Stus-List Re: masthead sheave thoughts?

[Della Barba, Joe via CnC-List]

Isn’t that like buying a new car when you have a flat tire??
Joe
Coquina
-Original Message-
From: Adam Hayden via CnC-List 
mailto:cnc-list@cnc-list.com>>
To: Stus-List mailto:cnc-list@cnc-list.com>>
Cc: CHARLES SCHEAFFER mailto:cscheaf...@comcast.net>>; 
Adam Hayden mailto:hayden.a...@hotmail.com>>
Sent: Sun, Jan 31, 2021 7:42 pm
Subject: Stus-List Re: masthead sheave thoughts?
I think that for me when it's time to replace the sheaves it will be time to 
replace the boat and let the next owner deal with it.

Adam Hayden
C 36
Pictou N S
Thanks to all of the subscribers that contributed to the list to help with the 
costs involved.  If you want to show your support to the list - use PayPal to 
send contribution --  https://www.paypal.me/stumurray Thanks - Stu
Thanks to all of the subscribers that contributed to the list to help with the 
costs involved.  If you want to show your support to the list - use PayPal to 
send contribution --   https://www.paypal.me/stumurray  Thanks - Stu

Stus-List Re: masthead sheave thoughts?

[Richard Bush via CnC-List]

 Expensive replacements are not a requirement: when I purchased my 37, the 
sheaves would not turn at all; I removed them (mast down, of course) and used 
very fine emery cloth on the sheaves and the axles; they still spin freely 
without friction after five years..; I have the old wire sheaves but switched 
to all rope halyards without issues;
Richard
 
s/v Bushmark4: 1985 C 37 CB: Ohio River, Mile 596;

Richard N. Bush Law Offices 
2950 Breckenridge Lane, Suite Nine 
Louisville, Kentucky 40220-1462 
502-584-7255 
 
-Original Message-
From: Adam Hayden via CnC-List 
To: Stus-List 
Cc: CHARLES SCHEAFFER ; Adam Hayden 

Sent: Sun, Jan 31, 2021 7:42 pm
Subject: Stus-List Re: masthead sheave thoughts?

I think that for me when it's time to replace the sheaves it will be time to 
replace the boat and let the next owner deal with it.
Adam HaydenC 36Pictou N SThanks to all of the subscribers that contributed to 
the list to help with the costs involved.  If you want to show your support to 
the list - use PayPal to send contribution --  https://www.paypal.me/stumurray  
Thanks - StuThanks to all of the subscribers that contributed to the list to help with the 
costs involved.  If you want to show your support to the list - use PayPal to 
send contribution --   https://www.paypal.me/stumurray  Thanks - Stu

Stus-List Re: masthead sheave thoughts?

[Adam Hayden via CnC-List]

I think that for me when it's time to replace the sheaves it will be time to 
replace the boat and let the next owner deal with it.

Adam Hayden
C 36
Pictou N S
Thanks to all of the subscribers that contributed to the list to help with the 
costs involved.  If you want to show your support to the list - use PayPal to 
send contribution --   https://www.paypal.me/stumurray  Thanks - Stu

Stus-List Re: masthead sheave thoughts?

[Matthew via CnC-List]

I went up the mast at the end of the season to remove the genoa halyard
sheaves for replacement.  I discovered that they cannot be removed on my
boat (C 42 Custom) with the mast up, or at least not easily, because the
forestay is in the way.  This project will need to wait until the mast is
down.  

 

From: Paul Fountain via CnC-List  
Sent: Saturday, January 30, 2021 7:17 PM
To: Stus-List 
Cc: Paul Fountain 
Subject: Stus-List Re: masthead sheave thoughts?

 

Our 33-ll the top lifts off . . . 

 

Paul

  _  

From: Adam Hayden via CnC-List mailto:cnc-list@cnc-list.com> >
Sent: Saturday, January 30, 2021 5:30:26 PM
To: Stus-List mailto:cnc-list@cnc-list.com> >
Cc: Adam Hayden mailto:hayden.a...@hotmail.com> >
Subject: Stus-List Re: masthead sheave thoughts? 

 

This is a timely post.  How do you access the sheaves at the top of the
mast?  My masthead is welded completely.  I have seen other masts where the
top plate is bolted on.

 

Adam

C 36

Pictou NS

Thanks to all of the subscribers that contributed to the list to help with the 
costs involved.  If you want to show your support to the list - use PayPal to 
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Stus-List Re: masthead sheave thoughts?

