Channel: Massee Media

Category: Science & Technology

Tags: gaugemodelsallenstephensonlocomotivechloe2.5scalesteamlive7.5gear

Description: This is a quick followup to the original running on air video (at youtube.com/watch?v=50oMMslwXDs ) which showed the bare chassis running on a treadmill. I have since integrated the treadmill into the test track so you can roll the engine onto it. (you can no longer pick up the engine, it weighs about 250 - 300 lbs, which is light for a live steamer...) While you can't see the stephenson valve gear easily any longer, you can see on this side of the engine the valve-rod driven oil pump. On the other side is a crosshead driven water pump. The occasion for running is having re-assembled the steam dome and needing to test the gaskets and other things for leaks. The hiss at the very beginning of the video is a leaky blowdown valve. This engine now runs and there is a video of its first run on steam here: youtube.com/watch?v=DNQM4tj2jDQ better video to come later.