Contents: Removal ⬇ Installation ⬇
Note: Necessary special control devices and measuring instruments, as well as auxiliary means:
- Pliers for hose clamps.
- Sealing agent "D 176 501 A1".
- Screw M6x70 (2 pcs.): modify screws by cutting off screw heads.
- Gasket Stripper (GST storage code, item no. R 34402), manufacturer Retech sro.
- Cleaning and degreasing agent, eg. "D 000 401 04".
- Protective gloves and glasses.
Removal
1. Drain the coolant into a previously prepared container.
2. After loosening the clamps (1) and (2), disconnect the coolant hoses as shown in the figure below.
3. Loosen the fastening clamp (3) and pull it out together with the coolant hoses in an upward direction, as shown in the figure below.
4. The coolant hoses should be placed back.
5. Remove all mounting screws from the upper timing chain housing (1) as shown in the figure below.
6. Carefully remove the upper timing chain cover.
Installation
1. Installation is carried out in the reverse order of actions, and the following instructions must be observed.
To facilitate installation of the timing gear housing cover, screw two M6x70 studs (1) into the cylinder head cover.
Caution: When working with the seal remover and degreaser, wear protective gloves and goggles.
(This material is published on the portal: «Skodabook.ru»)
2. Remove any remaining sealant from the sealing surfaces on the top timing gear cover and on the cylinder block using a chemical seal remover.
3. Degrease the sealing surfaces.
4. Use scissors to cut off the nozzle tip of the tube at the front mark (nozzle diameter – approx. 3 mm).
Note.
- The installation, from the moment of applying the sealant until tightening the fastening screws with a torque of 8 Nm, must not last longer than 6 minutes.
- The sealant begins to harden after 6 minutes.
- Remember that tightening the mounting bolts is done in two stages.
5. Apply a special sealant (D 176 501 A1) onto the sealing surface (1) shown in the figure below.
6. In the area shown in the figure below (arrow), apply a little more sealant.
7. Install the upper timing chain cover (1) onto the guide pins (2) as shown in the figure below.
8. Move the cover along the guides until it stops against the cylinder head. Make sure that the cover is not skewed.
9. Remove the guide bolts from the cylinder head holes. Install the upper timing cover mounting bolts and tighten them to the required tightening torque, in the sequence shown below.
First approach: Tighten the mounting bolts in the sequence shown below to a tightening torque of 5 Nm.
Second approach: Tighten the timing chain cover mounting bolts in the sequence shown in the figure below to a tightening torque of 8 Nm.
10. Move the mounting clamp (3) to fully install it into the mounting bracket as shown in the figure below.
11. Connect the cooling system hoses to the pipes, then tighten the hose clamps (1) and (2), as shown in the figure below.
12. Fill the cooling system with coolant.
