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Author Topic: Monahan Heron Vertical Steam Plant  (Read 4030 times)

Mege66

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Monahan Heron Vertical Steam Plant
« on: March 03, 2025, 07:42:37 pm »

There has been a while since the last message related to Monahan Steam Models has been posted, so I decided to start a new one.
http://www.youtube.com/watch?v=o2OjALP0XGk

The steam plant has recently been run for the first time since it was produced and runs now excellently.
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SteamboatPhil

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Re: Monahan Heron Vertical Steam Plant
« Reply #1 on: March 04, 2025, 08:47:12 am »

That is a really nice plant and set up, and not a wisp of a steam leak anywhere, brilliant  :-))
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Steamed up all the time

1967Brutus

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Re: Monahan Heron Vertical Steam Plant
« Reply #2 on: March 14, 2025, 07:33:30 am »

That indeed is a VERY smooth running engine!

What puzzled me a bit, is that I saw oiler cups on the shaft of the reversing mechanism, but NOT on the caps of the main bearings???

I thought that a bit weird?
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If you do without observing, you won't learn a thing.
If you observe without doing, you'll never know if what you learned was true.

Mege66

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Re: Monahan Heron Vertical Steam Plant
« Reply #3 on: March 24, 2025, 06:29:58 pm »

Weird or not, that’s the question.


Well, a little bit, maybe, but it makes the whole thing look more attractive like cosmetics do.

The main bearings have all ball bearings inside. So a lubricator cup would not help oiling these ball bearings due to the lack of a radial hole allowing the oil to access the cage with the balls.

The cups on the reverser on the reversing shaft are super economic on the other side: just a drop of oil every few years keep it moving for years.

A little bit of cosmetic details makes everything looking a little bit better, doesn‘t it?
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1967Brutus

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Re: Monahan Heron Vertical Steam Plant
« Reply #4 on: March 25, 2025, 12:35:15 pm »


The main bearings have all ball bearings inside. So a lubricator cup would not help

Ah... Was not aware of that...
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If you do without observing, you won't learn a thing.
If you observe without doing, you'll never know if what you learned was true.
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