Correct assembly of the rocker shaft
1. Inlet rocker arms; 2. Exhaust rocker arms
Each of the springs (3) located between the rockers.
Installation drawing of diesel engine cylinder head
1. Ventilation hose; 2. Oil filler cap; 3. Cylinder head cover; 4. Cylinder head cover gasket; 5. Semicircular seal; 6. Rocker shaft; 7. Intake valve rocker; 8. Exhaust rocker; 9. Rocker shaft spring; 10. Adjusting screw; 11. Camshaft oil seal; 12. Front bearing cap; 13. Bearing cap N2; 14. Bearing cap N3; 15. Bearing cap N4; 16. Rear bearing cap; 17. Camshaft
The intake and exhaust rocker arms are different and are marked with either "I" (intake valves), or "E" (exhaust valves). The oil injection holes on the rocker shaft must be located at the bottom after installation. The shaft end with one lubrication hole must be on the front side. There are two lubrication holes on the other end of the shaft.
Bearing caps N2, 3 and 4 are marked with their numbers. Bearing caps N1 and 5 are not marked as they can be distinguished by their shape.
The rocker shaft is installed after the camshaft is installed.
1. Lubricate all parts of the rocker mechanism with engine oil and install the rocker arms and springs on the shaft.
2. Insert both bolts and spring washers and tighten the bolts to a torque of 35 to 40 Nm.
3. The rest of the work is carried out similarly to gasoline engines. Install the toothed belt and other parts of the timing drive. On fig. The assembly drawing of the diesel engine cylinder head shows the details of the rocker shaft. After installation, adjust the valve clearances on a cold engine and bring them to the specified values after the engine warms up.