[pianotech] Brass rail

[Terry Farrell]

FWIW, when I rebuilt the action on my Mason & Hamlin I used new  
hammers, shanks and butts (Asian-type, with the cord). I rebuilt the  
wippens because I couldn't find a suitable replacement (new felt,  
leather, bushings, pins and jacks). And yes, it got new jack  
springs......

Terry Farrell

On May 27, 2010, at 3:39 PM, John Delacour wrote:

> At 00:44 +0000 27/5/10, Barb Nobbe wrote:
>
>> ...But, what about the jack springs?  I thought that the jack  
>> springs for the Asian style were stronger than the American/ 
>> European style.  Or maybe I'm just imagining I heard something of  
>> the sorts. Anyway, should I worry about replacing those too?
>
> Almost certainly not.  They work over a tiny range and usually last  
> forever unless they have been strained by careless handling.
>
> JD
>
>