[Marek Dziedzic via CnC-List]

+1 on Zephyrworkd

Marek


 Original message 
From: Sam Salter via CnC-List 
Date: 2021-01-30 17:25 (GMT-05:00)
To: Stus-List 
Cc: Sam Salter 
Subject: Stus-List Re: masthead sheave thoughts?

I replaced my Rope/wire halyards with all rope about 12 or 13 years ago. But I 
also replaced the masthead sheaves:
https://www.zephyrwerks.com/<https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.zephyrwerks.com%2F=04%7C01%7C%7C6dba6274014a461cd96708d8c56df60e%7C84df9e7fe9f640afb435%7C1%7C0%7C637476423353772550%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000=kGM2aINo3LUaKLucuUhYfgONrGAJh0e3JNrFG9P4ifU%3D=0>

I haven’t noticed any significant wear on the halyards.
When I replaced the sheaves I also rebuilt the sheave box at the top of the 
mast. There were some metal partitions in there that had worn razor sharp in 
the previous 30 years. So it might be your wire groove or your sheave box or 
both!

sam
C 26  Liquorice
Ghost Lake  Alberta


On Jan 30, 2021, at 2:54 PM, Dave S via CnC-List  wrote:



My all-rope main halyard is wearing somewhat after 4 seasons or so, and I 
should probably replace it..

It is often stated that when transitioning from wire/rope to all rope halyards, 
that sheaves must be replaced with an appropriate type, presumably without any 
wire groove.

The main halyard is the widest of all of the 5 lines that pass over these 
sheaves, and is as large an OD as the sheave can accommodate.   It is also the 
most often used, and when at the dock is attached to the end of the boom, so it 
is subject to chafe than the others, even in repose.

Is the wear I'm seeing a result of this shallow groove in the sheave, the 
diameter of the halyard, or is it simply normal wear under the circumstances?

If I should replace the sheave, can anyone suggest a source and type?

pics here:


https://cncwindstar.blogspot.com/2021/01/new-sheaves.html<https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fcncwindstar.blogspot.com%2F2021%2F01%2Fnew-sheaves.html=04%7C01%7C%7C6dba6274014a461cd96708d8c56df60e%7C84df9e7fe9f640afb435%7C1%7C0%7C637476423353782504%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000=b%2FnHBpKR4Lz5RKbAE9Bt55hIW2ZAe%2Fhb3SOikRsbDNs%3D=0>

Thanks!

Dave 33-2 Windstar.

Thanks to all of the subscribers that contributed to the list to help with the 
costs involved.  If you want to show your support to the list - use PayPal to 
send contribution --   https://www.paypal.me/stumurray  Thanks - Stu
Thanks to all of the subscribers that contributed to the list to help with the 
costs involved.  If you want to show your support to the list - use PayPal to 
send contribution --   https://www.paypal.me/stumurray  Thanks - Stu

Stus-List Re: masthead sheave thoughts?

[CHARLES SCHEAFFER via CnC-List]

FWIW, I sent my OEM "veed for wire" sheaves to Zepherwerks and he made me new 
sheaves for rope and new axles too.   He called me and said the sheaves didn't 
need replacing, but I chose to do it as I can't see doing all that work to put 
old parts back in.  He was very reasonable.  Now is a good time to do it.

