I think I used a rubber belt device intended for removing screwed bottle tops to grip one half of the "egg" and a vice (very gently and with rubber padding) to hold the other half and whilst stiff, it moved and unscrewed.
I also suffered this problem and replaced the mounting having first slightly realigned it which I hoped would reduc the likelihood of further wear. I also was alerted to the problem by the annoying knocking which disturbed my sleep at times. I have since annually greased the mounting but suspect...
Thanks. Sadly the thread linked in your 2018 post seems no longer to be available. I‘ll see how I get on once the block is removed and if the pin can then be removed I shall have options.
Thanks for this advice. Removal seems to be the way to go. I hope that the attachment screws are into captive nuts as it will otherwise be a pita to remove.
May I please
ask for any practical guidance on servicing this deck mounted block/fairlead. Should it come apart if the small screw on the plate on the upper face is removed? All seems solid upon removing that screw and I do not wish to apply force until assured of the correct approach.