Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines

The SV weight shown in your first photos is a fishing sinker!

That is true and it wasn't up for the task either LOL!  Nate had to put on a metal funnel on the lever to keep it from popping.  He has ordered a ball from eBay.  Sadly the other type seems to be all gone (I actually got the last one a David Roenigk had to sell for my Big Giant).