Bought this hobie used... (haven't we all?)... and I'm not sure of the masthead story. It looks as if someone replaced the sheave at some point (or maybe the masthead altogether) with a smaller sheave: The halyard line doesn't seem to cleanly come off the sheave to the cable stopper (the forked piece)... it looks like it rubs against the mast as seen by the wear in the pictures. (I've put 2 photos in the post. Check them out.) This to me says the sheave is too small (in diameter). And honestly, it looks like it's too small.
I've seen pictures of halyards coming straight down off the sheave and connecting to the forked piece -- and the line was beautifully parallel to the mast. But that's not the case for mine.
What are your thoughts? Do I need to replace the sheave, and if so, what's the correct diameter?