Tips on finding leaking damper

Farrell mfarrel2@tampabay.rr.com
Sat, 8 Feb 2003 20:43:29 -0500


Thanks Roger. The felt is flat. I did check alignment/tipping, and it looks real good. The damper head was slightly loose and turned a bit (rotated), so I tightened it a bit and straightened it. So perhaps it had been like that for a while, not seating well, and also establishing new/improper string marks. If it doesn't sound good when I go there in a couple weeks, I'll likely just replace it. They promised me all the pizza I can eat if I can fix it!

Terry Farrell
  
----- Original Message ----- 
From: "Roger Jolly" <roger.j@sasktel.net>
To: "Pianotech" <pianotech@ptg.org>
Sent: Saturday, February 08, 2003 11:14 AM
Subject: Re: Tips on finding leaking damper


> 
> Hi Terry,
>                  Another test,  depress the pedal and check that the 
> offending damper is perfectly in line with it's neighbors.   The should 
> include head tilt.  It's easy to get fooled.  The top of the damper hits 
> the strings just like it's neighbors, but the lower part of the damper is 
> hardly seating on the strings.
> The adjustment is best done first in an action cradle with the damper lift 
> rod propped open.  Eye ball both the tips and tails of the damper 
> heads.  If memory serves me, that's a flat damper?
> If this is done and the problem is still there, loosen the head screw and 
> lower the damper on the wire about 1mm. The damper may be touching a node 
> point.  ( But I doubt it) Not noticed this problem on P22's.
> Regards Roger
> 
> 
> At 07:42 AM 2/8/2003 -0500, you wrote:
> >OK. Now I have a leaking damper problem (middle C). Nice little Yamy P22. 
> >I've checked all the things below, everything seems A-OK (except the 
> >ringing of course). I fluffed up the felt a bit with a needle as a last 
> >resort - changed it a little, but no real improvement. I told the owner if 
> >it did not quiet down in a week or two on its own, we will change the felt 
> >on the offending damper when we tune the piano in a week or two. Does that 
> >sound like the best approach?
> >
> >Terry Farrell
> >
> >----- Original Message -----
> >From: "Phil Ryan" <pryan2@the-beach.net>
> >To: "Pianotech" <pianotech@ptg.org>
> >Sent: Saturday, February 08, 2003 6:12 AM
> >Subject: Re: Tips on finding leaking damper
> >
> >
> >Thanks to all who responded to my post on leaking dampers.  The responses 
> >I received were very helpful and solved the problem.  I thought I would 
> >compile  them here for anyone who missed the original post.  Good Luck
> >
> >Phil
> >
> >1. Check the pedal rods that they are not too tight.
> >2. Check that the dampers move(follow) when you push on strings.
> >3. Pluck each string to check for ringing.
> >4. Check condition of damper springs.
> >5. Check that the action brackets are tight against the plate bolts.
> >6. Dampen the strings with finger or mute to find offending damper(s).
> >7. Check seating of action feet on action bracket.
> >8. Check seating of bottom portion  of damper felt on bichord strings.
> >
> >_______________________________________________
> >pianotech list info: https://www.moypiano.com/resources/#archives
> 
> 
> _______________________________________________
> pianotech list info: https://www.moypiano.com/resources/#archives

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