I haven't a clue as to what is going on! Somebody dug up a post from me that is 10 months old. BTW, I agree with you Mike. I used the Spurlock method and the keys came out great. Terry Farrell Hey this post is year old. What's going on? kpiano > Terry, > In my opinion, the only way to eliminate all of the problems (fore and > aft motion, side to side motion, issues of spacing and regulation) > associated with worn balance holes is to replace them. The keys and keyboard > are the foundation of all regulation and problems here will multiply further > on. The method I've found to be the most effective is the Spurlock Method, > which if you have a copy of his article is actually a method developed by > David Snyder (RPT PA Chapter). This involves locating the original balance > hole location, machining out the bad balance hole, replacing the wood with > an insert, relocating the hole and redrilling. This method returns the keys > to an original state, but is of course more difficult and time consuming > than other methods. If the piano warrants this type of time expenditure than > this is, in my opinion the way to go. Mike Morvan Blackstone Valley Piano > ----- Original Message ----- > From: "David Nereson" <dnereson@4dv.net> > To: "Pianotech" <pianotech@ptg.org> > Sent: Wednesday, February 16, 2005 7:02 AM > Subject: Re: Balance Rail Holes - Worn > > > > barr8345@bellsouth.net wrote: > > > >>Hi Terry, > >>I have had great success repairing this type of damage using maple veneer. > >>Mount a balance rail pin in a scrap board, position key upside down and > >>saw a kerf the thickness of the veneer about 1/4 inch deep using the > >>balance rail pin as a guide. Glue the veneer in this kerf and you will > >>have a permanent repair. I can't remember which manufacturer's rep > >>suggested this repair to me but it does work. > >> > >>Norman Barrett > >>Memphis Chapter > >> > >>----- Original Message ----- > >>From: "Farrell" <mfarrel2@tampabay.rr.com> > >>To: <pianotech@ptg.org> > >>Sent: Tuesday, March 30, 2004 7:16 PM > >>Subject: Balance Rail Holes - Worn > >> > >> > >>Hello Listees, > >> > >>I'm rastling with the keys and keyframe of an old, well worn, WNG action. > >>I'm trying to decide what to do with the center keypin key holes. I have > >>limited, as best, experience repairing key center pin holes. The picture > >>below shows the worst of the obviously worn keys. I'm just kinda feelin' > >>that these are past the point of gluing in a shim. Waddaya ya'll think, > >>and what is the latest and greatest regarding rebuilding a key center rail > >>pin hole? Thanks. > >> > >>Terry Farrell > >>_______________________________________________ > >>pianotech list info: https://www.moypiano.com/resources/#archives > >> > >> > > I didn't look at the pictures, but my own old upright had extremely > > worn and over-treated balance pin holes. They'd been eased, shimmed, > > sized, poked, elongated, etc. I almost went the Spurlock route of > > inserting 1/8" basswood inserts (see May 1990 Journal) but decided I > > didn't want to do that much work. So I opted for installing oversize > > balance rail pins. I did drill the key holes on the drill press, with the > > table set at the correct angle, but I was able to just drive the new pins > > into the existing holes in the balance rail without drilling them out > > first. See also Susan Graham's article in Oct 1988 Journal; and for the > > front pin mortise, Fern Henry's article in the May 1989 Journal. > > --David Nereson, RPT
This PTG archive page provided courtesy of Moy Piano Service, LLC