[CAUT] Fwd: Does V S Profelt work in reverse?

[reggaepass at aol.com]

Hi Dan,



Good suggestions, all.  Already lubricated the frontrail keypins and bushings, which is probably the main reason the keys work at all, given the close tolerances.  Balance rail bushings and holes are free, plus flange centers are all on the loose side.




Debbie and Chris have reported that sizing down works, so I'll give that a try.




Thanks,




Alan


-----Original Message-----
From: Dan Reed <pianoarts at tx.rr.com>
To: caut at ptg.org
Sent: Mon, 6 Apr 2009 2:37 pm
Subject: Re: [CAUT] Fwd: Does V S Profelt work in reverse?








Test a bushing or two with a thorough coating of Teflon powder..there
can be tremendous pin / bushing cloth drag even with new felt....also,
the usual subjects that may be reducing the keys return...balance rail
bushing fit,  and the balance rail hole, friction at flange pinnings
etc...


Dan Reed

pianoarts at tx.rr.com



On Apr 6, 2009, at 12:17 PM, reggaepass at aol.com wrote:


<excerpt>List,


I am working on a twenty year old Baldwin R which has not been played
much.  The front rail key bushings were in various stages of too
tight.  The key pins are .145", so I initially eased with a .147"
straight broach in a rheostat controlled soldering iron (set to a
setting used successfully on many previous outings).  Barely made any
difference at all.  Stepped it up to the next larger size broach,
.150".  Things improved but just barely.  I was not getting the slight
but positive "knock" from side to side
 that I usually work for, but
the keys were at least coming back up (!).  I don't know if the
bushing cloth is too thick, or too spongy, or if the mortise was
somehow too small to begin with (if that is even a possibility), but I
do not have great hopes for the keys remaining functional for long as
some are already showing signs of needing to be eased again.


So my question is this: Has anyone used V S Profelt with appropriately
sized cauls overnight as an effective fix for bushings that are too
tight?


Thanks,


Alan Eder




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