http://forum.talkingmachine.info/viewtopic.php?f=7&t=5543 Hi Ron, It is
muriatic acid. Steve
> From: lhera...@bu.edu
> To: phono-l@oldcrank.org
> Date: Wed, 6 Jul 2011 14:01:27 -0400
> Subject: Re: [Phono-L] frozen Edison Home pot metal bearing
>
> I read somewhere about a technique involving sulfuric acid dripped into the
> oil hole to dissolve the pot metal. The acid is not supposed to bother
> paint or cast iron if I remember correctly.
>
> Ron L
>
> -----Original Message-----
> From: phono-l-boun...@oldcrank.org [mailto:phono-l-boun...@oldcrank.org] On
> Behalf Of mdsor...@aol.com
> Sent: Wednesday, July 06, 2011 2:16 AM
> To: phono-l@oldcrank.org
> Subject: [Phono-L] frozen Edison Home pot metal bearing
>
>
> Here is another issue I am dealing with again. Who has the best idea for
> freeing up a frozen bearing on an Edison Home Model D without messing up the
> mandrel, the mandrel shaft, gearing, etc.? I have asked this before, and
> have received all sorts of answers--from heating with a blow torch to
> freezing in the freezer. I have a tough one right now that I don't want to
> mess up. How about it friends? Who can come up with the best way to get
> that bearing out? Thanks for any suggestions!
>
> Mike Sorter
> Riverside, CA
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