[pianotech] Noisy dampers

[Joe Goss]

Hi Chuck,
Old upright, could be hard felt or moisture damage. Rust.
One can sometimes gently fluff up the damper with pliers
and get the crud off with very light stroking of the contact surface with 
220 or lighter sand paper. But be prepared to replace the felt just in case.
Joe Goss BSMusEd MMusEd RPT
imatunr at srvinet.com
www.mothergoosetools.com
----- Original Message ----- 
From: "William Truitt" <surfdog at metrocast.net>
To: <pianotech at ptg.org>
Sent: Monday, August 03, 2009 3:02 PM
Subject: Re: [pianotech] Noisy dampers


> Hi Chuck:
>
> Sounds like hard damper felt.  Replace it and adjust.  Best to do the 
> whole
> set.
>
> Will Truitt
>
> -----Original Message-----
> From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On 
> Behalf
> Of Chuck Raynor
> Sent: Monday, August 03, 2009 2:37 PM
> To: pianotech at ptg.org
> Subject: [pianotech] Noisy dampers
>
> Hi group,
> I'm working on a Kimball baby grand with noisy damper felts.  No noise
> upon depressing the damper pedal or any individual key, but a "rattling"
> or "buzzing" noise upon release in the monochord and bichord area.
> Trichords are all fine.  Removing the action and manually lifting the
> damper heads produces the same noise.  It's not a ringing damper--it's
> very abrupt--just a metallic "clunk" upon the damper's return.
> I'd welcome any suggestions on how to further diagnose or cure these
> little beasts.
> Thanks,
> Chuck Raynor
> Raynor Piano Service
> Beaufort, SC
>
>