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I think this way is a bad way, because you have no experience at all. A good idea is to machine the engine exactly according to a succesfully established plan. If you got it running perfektly (compression, carburetion, ignition, everything in perfekt order) then convert it to your own concept...

That's a ten minute job but as long as you don't enter your location in your profile, nobody will make the nut for a crate of beer...

It's a small ratchet that allows you to apply the same amount of pressure on the workpiece every time.

Well one of the real big problems is that lots of people are too stupid to choose suitable picture size for the upload, compression ratios and picture resolutions for their application. This generates lots of unnecessary expense, making free image hosting difficult on the long therm. Hosting...

Yes, there is a reason. This groove allows for cheaper manufacturing.

@Frank: You might want to have a look at the German book "Zima - Ungewöhnliche Motoren" (Vogel Buchverlag) translates to "ununsual engines" by Professor Zima (rip). He collected information, pictures and scetches of many unusual internal combustion engines and does some analysis on why most of...

On many forums your mail-adress is automatically checked upon registration. If it's on the blacklist e.g. because your mail-account was hacked and used for sending spam or using spambots on forums, they won't let you in. You probably won't notice that your mail-account was hijacked (or still...

There is only one powerstroke within four strokes of a four cycle engine, so power is delivered with high cyclic irregularity. To compensate for that, you have to increase the gyrating mass. Momentum is "stored" and will be "released" between the powerstrokes to smoothen the irregularity. So...

I don't know what plans you bought, but everything related to volume will grow (or shrink) with different mathematical power. Such as mass, inertia, flow, and so on. eg when simply scaling a model engine, the result won't be as similar as expected. This influences directly compression ratio...

Its a 2 cycle with very short stroke and porting for high revs on the circumference. http://i00.i.aliimg.com/wsphoto/v1/326330542/30-5CC-four-point-fixed-engine-parts-set-for-1-5-baja-HPI-KM-RV-5B.jpg Converting this to very long stroke and 4 cycle will be a bigger challenge than making a new one.

Hello, My brother has epilepsy since childhood, caused on rare occasions by activity of scarred brain tissue after a virus infection of the brain. He takes drugs agains it, but seizures still occur about 4-5times a year (eg. when intestinal infections interfere with the absorption of the...

The slow response is more likely a carb issue. When you open throttle, the rate of airflow changes very quickly. Due to fluid viscosity, the amount of fuel drawn through the nozzle orifice changes much slower than the rate of airflow. So the mixture gets lean for a short period of time, which...

Suggestion for a layout: carb-chamber-runners Connect all intake-port runners to one central chamber, make sure all runners have the same lenght. Make sure the chamber has at least the volume of all runners combined. This way you can assume that the partial pressure in the chamber is...

Well I will start one last try to convince you of the great benefits of a single caburetor design. But to add further information, I will try answer your question first ;) The carb size is not linked directly to total engine or cylinder displacement. The size of the carb is determined by...

This is the Engine pictured in the first post: http://www.youtube.com/watch?v=nnRiq8nTkic

If you got questions on cam lobes, syncronizing eight carburetors will be a giant challenge for you. If one of your eight carburetors runs on too lean mixture, the piston will get hot, expand, seize and destroy half of your engine including the crankshaft. In favor of simplicity, i strongly...

Your rotary vane blower will not work properly, the axis must be off center with the case. Look this picture, you can see clearly how it should work: http://www.en-found.com/rv%20blower.htm Google translator: Sizin döner kanatlı fan düzgün çalışmaz, eksen dava ile merkezi...

die-sinking cutters are probably what you are looking for.

Use a small blowtorch or heat gun to soften the tooth area of thermoplasitics and to create a better finish on the plastic teeth' surface.

Use detergent for manual dishwashing with some water and ethanol added. It works fine for aluminium, provides lots of cooling and proper lubrication... and easy waste disposal without any problems as it isn't special waste. Plus lovely scent :)