[Hallicrafters] SX-71 chassis restoration, Naval Jelly question

[Phil Atchley]

Hello all
Well the SX-71 refurb is coming along well.  Since the capacitors haven't
arrived yet I decided to do some "top of the chassis" work.  As there was a
significant amount of rust spots I anticipated this job taking quite some
time to accomplish.  However, working on it with Naval Jelly (#3 for severe
rust), wet/dry paper etc I managed to do about 2/3rds of the chassis top
this evening and while it will definitely be "spotty" with shiny "sanded"
spots etc it is coming out much better than I'd hoped.  I first took the
time to cover all tube sockets with masking tape and trimmed around them
with the Xacto knife to keep the holes clean.

Questions:
1.  After removal of the Naval Jelly I carefully washed the chassis with wet
paper towels then viguoursly scrubbed it with WD-40 soaked paper towels to
make sure all residue is gone.  But I wonder.  Naval Jelly is an acid.  Do I
need to 'neutralize' it with something (like baking soda water etc) or is
the washing/oiling good enough?  At one point I considered "hand brushing"
it with silver or aluminium paint to protect the chassis against further
rust (I don't want to use a "spray" paint around the tuning caps etc)

2.  What is the best way to replace the very funky rubber bushings on the
tuning capacitor and what size grommets were the originals?

73 de Phil  KO6BB
Loving home provided for wayward Boatanchor Receivers
k06bb at elite.net
Merced, Central California
37.18N 120.29W CM97sh



---
Outgoing mail is certified Virus Free.
Checked by AVG anti-virus system (http://www.grisoft.com).
Version: 6.0.345 / Virus Database: 193 - Release Date: 4/9/02