Yamaha Key Bushing Replacement

Joe And Penny Goss imatunr@srvinet.com
Mon, 7 Nov 2005 14:18:05 -0700


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Hi Terry.
Would it also require replacing the balance rail board?
Joe Goss RPT
Mother Goose Tools
imatunr@srvinet.com
www.mothergoosetools.com
  ----- Original Message -----=20
  From: Farrell=20
  To: Pianotech=20
  Sent: Monday, November 07, 2005 12:57 PM
  Subject: Re: Yamaha Key Bushing Replacement


  Indeed, that is what I would like to do, but as I stated in my =
original post, "I don't see that the supply houses offer plated/steel =
pins in the Yamaha size." Are you aware of a source for plated key pins =
for Yamaha - front rail =3D 0.125-inch and center rail =3D 0.137-inch?

  Terry Farrell
    ----- Original Message -----=20

    =20
    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

      =20
      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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