Workshop Manual

15.1 DESCRIPTION AND OPERATION OF PISTON AND CONNECTING ROD AND RELATED PARTS

Each piston has an oil control r ing (6), a middle compression ring (7), and a ﬁre ring (8).

1. Piston Skirt 8. Fire Ring

2. Cover Plate (EPA07 pistons only) 9. Cooling Galley

3. Piston Pin

10. Combustion Bowl

4. Retaining Clip

11. Piston Dome

5. Piston Boss

12. Top Land

6. Oil Control Ring

13. Second Land

7. Compression Ring

Figure 15-2 Piston

All information subject to change without notice.