S&S: key-frame return spring

[Don]

Hi Mark,

Sometimes talc will work better than powdered telfon. Metal to wood
"shrieks" are certain annoying. Something else that does work is a thin
piece of felt. It does wear thru eventually. 

You might also consider weakening the return spring a little bit. 

At 08:54 PM 11/21/2000 -0600, you wrote:
>Hello all,
>
>Today I managed to find the elusive source of shift-pedal squeeks and groans
>in a B, and with careful effort and attention actually made it worse!
>
>Once I had determined the cause (spring against (wooden) key frame), I
>carefully sanded the side smooth, applied a generous coat of DAG, and
>burnished with a cloth.
>
>It worked instantly, and lasted about 3 minutes!  Once the DAG was well
>burnished, it began to groan as before, but louder!  And now, in addition to
>the fundamental, there were additional squeeks a major 3rd above and major
>2nd below!?
>
>At a loss, I worked teflon powder into the graphite and with vigorous use,
>the noise has not returned. Tefloning and testing the two contact points of
>the spring seperately helped verify the source, as one "note" of the
>non-musical "interval" disappeared with the first treatment, then the
>remaining two.
>
>I fear this remedy will not last though, so what is your favourite tried &
>true, long-lasting, never-fail, method?
>
>Thanks for your suggestions,
>
>Mark Cramer,
>Brandon University
>
>
>
>

Regards,
Don Rose, B.Mus., A.M.U.S., A.MUS., R.M.T., R.P.T.

Tuner for the Saskatchewan Centre of the Arts

drose@dlcwest.com
http://donrose.xoasis.com/

3004 Grant Rd.
REGINA, SK
S4S 5G7
306-352-3620 or 1-888-29t-uner