Author Topic: Bronze pulley block  (Read 1662 times)

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Bronze pulley block
« on: April 07, 2014, 08:42:32 AM »
Adrian Swenson
   
Posted on Friday, January 18, 2008 - 09:33 pm:      
Continuing to refurbish WB100. Re the starboard bronze pulley block fitted to the cabin roof At some time one of the 3 white pulleys has siezed but a previous owner obviously never noticed because it was continued to be used and the line has nearly worn away one side of the pulley. What to do as the pulleys do not seem to be replacable. Any advice dear friends?

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Re: Bronze pulley block
« Reply #1 on: April 07, 2014, 08:43:36 AM »

Julian Swindell
Username: Julian_swindell

Registered: 03-2007
   
Posted on Saturday, January 19, 2008 - 06:00 pm:      
Hi Adrian,
The pulleys on my boat are very conventional plastic/steel affairs. They should be easily replaced. Are your blocks solid bronze?

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Re: Bronze pulley block
« Reply #2 on: April 07, 2014, 08:43:52 AM »
Adrian
   
Posted on Tuesday, January 22, 2008 - 08:38 pm:      
Sure are, bronze block with 3 pulleys x 2. The axle for the pulleys appears to be welded at the ends into the block. Yours look as if the do the job. I don't know if mine are a 1 off as WB 100 was built for a London Boat Show.

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Re: Bronze pulley block
« Reply #3 on: April 07, 2014, 08:44:07 AM »
Phil Shimmin
Username: Philshimmin

Registered: 11-2010
   
Posted on Monday, November 29, 2010 - 03:13 am:      
The centre pins of the solid blocks on WB100,can be simply driven out,and the sheaves replaced with new ones.I actually made new pins for both blocks, faired the ends, repolished and lacquered the block..looks fine.

Ken

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Re: Bronze pulley block
« Reply #4 on: January 14, 2019, 01:53:35 PM »
Hi Phil (and anyone else who's replaced sheaves in the bronze block)
I'm about to change my sheaves and am wondering how much driving is needed to shift the pins. In particular is it ok to knock them out in situ on the boat or does the block need to be taken to my workbench ?

Rick

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Re: Bronze pulley block
« Reply #5 on: January 15, 2019, 06:17:54 AM »
Just read your post on the website..No wonder I cant quite remember ..its 9 years ago!.....you could try and tap one out and see if it moves...I may have drilled thro to weaken the pin before drfting it out.  Best do it on the bench and rebed with a squirt of sikoflex sealant.  At 75 the old memory has been damaged by years of Rum drinking. Rgds Phil

On Mon, Jan 14, 2019 at 11:16 PM phil shimmin wrote:

    Hi, are you referring to the sheaves on the cabin top front?  When I renewed all the nylons, I removed the bronzes, polished them up and lacquered them, before fitting the new sheaves in the workshop vice.  I cant really remember how tight the pins were.... and if I " tapped over" the pin ends a bit.  I remember thinking at the time that the whole arrangement was rather sticky for them to revolve.They had previously been a bit solid and worn down unevenly. Hope this helps..I may have a few spares. Rgds Phil.

(sent by email by error, so reposted by admin)

Ken

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Re: Bronze pulley block
« Reply #6 on: January 15, 2019, 12:42:55 PM »
 :D I'm impressed !  Post a Q one day and get a same day response.

Thanks Rick and Phil !

. and yes it is the two sets of three on the roof front I'm replacing.
I just started loosening the nuts when I thought - the fixing is fairly solid so maybe the pins would drive out on the boat but only having done that job on mild steel I thought I'd ask the experts about how easy or otherwise bronze was to shift so thanks again both for your inputs.

And, Phil, if you find any spares you're happy to see getting used do let me know.


Ken