & I suggest that would solve the OP's problem.
The shackles further up the chain can be checked annually without lifting the sinker if done at low tide