Contents: Removal ⬇ Installation ⬇
Note.
- Necessary special devices, control and measuring instruments, as well as auxiliary means:
- Fastening suspension device "T30099".
- Washer -T30099/1-.
- Holder "T10358".
- Gasket Stripper (GST storage code, item no. R 34402), manufacturer Retech sro.
Removal
Caution: Perform pressure relief operations in the high-pressure part of the fuel system.
1. Drain the coolant from the engine cooling system and from the charge air cooling system.
2. Remove the following parts:
- Temperature regulator housing from the cylinder head.
- Intake gas line.
- Turbocharger.
3. Install the "T30099" suspension fastening device.
4. Unscrew the gearbox mounting screw, screw on the "T10358" holder according to the figure.
5. After securing the motor with the lead screws in the assembly position, apply a slight pre-stress to it.
Note: Removal of the timing chain housing is carried out with the engine suspension still in place using the "T10358" holder.
6. Remove the timing chain cover.
7. Remove the camshaft drive chain from the camshaft chain sprockets.
8. Remove the tensioner rail (1) and guide rail (2) from the bearing journals as shown in the figure below.
9. Remove the camshaft housing (for more details, see the relevant section in this chapter).
10. Remove the rocker arms together with the support elements and place them on a clean base.
11. Do not disassemble rocker arms and hydraulic compensators.
12. Loosen the cylinder head mounting bolts in the sequence shown in the figure below.
13. Carefully remove the cylinder head.
Installation
Note: Neither piston should be at TDC.
Note.
- The new cylinder head gasket should only be removed from its packaging immediately prior to installation.
- The new gasket must be handled with extreme caution. Damage will result in leaks.
- There should be no oil or coolant in the cylinder head bolt holes.
1. Seal the cylinders with clean rags to prevent any dirt from getting into the space between the cylinder walls and the pistons.
Attention: When working with the seal remover, wear protective gloves and glasses!
2. Make sure that no foreign bodies get into the cylinders or the lubrication and coolant passages during cleaning of the cylinder head and block.
3. Carefully remove any remaining old gasket from the cylinder head and cylinder block using a chemical gasket remover.
4. Having adjusted the piston of the 1st cylinder to TDC, turn the crankshaft slightly back.
5. Install a new cylinder head gasket. Inscription (part number) should be visible.
6. Install the cylinder head, using the centering pins in the cylinder block as a guide.
7. After installing the new cylinder head mounting bolts, tighten them by hand.
8. The cylinder head mounting bolts should be tightened in the following sequence:
- All bolts must be tightened to a torque of 30 Nm.
- Then turn all bolts an additional 90° (¼ turn) using a hard wrench.
- Then turn all bolts another 90° (¼ turn).
9. Install the hydraulic tappets into the cylinder head and place the corresponding rocker arms on the ends of the valve stems and, accordingly, on the hydraulic tappets.
10. Install the camshaft housing.
11. Further installation is carried out in the reverse order of actions than removal.
12. After filling the cooling system, remove air from it.