2017 was our 20th year online!

Welcome to the Piano World Piano Forums
Over 3 million posts about pianos, digital pianos, and all types of keyboard instruments
Join the World's Largest Community of Piano Lovers (it's free)
It's Fun to Play the Piano ... Please Pass It On!

Shop our online store for music lovers
SEARCH
Piano Forums & Piano World
(ad)
Petrof Pianos
Petrof Pianos
(ad)
Best of Piano Buyer
 Best of Piano Buyer
(ad)
Faust Harrison Pianos
Faust Harrison 100+ Steinway pianos
Who's Online Now
58 members (akc42, Barnardo, AZNpiano, 3B43, anotherscott, Anglagard44, 16 invisible), 492 guests, and 313 robots.
Key: Admin, Global Mod, Mod
(ad)
Estonia Pianos
Estonia Pianos
Previous Thread
Next Thread
Print Thread
Hop To
Buzzing long hinges
#611071 11/22/08 02:41 AM
Joined: Feb 2002
Posts: 1,457
1000 Post Club Member
OP Offline
1000 Post Club Member
Joined: Feb 2002
Posts: 1,457
I thought I would share an old fix, that some people may not have heard of.

As most technician's have experienced, long hinges in piano lids (grand or upright pianos) very often develop sympathetic vibrations. The resulting buzzes only on certain notes in the piano can really alarm new piano owners, and although just wiggling the lid usually stops it temporarily, people tend to feel it is a serious issue in the piano.

Today we received back a piano with a supposed incurable buzz in the top board long hinge. The technician had already installed a new hinge, but the new one started buzzing also. He also accidentally chipped the finish when putting the new hinge on (ouch!) so when the new hinge started buzzing, the owner started demanding that the dealer replace the piano. I sort of understand their feelings.

What is bothering me, though, is that the fix was so simple! I used a syringe to apply linseed oil in the openings in the hinge, where the brass is curled around the pin. After putting a bead of oil on, I worked the hinge back and forth for 15 seconds, then wiped the excess oil off. The buzz was fixed. 5 minutes work!

There are other techniques as well, such as removing the hinge pin and putting a curve in it. But the linseed oil is really ideal - it is slightly thick when applied, then gets thicker and sticky inside the hinge over a week or so, permanently damping any vibrations of the pin.

After tuning and regulating the piano, I played it for about 30 minutes to try to get the hinge to work into a vibrating position again, but it never did. In my past use of this trick over many years, I never had the noise return.

So if you haven't tried this method, give it a go. Works great! If only I could get the factory to do it before they ship out the pianos! I'm going to try again next week . . .


Don Mannino, MPA
Kawai America
(ad)
Piano & Music Accessories
piano accessories music gifts tuning and moving equipment
Re: Buzzing long hinges
#611072 11/22/08 02:47 AM
Joined: Apr 2007
Posts: 3,263
3000 Post Club Member
Offline
3000 Post Club Member
Joined: Apr 2007
Posts: 3,263
Great tip, Don. I've had good results putting a greasy type lubricant on the hinge also. However, the linseed sounds particularly effective. Its also a "green" repair!


Ryan Sowers,
Pianova Piano Service
Olympia, WA
www.pianova.net
Re: Buzzing long hinges
#611073 11/22/08 09:12 AM
Joined: Aug 2008
Posts: 515
W
500 Post Club Member
Offline
500 Post Club Member
W
Joined: Aug 2008
Posts: 515
Hi Don,
I spent many hours with the same problem years ago on a Young Chang U131. I finally called Paul Gilchirst at YC Canada and he told me to use linseed oil. Problem fixed in a matter of minutes.

Wayne


Wayne Walker
Walker's Piano Service
http://www.walkerpiano.ca/
Re: Buzzing long hinges
#611074 11/22/08 11:36 AM
Joined: May 2004
Posts: 2,018
K
2000 Post Club Member
Offline
2000 Post Club Member
K
Joined: May 2004
Posts: 2,018
Thank you!!!


Keith Roberts
Keith's Piano Service
Hathaway Pines,Ca
Re: Buzzing long hinges
#611075 11/22/08 12:09 PM
Joined: May 2007
Posts: 1,645
D
1000 Post Club Member
Offline
1000 Post Club Member
D
Joined: May 2007
Posts: 1,645
I know this one's going to be useful, probably in the near future, too. Thanks, Don.


Promote Harmony in the Universe...Tune your piano!

Dave Stahl, RPT
Piano Technician's Guild
San Jose, CA
http://www.youtube.com/watch?v=JAniw3m7L2I
http://dstahlpiano.net
Re: Buzzing long hinges
#611076 11/22/08 12:38 PM
Joined: Nov 2007
Posts: 6,828
6000 Post Club Member
Offline
6000 Post Club Member
Joined: Nov 2007
Posts: 6,828
Thanks Don! That should save some phone calls to Kawai as well from techs.

I used to remove half of the hinge, fall board or whatever hinge was the offending one. I would pull it out of one side 1/2 way. Then, rub Vaseline on it, slide it back in removing excess Vaseline as it went it. Then, I would tap it out the other side in the same manner, half way and doing likewise. The Vaseline took up any gaps there were inside of the hinge eliminating all future vibrations but, it was much more time consuming. This will be tons easier me thinks!


Jerry Groot RPT
Piano Technicians Guild
Grand Rapids, Michigan
www.grootpiano.com

We love to play BF2.
Re: Buzzing long hinges
KawaiDon #2898402 10/08/19 11:08 PM
Joined: Apr 2019
Posts: 152
V
Full Member
Offline
Full Member
V
Joined: Apr 2019
Posts: 152
Thank you so much for this suggestion!

