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

[Mark Bell]

I've just completed restoration on my HQ-170.  It was completely
covered with light rust.   I used Klean-Strip Rust Remover available
at Wal-Mart.  This is washed off with water.  Afterwards,  I polished
the chassis with "Never Dull".     I was very pleased with the results.

The problem with using a Dremel tool with brushes is that it
will scratch the chassis.

73 Mark K3ZX

----- Original Message -----
From: "Bob Raley" <raley at emptychair.net>
To: "Hallicrafters" <hallicrafters at mailman.qth.net>; "Phil Atchley"
<k06bb at elite.net>
Sent: Thursday, April 11, 2002 6:46 PM
Subject: Re: [Hallicrafters] SX-71 chassis restoration, Naval Jelly question


> Phil would you mind sharing anything you get in response to your
questions.
> I'm going through the same thing right now with an SX-100.  I need some
new
> ideas too.  I finished up an HT-32 last year with the same type of rust
> problems too.  I used stainless steel brushes--Dremel tool with wire
brushes
> installed---sand paper as you mentioned and naval jelly also. Q-tips come
in
> handy for applying the naval jelly and for clean-up too.   I used mineral
> spirits to neutralize the naval jelly.  I then masked everything off,  I
> didn't want paint on, and then used Rustoleum brand aluminum spray paint.
> The blue colored masking tape seems to work well because it's designed to
> come off readily and not leave any tape residue.  It came out looking
pretty
> good.  These are the things that worked for me but I'm sure others in the
> group want to know what you learned.
> Good luck with the project.............Bob Raley kg5r
>
> ----- Original Message -----
> From: "Phil Atchley" <k06bb at elite.net>
> To: <hallicrafters at mailman.qth.net>
> Sent: Wednesday, April 10, 2002 10:44 PM
> Subject: [Hallicrafters] SX-71 chassis restoration, Naval Jelly question
>
>
> > 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
> >
> >
> >
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