I like the concept. That’s exactly what this engine needs. I would have responded sooner, but I was asked to play in a pit orchestra for a show opening this weekend. The proceeds of course go directly into my projects.
Good point. Did not consider the speed imbalance due to pumping. I have some nice indexing tools for cutting gears. Old clocks can wind up storing the power of a garage door spring. I’ve had to make a gear or two.
Here is the engine info.
Bore: 1.2”
Stroke: 2”
Eccentric stroke: .5” (easy enough to change)
Compound running configuration.
It runs smoothly as a compound engine. Speeds over 300 rpm starts to demonstrate the need for counter balancing. At about 250 rpm, it seems very happy and I can watch...
As a compound engine the boiler seems to keep up although it still requires a lot of water pumping to keep up. You can definitely see a pressure drop as water is added. I will run it with the boiler at full fire next time and alternate compound and non-compound configuration. I saw an...
Getting ready to play the 1812 overture and show tunes for the 4th. I’m also spending some quality time with mill gib adjustment and back lash. I was told that the speedometer in the Tollycraft has priority over the mill.
I now have two sets of pipes. In a compound configuration, it runs better on steam. It definitely has more power in non-compound mode. Time to work on the boiler.
Rear piston contacts the head on back stroke. The burner jet is .25 and I was using 5lbs of pressure. The first engine has a 1.5” bore and a 1.5” stroke and the boiler seems to keep up. This was the thought when I decided to build a larger boiler. I am also thinking it needs to be a...
This is the very first time it has seen steam. I need to tighten up the gland packings. Needs a boiler feed pump and a water preheater as pointed out. You have to watch the water level. Back to the larger boiler project.