Question: what kind of linseed oil is ideal for this? Apparently there's all kinds of varieties... refined, cold-pressed, drying, standing, thickened... not sure which to get! See below...

https://www.amazon.com/gp/product/B...3ef368b&pf_rd_r=6TWDS3DCEC4Y5DXY48VB

Last edited by vara411; 10/08/19 11:08 PM.

Yamaha AvantGrand N3X
Yamaha MOX8
Roland FP-10
Re: Buzzing long hinges
vara411 #2898543 10/09/19 09:38 AM
Joined: Sep 2010
Posts: 51
S
Full Member
Offline
Full Member
S
Joined: Sep 2010
Posts: 51
I would just get regular boiled linseed oil that you can find in a hardware store.

Re: Buzzing long hinges
KawaiDon #2898614 10/09/19 12:23 PM
Joined: Mar 2018
Posts: 425
Full Member
Offline
Full Member
Joined: Mar 2018
Posts: 425
Thank you for sharing this tip. The hinges on my Baldwin SD-10 tend to buzz, especially when the lid is closed. When it happens I either ignore it or press a little on the pin, which stops it for a while.

What sort of syringe do you use for this, and where would one get such a syringe?


Austin Rogers, PhD
Music Teacher in Cedar Park, TX
Baldwin SD-10 Concert Grand "Kuroneko"
Re: Buzzing long hinges
KawaiDon #2899294 10/11/19 04:07 PM
Joined: Jan 2014
Posts: 259
Full Member
Offline
Full Member
Joined: Jan 2014
Posts: 259
Syringes aren't hard to find. I just saw a 15-pack on Amazon with an assortment of blunt tipped needles for $5.


Anthony Willey, RPT
PianoMeter
Willey Piano Tuning
Re: Buzzing long hinges
KawaiDon #2902825 10/21/19 03:24 PM
Joined: Apr 2019
Posts: 152
V
Full Member
Offline
Full Member
V
Joined: Apr 2019
Posts: 152
Sorry to belabor this, but I got the linseed oil and am now a little gun-shy on how to proceed... could someone please elaborate a little bit more on how this is administered?

Many thanks.


Yamaha AvantGrand N3X
Yamaha MOX8
Roland FP-10
Re: Buzzing long hinges
vara411 #2902894 10/21/19 06:47 PM
Joined: Aug 2012
Posts: 634
G
500 Post Club Member
Offline
500 Post Club Member
G
Joined: Aug 2012
Posts: 634
Originally Posted by vara411
Sorry to belabor this, but I got the linseed oil and am now a little gun-shy on how to proceed... could someone please elaborate a little bit more on how this is administered?

Many thanks.


This can be a messy job if you are not careful. I had a tech that needed to replace my hinge because of cosmetic damage caused by imprecise application into the grooves of the hinge.


Shigeru Kawai SK-7
Mason and Hamlin BB
Re: Buzzing long hinges
Dr. Rogers #2902902 10/21/19 07:15 PM
Joined: Jan 2014
Posts: 259
Full Member
Offline
Full Member
Joined: Jan 2014
Posts: 259
Originally Posted by Dr. Rogers
Thank you for sharing this tip. The hinges on my Baldwin SD-10 tend to buzz, especially when the lid is closed. When it happens I either ignore it or press a little on the pin, which stops it for a while.

What sort of syringe do you use for this, and where would one get such a syringe?


OK, hang on here. You're talking about a grand piano. You've got like 3 hinges with maybe 2-inch long hinge pins. We're talking about upright pianos with a single long hinge pin that runs the entire length of the piano. You shouldn't need a syringe. Just close the lid and pull the hinge pins out one at a time.


Anthony Willey, RPT
PianoMeter
Willey Piano Tuning

Moderated by  Piano World 

Link Copied to Clipboard
(ad)
Pianoteq
PianoTeq Karsten Collection
(ad)
Piano Life Saver - Dampp Chaser
Dampp Chaser Piano Life Saver
Download Sheet Music
Virtual Sheet Music - Classical Sheet Music Downloads
New Topics - Multiple Forums
test of muscle memory vs.
by stemPianist - 09/20/20 03:07 PM
A New Article for Piano Buyer.
by Steve Cohen - 09/20/20 03:00 PM
The bass in Joey Alexander's piano
by Emery Wang - 09/20/20 01:10 PM
question on teachers
by Manne janne - 09/20/20 11:55 AM
What's Hot!!
News from the Piano World
3,000,000+!
------------------
Posting Pictures on the Forums
-------------------
Forums RULES & HELP
-------------------
ADVERTISE on Piano World
Forum Statistics
Forums41
Topics201,734
Posts3,005,029
Members98,606
Most Online15,252
Mar 21st, 2010
Please Support Our Advertisers


Faust Harrison 100+ Steinways

Dampp Chaser Piano Life Saver

 Best of Piano Buyer

PianoTeq Bechstein
Visit our online store for gifts for music lovers

Virtual Sheet Music - Classical Sheet Music Downloads



 
Help keep the forums up and running with a donation, any amount is appreciated!
Or by becoming a Subscribing member! Thank-you.
Donate   Subscribe
 
Our Piano Related Classified Ads
| Dealers | Tuners | Lessons | Movers | Restorations | Pianos For Sale | Sell Your Piano |

Advertise on Piano World
| Subscribe | Piano World | PianoSupplies.com | Advertise on Piano World |
| |Contact | Privacy | Legal | About Us | Site Map | Free Newsletter |


copyright 1997 - 2020 Piano World ® all rights reserved
No part of this site may be reproduced without prior written permission
Powered by UBB.threads™ PHP Forum Software 7.7.4