twisting front rail key pins

[David Ilvedson]

I believe that is nylon...

David Ilvedson, RPT
Pacifica, California






Original message
From: Avery 
To: "Pianotech List" 
Received: 6/24/2006 6:12:33 AM
Subject: Re: twisting front rail key pins


How about that hard teflon (whatever it is) type stuff that Bill Spurlock uses
on some things? 

Avery 

At 08:00 AM 6/24/2006, you wrote:

Hi David,
I have not tried that, The nylon would not hold up under use as well and might be too flexable.
It would be easier to work with.
Joe Goss RPT
Mother Goose Tools
imatunr at srvinet.com
www.mothergoosetools.com

----- Original Message ----- 

From: David Ilvedson 

To: pianotech at ptg.org 

Sent: Friday, June 23, 2006 10:54 PM

Subject: Re: twisting front rail key pins


That's a great idea, Joe.  How about made out of something that won't mar the pin?  Would nylon work?


David Ilvedson, RPT

Pacifica, California






Original message

From: "Joe And Penny Goss" 

To: "Pianotech List" 

Received: 6/23/2006 9:17:00 AM

Subject: Re: twisting front rail key pins


Yes there is a tool, but I need orders to produce it <O((

The tool is easily made out of !/4" square brass stock 3" long.

Two holes just larger than the narrow part of the front rail pin on each end.

One will be larger than the other for the most common sizes of pins.

After drilling the holes ream out the hole parallel to the length of the brass bar.

Use a triangle, round, half round, anything that you can get to work to

get the tool to slip over the size pin you are wanting to turn. You should have an ovalish hole.

To turn the pin lift the free end of the tool to bind it on the pin and turn until the tool points either straight towards you or away, depending on how you are using the tool. Careful not to bend the pin, Use the tool like you would use your tuning hammer thinking of the bending torque that you do not want.

To cut down on filing drill 3 small holes in line and then drill out the center hole larger.

Joe Goss RPT

Mother Goose Tools

imatunr at srvinet.com

www.mothergoosetools.com

----- Original Message ----- 

From: Amy Zilk 

To: Pianotech List 

Sent: Thursday, June 22, 2006 10:04 AM

Subject: Re: twisting front rail key pins


How do you untwist them?  I just rebushed a set of keys and some of the pins had been twisted.  I wasn't able to untwist any of them.  I didn't have any tools that didn't slip.  Do you know of any tools that work for this?  For that matter, what tool did you use to twist them?  


Thanks in advance,

az






Porritt, David wrote: 

You’re not missing anything.  That’s the reason the front rail pins are oblong and now round.  Replacing the bushings is a better solution but in a pinch I’ve turned quite a few!

dp

David M. Porritt

dporritt at smu.edu



From: pianotech-bounces at ptg.org [ mailto:pianotech-bounces at ptg.org] On Behalf Of Tom Sivak

Sent: Thursday, June 22, 2006 10:31 AM

To: pianotech

Subject: twisting front rail key pins

List


I've always been told, "Don't twist the front key pins to eliminate side motion on keys that have the key bushings worn out."  And I've always accepted that.

Last week I was at a composer/friend's house.  He has a 1930s Kimball grand, really worn out.  I did a full regulation on the piano, and he didn't want to pay for new key bushings, so I twisted them, and the difference is wonderful.  No side play on the keys, feels like a million bucks.

Now I understand it would be unethical to do that to a piano and then sell it, hiding a problem, but what's wrong with improving the play of a piano by doing the same?  Sure, it may accelerate wear on the bushings, but the bushings are worn out now!  They need replacing already.  All this does is extend the deadline and make the piano play much better until D Day comes.

Am I missing something?  What's the down side to this?


Tom Sivak

Chicago
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