1. Cylinder head gasket.
2. Cylinder head.
Z. Inlet pipe of the cooling system.
4. Hydraulic compensators.
5. Rocker arms.
6. OCV valve oil filter.
7. Camshafts.
8. Camshaft covers.
9. Oil control valve (OCV).
10. Electric and hydraulic phase shifters.
Note:
: replace the part with a new one after each removal.
: apply oil.
1. Thoroughly clean the contact surfaces of the cylinder block and block head.
2. Install a new cylinder head gasket
3. Install the cylinder head on the engine.
4. Check the length of the cylinder head bolts (see related section below) and if necessary, replace the bolts with new ones. If cylinder head bolts are reused, apply engine oil to the seating surface of the bolt head and cylinder head.
5. Tighten the cylinder head bolts in four stages in the sequence shown in the figure:
- Stage 1:13-17 Nm
- Stage 2: 43-47 Nm
- Stage 3: 85-95°
- Stage 4: 85-95°
6. Remove any remaining sealant from the bolt holes in the cylinder block on the side of the cooling inlet strut.
7. Apply coolant to the O-rings.
Attention. Do not apply oil (motor, transmission, etc.) on the O-rings of the water inlet pipe. Otherwise, the material of the O-rings may be damaged, resulting in a leak.
8. Install the O-ring on the cooling system inlet pipe.
9. Insert the cooling system inlet into the water pump, being careful not to damage the O-ring.
10. Install the gasket for the inlet pipe of the cooling system so that its protrusions are located as shown in the figure.
Note: : replace the part with a new one after each removal.
11. Tighten the bolts in the sequence shown in the figure.
12. Remove air from the hydraulic compensators:
Place the hydraulic lifter in the engine oil reservoir.
Attention. Do not insert the rounded rod with great force as the check valve ball spring is extremely weak.
Lightly pressing the check valve ball with a rounded rod (about 1.0 mm in diameter), remove the air by moving the plunger up and down.
Press the end of the plunger into the oil and make sure there is no pushing sensation. Otherwise, it is necessary to replace the hydraulic compensator with a new one.
13. Visually inspect the surface of the hydraulic compensator in contact with the rocker arm for wear or damage. If any defects are found, replace the gyro compensator with a new one.
14. Install the hydraulic compensator in its original position in the cylinder head.
15. Apply engine oil to the hydraulic lifters and the ends of the valve stems, then set the rocker arms to their original positions, which they occupied before removal.
Note: : apply oil.
16. Insert the OCV oil filter into the front camshaft cover.
17. Apply gear oil (SAE 90 or similar) or engine oil on the center of each bearing in the cylinder head as shown.
Attention. No more than 0.05 ml of oil should be applied to support No. 6.
18. Apply gear oil (SAE 90 or similar) or engine oil on the thrust surface of the front camshaft journals.
19. Aligning the position of the camshaft cam with the position of the almost top dead center of the piston of the first cylinder (TDC), as shown in the figure, install the camshafts in the cylinder head.
20. Apply gear oil (SAE 90 or similar) or engine oil on the center of each camshaft journal as shown.
21. Apply adhesive (Loctite 962T) around support No. 6 of the cylinder head or on the rear cover of the exhaust camshaft.
Attention. Make sure that the adhesive does not get on the camshaft journal.
Note: Adhesive bead width. 0.5-1.5 mm.
22. Install the camshaft covers in numerical order (according to the markings on the lids) and evenly screw on the cover bolts in two or three passes in the sequence shown in the figure.
23. Tighten the camshaft cover bolts in two stages in the sequence shown in the figure: first to a torque of 3.0-6.0 Nm, and then to a torque of 8-11 Nm.
24. Screw in the oil control valve.
25. Align the locating pin on the end of the camshaft with the groove of the phase shifter (intake side) or mounting hole (release side), then install the phase shifter on the camshaft.
26. Holding the camshaft by the hex part with an adjustable wrench, tighten the phase shifter bolt to the specified tightening torque.
Note:
Tightening torques for phase shifter bolts:
- Electric phase regulator: 102-114 Nm.
- Hydraulic phase adjuster: 75-85 Nm
27. Subsequent installation is carried out in the reverse order of removal.