Chuck S

> On 01/30/2021 7:24 PM ALAN BERGEN via CnC-List  
> wrote:
>  
>  
> Get your sheaves fromhttp://www.zephyrwerks.com . I have one which I 
> removed from my old mast. It's in very good condition. 3 1/4"d X 1/2" X 1/2" 
> pin diameter. $35 plus postage.
> 
> Alan Bergen
> 35 Mk III Thirsty
> Rose City YC
> Portland, OR
> 
> On Sat, Jan 30, 2021 at 1:54 PM Dave S via CnC-List < 
> cnc-list@cnc-list.com mailto:cnc-list@cnc-list.com > wrote:
> 
> > > 
> > My all-rope main halyard is wearing somewhat after 4 seasons or so, 
> > and I should probably replace it..   
> > 
> > It is often stated that when transitioning from wire/rope to all 
> > rope halyards, that sheaves must be replaced with an appropriate type, 
> > presumably without any wire groove.  
> > 
> > The main halyard is the widest of all of the 5 lines that pass over 
> > these sheaves, and is as large an OD as the sheave can accommodate.   It is 
> > also the most often used, and when at the dock is attached to the end of 
> > the boom, so it is subject to chafe than the others, even in repose.
> > 
> > Is the wear I'm seeing a result of this shallow groove in the 
> > sheave, the diameter of the halyard, or is it simply normal wear under the 
> > circumstances? 
> > 
> > If I should replace the sheave, can anyone suggest a source and 
> > type?
> > 
> > pics here:
> > 
> >  
> > 
> > https://cncwindstar.blogspot.com/2021/01/new-sheaves.html 
> > https://urldefense.com/v3/__https://cncwindstar.blogspot.com/2021/01/new-sheaves.html__;!!LIr3w8kk_Xxm!4MC4F4-8EPG_pR0KmbULmSTOni9v0ekCCmcbxFqzA6wQlimEmcjSDanKHjRBh7saXo4$
> > 
> > Thanks! 
> > 
> > Dave 33-2 Windstar.
> > 
> > Thanks to all of the subscribers that contributed to the list to 
> > help with the costs involved.  If you want to show your support to the list 
> > - use PayPal to send contribution --
> > https://urldefense.com/v3/__https://www.paypal.me/stumurray__;!!LIr3w8kk_Xxm!4MC4F4-8EPG_pR0KmbULmSTOni9v0ekCCmcbxFqzA6wQlimEmcjSDanKHjRByRUmFYU$
> >Thanks - Stu
> > 
> > > Thanks to all of the subscribers that contributed to the list to 
> > help with the costs involved. If you want to show your support to the list 
> > - use PayPal to send contribution -- https://www.paypal.me/stumurray Thanks 
> > - Stu
> 
Thanks to all of the subscribers that contributed to the list to help with the 
costs involved.  If you want to show your support to the list - use PayPal to 
send contribution --   https://www.paypal.me/stumurray  Thanks - Stu

Stus-List Re: masthead sheave thoughts?

[Dave S via CnC-List]

Ok, thanks all - I’m convinced.  Will replace the main halyard sheave anyway.  
Will splurge on something super low friction, rather than replacing all 5.   
Chuck S’s earlier email and its replies got me thinking about cumulative 
friction and seemingly free-running blocks binding under load.  
Mine don’t do that, I feel I can raise the main pretty easily singlehanded but 
maybe I’m just used to it and it can be made much easier.   (Crew struggle at 
times). If the sail can drop into the lazy jacks more easily that would be a 
help. 
 I have a couple of big-boy racing air blocks in my parts bin for the turning 
blocks at the mast base.  
Next step a big Rolex decal for the topsides!   (Lol)


Bruno - you’re right, the blocks in the boom are an issue for sure.  Am 
interested in your learnings there.  

Dave
Windstar 33-2 (no foils yet)

Sent from my iPhone

> On Jan 30, 2021, at 7:46 PM, Bill Coleman via CnC-List 
>  wrote:
> 
> 
> I think the wire groove is not helping any, but in looking at your pictures, 
> it looked pretty rough.  I think a nice smooth sheave would go a long ways.
> 
> Bill
> 
>> On Sat, Jan 30, 2021, 7:11 PM Dave S via CnC-List  
>> wrote:
>> Do you believe that very shallow wire groove is wearing my halyard?  I find 
>> it hard to believe but what do I know...  the sheaves are otherwise in good 
>> shape since I rebushed them. 
>> 
>> 
>> 
>> 
>> 
>> Sent from my iPhone
>> 
 On Jan 30, 2021, at 6:28 PM, Bruno Lachance  
 wrote:
 
