Removal and installation of a cover of a head of the block of cylinders

Withdrawal

1. Disconnect the two electrical connectors of the wires and disconnect the vacuum hose (if available). Then remove the air cleaner cover assembly along with the air mass meter, resonator and prechamber (ch. 4A).

2. Disconnect the accelerator cable from the throttle linkage (ch. 4). Disconnect also the speed control cable (if available) (ch. 12).

3. Remove the top cover of the timing belt MGR (chapter 9).

4. Disconnect the crankcase ventilation hose from the fitting on the head cover (see fig. 5.4).



5. Disconnect the high voltage wires from the spark plugs and pull them out, unfastening the wires from the cover.

6. Consistently turn out fixing bolts of a cover of a head of the block. Notice the spacer and rubber seal on each of the bolts. Then remove the cover (see fig. 5.6).



7. Discard the cover gasket. After removing the cover, it must always be replaced. Check that the sealing surfaces are not damaged and that the rubber seals on each bolt are in good condition. Replace worn or damaged seals.

Installation

8. When installing, carefully clean the cover and head of the block, and then install a new gasket so that it settles into the groove of the cover (see fig. 5.8).



9. Install the cover on the block head. Then insert the rubber seal and spacer into the location of each bolt (see fig. 5.9). Screw the bolts by hand, so that the gasket settles into its groove.



10. In a cross sequence from the center to the edges, in two stages (see Technical Requirements) tighten the cover bolts to the required torque.

11. Install the high-voltage wires and, laying them properly, secure. Each wire is numbered. The wire can be identified by numbering on the corresponding ignition coil terminal.

12. Install the crankcase ventilation hose and the MGR timing belt top cover. Attach and adjust the accelerator cable. Then install the air cleaner cover assembly with air mass meter, resonator and prechamber (chapter 4).