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Lewmar blocks

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AndyS View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote AndyS Quote  Post ReplyReply Direct Link To This Post Topic: Lewmar blocks
    Posted: 30 January 2017 at 14:52
I was wondering if anyone has replaced the standard Lewmar mainsheet blocks with anything better. They do not strike me as particularly smooth, and was curious about whether a more high tech block would add any performance. I did replace the Lewmar blocks on the self-tacking job with Harken ESP blocks and that is definitely a nice upgrade. 
Andy
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Doug View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Doug Quote  Post ReplyReply Direct Link To This Post Posted: 30 January 2017 at 15:42
Yes, I've replaced all of my Lewmar blocks, and my traveler, with Garhauer. Superior quality to Harken,less expensive than Harken and longer lasting.
"Red Sky" 2008 Hanse 370, #465, Doug Anderson, Deltaville, VA, USA
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chrgra View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote chrgra Quote  Post ReplyReply Direct Link To This Post Posted: 30 January 2017 at 18:54
Oeps wrong topic.....
Ive replaced the cams for the jib halyard and the main halyard under guarantee (smaller diameter)

With the mainsheet I did not have any problem.

Regards Chris



Edited by chrgra - 02 February 2017 at 01:49
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StavrosNZ View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote StavrosNZ Quote  Post ReplyReply Direct Link To This Post Posted: 02 February 2017 at 01:08
I have replaced all of my Lewmar Syncro blocks with Lewmar HTX, the new HTX product has aluminum side cheeks, plain bearing on main shaft for high static loads and ball bearings on side of sheaves for side loads. They are an excellent product built to last (unlike the Syncro block).

I have upgraded mast base blocks from 60mm with 6mm shackle to 72mm web series blocks and connected them to the mast base with dyneema loops.

I twisted the arm of the local Lewmar agent over crap Syncro product and got them to do amazing deal on replacements. These are considerably chaepaer then Harken and much sportier and lighter than Garhauer.


Stephen
2010 H400 #691, Auckland, New Zealand
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AndyS View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote AndyS Quote  Post ReplyReply Direct Link To This Post Posted: 02 February 2017 at 02:27
Did you go with the 72mm HTX, or a different size?
Andy
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StavrosNZ View Drop Down
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Post Options Post Options   Thanks (1) Thanks(1)   Quote StavrosNZ Quote  Post ReplyReply Direct Link To This Post Posted: 02 February 2017 at 02:34
72mm HTX single with shackle and swivel head for main
72mm HTX web block with dyneema loops at mast base
60mm HTX for furler turning block (in anchor locker under deck furling)
60mm HTX single plus 50mm HTX tripple and double for continuous vang
50mm HTX fiddle and fiddle with becket jam cleat for backstay.

72mm HTX has safe working load of 2,000kg, shackles are 10mm pins, 60mm has safe working load of 1,100kg, shackles are 6mm pins.

I would much rather be up the mast on 12mm dyneema halyard on 72mm block with 10mm pin than 60mm block with 6mm pin any day...............
Stephen
2010 H400 #691, Auckland, New Zealand
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StavrosNZ View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote StavrosNZ Quote  Post ReplyReply Direct Link To This Post Posted: 02 February 2017 at 02:39
watching the commissioning of new 415 this morning, 60mm Selden blocks with 6mm shackles as mast base blocks..........under spec'd sorry Hanse, do the calcs on 44 or 46 ratio winch with 250mm lever.
Stephen
2010 H400 #691, Auckland, New Zealand
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AndyS View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote AndyS Quote  Post ReplyReply Direct Link To This Post Posted: 02 February 2017 at 02:57
I will be in Annapolis at the end of the month and will check out the various blocks. Was it hard to swap out the blocks at the mast base? Seems like it could be a hassle, and sounds like using Dyneema loops was a good idea. I definitely think the synchro blocks are substandard and want to upgrade. Any other suggestions out there?
Andy
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AndyS View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote AndyS Quote  Post ReplyReply Direct Link To This Post Posted: 03 March 2017 at 20:07
Stavros et al:
I bought one of the 72mm Lewmar HTX blocks to look at, along with a 75mm Harken ESP block. Both blocks are fairly similar although the Lewmar has a higher safe working load, and the Harken seems to have better bearings and run a little smoother. I was wondering if anyone has splurged on the Black Magic blocks from Harken (which have a very high working load) and if they are worth it? They are considerably more expensive, and probably overkill. Of course every sheeting system is only as strong as the weakest link, and the Spinlock clutches would seem to me to fail before any of this stuff. I also would like to see how Stavros connected the 72mm HTX blocks to the mast base with Dyneema. Any pictures? Obviously you couldn't feed the Dyneema loops through the 6mm opening of the pins, or could you? Appreciate any other thoughts - want to replace all of this one time and make the right decision. And like most sailors, I love obsessing over this kind of stuff!!!

Andy
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Niels View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Niels Quote  Post ReplyReply Direct Link To This Post Posted: 03 March 2017 at 21:35
Replaced Lewmar with Smaler Black Magic expensive but great less friction very happy with them
Niels
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