>>> 
>>> Dave,
>>> 
>>> This place has been recomended many times on this list. I ordered new 
>>> sheaves and pins from them ( mast and boom). Mot cheap but Very please with 
>>> the quality.
>>> 
>>> Like you, i also experiment wear with similar « hybrid wire rope sheaves »
>>> 
>>> https://www.zephyrwerks.com/
>>> 
>>> Bruno Lachance
>>> Bécassine 33-2
>>> New-Richmond, Qc
>>> 
>>> 
>>> 
>>> Téléchargez Outlook pour iOS
>>> De : Dave S via CnC-List 
>>> Envoyé : Saturday, January 30, 2021 4:54:05 PM
>>> À : C Stus List 
>>> Cc : Dave S 
>>> Objet : Stus-List masthead sheave thoughts?
>>>  
>>> My all-rope main halyard is wearing somewhat after 4 seasons or so, and I 
>>> should probably replace it..   
>>> 
>>> It is often stated that when transitioning from wire/rope to all rope 
>>> halyards, that sheaves must be replaced with an appropriate type, 
>>> presumably without any wire groove.  
>>> 
>>> The main halyard is the widest of all of the 5 lines that pass over these 
>>> sheaves, and is as large an OD as the sheave can accommodate.   It is also 
>>> the most often used, and when at the dock is attached to the end of the 
>>> boom, so it is subject to chafe than the others, even in repose.
>>> 
>>> Is the wear I'm seeing a result of this shallow groove in the sheave, the 
>>> diameter of the halyard, or is it simply normal wear under the 
>>> circumstances? 
>>> 
>>> If I should replace the sheave, can anyone suggest a source and type?
>>> 
>>> pics here:
>>> 
>>> 
>>> 
>>> https://cncwindstar.blogspot.com/2021/01/new-sheaves.html
>>> 
>>> Thanks! 
>>> 
>>> Dave 33-2 Windstar.
>>> 
>> Thanks to all of the subscribers that contributed to the list to help with 
>> the costs involved.  If you want to show your support to the list - use 
>> PayPal to send contribution --   https://www.paypal.me/stumurray  Thanks - 
>> Stu
> Thanks to all of the subscribers that contributed to the list to help with 
> the costs involved.  If you want to show your support to the list - use 
> PayPal to send contribution --   https://www.paypal.me/stumurray  Thanks - Stu
Thanks to all of the subscribers that contributed to the list to help with the 
costs involved.  If you want to show your support to the list - use PayPal to 
send contribution --   https://www.paypal.me/stumurray  Thanks - Stu

Stus-List Re: masthead sheave thoughts?

[Doug Mountjoy via CnC-List]

I got some sheeves for the girlfriends boat from zypher works. He is a one man 
shop working out of his barn. Needed 4 sheeves. Was told to go get lunch, when 
I got back they were done and mounted into the mast head fitting. Converted 
from wire rope to 3/8 line. Doug Mountjoysv Rebecca Leah C Landfall 39Port 
Orchard yacht club
 Original message From: ALAN BERGEN via CnC-List 
 Date: 1/30/21  19:24  (GMT-05:00) To: Stus-List 
 Cc: ALAN BERGEN  Subject: 
Stus-List Re: masthead sheave thoughts? Get your sheaves from 
www.zephyrwerks.com. I have one which I removed from my old mast. It's in very 
good condition. 3 1/4"d X 1/2" X 1/2" pin diameter. $35 plus postage.Alan 
Bergen35 Mk III ThirstyRose City YCPortland, OROn Sat, Jan 30, 2021 at 1:54 PM 
Dave S via CnC-List  wrote:My all-rope main halyard is 
wearing somewhat after 4 seasons or so, and I should probably replace it..   It 
is often stated that when transitioning from wire/rope to all rope halyards, 
that sheaves must be replaced with an appropriate type, presumably without any 
wire groove.  The main halyard is the widest of all of the 5 lines that pass 
over these sheaves, and is as large an OD as the sheave can accommodate.   It 
is also the most often used, and when at the dock is attached to the end of the 
boom, so it is subject to chafe than the others, even in repose.Is the wear I'm 
seeing a result of this shallow groove in the sheave, the diameter of the 
halyard, or is it simply normal wear under the circumstances? If I should 
replace the sheave, can anyone suggest a source and type?pics 
here:https://cncwindstar.blogspot.com/2021/01/new-sheaves.htmlThanks! Dave 33-2 
Windstar.
Thanks to all of the subscribers that contributed to the list to help with the 
costs involved.  If you want to show your support to the list - use PayPal to 
send contribution --   
https://urldefense.com/v3/__https://www.paypal.me/stumurray__;!!LIr3w8kk_Xxm!4MC4F4-8EPG_pR0KmbULmSTOni9v0ekCCmcbxFqzA6wQlimEmcjSDanKHjRByRUmFYU$
   Thanks - Stu
Thanks to all of the subscribers that contributed to the list to help with the 
costs involved.  If you want to show your support to the list - use PayPal to 
send contribution --   https://www.paypal.me/stumurray  Thanks - Stu

Stus-List Re: masthead sheave thoughts?

[Bill Coleman via CnC-List]

I think the wire groove is not helping any, but in looking at your
pictures, it looked pretty rough.  I think a nice smooth sheave would go a
long ways.

