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Loose bridge pins? #637144
12/01/05 10:05 PM
12/01/05 10:05 PM
Joined: May 2004
Posts: 37
Iowa
D
dherbon Offline OP
Full Member
dherbon  Offline OP
Full Member
D

Joined: May 2004
Posts: 37
Iowa
I was called to a clients house about three weeks after I had tuned their piano they had bought from a third party. It sounded fine when I finished but now the five double strings right above the lower break have developed a very loud buzz. When I put my fingers on the pins, the buss stopped. I suspect that when the heat came on last month the bridge pins have loosen and are now buzzing. I have not run into this problem in other pianos I have tuned so I would like to know what is the easiest and/or best repair method to use on this instrument. I did not see any cracks on the wood.

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Re: Loose bridge pins? #637145
12/02/05 12:08 AM
12/02/05 12:08 AM
Joined: May 2004
Posts: 347
california
S
scutch Offline
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scutch  Offline
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S

Joined: May 2004
Posts: 347
california
Try pulling one pin and swab the hole with ca glue or a good quality marine grade epoxy - enough to soak the wood fibers but not fill the hole. let it set up and harden - then drive the pin back in. If it gets the results you want then do the rest of them.

Re: Loose bridge pins? #637146
12/02/05 01:59 PM
12/02/05 01:59 PM
Joined: May 2004
Posts: 37
Iowa
D
dherbon Offline OP
Full Member
dherbon  Offline OP
Full Member
D

Joined: May 2004
Posts: 37
Iowa
scutch,
Interesting idea. I have some CA glue I used on a bad pin block. This would be easier than mixing epoxy as others suggested. The idea of swelling the wood is what is needed on the pins.
Thanks for the idea. DCH

Re: Loose bridge pins? #637147
12/03/05 11:51 AM
12/03/05 11:51 AM
Joined: Dec 2004
Posts: 57
San Clemente, CA
P
PianoGrappler Offline
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PianoGrappler  Offline
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Joined: Dec 2004
Posts: 57
San Clemente, CA
You can buy good quality CA glue at hobby shops. Comes in different thicknesses and you can buy a spray bottle of accelerator that really helps with the thicker grades. The thinnest grade will quickly soak into even tightly closed cracks. Used correctly, CA glue seems to be at least as strong as epoxy. It's also very rigid. I've never used it on bridge pins, but on a less expensive piano, it seems like a good choice.

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