Each stroke angle(In the vibr.damper)

[Fernando Mendes]

On the engine with 4 cylinders we have an angle of 180º for each stroke,because 720º/4 =180º.On the engine with 6 cylinders we have an angle of 120º for each stroke,because 720º/6 =120º.Two turns of vibration damper correspond 720º.

[MBF]

I think what you're trying to say is that in a 4 cyl the power pulses are 180 apart (2 per crankshaft rotation), and in a 6 cyl they're 120 degrees apart (3 per crankshaft rotation) right? Mike

[Merle Coggins]

Right Mike. Fernando was right the first time. On a 6 cylinder, 4 cycle engine, there will be 6 power strokes per every 720 degrees of crank rotation (2 revolutions). 720 degrees divided by 6 cylinders = 1 power stroke every 120 degrees.

4 cylinder engines would have a power stroke every 180 degrees

8 cylinder engines would have a power stroke every 90 degrees

12 cylinder engines would have a power stroke every 60 degrees

A single cylinder engine fires every 720 degrees unless it's a 2 stroke engine, like a chain saw or weed wacker, then it fires every 360 degrees.

[Fernando Mendes]

I think what you're trying to say is that in a 4 cyl the power pulses are 180 apart (2 per crankshaft rotation), and in a 6 cyl they're 120 degrees apart (3 per crankshaft rotation) right? Mike

yes,Mike

[Fernando Mendes]

Right Mike. Fernando was right the first time. On a 6 cylinder, 4 cycle engine, there will be 6 power strokes per every 720 degrees of crank rotation (2 revolutions). 720 degrees divided by 6 cylinders = 1 power stroke every 120 degrees.

4 cylinder engines would have a power stroke every 180 degrees

8 cylinder engines would have a power stroke every 90 degrees

12 cylinder engines would have a power stroke every 60 degrees

A single cylinder engine fires every 720 degrees unless it's a 2 stroke engine, like a chain saw or weed wacker, then it fires every 360 degrees.

Yes Merle and Mike,now I could learn this stuff well.The finallity of this forum is to learn and study.Now I saw that each stroke is different in 4 and 6 cylinders engine.Thanks