Bill

On Sat, Jan 30, 2021, 7:11 PM Dave S via CnC-List 
wrote:

> Do you believe that very shallow wire groove is wearing my halyard?  I
> find it hard to believe but what do I know...  the sheaves are otherwise in
> good shape since I rebushed them.
>
>
>
>
>
> Sent from my iPhone
>
> On Jan 30, 2021, at 6:28 PM, Bruno Lachance 
> wrote:
>
> 
> Dave,
>
> This place has been recomended many times on this list. I ordered new
> sheaves and pins from them ( mast and boom). Mot cheap but Very please with
> the quality.
>
> Like you, i also experiment wear with similar « hybrid wire rope sheaves »
>
> https://www.zephyrwerks.com/
>
> Bruno Lachance
> Bécassine 33-2
> New-Richmond, Qc
>
>
>
> Téléchargez Outlook pour iOS 
> --
> *De :* Dave S via CnC-List 
> *Envoyé :* Saturday, January 30, 2021 4:54:05 PM
> *À :* C Stus List 
> *Cc :* Dave S 
> *Objet :* Stus-List masthead sheave thoughts?
>
>
> My all-rope main halyard is wearing somewhat after 4 seasons or so, and I
> should probably replace it..
>
> It is often stated that when transitioning from wire/rope to all rope
> halyards, that sheaves must be replaced with an appropriate type,
> presumably without any wire groove.
>
> The main halyard is the widest of all of the 5 lines that pass over these
> sheaves, and is as large an OD as the sheave can accommodate.   It is also
> the most often used, and when at the dock is attached to the end of the
> boom, so it is subject to chafe than the others, even in repose.
>
> Is the wear I'm seeing a result of this shallow groove in the sheave, the
> diameter of the halyard, or is it simply normal wear under the
> circumstances?
>
> If I should replace the sheave, can anyone suggest a source and type?
>
> pics here:
>
>
> https://cncwindstar.blogspot.com/2021/01/new-sheaves.html
>
> Thanks!
>
> Dave 33-2 Windstar.
>
> Thanks to all of the subscribers that contributed to the list to help with
> the costs involved.  If you want to show your support to the list - use
> PayPal to send contribution --   https://www.paypal.me/stumurray  Thanks
> - Stu
Thanks to all of the subscribers that contributed to the list to help with the 
costs involved.  If you want to show your support to the list - use PayPal to 
send contribution --   https://www.paypal.me/stumurray  Thanks - Stu

Stus-List Re: masthead sheave thoughts?

[Graham Collins via CnC-List]

Hi Adam

The masthead on mine is also welded completely, the axles for the 
sheaves come out the sides.  Assuming yours is the same, on the side 
there will be a little stainless plate screwed onto the mast, get an 
impact driver to use to get the screw out and then give the stainless 
plate a twist with some pliers.  It should come out, which will free up 
the sheaves.  My boom is the built the same way.


Graham Collins
Secret Plans
C 35-III #11

On 2021-01-30 6:30 p.m., Adam Hayden via CnC-List wrote:
This is a timely post.  How do you access the sheaves at the top of 
the mast?  My masthead is welded completely.  I have seen other masts 
where the top plate is bolted on.


Adam
C 36
Pictou NS

Thanks to all of the subscribers that contributed to the list to help with the 
costs involved.  If you want to show your support to the list - use PayPal to 
send contribution --   https://www.paypal.me/stumurray  Thanks - Stu
Thanks to all of the subscribers that contributed to the list to help with the 
costs involved.  If you want to show your support to the list - use PayPal to 
send contribution --   https://www.paypal.me/stumurray  Thanks - Stu

Stus-List Re: masthead sheave thoughts?

[ALAN BERGEN via CnC-List]

Get your sheaves from www.zephyrwerks.com. I have one which I removed from
my old mast. It's in very good condition. 3 1/4"d X 1/2" X 1/2" pin
diameter. $35 plus postage.

Alan Bergen
35 Mk III Thirsty
Rose City YC
Portland, OR



On Sat, Jan 30, 2021 at 1:54 PM Dave S via CnC-List 
wrote:

