[pianotech] blowdistance

[David Ilvedson]

Shim the hammer rest felt

David Ilvedson, RPT
Pacifica, CA  94044

----- Original message ----------------------------------------
From: wimblees at aol.com
To: Pianotech at PTG.org
Received: 8/7/2009 8:05:50 PM
Subject: [pianotech] blowdistance


>I've got a question about blow distance on an upright piano. I just worked on a 
>Hamilton, and found that the blow distance in the bass was at 1 3/4", but in the 
>upper treble it was closer to 2". The rail is straight and?resting on the action 
>brackets (with felt shims). If I?raise the rail so that?the treble is 1 3/4", then bass 
>will be too close. I've seen that on other pianos in the past, but never that extreme. 
>Any suggestions?


>Willem (Wim) Blees, RPT
>Piano Tuner/Technician
>Mililani, Oahu, HI
>808-349-2943
>Author of: 
>The Business of Piano Tuning
>available from Potter Press
>www.pianotuning.com