Thanks for all the info! So far, I've only used CA when ALL of three things exist: 1) The pins are so loose you can't tune it. 2) It's an old piano that would be junked for more reasons than just a loose pin block. 3) There is a possibility of a crack in the block, so using larger pins would only enlarge the crack. My general idea, is to use as much CA as the wood will take, but obviously, that is dangerous because the wood may take a bunch, then more will run elsewhere...gotta be more careful of that...been lucky so far. ;) Taking out the action is a VERY GOOD idea. Fortunately, I actually have taken the action out of the one I'm currently working on because I did other work on it while the glue was drying. ...still haven't done a thorough check on it, though. Thanks Again! -mags, WV > Man, I've SAVED about a dozen otherwise reasonable pianos from the scrap > heap using CA--sometimes in fairly copious quantities. But: > > 1. Use a drop cloth and newspapers under tilted uprights and cover or > remove > the action in grands. > 2. Have a small electric fan sitting there to blow the fumes away from > your > face. (Don't do this in any close, unventilated room) > 3. Play each note and move the pin a little counter-clockwise to flatten > the > note then back to pitch (or whereever it was) within a day or two of > treatment. > 4. Can usually be tuned by the second day, or so, if it was a heavy > application of CA and (sometimes) on the same day if it was a light > treatment. > 5. A slight counter-clockwise turn to the left before tuning the string is > a > good safety measure and you will be less alarmed by the "pop" that the pin > makes in breaking loose. > > By the way, I did a heavy treatment on a nice old (1890) upright THEN > found > that the bass strings were just too brittle to tune. Replaced the strings, > used the appropriately sized reamer to clean out the pin holes, and > inserted > 4/0 pins. Two observations: > > 1. Block tighter than Scrooges purse strings, but tuneable. > > 2. The CA was glunked (good word for it) quite unevenly on those old 2/0 > pins and very securely attached, in places. So it does leave you wondering > about the long-term effects of treatment--especially with large amounts of > CA. > > On the other hand: Shimming or repinning are relatively very expensive > vis-a-vis CA for a less-than-premium piano. And even in very nice > uprights, > pinblock replacement seems an extreme option compared to the glue-goo. > > And, after all, even if the CA doesn't work, or fails down the road, then > shimming, repinning, and block replacement are all still available > options. > I'd do ANY of the above before I'd use the old dope (I know, I know, the > stuff has it's cult followers, but not me.) > > Alan R. Barnard > Salem, MO > > > -----Original Message----- > From: pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org] On > Behalf > Of David Ilvedson > Sent: Wednesday, January 26, 2005 10:35 PM > To: pianotech@ptg.org > Subject: Re: good price for CA > > > So...when we come across a piano with loose pins throughout and need to > use > a inexpensive repair we do what exactly? One drop per tuning pin? Two > drops per tuning pin? Can't say as I'll ever need to do this > repair...but, > I sure as heck don't want any t-pins snapping off...yikes. The only time > I've used CA is on a bass tuning pin that wouldn't hold any tension and > then > I removed and swabbed the hole. Thinking back I might as well of put in a > larger pin...!!! In future I can just apply a couple of drops of CA to > the pin bushing? > > David I. > > > > > ----- Original message ---------------------------------------- > From: David Vanderhoofven <david@vanderpiano.com> > To: <mags@magsmusic.net>, Pianotech <pianotech@ptg.org> > Received: Wed, 26 Jan 2005 21:50:03 -0600 > Subject: Re: good price for CA > > >>Maggie, > >>I agree with William here. I would be cautious about using more than 2 >>oz >>of CA on a piano, and probably never more than 4 oz of CA glue on one >>piano. I had an unfortunate incident a few years ago... very old 4' >>something no-name grand, heavily rusted, AND... previously treated with >>some unknown pinblock treatment. I used 4 oz of CA glue, and since it >> was >>out of town, wasn't able to get back for a few weeks. Fast forward a few >>weeks, and during tuning I found the tuning pin torque excessively >>high. The piano was almost untunable because the torque was so high. >> AND, > >>a tuning pin snapped off flush with the plate. Joy! > >>Also, please be very careful sniffing those fumes from the CA glue. If >>you >>have to choose between your health and patching together a marginal piano >>using CA glue as a bandaid, consider that you only get one set of lungs. > >>Sincerely, >>David Vanderhoofven >>Joplin, MO > >>At 08:08 PM 1/26/2005, you wrote: >>> > Personally, I >>> > choose >>> > not to buy CA in anything other than 2oz bottles, even for >>> > pinblocks. Rarely have I ever needed more than 2oz to do a whole >>> > block. >>> >>> >>>Really?!?! I haven't done enough of them to know, but the one I am >>>working on took a 2oz bottle in a VERY small section. That's why I >>>ordered the 8oz bottle. Probably not the thing I will regularly run >>>into, I guess...? >>> >>> > Best, >>> > William R. Monroe >>> > >>> >>> >>>THANKS! >>>-Maggie, WV > > > >>_______________________________________________ >>pianotech list info: https://www.moypiano.com/resources/#archives > > _______________________________________________ > pianotech list info: https://www.moypiano.com/resources/#archives > > -- > No virus found in this incoming message. > Checked by AVG Anti-Virus. > Version: 7.0.300 / Virus Database: 265.7.4 - Release Date: 01/25/2005 > > > -- > No virus found in this outgoing message. > Checked by AVG Anti-Virus. > Version: 7.0.300 / Virus Database: 265.7.4 - Release Date: 01/25/2005 > > > Maggie Jusiel Piano Tuner Winds & Strings Teacher PO Box 1234 Athens, WV 24712-1234 (304)952-8615 <mags@magsmusic.net> <http://www.magsmusic.net> <http://www.casparwicky.net/quotepage.html>
This PTG archive page provided courtesy of Moy Piano Service, LLC