It gets any the thIckness of a penny!!
The surface of the piston facing the spark plug electrode.
The surface of the piston facing the spark plug electrode.
The fuel/air mixture is compressed by the piston moving upwards, the spark plug ignites that mixture and causes an explosion which pushes the piston downward.
the sparkplug is located on top of the piston chamber to ignite the fuel compressed by the piston when the spark goes off
which is 5 piston
The Air/Fuel mixture enters the cylinder, and at the moment the piston is close to top dead center, the spark plug fires creating a spark across the electrode. This spark ignites the mixture of Fuel & Air and forces the piston down. This downward motion is transformed into a rotating motion by the crankshaft which drives the vehicle through a transmission. The spark plug is basically a device that is used to ignite the fuel and cause an explosion within the cylinder. BTW, a diesel engine does not have a spark plug. The fuel/air is ignited by compressing the mixture to the point that it explodes.
The gas goes to the piston chamber not the spark plug. Is your fuel pump working and if so are the jets blocked.
Since the samaurai uses a timing belt it can jump but not in this case. Jumping time would not make it hit the spark plug it would come very close to the valves and hit those before it hit the spark plug. You may have a problem either with the piston rist pin or with the piston rod cap coming loose. Hope this helps To rephrase the question: If a piston in a 4 cylinder 1.3 samurai engine hits a spark plug could it cause the timing belt to jump time? If the rotating mass of the cam and valves versus the crankshaft has enough kinetic energy to overrun the timing belt, then yes, it is possible. It does seem very unlikely fundamentally because the mass of the piston would either flatten the spark plug or the piston would dent and if forced too far by the spark plug it would fail catastrophically and would have metal failure such as holes or cracks. In other words, it depends on how many RPM's the engine was running at, when it hit the spark plug.
You probably have the wrong spark plug(s) installed. The wrong spark plug may be longer than specifiactions amd is why the piston is hitting it. If you have the correct spark plugs installed, then it is likely that one of the valves is stuck in the open postion. You can determine this with a compression test. You do not want to drive around with the piston hitting either the wrong spark plug or stuck valve - will damage or crack the piston and will be a costly repair. It is probable that the stuck valve (if that's the problem) may be bent.
No. How could there be? The "stroke" of an engine is the piston going up or down. If the spark plug fires and piston goes down, then up,and then fires again, then it's a two-stroke engine. IN a 4-stroke engine, the spark plug fires, piston does down, then up to exhaust the cylinder, then down to suck in fresh air and cool the cylinder, and up again to compress, and the spark plug fires every other "up". How could you have a "three-stroke" engine? The spark plug fires and the explosion pushes the piston down, and the crankshaft pushes it back up. Then back down. If the spark plug fires while the piston is DOWN, the engine will seize up. Nope. In a piston engine, the number of "strokes" is always an even number. For radial or Wankel engines, things are different - but in those there is no piston, and no "stroke".
Defective spark plug, plug wire, burnt valve, busted piston, bad rings, blown head gasket or cracked head.Defective spark plug, plug wire, burnt valve, busted piston, bad rings, blown head gasket or cracked head.
The piston will usually be a few degrees before top center.