!
WARNING
AVOID OPERATION OF THE ENGINE AFTER AN ALARM HAS
SOUNDED. USE OF THE ENGINE WITHOUT ADDRESSING THE
PROBLEM MAY RESULT IN ENGINE DAMAGE OR FAILURE.
Distributor
Your gasoline engine ignites the fuel by use of a spark generated at
the precise moment when the fuel mixture has been fully compressed.
However, your engine doesn’t spark each cylinder at the same time,
each cylinder requires a spark according to which stage of the engine
cycle the cylinder is in. A distributor takes the electrical current
generated by the starter battery and distributes the electrical potential
to each cylinder in turn as needed to generate the spark as needed.
Spark Plugs
The spark plugs are the piece of equipment that make the spark occur.
As electrical potential builds on one side of the gap based upon the
energy distributed by the distributor, the potential eventually grows
large enough to cause the electric current to jump the gap on the
spark plug. This spark is what ignites the compressed fuel generating
a controlled explosion that will power the piston down and deliver
power to the drive shaft.
3-8
Chapter 3
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