Oversize pins in a doped block

[Farrell]

One thing about trying thin CA on this piano is that it won't hurt anything, and it might solve your problem big-time cheap (as this seems to be the name of this particular game)! CA does tend to give a very nice feel to the pin when tuning. I vote CA first!

Terry Farrell
  
----- Original Message ----- 
From: "Mike and Jane Spalding" <mjbkspal@execpc.com>
To: <pianotech@ptg.org>
Sent: Tuesday, May 28, 2002 8:47 PM
Subject: Re: Oversize pins in a doped block


> Patrick, Don, Joe, Joe, Dave, and Hans,
> 
> Thanks much for your varied points of view.  While it's not my preferred solution, I am committed to restringing without replacing the pinblock.  Pinblock replacement knowledge and skills are not the problem, budget is the problem.  30 year old Story & Clark baby grand.  What is it worth?  What would it be worth if restrung with a new block?  Does not compute.  I believe I am trying to provide the best service under the circumstances, keeping the best interest of the customer in mind.
> 
> Trying to synthesize all of your experiences into some guidelines for this job:
> 
> 1.  Doped blocks can grip a pin tight enough to shear it off.  Therefore I should not increase the pin size a) as much as for a healthy block or b) at all.  The original pins felt very tight, but grabby, when I removed them.  They are .272 diameter.
> 
> 2.  Joe Goss, you said that CA can "counteract" the effect of the glycerine.  Could you elaborate?  Are you talking about making it tighter/looser, or tuning feel, or what?
> 
> I went to the archives and found Joe Garrett's description of pre-soaking the bushings before installation, which I would like to try.  Joe, how critical is the fit of the pin to the inside diameter of the bushing?
> 
> thanks
> 
> Mike Spalding RPT
> 
>