[alberg30] Re: Lots of questions

[J.Sousa]

From: "J.Sousa" <jsss at net1plus.com>

Bryan,

We replaced the sheave on #114 with one from a Maxi Yacht (Marine
consignment= great products at half the cost).  The diameter was the same
and although we had to file the slot about .25 inch wider, it works better
then we could have ever hoped.  The dual-sheave idea sounds good also,
although I have one question:  Since the upper-shrouds attach to the bolt
that holds the sheave, did you keep that arrangment, or manufacture
something else?  It seems as though this bolt would get in the way if there
were two sheaves in that space.

Fair Winds,

Chris Sousa
#114
Carina Vela

Bryan Marshall wrote:

> From: Bryan Marshall <bryan_marshall at bigfoot.com>
>
> I can answer question #3. Don't bother trying to get a new 6 " sheave...
> they are available, but are designed for big boats. The easier solution
> is to use 2 smaller sheaves sandwiched between 2 aluminum plates that
> have their width the same as the fore-aft cross section length. Set one
> at the rear and one at the front so the halyard comes in between the
> plates, over one sheave to the other sheave, and back out again. Use
> good ball bearing sheaves such as Harken. The point is to make a unit
> that replaces the old sheave with 2 new ones. It may be necessary to
> widen the slot where the old sheave was to accomodate the new unit.
>
> Also, if you haven't already done so, replace your halyard with low
> stretch rope. If this brief description is not adequate, feel free to
> contact me for a better explanation.
>
>     Bryan
>
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