Camshaft / diesel valve drive mechanism

1. Bearing caps; 2. Bearing cap nut, 20 Nm; 3. Camshaft; 4. Poppet pusher (do not confuse different pushers); 5. Valve crackers; 6. Valve spring plate; 7. Valve spring; 8. Adjusting washer for adjusting the valve clearance; 9. Valve stem seal; 10. Valve spring guide; 11. Cylinder head; 12. Oil seal (inserted using a special tool or a pipe of the appropriate size).