alright, i like to think i know enough about cars, the basics and then some but i was just wonering, why do only half of the cylinders fire at a time? like on a four cylinder only two pistons are are used per revolution, wouldn't it make more power if all of them fired. I know the pistons skip a spark when the other two were fired, but why?
thanx in advance.

 

Onlyy ONE cylinder fires at a time-- this is true for 1, 2, 4, 5, 6, 8, 10 12 and 16 (conventional) cylinder engins . . .

 

Basic operation of a 4-stroke engine: Piston goes down and fills the cylinder with the fuel/air charge. Piston comes up to compress the charge so it can ignite. Spark plug ignites the charge and pushes the cylinder down. Piston comes up during the exhaust stroke. 4-strokes take 2 engine revolutions so only half the cylinders are ready to fire on each revolution.

 

That's right Suck, squeeze, bang and blow!

 

...

 

.....Naa tooo easy. Ha ha ha.

 

what were you meaning by this?

 

This is how 4 stroke engine works,
1st stroke=(SUCK) intake valves open, piston going down sucking air.
2nd stroke= (SQUEEZE) intake and exhaust valve close, piston going up to begin its compression
3rd stroke (BANG) is when the piston reach the TDC (top dead center) it will start its combustion process, mixing compress air, fuel and sparks. This combustion will push the piston down (power stroke}
4th stroke- (BLOW) intake valves closed, piston going up and exhaust valves open

 

Quit putting dirty, dirty things in my head! Now I have to put the kids down for a nap and find the wife!

 

LOL

 

LOL

 

this thread took a nice turn....