changing sheaves on masthead problem

[smackdaddy]

Thanks dude. That's all I need.

[therondor]

the halyards in your picture are supposed to be external that is why there are four sheaves in the head not two.

[therondor]

the halyards in your picture are supposed to be external that is why there are four sheaves in the head not two.if you look down from the top you will see that there 2 sheaves per axel, giving you a sheave for and a sheave aft for each halyard.

[therondor]

i cannot see if the cable is wearing into the mastop at all from your pictures if the sheaves are worn to small the abrasion would above and in the welds if so larger ordiameter of new replacement sheaves is your best choice