Sizing

[jolly roger]

Hi Avery,
              Warm the action up with either a couple of damp chaser rods
and a blanket over it, for several hrs, and recheck results before doing
any thing drastic.
If the piano was fine before the flood, and the humidity system will soon
be running,  I think that I would do no more than what I suggested.  You
could end up with loose pins by sizing when things get back to normal.
Lose pins will result in some tone loss, I'm sure you don't want to head in
that direction.
Another quick test is to remove one hammer and wippen assembly and warm
with a hair drier, and confirm diagnosis.
The key sticks being soft wood, may have swollen quite a bit, so it would
be well worth, removing the stack and checking the bushings and BR holes.
I would opt for waiting before doing anything much more than that.

Regards Roger 



At 10:36 AM 9/7/01 -0500, you wrote:
>List,
>
>I'm sure most of you know about the flood and humidity problems
>here in Houston. Because of what I assume are humidity related
>problems, our newest 'D' (app. 3 yrs. old) is exhibiting some
>excess friction in some of the hammer flanges and may also be
>in the wippen flanges (I haven't checked that yet.)
>
>Since I really hate to go in and do a bunch of repinning because
>of what might be changing anyway in the near future, would:
>
>    1. Sizing with alcohol/water be a viable option? If so, what
>proportions? Is this probably my best long-term solution?
>    2. Should I try to wait a while longer and see if it will ease
>up any since our humidity control system is back working again
>(for app. 2-3 weeks now).
>    3. Or should I just go ahead and do the repinning and get it
>over with?
>
>I've never done much sizing of flange bushings, so I'd appreciate
>some advice and/or other solutions. Our first concert of the season
>is tonight and the primary pianist has decided to use the rebuilt
>'D' instead of the one he normally uses.
>
>Interestingly, the rebuilt one, which has all German Renner parts,
>has had none of this kind of problem. Even back before they got our
>humidity control system going again.
>
>Thanks for any help/advice you can give me.
>
>Avery
>