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#1922169 - 07/03/12 11:42 AM fixing a buzzing lid hinge? Need advice.  
Joined: May 2010
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dcb Offline
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So the good news is I finally figured out what was causing some buzzing in my upright...there are three hinges on the lid and one of them is causing the buzz. I took the hinge pin out and the buzzing stopped.

I put some thick lithium grease on the pin and put it back but the buzzing started again.

Any ideas what I should use to fix it? Different type of grease maybe? Any suggestions would be appreciated.

Thanks!

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#1922171 - 07/03/12 11:45 AM Re: fixing a buzzing lid hinge? Need advice. [Re: dcb]  
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Silverwood Pianos Offline
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Vancouver B. C. Canada

Remove the pin and put a small bend in the length,then re-install


Dan Silverwood
www.silverwoodpianos.com
http://silverwoodpianos.blogspot.com/
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"If you think it's expensive to hire a professional to do the job, wait until you hire an amateur."
#1922175 - 07/03/12 11:55 AM Re: fixing a buzzing lid hinge? Need advice. [Re: dcb]  
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BDB Offline
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Linseed oil.


Semipro Tech
#1922181 - 07/03/12 12:09 PM Re: fixing a buzzing lid hinge? Need advice. [Re: dcb]  
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dcb Offline
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Exactly what I was looking for. Thanks.

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#1922274 - 07/03/12 04:12 PM Re: fixing a buzzing lid hinge? Need advice. [Re: dcb]  
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dcb Offline
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Went to the hardware store and didn't know what to get. Should I use boiled linseed oil or raw linseed oil?

Thanks!

#1922289 - 07/03/12 04:56 PM Re: fixing a buzzing lid hinge? Need advice. [Re: dcb]  
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tds Offline
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Linseed oil is fine to use, but look at it this way. You will use about 3 drops out of whatever size container it comes in and the rest of it will probably sit around unused forever.

I would just put a slight bend in the middle of the pin and put it back in, if it were me. I'm just sayin'...

YMMV!

Last edited by tds; 07/03/12 05:04 PM.

Stay tuned.

Tom Seay, Recovering Piano Technician
Bastrop, Texas
#1922290 - 07/03/12 04:57 PM Re: fixing a buzzing lid hinge? Need advice. [Re: dcb]  
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tonecrafter tuning Offline
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I don't know how linseed oil would remedy a buzz. I extract the hinge pin, kink/bend it slightly and insert it.
The kink tightens the pin so it doesn't move, hence buzz, in the hinge leafs.

#1922295 - 07/03/12 05:09 PM Re: fixing a buzzing lid hinge? Need advice. [Re: dcb]  
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dcb Offline
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What do you think would be the easiest, safest method to put a slight bend in the hinge? I would be inclined to put it in a vice with something metal against the middle and squeeze it in the vice. Any better ideas than that? Should I heat it up first?

I've also heard of "peening" it by using a hammer and center punch to put some dimples in the pin. This would make it slightly bigger. Any thoughts on this method?

#1922296 - 07/03/12 05:11 PM Re: fixing a buzzing lid hinge? Need advice. [Re: dcb]  
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Silverwood Pianos Offline
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Place the pin on a hard surface and give it a whack with a hammer right in the middle. Then pick up the pin and have a look.


Dan Silverwood
www.silverwoodpianos.com
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"If you think it's expensive to hire a professional to do the job, wait until you hire an amateur."
#1922305 - 07/03/12 05:27 PM Re: fixing a buzzing lid hinge? Need advice. [Re: dcb]  
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tds Offline
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Bastrop, Texas
Put it in a bench vise with half the pin sticking out and give it a GENTLE tap at the top. That should do it.


Stay tuned.

