[TheForge] Repairing pot metal: Is anything reliable?

Thu Apr 1 19:21:00 2004

Mike,

I guess I am the only one around. I googled Webster magneto
  and got quite a few hits. Maybe you can buy a new part?

www.magnetoparts.com/webster.htm

Bob
____

On Thursday, April 1, 2004, at 03:34  PM, Mike wrote:

>
> 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\
> [email protected]                                     /( )\
> http://home.tallships.ca/mspencer/                        ^^-^^
>
> -- 
>
>
> _______________________________________________
> http://mailman.qth.net/mailman/listinfo/theforge
> theforge mail list group photo site is
> http://www.photoaccess.com
> Login:  [email protected]
> password:  anvil
> ___________
>
>

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

[TheForge] Repairing pot metal: Is anything reliable?