> My all-rope main halyard is wearing somewhat after 4 seasons or so, and I
> should probably replace it..
>
> It is often stated that when transitioning from wire/rope to all rope
> halyards, that sheaves must be replaced with an appropriate type,
> presumably without any wire groove.
>
> The main halyard is the widest of all of the 5 lines that pass over these
> sheaves, and is as large an OD as the sheave can accommodate.   It is also
> the most often used, and when at the dock is attached to the end of the
> boom, so it is subject to chafe than the others, even in repose.
>
> Is the wear I'm seeing a result of this shallow groove in the sheave, the
> diameter of the halyard, or is it simply normal wear under the
> circumstances?
>
> If I should replace the sheave, can anyone suggest a source and type?
>
> pics here:
>
>
> https://cncwindstar.blogspot.com/2021/01/new-sheaves.html
> 
>
> Thanks!
>
> Dave 33-2 Windstar.
> Thanks to all of the subscribers that contributed to the list to help with
> the costs involved.  If you want to show your support to the list - use
> PayPal to send contribution --
> https://urldefense.com/v3/__https://www.paypal.me/stumurray__;!!LIr3w8kk_Xxm!4MC4F4-8EPG_pR0KmbULmSTOni9v0ekCCmcbxFqzA6wQlimEmcjSDanKHjRByRUmFYU$
>  Thanks - Stu
Thanks to all of the subscribers that contributed to the list to help with the 
costs involved.  If you want to show your support to the list - use PayPal to 
send contribution --   https://www.paypal.me/stumurray  Thanks - Stu

Stus-List Re: masthead sheave thoughts?

[Paul Fountain via CnC-List]

Our 33-ll the top lifts off . . .

Paul

From: Adam Hayden via CnC-List 
Sent: Saturday, January 30, 2021 5:30:26 PM
To: Stus-List 
Cc: Adam Hayden 
Subject: Stus-List Re: masthead sheave thoughts?

This is a timely post.  How do you access the sheaves at the top of the mast?  
My masthead is welded completely.  I have seen other masts where the top plate 
is bolted on.

Adam
C 36
Pictou NS
Thanks to all of the subscribers that contributed to the list to help with the 
costs involved.  If you want to show your support to the list - use PayPal to 
send contribution --   https://www.paypal.me/stumurray  Thanks - Stu

Stus-List Re: masthead sheave thoughts?

[Paul Fountain via CnC-List]

Dave,

We had garhauer make new sheaves for Perception. The 2 aft ones were fine with 
their stock offerings, the 3 forward were a tad narrower, and I ended up 
sending them one of our old ones to replicate the sizing. The old ones had 
razor sharp edges from rubbing the mast head casting. Great upgrade took the 
last block friction out of hoisting/lowering sails.

Paul

From: Dave S via CnC-List 
Sent: Saturday, January 30, 2021 4:54:05 PM
To: C Stus List 
Cc: Dave S 
Subject: Stus-List masthead sheave thoughts?


My all-rope main halyard is wearing somewhat after 4 seasons or so, and I 
should probably replace it..

It is often stated that when transitioning from wire/rope to all rope halyards, 
that sheaves must be replaced with an appropriate type, presumably without any 
wire groove.

The main halyard is the widest of all of the 5 lines that pass over these 
sheaves, and is as large an OD as the sheave can accommodate.   It is also the 
most often used, and when at the dock is attached to the end of the boom, so it 
is subject to chafe than the others, even in repose.

Is the wear I'm seeing a result of this shallow groove in the sheave, the 
diameter of the halyard, or is it simply normal wear under the circumstances?

If I should replace the sheave, can anyone suggest a source and type?

pics here:


https://cncwindstar.blogspot.com/2021/01/new-sheaves.html

Thanks!

Dave 33-2 Windstar.
Thanks to all of the subscribers that contributed to the list to help with the 
costs involved.  If you want to show your support to the list - use PayPal to 
send contribution --   https://www.paypal.me/stumurray  Thanks - Stu

Stus-List Re: masthead sheave thoughts?

[Dave S via CnC-List]

Do you believe that very shallow wire groove is wearing my halyard?  I find it 
hard to believe but what do I know...  the sheaves are otherwise in good shape 
since I rebushed them. 





