Good advice by Jon. Especially the "start over" part. Now to convince the powers that be to let you do the work (and pay for it). One of the issues if you do start over will be choosing a set of hammers that will accommodate the longer bore with adequate tail length. It may not be a Steinway stock hammer-not the worst thing. David Love www.davidlovepianos.com From: caut-bounces at ptg.org [mailto:caut-bounces at ptg.org] On Behalf Of Jon Page Sent: Friday, March 05, 2010 6:32 PM To: caut at ptg.org Subject: Re: [CAUT] Shimming the Steinway Action Stack Left to right string height, measured at each break. Bass 8&1/16" to 8&1/8" Tenor 7&13/16 to 7&7/8 "alto" 7&7/8 to 8" treble (across the break) 7&15/16" to 7&7/8" Looks like the plate is 1/4-3/8" too high. Hammer Bore: bass 2&3/16" tenor 1&13/16" to 1&3/4" Stock hammer don't fit Hammers were sanded and polished, presuming circa 1/16 to 3/32 wear hammer tail length measured from center of shank to tail bass 1&3/16" tenor up 1&1/16 Nice tail length hammer shank flange center pin height 5&13/16" consistent wippen center pin height 3&5/16" HCH can be anywhere between 5 5/8" and 5 3/4", yours is already 1/16" higher action spread 4&3/8" Rick Baldassin recommends 112.75 mm which is 4.439 (yours is 3.375) drop screw clearence below pinblock & stretcher >=5/32" hammer blow distance varying from 2&1/16" to 1&15/16" in high treble A far cry from 1 3/4 or 1 7/8 for a D key dip is 7/16" .437, yeah that's deep Best to start over, completely :-) Or start by placing a sandpaper strip above the wippen screw to tip the flange center back. Longer hammer fer shur, I'm working on a 90's M where the action spread is 4.375 on A0 and 4.440 on C8. I'm placing a double thickness of sandpaper in the bass and tenor and possibly one strip in T 1 & 2. I have to check the first note in the top treble section for spread. -- Regards, Jon Page -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/caut.php/attachments/20100305/019f0237/attachment.htm>
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