[TenTec] Corsair II PTO Backlash?

[Steve Berg]

I had the factory rebuild the PTO units in both the Corsair II radio and 
in the external VFO.  The internal PTO has smoothed up nicely, but the 
one in the external VFO is still stiff and has a noticeable amount of 
backlash.  When tuning the receiver, the external PTO has a dead spot in 
rotation when tuning back and forth on a signal.  It is slowly getting 
better, but it is still stiff and has this slop in it.  Is there any way 
to fix this, or is this a case where the rebuild is not working properly?

Tnx!

Steve WA9JML