[CAUT] clicking shanks

[reggaepass at aol.com]

It may also be possible that at some point the glides were moved down, raising the action a small amount.
Do thirty year old Bosies have glide bolts?  I know our forty year old ones don't.


Alan Eder


-----Original Message-----
From: Todd Loomis <teloomis at hotmail.com>
To: Caut <caut at ptg.org>
Sent: Tue, May 11, 2010 6:01 am
Subject: [CAUT] clicking shanks


Hello everyone,
I am not a CAUT, but follow your list for helpful ideas.
Recently I encountered a Bosendorfer grand of about 30-year vintage and noticed a strange hard click when a couple of the bass notes were played.  Upon investigation, it turned out that the shanks were striking the underside of the pin block!  Others seem very close to striking as well.  My feeling is that this piano always had close tolerances and that with hammer wear the already small gap was closed.  It may also be possible that at some point the glides were moved down, raising the action a small amount.
So far, short of hammer replacement, I have two ideas for a fix.  I could shave the pinblock corner if the plate flange allows it, or I could see if moving the action away from the player a fraction in the bass would provide the necessary clearance.
Has anyone encountered this situation before, and what would you do about it?

Thanks,
Todd Loomis
                          

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