hammer-shank glue joint

[Bob Hull]

Today I looked at a piano that has received new
hammers from another shop because the owner asked me
to come and evaluate it.  They are disappointed with
the lack of power that the piano has.  

It really needs a quality complete rebuilding job but,
that's a very unlikely option for this owner.  One of
the major problems is the very soft hammers.  Another
is the weak glue joint between the hammer and the
shank.  There is no glue collar and you cam feel the
looseness of the joint as you wiggle it.  

I thought about squirting the area with thin CA.  I
don't know if that will really penetrate enough or if
the hammer needs to come off.  I could also add a
little glue collar for reinforcement.  This may
eliminate the wiggle but, would it add the stiffness
needed on the inside where the two largest surfaces
connect? 

Suggestions?

Bob Hull


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