HitnMiss Engine with Vapor Fuel Tank

Made a new vapor fuel tank from a glass pimento jar. Also added a threaded collar which adjusts the amount of air that gets mixed with fuel vapor.

Category:

Science & Technology

Tags:

• model
• engine
• hitnmiss
• vapor
• fuel
• carburetor

[mr4963]

Is there a needle valve at the intake manifold, or does the vapour enter the intake manifold at the bore of the fuel line ?

[cffellows]

@mr4963 There's no needle valve anywhere. There is simply a hole into the side of the manifold with a threaded collar that can be screwed or unscrewed to cover more or less of the hole. The fuel is already vaporized in the jar.

[mr4963]

@mr4963 Thanks for your quick reply, I will have a go and fit the system on my Hit and Miss engine, your engine runs and starts good with such a simple system.

[elemint7]

@cffellows can you give me detailed instruction on how to build this engine because i cant think of any ideas

[cffellows]

@Skoda130 - Yes, originally, although I made some improvements in his design. There are numerous other examples of the vapor carburetors used on model engines from the earlier 1900's.

[Skoda130]

@cffellows Did you find the idea for the carburettor at "HEETGAS"? :-)

[cffellows]

The points & condenser were purchased already made.

[dragracing3508]

@nitrorcman108 agreed

[dragracing3508]

@cffellows you made the points and condencer setup?

[dragracing3508]

@nitrorcman108 haha wats up lol.....i was scrolling and found you haha thats funny