Welcome to the Piano World Piano Forums
Over 2 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!

Gifts and supplies for the musician
SEARCH
the Forums & Piano World

This custom search works much better than the built in one and allows searching older posts.
(ad 125) Sweetwater - Digital Keyboards & Other Gear
Digital Pianos at Sweetwater
(ad) Pearl River
Pearl River Pianos
(ad) Pianoteq
(ad) P B Guide
Acoustic & Digital Piano Guide
Ad (Piano Sing)
How to Make Your Piano Sing
Who's Online
80 registered (A Guy, Almaviva, anamnesis, ando, 26 invisible), 1248 Guests and 14 Spiders online.
Key: Admin, Global Mod, Mod
Quick Links to Useful Piano & Music Resources
Our Classified Ads
Find Piano Professionals-

*Piano Dealers - Piano Stores
*Piano Tuners
*Piano Teachers
*Piano Movers
*Piano Restorations
*Piano Manufacturers
*Organs

Quick Links:
*Advertise On Piano World
*Free Piano Newsletter
*Online Piano Recitals
*Piano Recitals Index
*Piano & Music Accessories
*Music School Listings
* Buying a Piano
*Buying A Acoustic Piano
*Buying a Digital Piano
*Pianos for Sale
*Sell Your Piano
*How Old is My Piano?
*Piano Books
*Piano Art, Pictures, & Posters
*Directory/Site Map
*Contest
*Links
*Virtual Piano
*Music Word Search
*Piano Screen Saver
*Piano Videos
*Virtual Piano Chords
(ad) Estonia Piano
Estonia Pianos
Topic Options
#656006 - 07/26/06 01:26 AM wind motor
Dans Piano Service Offline
Full Member

Registered: 01/05/02
Posts: 43
Loc: Arvada, Co.
Hi all. I am a piano technician but am recently interested in old players. Iam working on rebuilding a wind motor. I have been very carefull to make everything as air tight as it can be, wich I have been succesful at until I reached the slide valves. Am I expecting to much for them to be completely air tight because they are wood on wood, or is there some trick to get them there. I have managed to get the trunk, pneumatics and the connection of the pneumatics to the trunk air tight,but the slide valves are a different story.

Top
#656007 - 07/26/06 05:35 PM Re: wind motor
Grandpianoman Offline
2000 Post Club Member

Registered: 03/12/05
Posts: 2416
Loc: Portland, Oregon
Dan, you might want to do a search for "player piano repair" and send off an email to one of the people who repair them for a living..... they may give you some help. Also, a good book source would be the Art Reblitz book on player piano repair....you can google that, or use www.bookfinder.com

GP

Top
#656008 - 07/30/06 08:15 PM Re: wind motor
CTPianotech Offline
1000 Post Club Member

Registered: 02/06/06
Posts: 1473
Loc: CT
The two wooden surfaces sliding against eachother need to be sanded flat+smooth. Work your way up to 320, using a VERY FLAT sanding block. Dry graphite powder works extremly well as a lubricant. Greasy lubricants will gum things up in the long run.

Rich
_________________________
Rich Lindahl
Piano Restorations in Central CT
D-C installations, Player-Piano installations/service
Ritmuller/Pearl River

Top
#656009 - 01/31/07 05:55 PM Re: wind motor
David Estey Offline
Full Member

Registered: 08/25/03
Posts: 35
Loc: Passaic NJ
Unless the motor itself has splits or cracks at the point of contact of the slide valves to the wind motor, I would respectfully warn against sanding - because as CT Pianotec just emphasized VERY FLAT - he means VERY FLAT, and if it is off at all, it could make the motor useless.

The slide valves are sucked on to the surface by the power of the bottom action through the govenor (in play) and then full power from the bottom action (in rewind). As long as a generous amount of DRY graphite is present between the slide valves and surface, and there is no warpage or other such inconsistancy,(that WOULD need to be sanded as Rich said) There is no reason to worry about loosing pressure there. If it is not working properly, it is because the slide valves are not regulated to open and close the phewmatics smoothly in the proper sequence.

If you are loosing pressure, the first question is "were the valves, pnewmatics and bottom action rebuilt?" If no, then most of your problem is there.

Is that the issue? loss of pressure?

Dave
_________________________
Registered Piano Technician
Piano Restoration, Sales and Service
www.esteypiano.com

Top
#656010 - 02/15/07 11:13 PM Re: wind motor
fourthgenerationpianorestoration Offline
Full Member

Registered: 01/12/07
Posts: 115
Loc: Brewster Cape Cod Mass
I agree with everyone ,you also should make sure the reroll(govenor) is adjusted right and not leaking, this diverts the (vacume)-pressure from the valve chest and the tracker and pnewmatics, durring reroll.Most books will give diagrams to.I also fold 1000 grit wet/dry sand paper used in auto finishing in half so the ruff surfaces are facing out slide this under the valve slide.Slide with a little presure so the paper rubs the block and then the slide.This should equalize the unevenness between them.If adjusted properly the wind motor doesn't take much vacume to work with plenty of tork.Do use plenty of grafite there and on the cam shaft points.
_________________________
Jeffrey T. Swensen
35 years doing restorations
Tuning,Moving,Actions,Refinishing,
Restringing, Estimates,Players
jeffreyswensen@comcast.net

Top

What's Hot!!
Christmas Header
Christmas Lights at Piano World Headquarters in Maine 2014
-------------------
The December Free Piano Newsletter
-------------------
Forums Rules & Help
-------------------
ADVERTISE
on Piano World

The world's most popular piano web site.
-------------------
PIANO BOOKS
Interesting books about the piano, pianists, piano history, biographies, memoirs and more!
(ad) Yamaha CP Music Rest Promo
Yamaha CP Music Rest Promo
(ad) HAILUN Pianos
Hailun Pianos - Click for More
Ad (Seiler/Knabe)
Knabe Pianos
(125ad) Dampp Chaser
Dampp Chaser Piano Life Saver
(ad) Lindeblad Piano
Lindeblad Piano Restoration
Sheet Music Plus (125)
Sheet Music Plus Featured Sale
New Topics - Multiple Forums
Making a New York Steinway sound like a Hamburg Steinway
by nphase
Yesterday at 10:24 PM
Merry Christmas from Brazil! Feliz Natal!!
by Piano_Brazil
Yesterday at 09:19 PM
Rzewski: De Profundis
by pianoloverus
Yesterday at 09:17 PM
Guide to skills level
by Gemgem
Yesterday at 08:55 PM
piano with willie
by TonyB
Yesterday at 08:25 PM
Forum Stats
77375 Members
42 Forums
160028 Topics
2350005 Posts

Max Online: 15252 @ 03/21/10 11:39 PM
Gift Ideas for Music Lovers!
Find the Perfect Gift for the Music Lovers on your List!
Visit our online store today.

Visit our online store for gifts for music lovers

 
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 | Donate | Link to Us | Classifieds |
| |Contact | Privacy | Legal | About Us | Site Map | Free Newsletter | Press Room |


copyright 1997 - 2014 Piano World ® all rights reserved
No part of this site may be reproduced without prior written permission