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Michael S.:
Hello everyone,

Last week, a steam engine was for sale on eBay. I liked it. At first, I thought it was a Bischoff No. 173. The main frame looks like this. The cylinder, actually, doesn't.

When I had it on my workbench, I immediately disassembled everything. The main frame is slightly larger than the Bischoff No. 173.
The cylinder has the steam exhaust directly on the cylinder. I've never seen it like that before. The cylinder has to be turned with the exhaust facing down. I don't like the slide valve box. The holes for the box are unevenly spaced. There's a flaw in the cast iron.

I'll see how I can fix it. I don't have any idea yet.

The parts that are OK have already been primed.

The second crankshaft bearing is an aluminum block with a ball bearing.

I want to build a new bearing.

So, another great job for the next weekends.

Michael

crueby:
Interesting how  they put the exhaust, they went to a lot of trouble to cast it that way. Nice looking proportions  overall.

redhouseluv:
That definitley has potential, I like chunky cylinder. Very strange how the valve chest holes are positioned, but I can see from your last picture the issue - JB Weld?

Michael S.:
Yes, I would like the four threaded bolts to be arranged symmetrically. The cylinder is missing some "meat," and glue might work. Maybe an additional metal plate.

Michael

Michael S.:
Unfortunately, I can not only use the base of an original Bischoff steam engine. I once made a wooden cast model, and a friend cast it in aluminum at the University of Mechanical Engineering. Unfortunately, I wasn't there. I would have liked to see how it was done. But it must have worked.

Michael

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