Mechanical Music Digest  Archives
You Are Not Logged In Login/Get New Account
Please Log In. Accounts are free!
Logged In users are granted additional features including a more current version of the Archives and a simplified process for submitting articles.
Home Archives Calendar Gallery Store Links Info
MMD > Archives > September 2005 > 2005.09.27 > 04Prev  Next


Model A Ampico Unit Valves & Leaks
By D. L. Bullock

To Bruce Clark's excellent diagnosis of Ampico Leaks, I must add the
glued-in block at the ends of each deck.  There is a block of wood the
exact size and shape of the air channel down the center of each deck.
This is glued in and shellacked over at the factory.  You will notice
that the seam line around this block is usually black, indicating
leakage and sucking in dirt for years.  Using the stethoscope you can
hear the large amount of leakage coming through these loose glue joints.

We sand them down to wood and always cover the ends of the decks with
motor cloth or pneumatic cloth.  This prevents a future problem and
cures the problem if it is already happening.  If the stack is already
in the piano and you don't plan to take it out, sanding off the shellac
is not absolutely necessary if you use PVC glue.

D.L. Bullock
www.pianoworld.us


(Message sent Wed 28 Sep 2005, 01:46:30 GMT, from time zone GMT-0700.)

Key Words in Subject:  Ampico, Leaks, Model, Unit, Valves

Home    Archives    Calendar    Gallery    Store    Links    Info   


Enter text below to search the MMD Website with Google



CONTACT FORM: Click HERE to write to the editor, or to post a message about Mechanical Musical Instruments to the MMD

Unless otherwise noted, all opinions are those of the individual authors and may not represent those of the editors. Compilation copyright 1995-2024 by Jody Kravitz.

Please read our Republication Policy before copying information from or creating links to this web site.

Click HERE to contact the webmaster regarding problems with the website.

Please support publication of the MMD by donating online

Please Support Publication of the MMD with your Generous Donation

Pay via PayPal

No PayPal account required

                                     
Translate This Page