[CAUT] Bore distances for Steinway L

[David Love]

The proper bore distance is the one you determine by measuring the distance
between the flange center pin height and the string height in each section.
Check that first.

 

Are you unable to get the let off closer because the let off buttons are
bottoming out against the rail?  If so then maybe you have the wrong buttons
on there.  Did you change the shanks and flanges to a new dimension? If so,
did you change the dip to accommodate that?  What is the current key dip?

 

David Love

www.davidlovepianos.com

 

From: caut-bounces at ptg.org [mailto:caut-bounces at ptg.org] On Behalf Of Paul T
Williams
Sent: Thursday, May 27, 2010 7:55 AM
To: CAUTlist
Subject: [CAUT] Bore distances for Steinway L

 

Hi all, 

It's been years since I bored my own hammers and need a number.  What is a
proper bore distance for a Steinway L (1924).  I installed some Abel
Naturals last fall and the project went on hold while the piano got a new
board and bridges. I just measured A-0 and it's 2-1/8".   I'm trying to
regulated the action and am having a tough time for some reason.   

The key level and dip is factory perfect, I've got the proper blow distance
of 1.75". I can't get let off any closer than 1/4"!! The rebuild was done
right and the plate is the same height as before.  I've even tried to raise
the blow a bit, and still can't get it to let off correctly. The frame is
perfectly bedded.  The wips are old, but in pretty good shape.  I started at
A-0 and only tried 5-6 notes before writing yall. 

I'm wondering what's going on.  Any thoughts of what to check next? 

Paul

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