Pianotech

  • 1.  Poor sound from g#6 up

    Registered Piano Technician
    Posted 01-15-2021 09:46

    Greetings all,
    I just went to tune a Yamaha M23 from 1984 which exhibited a problem which, as usual, bothers only me. The customer, a beginner, said she had really wanted an Everett she had seen in a shop (I think only from name recognition, go figure...) but this had been cheaper from private sale. I looked up the serial number and said "congratulations-you still got an Everett!"

    The piano was in nice condition, but I noticed that as soon as I hit G#6, there was more of a thunk with no sustain. None of the notes above had any sustain either. There was no visible discontinuity in the hammer line, and I didn't observe any other obvious faults, such as bridge separation. No reason to be new hammers, which were grooved as one would expect for this age. C8 had no real pitch.

    My gut feeling is that the hammer line is too high-is that the likely cause? Is bending the post a viable fix?

    thanks!



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    Scott Cole, RPT
    rvpianotuner.com
    Talent, OR
    (541-601-9033
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  • 2.  RE: Poor sound from g#6 up

    Posted 01-15-2021 10:01
    yeah...that will be an upright strike point thing.

    There's more pitch to be had. Realign the stack by hook or by crook, but be aware, too much movement will misalign hammers. This kind of production badness will reflect other problems usually, so in making the move, be prepared for other collateral damage. She didn't sound up to spend any money, so this all gets complicated financially, but the bottom line is that the hammers were generically hung, and the stack is not end up where the generic length of the shank was supposed to end up.

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    Jim Ialeggio
    grandpianosolutions.com
    Shirley, MA
    978 425-9026
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  • 3.  RE: Poor sound from g#6 up

    Registered Piano Technician
    Posted 01-15-2021 11:09

    Scott,

    Coincidentally, I just encounter the same problem on a Baldwin (circa 1995) console. The problem began at the upper side of the treble break. What I discovered; the bridge cap had come unglued from the body of the bridge.  The first two notes (those next to the end of the bridge cutout) produced a thud and as you moved up the scale the problem diminished but was recognizable as far an octave above.
    Roger



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    Roger Gable
    Gable Piano
    Everett WA
    425-252-5000
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  • 4.  RE: Poor sound from g#6 up

    Registered Piano Technician
    Posted 01-15-2021 12:58
    Scott

    I have a feeling that the bridge is sperated from the soundbaord. It might not be visible from the top with the action in the piano. But you might be able to see it if you remove the action and look at the bottom edge of the bridge. It might not be worth fixing, though.

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    Willem "Wim" Blees, RPT
    Mililani, HI 96789
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  • 5.  RE: Poor sound from g#6 up

    Registered Piano Technician
    Posted 01-16-2021 10:29
    You may have done this, Scott, but you didn’t say. Comparing the struck string versus the plucked string could help decide whether it’s a strike point issue or a bridge issue.

    Bob Anderson, RPT
    Tucson, aZ




  • 6.  RE: Poor sound from g#6 up

    Registered Piano Technician
    Posted 01-16-2021 11:38

    Doesn't that piano have adjustable posts on which the action sits that can just be turned down lower?  Not sure which posts you are talking about bending but bending the upper posts won't lower the action.