[modeleng] Re: Lapping, pumps, etc was

 Jesse,
      According to my tables SAE40 is Cu85 Pb5 Sn5 Zn5, or precisley what
Alan quoted for typical gunmetal.  So there you go.  To add anguish to
injury, as much as I dislike gunmetal, I have a full set of castings for a
fine large scale Corliss mill engine every man & boy of which is in red
brass.  :-( Regards,
Harry

Sure and you will paint the engine anyway Harry, so the colour makes little 
difference.  One of the reasons I wanted to paint the model Bernays engine I 
just finished was because of the several shades of brass/bronze I used in 
its construction.  As it happened, the most obnoxiously red piece was a 
handwheel for reversing and a tall column for the crosshead guide.  As it 
turned out, I discarded the handwheel because I realized the engine would 
probably not run in reverse and I used "gold" paint to cover the colour of 
the crosshead guide.

Jesse Livingston in rainy Troy Tennessee

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