Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines

The Regular Stuff: Chat, Buy, Sell, Off Topic, etc. => General Discussion - Scale Model Gas Engines - Hit & Miss - Throttle Governed - Non-Compression – etc => Topic started by: Jim on February 17, 2026, 11:08:12 pm

Title: Re: VORTRIXE OKMO B02 Miniature Model Hit & Miss Gasoline Engine
Post by: Jim on February 20, 2026, 11:13:09 pm: Quote from: Nick on February 18, 2026, 03:23:58 pm
It’s very hard not to buy all these new ones… I’m glad you are so we can enjoy them 😂

I may have to save for the N01 Novo…

Do you like the Lister?
Title: Re: VORTRIXE OKMO B02 Miniature Model Hit & Miss Gasoline Engine
Post by: Jim on February 20, 2026, 11:10:51 pm: Gil, mine came from a different supplier Vortrixe and is unsigned.

Raphael, mine was also broken. Do you have a lathe or a friend with a lathe?

In my vid I show my repaired one.....quite a simple repair and the brass looks good.
Title: Re: VORTRIXE OKMO B02 Miniature Model Hit & Miss Gasoline Engine
Post by: Raphael on February 20, 2026, 04:43:56 am: Bonjour,

I have just received mine, which is #3 (!) , unfortunately, the chimney has been broken during the transport, I have to repair it before my first test :(

And I also wait for his next project, N01 Novo ;)
Title: Re: VORTRIXE OKMO B02 Miniature Model Hit & Miss Gasoline Engine
Post by: RedRyder on February 19, 2026, 02:34:51 pm: EDIT:

2 of these were just delivered this afternoon!

#05 and #06

What number is yours, Jim?

------------------------------------

I really like the look of this engine.

It is a quite accurately scaled down Olds hit and miss gas engine.

I have one inbound right now.

Jin has created another amazing piece!

Here are videos of my 1/2 scale models of the Olds. (Both have been traded away)

1/2 Scale Olds Hit & Miss Gas Engine by R. Frederick w Castings by Paul Breisch (https://www.youtube.com/watch?v=7IXFVYo6urw)

Buzz Coil Ignition for 1/2 scale Olds built by William Schaeffer (https://www.youtube.com/watch?v=R8mvPujeg_0)

And....

Here is a video of a full sized Seager Olds Hit and Miss Gas Engine filmed by our friend Will Smith.

https://www.youtube.com/shorts/Vjk1fd2fUZY
Title: Re: VORTRIXE OKMO B02 Miniature Model Hit & Miss Gasoline Engine
Post by: Jim on February 18, 2026, 03:33:32 pm: Thanks all.

I've been informed by Henry that -

"That carb is a scale model of a vintage design. I can't remember the manufacturer offhand, but they are seen on many antique engines in the US. The tiny spring underneath is an automatic choke valve that helps guarantee the engine draws fuel on intake strokes. Quite a delicate accomplishment to replicate at this size".

@JinMachine

Jin how you miniaturised the carburettor on the B02 is simply amazing!

[attachimg=1]

[attachimg=2]
Title: Re: VORTRIXE OKMO B02 Miniature Model Hit & Miss Gasoline Engine
Post by: Nick on February 18, 2026, 03:23:58 pm: It’s very hard not to buy all these new ones… I’m glad you are so we can enjoy them 😂

I may have to save for the N01 Novo…
Title: Re: VORTRIXE OKMO B02 Miniature Model Hit & Miss Gasoline Engine
Post by: Stoker on February 18, 2026, 09:41:01 am: Looks like another real beauty you've got yourself there Jim!!!

I'm still wishing that I'd managed to score myself one of the H73 two-cylinder Holt engines from way back a couple of years ago. Certainly, can't keep up with all these super nice high-end engines that are being made now!
Title: Re: VORTRIXE OKMO B02 Miniature Model Hit & Miss Gasoline Engine
Post by: Fullraceflathead on February 18, 2026, 07:50:29 am: That's a beautiful well made engine I will eventually get 1 myself!!!
Title: VORTRIXE OKMO B02 Miniature Model Hit & Miss Gasoline Engine
Post by: Jim on February 17, 2026, 11:08:12 pm: The absolutely fantastic VORTRIXE OKMO B02 Hit & Miss Gasoline Engine Model Hit & Miss Engine

https://www.youtube.com/watch?v=3S7ts5qvRfw