Engines > Restoration of Model Engines

Help needed to identify vert steam engine

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Roger B:
An excellent restoration Michael  :praise2:

I remember reading about the bent glass tube water gauges in one of Henry Greenly's books

vtsteam:

--- Quote from: Michael S. on December 20, 2023, 06:53:37 pm ---When my neighbor bought the neighboring property some time ago and demolished the barn, this little steam engine appeared. It has to be a model from Falk. He gave it to me to restore. The smoke chamber was heavily oxidized and had many holes. I built a new smokebox and redesigned some parts. I think every hopeless case can be saved. Even if it looks bad at first.

Greetings Michael

--- End quote ---

That looks really fine, Michael.! :ThumbsUp:

How did you get the sight glass guard's screws out?

They look about as bad as mine did, before I scraped the old crud off.

Here is the boiler with top fittings all removed, and the main engine bracket and assemblies removed. I cleaned the boiler externally and oiled it lightly to halt any surface rusting. This is the back of the boiler, where it had flamed up in and above the firebox vent area. Now with discoloration cleaned off and the sheet metal oiled it really doesn't look bad at all.

The upper boiler section looks great for something this age (110 yrs+ ?). The bluing is intact. I do know it had been neglected  in a damp location for years. I think it's lucky it looks as good as it does.

vtsteam:
I decided to take the screws out, no matter what.

I hit them with WD40 inside the boiler and out. I had done this yesterday, too. Then I applied a hot soldering iron to each screw head in turn, just to heat them temporarily without using a flame on the boiler surface.

Then I tried taking them out. Results: 1 top screw came out properly, 1 bottom screw split the slotted head, 1 bottom screw had too poor a slot to turn with a screwdriver, and one top screw head broke off.

Because both top screws were gone, I was able to bend the top of the guard down, and remove the sight glass intact. I still have to remove the bottom damaged screws. The screws measure 2.36mm in diameter(?)

vtsteam:
A running Carette engine on YouTube. This one has a round base, separate engine and water pump. But the water pump itself is identical, as are most of the engine components.

One really interesting feature shared between these engines is the cylinder's slide valve. There is no usual steam chest. Instead there is a slide valve with a single ball bearing against the back, held in place by an adjustable sheet metal clamp. Two thumbscrews apply pressure to the clamp, ball and valve.

I'm wondering if this valve design was unique to Carette engines

.http://www.youtube.com/watch?v=hwN_O7bJlME

Michael S.:
I think the screws could be replaced with M 2.5 screws.
This variant of the slider is often seen on these models.



Michael

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