Summary of Insulating a Steam Engine Cylinder! Big Steam Engine Build, Part 15

00:00:00 - 00:25:00

In the video, the builder demonstrates how to insulate a steam engine cylinder. First, the brass and machined surface of the cylinder are aligned and the edges are lined up. Next, the builder pours in the steam and uses a mandrel to turn down a shouldered section. After that, the builder drills and taps the holes needed for the bolt and screws the cylinder casting to the drill guide. Finally, the builder uses a gauge pin to align the spindle on each hole and finishes the seam with a Scotch-Brite wheel and buffing wheel.

• 00:00:00 In this video, Quinn shows how to insulate a steam engine cylinder using a paper template and spray adhesive. She finds that the location of the hole is not ideal, so she makes another piece of paper and tries again. This time, the hole is in the middle of a large flat area, and the boss is aligned perfectly with the edge of the cylinder. She also installs the steam drain valves, using a sacrificial fixture plate made of MDF.
• 00:05:00 The video demonstrates how to insulate a steam engine cylinder by lining it up with a reference line, making a hole, and then tightening the clamps. The final step is to make the dialing in process.
• 00:10:00 The YouTube video demonstrates how to insulate a steam engine cylinder using a slip roll tool and hand wrapping. The cylinder was initially slipping on the gears, but was protected from breaking by the gear slipping. The video then shows how to anneal brass and remove the paper template, before tightening the bolts and wrapping the cylinder around the cast iron. If done correctly, the cylinder will be straight and square.
• 00:15:00 The video shows the builder insulating a steam engine cylinder. The builder aligns the brass and machined surface of the cylinder casting and makes sure the edges are lined up before starting to pour the steam. The builder uses a mandrel to turn down a shouldered section to allow for the cylinder to be clamped on the mill. The builder drills and taps the holes needed for the bolt and screws the cylinder casting to the drill guide.
• 00:20:00 In this video, the builder finishes installing bolts into a steam engine cylinder, aligns and tightens them, drills clearance holes, centers drills, and taps them. He then uses a gauge pin to align the spindle on each hole, and finishes the seam with a Scotch-Brite wheel and buffing wheel.
• 00:25:00 The author makes a buffing wheel out of a stitched wheel and uses it to polish brass parts. The parts are very dangerous, so be careful. The brass parts will tarnish no matter what the author does, so this was a futile endeavor.