[pianotech] Verdigris - again

[David Love]

Typically I just replace all the parts since all of these pianos are getting
old enough to need hammer changes anyway and if the hammers are reusable and
the customer wants them then, yes, you can pop them off and reglue them onto
the new shanks.  

However, I would like to know from those who have changed the entire flange
and monitored it whether the problem returned.  And since we're sometimes
looking for ways to shortcut full replacement for the benefit of our
customers, I wonder if a few drops of thin CA glue on the birds eye might
not seal the wood or otherwise bind the contaminants (if they are there to
begin with) such that a flange replacement might be possible. 

On the piano that Israel mentioned did I gather that this was an old
Steinway upright with a double flange?  A bit more complicated.     

David Love
www.davidlovepianos.com


-----Original Message-----
From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf
Of Peter Poole
Sent: Sunday, November 08, 2009 6:12 PM
To: pianotech at ptg.org
Subject: Re: [pianotech] Verdigris - again

There must be hundreds of technicians that have dealt with verdigris; 
have they all seen it come back when replacing only the flanges? The 
only alternative would be to replace shanks and flanges; which means 
replacing hammers also, or popping off the old ones and regluing.

Best, Peter

Peter Poole
ppoole at metrocast.net



On Nov 8, 2009, at 9:07 PM, David Love wrote:

> Is that actually true?  I know that rebushing the flanges is a waste 
> since the contaminants are in the wood of the flange but since the 
> lubricant used was originally in the felt of the flange bushing 
> doesn’t replacing the flanges take care of the problem?  If not that 
> presumes that the lubricant continues to migrate out of the birds eye 
> and I wonder if it was ever there to begin with.  Anyway, I’ve not 
> tried it but I wonder if anyone has done it that way. 
>  
> David Love
> www.davidlovepianos.com
>  
> From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On 
> Behalf Of Jon Page
> Sent: Sunday, November 08, 2009 5:12 PM
> To: pianotech at ptg.org
> Subject: Re: [pianotech] Verdigris - again
>  
>> re my earlier post about how long to replace set of flanges-that is 
>> why
>> I am doing this job. Almost every note is frozen. Never seen such a 
>> bad
>> case.
>  
> Changing the flanges is a waste of time. The vertigris is in the felt
> and the wood surrounding it.
>  
> -- 
>
>  Regards,
>
>  Jon Page