I'm generally confused, any help?

[firefite]

I just bought this engine, missing parts. I don't know what kind of carburetor will fit nor what the 3 offices are coming out of the top (head) are for 1 carburetor 1/4" pipe threes 1 exhaust & the one in the middle?
also there are 2 offices midsection I think may be for water cooling? HELP

 

[Apprentice707]

Very interesting model, is that an 18 mm plug hole or have I got the scale wrong?

Good luck with the project

B

 

[firefite]

I'm not sure the threaded hole measures 13mm

 

[Cogsy]

From the looks I would say you are correct and the 2 orifices on the cylinder are for cooling. On the top you have intake, exhaust and a spark plug hole. Difficult to tell but possibly an ignition was attached to the end of the cam shaft? Looks like a nice engine.

 

[firefite]

Thanks, Dave
But does anyone know what type of carb will fit?

 

[Hopper]

Carb off an old whipper snipper might get you going.

 

[firefite]

I don't know what a whipper snipper is? can you direct me in the right direction?

 

[Cogsy]

Pretty sure you guys call them a weed whacker or something like that. I'd be trying to determine the rough bore and stroke then building a carb from plans of a similar sized engine, or if you don't want to build, maybe trying a carb off an RC engine. Whichever way you go you're going to need to make an adapter to fit it on your intake.

 

[firefite]

OK, I get ya, Thanks for the help. Dave

 

[littlelocos]

Given the age of the engine, most-likely it would have had a simple "mixer" rather than a carburetor. Here's a link to a 1936 Popular Mechanics engine, The Midget. A mixer is a simple venturi and needle valve similar to the old control line airplane engines.

Here's the link: https://books.google.com/books?id=8dsDAAAAMBAJ&pg=PA626&source=gbs_toc_r&cad=2#v=onepage&q&f=false

Enjoy,
Todd

Todd Snouffer
Littlelocos Model Engineering
www.littlelocos.com