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

  I have one, and as with most all PMR stuff, it was perfect and went together nicely. By the time I built the #7 I had already built a # 2, 3 and 8, so I understood how PMR kits work. I found that you build up these engines in assemblies, making sure every thing fits and functions smoothly, then assemble the assemblies. Here are some pictures of mine showing the way I plumbed the steam and exhaust piping. As you can see, the steam and exhaust piping uses identical nipples and fittings. The only problem is , that with most PMR stuff, they ain't cheap ! The parts I used work for either the pressure or exhaust side. All are 3/16x 40 UST. 1-T, 1-Elbow, 3- 1/2 "nipples, 1-2" nipple, and 1-union.