[SEL] Sticking lead to cast iron

[Richard Strobel]

Well Curt and gang,,,time to spill my gutz.  This is a crank off the Wachs 
steam engine.  The steam list is all but dead with only a few posts a year.

  I didn't get a before picture but with a little imagination you'll get my 
point.  Hard to see but there's actually two studs w/nuts holding the 
counterweight on.  This picture should tell it all.  The nuts were leaded in 
plus an addtional layer which covered the end of the counterweight...I would 
swag an eighth inch or so.

  Thanks again for all the replies and will do some experimenting and look 
for some copper Sulf8 or Sulph8...lol.

Here's the pix and you can do previous and next photo:

http://home-and-garden.webshots.com/photo/2425581950039077051oAzvik

  It could very well be babbitt..will try the ring test.  I would imagine 
the whatever was used to add weight for balancing and not lock the nuts.

Take Care,
RickinMt.

>
>  Rick,
> If you don't find any on your side of the great plains let me know as that
> is one of the chemical we make over in skunk works (the chemcical plant).
> I could send you some.
> FWIW I had good luck tinning and bonding the Babbitt to cast parts using
> the tinning flux. Instead of lead to hold your weights in place could you
> use the Babbitt tinning flux and just pour Babbitt instead?
> I'm curious, why the need to assure tinning? Doesn't the white metal
> simply occupy space to lock the parts together taking advantage of
> negative draft?
> Certainly the OEM didn't rely on tinning to assure the parts stayed 
> together?
> You've got my curiosity going on this. Could you post a few pictures?
> Curt Holland
>
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