1. Small Engines Identification Small Engine Parts

2. 1. Sump or Crankcase

3. 2. Cylinder

4. 3. Piston

5. 4. Bottom part of piston-Skirt

6. 5. Piston Pin Boss

7. 6. Piston Rings

8. 7. Compression Ring

9. 7a.

10. 8. Bottom Compression Ring or Scraper Ring

11. 8a.

12. 9. Oil Ring

13. 9a.

14. 10. Connecting rod

15. 10a. Connecting rod in piston

16. 11. Rod Cap

17. 12. Piston Pin with retainers

18. 13. Rod Cap

19. 14. Rob Cap Bolts- Fine Threaded

20. 15. Rod Cap Retainer

21. 16. Crankshaft

22. 22. Magneto Journal

23. 23. Crankpin Journal

24. 24. PTO Journal

25. 25. Valves

26. 27. Intake Valve- Larger in diameter

27. 28. Valve Face

28. 29. Valve Seat

29. Valve Guide

30. Spring Rotator

31. 30. Valve Stem

32. 31. Valve Retainer Groove

33. 32. Valve Spring- Heavier one goes on exhaust valve

34. 33. Valve Retainer

35. 34. Lifter or tappet or push rod

36. 35. Cam Lobes

37. 36. Cam

38. 37. Timing Marks

39. 38. Cylinder Head

40. 40. Flywheel

41. 41. Armature outside coil inside

42. 42. Air Gap

43. 43. Spark Plug

44. 44. Points and Condensor

45. 45. Air Vane Govenor

46. 46. Oil Slinger

47. 47. Carburetor

48. 48. Oil Foam Filter

49. 49. Recoil Spring for rope starter

50. 50. Starter

51. 51. Starter Clutch