Greetings,
<< >I tuned a piano that had the tuning pin holes swabbed with epoxy. The
pins
>are very tight but they jump/snap like crazy making tuning a bit of a
>head-ache. Seems like a last ditch repair. >>
I went ahead and treated the bass holes with CA glue. I had dosed a number
of pins in the upper section after finding that they were not tight enough to
suit me. The thin CA did help, giving an additional 20 or so in/lbs. However,
in the bass, I put a newspaper under the block and dosed the holes with the
CA before I strung. I was using a nozzle to get below the top of the block,
(I didn't want to really glue the plate to block!), and I used a liberal
amount.
After 20 minutes or so, (it is humid around here, these days), I could
no longer smell CA around the block, so I began. I used 4/0 pins and it was
dramatic how much tighter the pins were! Most of these pins are around 125
in/lbs. So, it seems that there is much better results from treating the hole
before the pin went in.
I take notes on my work, so I will be able to track the long term results
of various means of application on this piano. I would certainly have
preferred to put in a new block, but that simply wasn't in the budget.
Regards,
Ed Foote RPT
http://www.uk-piano.org/edfoote/index.html
www.uk-piano.org/edfoote/well_tempered_piano.html
This PTG archive page provided courtesy of Moy Piano Service, LLC