Dollars to donuts its the jack unglued at the joint. If so, make sure you don't get glue into the bushing or any place other than just the joint at the elbow.
The other thing that can contribute to this problem is too much aftertouch, jamming the jack between the cushion and the let off button. Check to make sure the jack is not touching the felt cushion in the rep lever at full key depression. If it is, you've got some work to do.
Peter Grey Piano Doctor
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Peter Grey
Stratham NH
(603) 686-2395
pianodoctor57@gmail.com------------------------------
Original Message:
Sent: 05-02-2024 18:37
From: Steven Rosenthal
Subject: Blocking hammer?
The jack on Steinways is made of two pieces and the joint of the "dog leg" comes loose. If the jack on the offending note is not in alignment with the other jacks, that's a big clue. If the joint is loose the end of the jack will wiggle like a loose tooth.
Sometimes the felt pad on the let-off button will come unglued and fall off that will do it.
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Steven Rosenthal RPT
Honolulu HI
(808) 521-7129
Original Message:
Sent: 05-02-2024 18:23
From: Timothy Edwards
Subject: Blocking hammer?
One of my customers called me the other day complaining that ONE of her notes was going "thunk" but just occasionally and only on a firm, repeated blow. The way she described it sounded like a blocking hammer to me, but having dealt with this issue many times on uprights (I tuned most of my years in a financially depressed area of Appalachia and encountered very few grands), but not yet on a grand; I'm doing a bit of homework before the appointment. The piano is a Steinway model M. The pinblock is rather dry with some "less-than-solid" pins (but still holding). I plan to check the let off and back checking and for broken or unglued flanges, but beyond that what should I suspect? (particularly if I'm unable to duplicate the problem)
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Timothy Edwards
Beckley WV
(740) 517-7636
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