Help, help,  I've just had the hammer action rebuilt in my 1928
Fischer-Ampico grand.  I find now that the hammer-rail will not lift
evenly.  In this late-A mechanism, the lift point is at the first scale
break on the bass end (between the strings on the bass bridge and those
on the tenor) rather than in the middle as in earlier Ampico grand
installations.

With this rather poor design the geometry is such that now the bass
hammers lift too high and the extreme treble hammers lift about a
millimeter only, an unsatisfactory situation.

I suspect, since I have determined that all centers are free and all
related friction eliminated, that the new treble hammers weigh more
than did the tired old originals, which lifted fairly evenly.  The
lift-rail assembly and its associated pivots and flanges are secure and
tightly screwed together.

I suspect too that this is not an unusual problem.  Has anyone any
ideas as to how I might effect a cure?

Thanks in advance for any suggestions,

Dean Randall,
still in the rain-soaked Northwest