Sent from my iPhone

> On Jan 30, 2021, at 6:28 PM, Bruno Lachance  
> wrote:
> 
> 
> Dave,
> 
> This place has been recomended many times on this list. I ordered new sheaves 
> and pins from them ( mast and boom). Mot cheap but Very please with the 
> quality.
> 
> Like you, i also experiment wear with similar « hybrid wire rope sheaves »
> 
> https://www.zephyrwerks.com/
> 
> Bruno Lachance
> Bécassine 33-2
> New-Richmond, Qc
> 
> 
> 
> Téléchargez Outlook pour iOS
> De : Dave S via CnC-List 
> Envoyé : Saturday, January 30, 2021 4:54:05 PM
> À : C Stus List 
> Cc : Dave S 
> Objet : Stus-List masthead sheave thoughts?
>  
> My all-rope main halyard is wearing somewhat after 4 seasons or so, and I 
> should probably replace it..   
> 
> It is often stated that when transitioning from wire/rope to all rope 
> halyards, that sheaves must be replaced with an appropriate type, presumably 
> without any wire groove.  
> 
> The main halyard is the widest of all of the 5 lines that pass over these 
> sheaves, and is as large an OD as the sheave can accommodate.   It is also 
> the most often used, and when at the dock is attached to the end of the boom, 
> so it is subject to chafe than the others, even in repose.
> 
> Is the wear I'm seeing a result of this shallow groove in the sheave, the 
> diameter of the halyard, or is it simply normal wear under the circumstances? 
> 
> If I should replace the sheave, can anyone suggest a source and type?
> 
> pics here:
> 
> 
> 
> https://cncwindstar.blogspot.com/2021/01/new-sheaves.html
> 
> Thanks! 
> 
> Dave 33-2 Windstar.
Thanks to all of the subscribers that contributed to the list to help with the 
costs involved.  If you want to show your support to the list - use PayPal to 
send contribution --   https://www.paypal.me/stumurray  Thanks - Stu

Stus-List Re: masthead sheave thoughts?

[Bruno Lachance via CnC-List]

Dave,

This place has been recomended many times on this list. I ordered new sheaves 
and pins from them ( mast and boom). Mot cheap but Very please with the quality.

Like you, i also experiment wear with similar « hybrid wire rope sheaves »

https://www.zephyrwerks.com/

Bruno Lachance
Bécassine 33-2
New-Richmond, Qc



Téléchargez Outlook pour iOS

De : Dave S via CnC-List 
Envoyé : Saturday, January 30, 2021 4:54:05 PM
À : C Stus List 
Cc : Dave S 
Objet : Stus-List masthead sheave thoughts?


My all-rope main halyard is wearing somewhat after 4 seasons or so, and I 
should probably replace it..

It is often stated that when transitioning from wire/rope to all rope halyards, 
that sheaves must be replaced with an appropriate type, presumably without any 
wire groove.

The main halyard is the widest of all of the 5 lines that pass over these 
sheaves, and is as large an OD as the sheave can accommodate.   It is also the 
most often used, and when at the dock is attached to the end of the boom, so it 
is subject to chafe than the others, even in repose.

Is the wear I'm seeing a result of this shallow groove in the sheave, the 
diameter of the halyard, or is it simply normal wear under the circumstances?

If I should replace the sheave, can anyone suggest a source and type?

pics here:


https://cncwindstar.blogspot.com/2021/01/new-sheaves.html

Thanks!

Dave 33-2 Windstar.
Thanks to all of the subscribers that contributed to the list to help with the 
costs involved.  If you want to show your support to the list - use PayPal to 
send contribution --   https://www.paypal.me/stumurray  Thanks - Stu

Stus-List Re: masthead sheave thoughts?

[Sam Salter via CnC-List]

Yeah, my sheave box was bolted on!

sam 
C$C 26  Liquorice 
Ghost Lake  Alberta 


On Jan 30, 2021, at 3:30 PM, Adam Hayden via CnC-List  
wrote:


This is a timely post.  How do you access the sheaves at the top of the mast?  
My masthead is welded completely.  I have seen other masts where the top plate 
is bolted on.

Adam
C 36
Pictou NS
Thanks to all of the subscribers that contributed to the list to help with the 
costs involved.  If you want to show your support to the list - use PayPal to 
send contribution --   https://www.paypal.me/stumurray  Thanks - StuThanks to all of the subscribers that contributed to the list to help with the 
costs involved.  If you want to show your support to the list - use PayPal to 
send contribution --   https://www.paypal.me/stumurray  Thanks - Stu

Stus-List Re: masthead sheave thoughts?

[Dave S via CnC-List]

Sorry, a different situation, Mine's a breeze... unbolt the top and lift
out the entire axle, each end of which simply sits captive in a groove on
either side of the mast.
Dave 33-2 (non-foiling)

On Sat, 30 Jan 2021 at 17:30, Adam Hayden via CnC-List <
cnc-list@cnc-list.com> wrote:

> This is a timely post.  How do you access the sheaves at the top of the
> mast?  My masthead is welded completely.  I have seen other masts where the
> top plate is bolted on.
>
> Adam
> C 36
> Pictou NS
> Thanks to all of the subscribers that contributed to the list to help with
> the costs involved.  If you want to show your support to the list - use
> PayPal to send contribution --   https://www.paypal.me/stumurray  Thanks
> - Stu
Thanks to all of the subscribers that contributed to the list to help with the 
costs involved.  If you want to show your support to the list - use PayPal to 
send contribution --   https://www.paypal.me/stumurray  Thanks - Stu

Stus-List Re: masthead sheave thoughts?

