thumping dampers

[Mark Wisner]

That is my conclusion, too.  I've reduced the damper pedal thump on Yamaha grands by removing leads from the damper levers.  I'm not sure about doing this on a GA-1, though.
  
Mark Wisner

-----Original Message-----
>From: antares <antares@euronet.nl>
>Sent: Jan 12, 2006 9:16 AM
>To: An open list for piano technicians <pianotech@ptg.org>
>Subject: Re: thumping dampers
>
>
>Hi,
>
>I recently visited a customer with a Yamaha C2, who has the very same  
>complaint.
>The thump is not normal, and I have not yet encountered this with any  
>Yamaha grand.
>I have examined it, and have come to the conclusion that the Yamaha  
>damper felt is not too hard. It usually is of very good quality anyway.
>I think there is too much lead in the damper levers.
>All the damper levers, combined with the amount of weight from the  
>lead, gives the heavy thump.
>
>My two funny money cents
>
>On 12-jan-2006, at 7:25, William R. Monroe wrote:
>
>> Well, Rick,
>>
>> I must say I would be inclined to concur with the pedal being  
>> excessively
>> "thumpy."  I just serviced a Yamaha C1 today.  The thump of the  
>> dampers was
>> really quite bothersome.  No amount of limiting the damper travel  
>> would do
>> anything here.  The felts are in quite good condition, but are a  
>> bit firmer
>> than I usually see.
>>
>> My gut is that to make the thumping end, you'll need new  
>> (different) damper
>> felts.  In my case, it is definitely the damper felts creating the  
>> noise,
>> but I would check to see what kind of shape the felts in the pedal  
>> box are
>> in and how absorbent they are.  I often find poor felts in the  
>> pedal box can
>> contribute to that thumping noise.
>>
>> Hope you are able to remedy the problem.
>>
>> Regards,
>> William R. Monroe
>
>friendly greetings
>from
>André Oorebeek
>
>R. Vinkeleskade 1-3hg
>1071 SN Amsterdam
>The Netherlands
>
>tel/fax : 0031-20-6237357
>gsm   :  0031-645-492389
>
>www.concertpianoservice.nl
>
>
>?
>and the stories I hear!
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