Tom Seay, Recovering Piano Technician
Bastrop, Texas
#1922328 - 07/03/12 06:30 PM Re: fixing a buzzing lid hinge? Need advice. [Re: tds]  
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wayne walker Offline
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Linseed oil is the only way to fix the buzz. I had spent a number of hours taken a hinge apart, bending the pin etc and still had the buzz. Go to art supply store and you should be able to buy a small bottle of linseed oil, it doesn't make any difference if it is boiled or raw. Apply a drop at each segment on the hinge, rub it in with your finger, work the hinge a bit and the buzz will be gone


Wayne Walker
Walker's Piano Service
http://www.walkerpiano.ca/
#1922336 - 07/03/12 06:44 PM Re: fixing a buzzing lid hinge? Need advice. [Re: dcb]  
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CC2 and Chopin lover Offline
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Take the can of linseed oil, place it in the vise, and whack it real good with the hammer. Then take the hinge pin and roll it around the floors, walls and ceiling.......wherever you see linseed oil. Now replace the hinge pin....the buzz should be gone


Piano Technician/Tuner
#1922338 - 07/03/12 06:48 PM Re: fixing a buzzing lid hinge? Need advice. [Re: dcb]  
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tds Offline
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Chacun â son goût!


Stay tuned.

Tom Seay, Recovering Piano Technician
Bastrop, Texas
#1922406 - 07/04/12 12:19 AM Re: fixing a buzzing lid hinge? Need advice. [Re: dcb]  
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kpembrook Offline
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Michigan
Apply thin CA and then spray ProtekCLP
Immediately work back and forth.

Close to a permanent fix. Works real nice on all those buzzing music desk and lid hinge pins.


Keith Akins, RPT
Piano Technologist
USA Distributor for Isaac Cadenza hammers and Profundo Bass Strings
Supporting Piano Owners D-I-Y piano tuning and repair
#1922772 - 07/04/12 09:18 PM Re: fixing a buzzing lid hinge? Need advice. [Re: dcb]  
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dcb Offline
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I put some Linseed Oil on the hinge pin and thought I had fixed the problem. Then tonight I was playing again and it started again. This time, different note and it didn't go away when I opened the lid like last time. Pretty frustrating stuff. Now I'm not even sure it is the hinge anymore. I've called my piano technician but haven't heard back from her. It would be great if she could come by and fix it but I'm really worried that because the buzz is so inconsistent it may be fine when she arrives and then start up again a day later.

I'm trying to gather as much information for her as possible to save her some time but I think I'm going to give up pretty soon.

Any ideas why the buzz doesn't always happen on the same exact note? I'm hoping this is a common problem with a common cause. Anyway, thanks for everyone's help. I appreciate it.

#1923261 - 07/06/12 03:54 AM Re: fixing a buzzing lid hinge? Need advice. [Re: dcb]  
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pianolive Offline
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Did you tighten the hinge screws?

#1923264 - 07/06/12 04:07 AM Re: fixing a buzzing lid hinge? Need advice. [Re: dcb]  
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dcb Offline
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I tightened the hinge screws. As of now the buzz is gone, but it tends to come back seemingly in a different place. My piano tech is coming in a couple weeks so I'll keep observing and see what happens.

#1923370 - 07/06/12 11:15 AM Re: fixing a buzzing lid hinge? Need advice. [Re: dcb]  
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BDB Offline
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It could be coming from someplace else on the piano, or in the room. If you press against the part you think it is coming from and it does not stop, chances are it is something else.


Semipro Tech
#1925610 - 07/11/12 11:00 PM Re: fixing a buzzing lid hinge? Need advice. [Re: CC2 and Chopin lover]  
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Originally Posted by CC2 and Chopin lover
Take the can of linseed oil, place it in the vise, and whack it real good with the hammer. Then take the hinge pin and roll it around the floors, walls and ceiling.......wherever you see linseed oil. Now replace the hinge pin....the buzz should be gone


Now that's funny. Thanks I needed that.

#1925632 - 07/11/12 11:49 PM Re: fixing a buzzing lid hinge? Need advice. [Re: dcb]  
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Sandy Eggo, California
I've found a bug zapper does a pretty good job of getting rid of buzzing sounds...


Happiness is a freshly tuned piano.
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