why engine off when key switch turned off?

Question

what is the reason behind while we turned key switch off engine is also shut off give me to answers for if it is an petrol or diesel engine,2-wheeler or 4 wheeler or it is big heavy machine engines.every body will told that it will dis engage the spark plug connection,or shut off solenoid turned on.if this will occur the engine must have to air lock due to lack of diesel.

Answer 1

interesting question but i'm sorry i think its bcoz of engine

Answer 2

Key off means no spark in a gas engine and no fuel in a diesel , and no there will be no air lock as the valves still work and air is still compressed. Very simple system to understand.

Answer 3

that is how it is designed. if it is a gas engine, the spark is lost due to a lack of power to the ignition coil. if it is a diesel, then the fuel is stopped and the engine stops due to that.

Answer 4

HI

When you turn the key to off it disconnects the power supply to the ignition system, which supplies power to the plugs (spark or glow) and the power to any accessories, fuel pump, fan's ETC.

hopes this answers your question

good luck

tim