Forums General Discussion Mast head sheeve

Viewing 4 reply threads
  • Author
    Posts
    • #225724
      figie47gmail-com
      Participant

      Has anyone changed the masthead halyard sheeves on their ketch 424?
      If so do you have the specs?
      Does anyone have photos of the masthead showing the sheeve set-up?

      Main sail drops only half way down. I will clean the track, change the running rigging and change the sheeves.

      Cleaning the track is a must and it’s time to upgrade all the running rigging.
      If I do the job I might as well go all the way and upgrade the sheeves.

      Thanks for any help you can pass along.
      S/V Patricia Bess #218

    • #225725
      Dunphyje
      Participant

      Figie,
      If you do get the specification on those sheaves please send along a copy..
      I would like to change out my wire to rope halyards to all rope and would need to change out the sheaves when doing that..
      Thanks..
      John
      S/V Mela

    • #225730
      sumocean
      Participant

      I did the same, switching from wire, I ordered from https://www.zephyrwerks.com/
      They have the specs for the 424 I think. If not let me know and I will go to the boat and look for the invoice.
      Linus

    • #225732
      dhjppn
      Participant

      Ron suggested I forward this to group so here it is.

      – pat

      Begin forwarded message:

      From: pat noordsij <dhjppn@gmail.com>
      Subject: Re: Mast head sheeve
      Date: October 9, 2020 at 9:01:34 PM CDT
      To: figie47@gmail.com

      So now that I sent that message I, of course, found the notes on the sheaves.

      4 Main sheaves –
      Diameter: 4.75”
      Axle: 5/8”
      Width: 5/8”
      We reused the existing axle as it was in good shape. Doris is a fresh water boat.

      2 Mizzen sheaves –
      Axle: 3/8”
      Width: 1/2”
      Can’t find the diameter measurement

      Attached are pictures of our notes page. These notes are from Spring 2004.

      On Fri, Oct 9, 2020 at 7:57 PM pat noordsij <dhjppn@gmail.com> wrote:
      We purchased 6 sheaves from Zephrwerks
      (https://www.zephyrwerks.com/) in Port Townsend WA in ~ 2006.

      We opted for all rope delrin sheaves. We’ve been very happy with them.

      I can’t find the invoice right now but we should have the specs on the boat. We’ll look tomorrow.

      – pat (and dave)

      On Fri, Oct 9, 2020 at 16:14 figie47gmail-com <figie47@gmail.com> wrote:
      Has anyone changed the masthead halyard sheeves on their ketch 424?

      If so do you have the specs?

      Does anyone have photos of the masthead showing the sheeve set-up?

      Main sail drops only half way down. I will clean the track, change the running rigging and change the sheeves.

      Cleaning the track is a must and it’s time to upgrade all the running rigging.

      If I do the job I might as well go all the way and upgrade the sheeves.

      Thanks for any help you can pass along.

      S/V Patricia Bess #218

      IMG_1522

      IMG_1523

      Attachments:
      1. sheave info - main

      2. sheave info - mizzen

    • #225735
      dhjppn
      Participant

      Ron suggested I forward this to group so here it is.

      – pat

      Begin forwarded message:

      From: pat noordsij <dhjppn@gmail.com>
      Subject: Re: Mast head sheeve
      Date: October 9, 2020 at 9:01:34 PM CDT
      To: figie47@gmail.com

      So now that I sent that message I, of course, found the notes on the sheaves.

      4 Main sheaves –
      Diameter: 4.75”
      Axle: 5/8”
      Width: 5/8”
      We reused the existing axle as it was in good shape. Doris is a fresh water boat.

      2 Mizzen sheaves –
      Axle: 3/8”
      Width: 1/2”
      Can’t find the diameter measurement

      Attached are pictures of our notes page. These notes are from Spring 2004.

      On Fri, Oct 9, 2020 at 7:57 PM pat noordsij <dhjppn@gmail.com> wrote:
      We purchased 6 sheaves from Zephrwerks
      (https://www.zephyrwerks.com/) in Port Townsend WA in ~ 2006.

      We opted for all rope delrin sheaves. We’ve been very happy with them.

      I can’t find the invoice right now but we should have the specs on the boat. We’ll look tomorrow.

      – pat (and dave)

      On Fri, Oct 9, 2020 at 16:14 figie47gmail-com <figie47@gmail.com> wrote:
      Has anyone changed the masthead halyard sheeves on their ketch 424?

      If so do you have the specs?

      Does anyone have photos of the masthead showing the sheeve set-up?

      Main sail drops only half way down. I will clean the track, change the running rigging and change the sheeves.

      Cleaning the track is a must and it’s time to upgrade all the running rigging.

      If I do the job I might as well go all the way and upgrade the sheeves.

      Thanks for any help you can pass along.

      S/V Patricia Bess #218

      IMG_1522

      IMG_1523

      Attachments:
      1. sheave info - main

      2. sheave info - mizzen

Viewing 4 reply threads
  • You must be logged in to reply to this topic.