1. Cylinder block

2. Rear oil seal

3. Flywheel

4. Crankshaft upper bearing

5. Crankshaft center bearing

6. Crankshaft

7. Crankshaft lower bearing

8. Bed plate

9. Piston ring

10. Piston

11. Piston pin

12. Snap ring

13. Connecting rod

14. Connecting rod upper bearing

15. Connecting rod lower bearing

16. Connecting rod bearing cap

17. Oil jet