Vinegar will usually reactivate hide glue and be sufficient to reset soundboard to rim. Dan Gurnee On Wednesday, March 1, 2006, at 11:16 AM, central wrote: > Greg, Ron, and other Soundboard Experts, > If you do find a soundboard to rim crack with chunks of aging > excess > glue collar flaking away, and you don't want to rebuild it what then? > Will > thin CA glue squirted into the crack do anything to restore tone? > -Mike Jorgensen > > > On 3/1/06 2:09 PM, "Greg Newell" <gnewell@ameritech.net> wrote: > >> >> Bob, >> Sorry for the delay, but yes, that's >> exactly how I would check for it other than visually where you can. >> >> best, >> Greg >> >> >> At 01:06 AM 3/1/2006, you wrote: >>> Good idea to check this. Is this best checked >>> underneath the SB with a palatte knife or similar for >>> a solid connection between the two? >>> >>> I know SB crack is in some sense a cosmetic >>> distraction, but does speak about how dried out the >>> board is getting to cause separation. >>> >>> Bob Hull >>> >>> --- Greg Newell <gnewell@ameritech.net> wrote: >>> >>>> May sound like a beginners answer but have you >>>> checked the soundboard's glue joint connection to >>>> the inner rim? >>>> >>>> Greg Newell >>>> >>>> >>>> >>>> At 12:08 AM 3/1/2006, you wrote: >>>>> The catastrophic action failure thread may have >>>> merged >>>>> into a discussion of seasonal loss of crown/db and >>>>> therefore I guess sustain/tonal quality. >>>>> >>>>> Here are observations about two terrible sounding >>>> NY >>>>> D's I am servicing; Plus, a question about finding >>>> the >>>>> culprit. >>>>> >>>>> #1. I went to a recital this evening at one of the >>>>> univ. for which I do piano service. The NY D (mid >>>>> 1970's era) was more dreadful than usual, >>>> particularly >>>>> in tonal fullness. There was the initial splatter >>>> of >>>>> sound, quite thin and short, in octaves 5 and 6. >>>> It >>>>> sounds this way I guess at other times of the year >>>> but >>>>> I really noticed it tonight sitting out in the >>>>> audience. When I tune, I zero in so much on the >>>>> tuning that I turn off my voicing perception. >>>> There's >>>>> no money in their budget for improvements at this >>>>> time, unfortunately. >>>>> >>>>> As I sat there, I wanted to investigate, does this >>>>> piano need, voicing or new hammers or a new board? >>>>> Hammers have been replaced (by a previous tech) and >>>>> aren't that worn. The SB has a crack in it that is >>>>> definitely more visible during this time of the >>>> year. >>>>> Yesterday when I tuned somewhere here in the area >>>> it >>>>> was 28% rh at 71 deg. Could be a little different >>>> I >>>>> suppose from location to location. >>>>> >>>>> #2. The second D, which is bothering me greatly is >>>> in >>>>> a church. It's also a 1970's model. I put all new >>>>> hammers and wippens in it replacing teflon parts >>>> and >>>>> problems about 2 years ago. I hoped for great >>>>> improvement in tone. While I got some, the piano >>>>> still lacks power terribly. I am in the process of >>>>> adding keytop/acetone which is giving some help but >>>>> still not what I want. When I pluck a string it's >>>> not >>>>> much or any different than the hammer strike. A >>>>> rocker gauge on the bridge of this piano indicates >>>>> there is downbearing. This one has a Dampp Chaser, >>>> the >>>>> univ. one doesn't. >>>>> >>>>> Do you always check crown/downbearing a particular >>>>> way: under the board with a thread; rocker gauge on >>>>> bridge; thread from agraffe to hitch pin; Lowell >>>> gauge >>>>> or other? I used different methods, but wonder >>>> which >>>>> gives the best reading. >>>>> >>>>> Bob Hull >>>>> >>>>> --- Ron Nossaman <rnossaman@cox.net> wrote: >>>>> >>>>>>> Regarding Steinway, the loose pinning >>>> (currently >>>>>> 20% RH at >>>>>>> this particular venue), coupled with raising >>>> the >>>>>> hammer >>>>>>> line several mm (key-dip; a very skinny .400") >>>>>> brought >>>>>>> about the dread CAF on several notes. (see >>>> Eric's >>>>>> test) >>>>>> >>>>>> Something I've been meaning to ask. New York >>>>>> Steinways, I >>>>>> assume? 20%RH at 70° puts soundboards at 4.5%MC. >>>>>> That's at or >>>>>> below (depending on who you talk to) what they >>>> were >>>>>> originally >>>>>> dried down to for compression crowning with flat >>>>>> ribs. There >>>>>> shouldn't be a lick of crown anywhere in these >>>>>> pianos in these >>>>>> conditions, and they ought to be mostly killer >>>>>> octave and >>>>>> sound thoroughly terrible right now. Do they? >>>>>> >>>>>> Ron N >>>>>> _______________________________________________ >>>>>> caut list info: >>>>>> https://www.moypiano.com/resources/#archives >>>>>> >>>>> >>>>> >>>>> >>>>> __________________________________________________ >>>>> Do You Yahoo!? >>>>> Tired of spam? Yahoo! Mail has the best spam >>>> protection around >>>>> http://mail.yahoo.com >>>>> _______________________________________________ >>>>> caut list info: >>>> https://www.moypiano.com/resources/#archives >>>> >>>> Greg Newell >>>> Greg's piano Forté >>>> mailto:gnewell@ameritech.net >>>> >>>> _______________________________________________ >>>> caut list info: >>>> https://www.moypiano.com/resources/#archives >>>> >>> >>> >>> __________________________________________________ >>> Do You Yahoo!? >>> Tired of spam? Yahoo! Mail has the best spam protection around >>> http://mail.yahoo.com >>> _______________________________________________ >>> caut list info: https://www.moypiano.com/resources/#archives >> >> Greg Newell >> Greg's piano Forté >> mailto:gnewell@ameritech.net >> >> _______________________________________________ >> caut list info: https://www.moypiano.com/resources/#archives > > _______________________________________________ > caut list info: https://www.moypiano.com/resources/#archives >
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