[AT] OT: Cast iron work on a replica cannon

[Al Jones]

Metric is the work of the devil...…..

Helicoils are wonderful.  Very easy to do and they WORK!

My white demonstrator Super A that I have been tinkering off and on forever
had four badly stripped holes in the torque tube.  Somebody had tapped the
5/8" holes out about 7/8 or so and it was BAD.  There wasn't any threaded
inserts that I could find that would be direct replacements.  A machine
shop friend of mine was nice enough to make a set of inserts, kind of like
the KeenSerts, and install in the torque tube.  Once it's painted I don't
think you'll be able to tell that anything ever happened to it!

Al

On Fri, May 3, 2019 at 3:19 AM Steve W. <swilliams268 at frontier.com> wrote:

> Spencer Yost wrote:
> > Helicoil as others suggested.   Metric bolts give you more options
> > diameter wise, but a metric bolt on an antique canon would probably
> > cause the universe to implode. (-;
> >
> > Sent from my iPhone
> >
> >
> >
> > Spencer Yost
> > On May 1, 2019, at 12:00 PM, Stephen Offiler <soffiler at gmail.com
> > <mailto:soffiler at gmail.com>> wrote:
> >
>
> I would opt for a KeenSert myself. Those are a solid insert that keys
> into place. A helicoil would likely work but the solid insert would be a
> better option as far as sealing the exterior.
>
> --
> Steve W.
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>
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