[Milsurplus] BC-342 info needed

[James C Whartenby]

Greetings
I have been working on a BC-342N that I picked up a few months ago. 
Replaced the dual 8uF 450 volt cap in the RA-20 with dual 20uF 450 volt
cap with the same form and fit.  I followed the procedure in the
Radiotron Designers Handbook, 4th edition in that I calculated the short
circuit current seen by the rectifier and added series resistance between
the transformer HV secondary and the rectifier plates.  I used two 110
ohm, 1 watt resistors since they were handy.  This reduces the stress on
the 5w4 for peak current, especially at cold start.  Power supply rebuild
went smoothly and a no load test had B+ at about 375 volts.  When wired
into the set, B+ went down to just under 250 volt, just like the
schematic says.  Measured ripple under load is 0.1 volt peak to peak. 
Not bad for a pi type filter.  Other then the work on the RA-20, no other
electrical problems were noted.  Set came to life and the longer it ran,
the better it sounded.  Picked up WWV on 10 MC with no problems using a 5
foot antenna.

My question is about the mechanics of the tuning capacitor gear train.  I
didn't find anything in the TO about it so I am looking for some
guidance.  The fast frequency knob has so much slop in it, it won't move
the gear train.  The veneer works well so it isn't anything internal.  I
pried the cover off of the knob in question and it seems that the
mechanism relies on a friction fit to operate.  So I picked up some thin
felt washers at Lowes but the repair will have to wait till later this
weekend.  Am I on the right track?
Anyone have a spare data plate for a BC-342N?
Regards,
Jim