1879 Steinway A

[Farrell]

Hey Richard,

You certainly know what the effects of altering geometry are. I can't
imagine that you could move the knuckle out 3.5 mm and not change the
geometry. Did the original work well? Is the new setup better or worse? Are
there other flanges available that would work better? Can you move the
hammer flange rail (or were Steinways "totally tubular, man" even back
then)? Even if you can manage to position the jack properly with the knuckle
core, does the jack align (orientation) well with the knuckle core?

Basically, I think what the piano needs is a new soundboard.

Terry Farrell

www.farrellpiano.com


> Hey folks
>
> Am just getting started changing a set of hammers and shanks on this old
> A.  The new shanks place the shank center pin about 2 mm further away
> from the hammer rail. This pushes the knuckles just a bit farther back
> then I would like, and will force me to go through all whippens and
> remove a bit of the jack return cushion in order to regulate the jacks.
> The origional whippens are going to remain and there is no regulating
> button for this position on those for those of you that arent familiar
> with this older type of Steinway action. The origional centerpin to
> knuckle was 15.5. So with the new shanks at 17, and the center itself
> out about 2 mm... the knuckle itself is out about 3.5 mm more.  The jack
> to knuckle position with the origional shanks and knuckles has the jack
> well under the knuckle and past the back end of the core... so there is
> room to make the adjustment to get a good position with the new shanks.
>
> I'm looking for suggestions and thoughts as to what to do here. I could
> go through and change all flanges so as to use the origionals I
> suppose.. I checked one and the jack ended up just perfect under the
> knuckle... but then I have to change all the flanges on the new set.
>
> so whadaya whadaya ?
>
> RicB
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