Halyard sheave hole query

[bloggs1968]

Hi all,

I am refurbishing my mast at the moment and have removed the old wire halyard exit sheave box for the jib halyard ( an older discontinued Ronstan product). I am changing to spectra halyards but I have been unable to find a sheave that corresponds to the rivet hole pattern for the old one.

Do I just drill new holes right next to the old ones? This would seem to be weakening the spar to me. I can use the middle ones ( or top or bottom holes).

Any ideas??

regards,

Andrew

[Brent B]

You can also consider drilling some of the new holes in the sheave box flange to match the existing holes in the spar.

Brent

[SVTinCup]

This is something that I certainly did overlook. I replace the wire/rope main halyard on our boat and replaced it with an all rope (low stretch new-tech stuff) and did not replace the sheave. The new halyard runs across the sheave OK but it probably is not seating properly. It is always something! Taking it one step further, I have thought of replacing the old Hood Stoboom with the original boom and a full batten main, but the stoboom works and there are always other pressing projects. SV Tin Cup

[bloggs1968]

SV Tin Cup,

I had a Hood Sto boom on my last boat ( 34") when I bought it. I thought at the time I would leave it on for a season and if it didn't do it for me I would replace it. Well I can tell you that despite operating it as per manual and having the correct set up, the sto boom ended up being caled "that #*@*&% piece of s%%&^!

It used to be a hassle when you have to say reduce past the first reef point in stronger winds as the sail used to ride forward on the boom if the angle wasn't just right.

I got rid of it and went for a new boom section with a new battened main (2+2) and lazy jacks and was much happier.

regards,

Andrew