Clicking Keys in Cable Nelson spinet

[KeyKat88 at aol.com]

Greetings,
 
          On a used Cable Nelson spinet, the upper treble keys click. Upon 
investigation, it seems to be coming from the rear of the keysticks. I found a 
white powdery substance on the screws that are in the ends of the keys.  I 
think the prevoius tech sprayed teflon on them. I dislike using teflon, Is there 
any other remedy? The small rubber grommets/washers, where the adjusting 
threaded rods are, are not dried out. What to do?
 
Thanks in advance,
Julia Gottshall
Reading, PA



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