Piston



Engine Internal Components Name __________________________ V254

Video Questions

Piston

1. What is the purpose of the piston?

2. List four adverse conditions that pistons are subjected to.

3. Why should pistons be replaced in matched sets?

4. What are three ways to allow for or control piston expansion?

Piston rings

5. What is the purpose of compression rings?

6. What is the purpose of oil rings?

7. What force keeps the rings tight against the cylinder wall?

Connecting rod

8. List two ways that the connecting rod is attached to the piston.

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9. List three adverse conditions that connecting rods are subjected to.

Crankshaft

10. What is the name of the offset area of the crankshaft?

11. What is the purpose of crankshaft counterweights?

12. Which bearings support the crankshaft in the block?

13. What attaches to the rear of the crankshaft?

14. What attaches to the front of the crankshaft?

Bearings

15. What are two purposes of bearings?

16. What is the bearing surface material of a high performance bearing made of?

17. Which main bearing shell will wear more - the upper or lower?

18. Which connecting rod bearing will wear more - the upper or lower?

19. What is the purpose of the thrust bearing?

20. What supplies oil to the connecting rod journals?

21. What can be 2 results of main or connecting rod bearing wear?

Flywheel

22. Describe a flywheel.

23. What is attached to the flywheel on a vehicle with the standard transmission?

24. What is attached to the flex plate on a vehicle with an automatic transmission?

25. What is the name of the gear on a flywheel or flex plate?

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