[Adam Hayden via CnC-List]

This is a timely post.  How do you access the sheaves at the top of the mast?  
My masthead is welded completely.  I have seen other masts where the top plate 
is bolted on.

Adam
C 36
Pictou NS
Thanks to all of the subscribers that contributed to the list to help with the 
costs involved.  If you want to show your support to the list - use PayPal to 
send contribution --   https://www.paypal.me/stumurray  Thanks - Stu

Stus-List Re: masthead sheave thoughts?

[Sam Salter via CnC-List]

I replaced my Rope/wire halyards with all rope about 12 or 13 years ago. But I 
also replaced the masthead sheaves:
https://www.zephyrwerks.com/

I haven’t noticed any significant wear on the halyards.
When I replaced the sheaves I also rebuilt the sheave box at the top of the 
mast. There were some metal partitions in there that had worn razor sharp in 
the previous 30 years. So it might be your wire groove or your sheave box or 
both!

sam 
C 26  Liquorice 
Ghost Lake  Alberta 


On Jan 30, 2021, at 2:54 PM, Dave S via CnC-List  wrote:


My all-rope main halyard is wearing somewhat after 4 seasons or so, and I 
should probably replace it..   

It is often stated that when transitioning from wire/rope to all rope halyards, 
that sheaves must be replaced with an appropriate type, presumably without any 
wire groove.  

The main halyard is the widest of all of the 5 lines that pass over these 
sheaves, and is as large an OD as the sheave can accommodate.   It is also the 
most often used, and when at the dock is attached to the end of the boom, so it 
is subject to chafe than the others, even in repose.

Is the wear I'm seeing a result of this shallow groove in the sheave, the 
diameter of the halyard, or is it simply normal wear under the circumstances? 

If I should replace the sheave, can anyone suggest a source and type?

pics here:



https://cncwindstar.blogspot.com/2021/01/new-sheaves.html

Thanks! 

Dave 33-2 Windstar.

Thanks to all of the subscribers that contributed to the list to help with the 
costs involved.  If you want to show your support to the list - use PayPal to 
send contribution --   https://www.paypal.me/stumurray  Thanks - StuThanks to all of the subscribers that contributed to the list to help with the 
costs involved.  If you want to show your support to the list - use PayPal to 
send contribution --   https://www.paypal.me/stumurray  Thanks - Stu

Stus-List Re: masthead sheave thoughts?

[Bob Mann via CnC-List]

I was able to replace my jib masthead sheaves by sending them to Garhauer in 
California.  They made new ones and shipped  them out. Perfect fit.  I still 
have wire-to-rope for my main halyard.  That'll be next, as soon as I figure 
out how to change the exit block at the mast base.

Bob Mann

> On 01/30/2021 4:54 PM Dave S via CnC-List  wrote:
>  
>  
> 
> My all-rope main halyard is wearing somewhat after 4 seasons or so, and I 
> should probably replace it..   
> 
> It is often stated that when transitioning from wire/rope to all rope 
> halyards, that sheaves must be replaced with an appropriate type, presumably 
> without any wire groove.  
> 
> The main halyard is the widest of all of the 5 lines that pass over these 
> sheaves, and is as large an OD as the sheave can accommodate.   It is also 
> the most often used, and when at the dock is attached to the end of the boom, 
> so it is subject to chafe than the others, even in repose.
> 
> Is the wear I'm seeing a result of this shallow groove in the sheave, the 
> diameter of the halyard, or is it simply normal wear under the circumstances? 
> 
> If I should replace the sheave, can anyone suggest a source and type?  
> 
> pics here:
> 
>  
> 
> https://cncwindstar.blogspot.com/2021/01/new-sheaves.html
> 
> Thanks! 
> 
> Dave 33-2 Windstar.
> 
> Thanks to all of the subscribers that contributed to the list to help 
> with the costs involved. If you want to show your support to the list - use 
> PayPal to send contribution -- https://www.paypal.me/stumurray Thanks - Stu
> 
Thanks to all of the subscribers that contributed to the list to help with the 
costs involved.  If you want to show your support to the list - use PayPal to 
send contribution --   https://www.paypal.me/stumurray  Thanks - Stu