Was shim pins/now crack options

[Farrell]

If there are cracks and it appears a shim may not hold well, perhaps the thing to consider is a plug and drill for the original size pin. Not really very difficult to do at all and very long lasting.

Terry Farrell
  
----- Original Message ----- 
From: <Wimblees@AOL.COM>
To: <pianotech@ptg.org>
Sent: Monday, February 18, 2002 8:58 AM
Subject: Re: Was shim pins/now crack options


> In a message dated 2/17/02 5:25:42 PM !!!First Boot!!!, drjazzca@yahoo.ca 
> writes:
> 
> 
> > So if a few pin holes have cracks,
> > over sizing will aggravate the problem.
> > 
> > Is swabbing the hole with epoxy before driving pins
> > considered acceptable for a client that does not want
> > to spend for a new block. Have people had tight
> > pins for a long time after doing this, or is it 
> > to be condemned, and plugs are definitely the way to
> > go.
> > 
> > 
> 
> Dave
> 
> Just swabbing the sides of the hole will not make the CA glue or epoxy 
> penetrate the cracks. I have done pin block repairs in the past. You want to 
> fill the hole about half way up with an epoxy, and drive the pin ion. The 
> epoxy then has to fine a way out, and the way is into the cracks, and around 
> the pin. For better results, drive in a 2/0 pin, and after the epoxy has 
> dried, remove the 2/0 and drive in a 3/0 pin. The torque will be a little 
> snappy, but the pin will hold. I have done this kind of repair on a whole pin 
> block with good results. It is a good fix on a piano that needs a new pin 
> block, but where the customer doesn't want to pay for one. 
> 
> Wim 
>