1. What is the firing order of a four stroke engine?
1 , 3 , 4 , 2.
2. What is the difference between a S.I and C.I engine?
S.I stands for spark ignition, this means that the fuel and air mixture in the combustion chamber is ignited by a spark plug. This ignition type is on gasoline engines.
C.I stands for compression ignition, this means that the air is introduced in the chamber before fuel, the air is compressed on compression stroke, the compression is very high, as soon as the piston is right to the top, diesel fuel is injected into the chamber, due to the very high compression rate and temperature, the fuel ignites immediately.
3. Is there any difference between a S.I and C.I piston if so what?
C.I pistons a heavily built, these pistons are designed to be able to withstand high compression and heat. Diesel engines will be used for heavy work so the pistons are much more stronger the gasoline engine pistons.
4. What year was the diesel engine invented and by whom?
Diesel engine was invented in 1887 by Rudolf Diesel.5. What is the purpose of the oil jet on the connectng rod, and where does it spray?
The oil jet sprays oil on the cylinder walls to keep it lubricated while the piston is moving.
6. On the connecting rod where is the big end and little end?
The big end is where it will connect with the crankshaft and the little end is where it will connect with the piston with a gudgeon pin.
7. What is the purpose of the thrush washers on the crankshaft?
Thrust Washers stop the play of the connecting rods on the crank shaft.
good work
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