Hello Friends My Friend Álvaro Cortes from Portugal wrote a cool step by step insctruction about building gas pumps from the twenties. You can find a downloadable PDF File here: http://rosetown.ch/News/Alvaro/Pump01.pdf
I continue to be amazed at the craftsmanship and ingenuity demonstrated by you guys in Z scale. Excellent. And a very well done and documented "How to". Even I could follow that. Thanks. Regards Ed .