[Boatanchors] my old VOM - anything I can do ?

[Emanuele Girlando (IW1DHI)]

I am trying to revive my first 25 years old VOM (CHINAGLIA model Cortina
Major/made in Italy almost unknown in USA - very nice and with great
performance).
It seems to work properly but the needle doesn't stay at zero when I put the
instrument in vertical position.
Rather it moves to the middle scale position under the effect of weight of
the lower (heavier) part of the needle. I am sure, it didn't behaved like
that before.
Does it mean it has lost magnetic field? or spring strength?
Anything I can do?
Tks in advance.
ciao

Emanuele Girlando (IW1DHI)
http://space.tin.it/clubnet/egirland/
mirror at
http://www.qsl.net/iw1dhi/