Questions for this week

Question for this week

1.What is the firing order of a four stroke engine?
2.What is the difference between a S.I and C.I engine?
3.Is there any difference between a S.I and C.I piston if so what?
4.What year was the diesel engine invented and by whom?
5.What is the purpose of the oil jet on the connectng rod, and where does it spray?
6.On the connecting rod where is the big end and little end?
7.What is the purpose of the thrush washers on the crankshaft?
8.On a diesel engine whats the difference between direct injection and a indirect injection type?
9.Explan the term valve timming?
10.Why do we have valve clearance?

 

 

Answers

 

1. 1-3-4-2

 

2. the difference between S.I and C.i is that s.i stands for spark ignition and ci stands for compression ignition

 

3. yes, a s.i piston has a flat top and a c.i piston has a dip in it so there is a compustion chamber on the crown

 

4. Rudolf Diesel, in 1892

 

5. it squirts oil into the cylinder

 

6. the small end bearing is up the top of the con rod by the head of the piston and the big end bearing is down the bottom where the con rod connects to the crankshaft

 

7. the thrustwashers stop any play in the crankshaft so it cant move anywhere.

 

8. --

 

9. valve timing is the precise timing of the valves and can be adjusted by turning the camshaft.

 

10. we have valve clearence so if you snap you cambelt while driving and your cams go all out of time thne you cams wont bend all of youre valves whne the engine keeps going, mitsubishis have the most clearence out of all motors.