hosted on condor3913
 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

End-of-Summer Fundraising Drive In Progress. Please visit our home page to see this and other announcements:     Thank you. --Jody

MMD > Archives > April 2012 > 2012.04.04 > 05Prev  Next

Ampico Pump Problem
By Paul Manganaro

In response to Mike Walter's question about his pump knocking, refer

The Ampico B pump body is the same as an Ampico A.  Pump noise is
usually from the pump arms or from a feeder hinge.  If the noise is
a low pitched thump it is probably caused by the pump hinge.  Photo
A 23, along with the text, explains how the noise can be caused by
a bad glue joint with the triangular spacer at the hinge end of the
feeder.  This may be the cause of your problem.  If your restorer
did not break apart the old glue joint and re-glue the spacer, the
old glue joint could have broken apart.

Photo A 25, along with the text, shows how to make a tight hinge
before covering the feeder.  A weak hinge with play in it can also
cause a thump.

If the sound is higher pitched then check the pump arms as in photo
A 2.  If your pump arms are misaligned, new bushing cloth will quickly
wear out.  The metal pins on each end of the wooden crank arm must be
parallel to one another to distribute equal force on the bushing cloth.
The fact that the bushing cloth has been replaced twice on your pump
could point to a misalignment problem.

Paul Manganaro

(Message sent Wed 4 Apr 2012, 13:52:02 GMT, from time zone GMT-0400.)

Key Words in Subject:  Ampico, Problem, Pump

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 1995-2023 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