Yamaha Key Bushing Replacement

[Joe And Penny Goss]

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Hi Terry,
If you are going to rebush, why not also repin with the better pins, and =
use leather the correct size. Then you will not have the contamination =
problem with the Ballistol.
Joe Goss RPT
Mother Goose Tools
imatunr@srvinet.com
www.mothergoosetools.com
  ----- Original Message -----=20
  From: Farrell=20
  To: pianotech@ptg.org=20
  Sent: Monday, November 07, 2005 8:08 AM
  Subject: Yamaha Key Bushing Replacement


  I've got a bunch of Yamaha C3s from cruise ships to do key bushings =
on. Many of these piano get fairly rough use 7 days per week (piano bar =
and all that). So we're searching for a better way. Some of these get =
worn out in a matter of several months.

  We've considered leather bushings, but my understanding is that there =
can be a chemical reaction between the leather and the Yamaha brass key =
pins. I don't see that the supply houses offer plated/steel pins in the =
Yamaha size.

  So maybe we need to use cloth key bushings. I heard from some that =
Renner has the most durable key bushing cloth. Any opinions on that?

  What about lubrication on the cloth bushing material to minimize =
friction and increase longevity? Microfine Teflon powder? But doesn't =
that just sort of fall out quickly? What about some sort of graphite? A =
synthetic grease, maybe like VJ lube? Anyone ever try anything like =
that? Any other ideas (constructive)?

  Maybe I should just stand in back of the piano player with a whip or a =
well proportioned maple 2 x 4?

  Thanks.

  Terry Farrell


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