Algodoo

it is a pretty good system that apears to work well, but because each cylendar is not connected to each other cylendar it will be imposible to keep the concept and apply force to the ground

Monsterbull:
Dont worry, it should be easy to connect them. Just put gears on each "crankshaft" of the cylinders, and then connect the gears with a thin box. You can look at my scenes to figure out what the heck Im talking about.(look at some of my spring engines + stuff)
And, watch out for discouraging bastards that like to comment on peoples work.
-I would like to use this engine. Its a really neat idea. Send me a PM if you can.

the problem, phunatic, is that the concept here is the self timing
this type of self timing cannot work if they are connected
duh

Self timing as in it "only runs one way at a stable speed".
Try the scene. You can connect them. Ive already made an engine on this concept. This guy has an awesome Idea.

Aha, yeah, it only self times when its running free. I might just let them run until I like the positions of the piston, and then join them with a conecting rod or two. My single cylinder version is powerfull enough when placed on a square that doesnt collide with anything, to move its self. Thanks for the comments though, its really helpfull!

Don´t connect them with a rod. I havn´t made good expierence with this: try small circles like in my answer.

Yeah, checked that out, I'm shocked that people are acctually using this thing.