[R-390] R390A restoration.. x 2

[stevejxl at optonline.net]

Thanks Paul!

Yes, much of the #4 hardware is either mangled, or severely discolored.
I do try to re-use what I can, although some of the hardware I pulled off was way too discolored.

Funny you should mention a tumbler.. I own a small one for my CNC work and it is invaluable. Between the tumbler and my ultrasonic cleaner, there is not much I cannot handle.. :)


Steve


----- Original Message -----
From: Paul Anderson 
Date: Wednesday, June 10, 2009 11:21 am
Subject: Re: [R-390] R390A restoration.. x 2
To: Optonline 
Cc: r-390 at mailman.qth.net

> Steve,
> 
> On Mon, Jun 8, 2009 at 10:03 PM, Optonline 
> wrote:
> > Hi All!
> >
> >
> > I'm working on a Stainless order, it's easier to just replace 
> the cruddy
> > nuts, bolts, and washers then rack up the fingers polishing 4-
> 40 screws!
> 
> There are several easy approaches to doing this - if they are just
> cruddy, the stainless will clean right up.
> 
> 1) a reloader will have a walnut shell vibrating tumbler that would
> clean them right up.
> 
> 2) the deposits are either a varnish of old smoke goo, which some
> solvents will readily remove, or a deposit of other
> dirt/gunk/corrosion... a pass with several solvents should clean it
> off - put the hardware in a tin can, fill with something you 
> want to
> try, shake then see what it does. End up with using a bathroom rust
> and stain remover, and it should cover all the possible stuff on it...
> 
> 3) if the hardware is physically mangled, then by all means 
> replace it
> 
> The stainless steel cleans up really really well, and is a lot cheaper
> to do it this way. I didn't mention it before because I thought it
> was chewed up.
> 
> Paul
> 
> >
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