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 >
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