2. Install the cylinder head on the stand for disassembly (Mot. 1573).
3. Loosen the nuts (1) fuel rail protectors
4. Remove the fuel rail protection.
5. Clean the high pressure fuel line connections.
6. Remove the high pressure fuel lines between the high pressure fuel pump and the fuel rail (see chapter "Supply system").
7. Remove the high pressure fuel pump (see chapter "Supply system").
8. Remove the fuel rail (see chapter "Supply system").
9. Remove glow plugs (see chapter "Engine electrical equipment").
10. Remove the vacuum pump.
11. Remove the cooling chamber (see chapter "Cooling system").
12. Remove the exhaust gas temperature sensor.
13. Remove the components of the exhaust gas recirculation system.
14. Remove the exhaust manifold.
15. Remove the camshaft seal from the drive side (see below).
16. Remove the camshaft (see below).
Note: It is necessary to mark the valve lifters in relation to the cylinders with a marker.
17. Remove the valve lifters.
18. Remove the valves from the cylinder head:
- Install the valve spring compressor (Mot. 1849) on the valve as shown.
- Compress the valve spring.
- Using a magnetized rod or tweezers, remove crackers (4) valve
- Decompress the valve spring and remove the valve spring compressor from the cylinder head.
- Remove the valve disc and valve spring.
- Remove valve from cylinder head
- Remove the remaining valves from the cylinder head in the same way.
19. Remove valve stem seals:
Note: Before removing the valve stem seal, it is important to note the size (H) old valve stem seals on the intake and exhaust sides (the installation size of the caps for inlet and outlet may differ).
- Install the valve to mark the installation dimension (H) an old slinger cap with the lower spring retaining washer using a slinger cap installer (Mot. 1759) or a kit for installing oil seals.
Note: To measure installation dimension (H) sealing cap, it is recommended to use a pressing tool (Mot. 1511-01) (5).
- Install mandrel (7) on the oil cap.
Note: The inner diameter of the mandrel must be identical to the diameter of the valve so that the bottom of the mandrel covers the metal upper section of the valve stem seal.
- Install guide tube (9) above the mandrel so that the tube touches the cylinder head.
- Insert sleeve (10) into the guide tube until it contacts the mandrel.
- Fix the sleeve with the fixing screw (11).
- Remove the guide tube and bushing assembly, being careful not to loosen the set screw.
- Remove valve.
- Remove valve stem seals with special pliers (Mot. 1335) (12).
Note: The following operation is only to be performed if the cylinder head has been replaced.
20. Loosen the bolts (4) and remove the lifting eye (5) from the cylinder head.