Sizing centers with alcohol & water

[John Formsma]

List,

Any thoughts on the following?

Is the alcohol/water sizing method for centers most effective on newer
centers that haven't had several seasons of changes?
With the relatively few times I've tried sizing with alcohol and water, it
hasn't worked so well.  The bushings were either so tight that that kind of
sizing wasn't appropriate, or (as it turned out) corrosion was the main
friction culprit. And it has been mainly on older pianos that I've tried it.
 Though I did have some success with combining the solution with heat from a
hair dryer.

If a 10%-30% water solution doesn't work, will it help to go to a higher
percentage of water?  Or is it that the alcohol/water sizing method just
won't work at all if it doesn't work at 30%?  What's the practical upper
limit?

I will be working this week on a Baldwin vertical action with friction
problems.  I thought I'd give alcohol/water a try first before repinning.

Is methanol significantly different than ethanol?  (For this purpose, of
course. I can already hear the drinking jokes coming. <G>)

-- 
JF
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