[C38] Binding Halyards/Masthead

joe launie jlaunie at cox.net
Thu Jul 24 02:26:15 EDT 2008 

Tom T. wrote:
> Hi Russ,
>
> "Nothing difficult is ever easy"
>
> The covers just cover the ends of the sheave pins keeping them from falling
> out.  I found some old pictures I took and there are two covers, one for
> each sheave pin.  Be prepared to have some choice words for the retainer
> screws as they will probably be corroded to the mast.  I sprayed with PB
> Blaster before I attempted to remove them.  Later, I replaced the screws
> with Allen head stainless screws making removal later easier.  I also
> coated the new screws with waterproof grease.
>
> You can see inside the crane by looking in from the ends but that's about
> it.
>
> If you rig another climbing rope at the crane so you can climb without
> using a halyard, you will be able to remove the divider plates from the
> crane as well as both sheaves but just remember to solidly secure the
> sheaves with small line or wire otherwise you will lose them down the mast
> when you remove the sheave pins.  Without removing the halyards first, it's
> almost impossible to remove either sheave without dropping it down the mast.
>
> As you can see from the photos, my divider plate was worn from corrosion
> and lack of lubrication between the sheaves and divider.  That is why it is
> good to also remove the divider plate because you will want to dress it
> with a wire brush and grease it before you reassemble everything.
>
> Hope this helps.
> Tom Troncalli
>
>
>
>
>   
>> [Original Message]
>> From: Russ and Karleen Duff <avantura at comcast.net>
>> To: Catalina 38 Listserve <listserve at catalina38.org>
>> Date: 7/5/2008 12:39:28 PM
>> Subject: Re: [C38] Binding Halyards/Masthead
>>
>> So there is a cover that comes off easily so that you can see inside?
>>
>> Russ and Karleen Duff
>>
>> -----Original Message-----
>> From: listserve-bounces at catalina38.org
>> [mailto:listserve-bounces at catalina38.org] On Behalf Of Kerry Grimes
>> Sent: Saturday, July 05, 2008 2:50 AM
>> To: Catalina 38 Listserve
>> Subject: Re: [C38] Binding Halyards/Masthead
>>
>> Russ
>>
>> I've had mine apart before and it really isn't that difficult, until 
>> your 50 feet in the air hanging from a rope. I find it hard to believe 
>> that the halyard came off track so that leaves the sheave stuck or 
>> gummed up. To take it apart you will need a Phillips screwdriver to 
>> remove the cover and a hammer and drift to remove the pin. The pin is 
>> approximately 5/8 or larger diameter (its been 5 years). As you slowly 
>> remove the pin you can pull each sheave as they become loose from the 
>> pin. There is a piece of aluminum between each sheave to prevent the 
>> line from crossing over. I myself would not take it apart. I would soak 
>> the sheave bearing and shaft in WD40 and then spin the sheaves while 
>> spraying it in more WD40 until the sheaves are once again loose and 
>> spinning freely. This will clean them out. Then clean the WD40 away with 
>> water. The sheaves have a bronze self lubricating bearing in them and 
>> only require the occasional cleaning. I don't know what the WD40 will do 
>> to your line so try to keep it away from them. I've used the WD40 in 
>> this manner in the past because it is water soluble or will dry on its 
>> own in a couple of days. If you try to lubricate the bearing back into 
>> life the lubricant stays at the sheave attracting every piece of dust 
>> into the bearing causing it to gum up quickly. The WD40 cleans out the 
>> dirt and gum then when its washed away there is nothing to attract the 
>> dirt or gum back into the sheave bearing.
>>
>> What ever you do, good luck
>> If you drop parts into the mast Lefell still has all the parts you need.
>>
>> Kerry Grimes
>> Littlebreeze
>> San Francisco
>>
>>
>>
>> Russ and Karleen Duff wrote:
>>     
>>> I finally got the motor put back together and running, and now I have 
>>> a problem with my main and jib halyards; they are both badly binding. 
>>> I have no idea what could be causing this except that either the 
>>> halyard sheaves are frozen, or maybe one, or both, of the lines have 
>>> come off-track (they were fine at haul out at the end of the season). 
>>> I am planning to go up the mast tomorrow to inspect things and hope 
>>> for an easy fix. If it isn't, and I need to dig deeper inside, how 
>>> does the masthead come off? Can it be removed with the mast up? I 
>>> wouldn't think so because aren't the fore and aft stays connected to 
>>> it? If it can't come off, is there any way to access the sheaves while 
>>> it is on? This s_cks, I finally get the motor fixed, and now it's 
>>> something else (I guess that's what you get with a 27 year old boat). 
>>> Any advice would be appreciated.
>>>
>>> Sincerely,
>>> *Russ Duff*
>>> Catalina 38, Hull #112
>>> "AVANTURA"
>>> Lake Erie
>>> Grosse Ile, Michigan
>>>
>>> AVANTURA */AT /*COMCAST */DOT /*NET
>>>
>>>  
>>>   
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>>>
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>>>   
>>>       
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> 10:15 AM
>   
>
>   
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>   
Tom,
    The produt you should use any time you put strainless screws into 
aluminum is lumilastic. It is a coating that prevent electrolisis. Joe 
Launie, Macavity
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