Terry,
This action might be giving these results because of corroded spoons. I
know it sounds like a wacky suggestion, but it is not all that uncommon. The
wide swing in down weight could be 'unregulated' damper springs of course,
and after reducing the tension, if the resistence is still high, you will
know where to look!
The plating on the spoons reacts with the felt I guess, and they get a
nasty oxadation, which causes a rough surface, and gobbs of friction. The
spoons get so rough, they dig into the felt, and make a hole.
Happy hunting
Dan
on 8/7/01 8:30 PM, Farrell at mfarrel2@tampabay.rr.com wrote:
> I tuned a 1970s Everett Studio the other day. With sustain pedal depressed,
> DownWeight was around 50 to 55 grams. Without depressing the sustain pedal,
> the touchweight skyrocketed to about 95 grams. Clearly this is toooo
> "heavy". Are there any guidelines for both verticals and grands for how much
> downweight the dampers should add??? Thanks.
>
> Terry Farrell
>
>
This PTG archive page provided courtesy of Moy Piano Service, LLC