[TheForge] Repairing pot metal: Is *anything* reliable?

[Mike]

So I have the Webster magneto from my single-banger apart.  The body
is pot metal cast around two pieces of laminated magnetic core similar
to the core of a transformer.  The pot metal is cracked in several
places.  The whole thing probably would just have disintegrated were
it not cast around the steel.  But the steel is holding it together
and I can press everything back pretty much into proper alignment with
a mare's nest of C-clamps.

Is there anything that I can flow into the cracks that will have a lot
of strength and hold it together?  Some new low-temp solder-like alloy
I haven't heard of?  Some kind of resin?

I assume I'll have to tank it in various things to get the grease out
of the cracks -- lye, solvents, maybe even electrolytic cleaning or
acid -- and repeated blow-out with air.  But once the cracks are as
clean as I can get them, something has to flow readily into lots of
very narrow spaces and stick like a barnacle.  Has to have tensile
strength because the springs will tend to pull the cracks open again.

And I don't even know exactly what the "pot metal" is.

Any thoughts?  Especially, any good experience?

- Mike

[BTW, the engine runs fine with a spark coil and suitable igniter and
one hand-forged bit to hold the pawl that trips the igniter.  I just
stubbornly want the mag to work.]

-- 
Michael Spencer                  Nova Scotia, Canada       .~. 
                                                           /V\ 
mspencer@tallships.ca                                     /( )\
http://home.tallships.ca/mspencer/                        ^^-^^

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