6.7. Left cover of a head of the block of cylinders

Removal
Open a cover of a broad tank.
Remove a forward cross-piece.
Install under the engine the pallet for collecting cooling liquid.

Fig. 3.4-17. An arrangement of carving traffic jams for discharge of cooling liquid from the cooling system



Unscrew three carving stoppers and merge cooling liquid from the cooling system (see fig. 3.4-17).

Fig. 3.4-19. Removal of a casing of the engine



Having pulled for lateral faces up, remove an engine casing (see fig. 3.4-19).
Unscrew screws and remove an additional left casing in a motor compartment.
Weaken collars of fastening and disconnect cooling system hoses about the fuel pump of high pressure.

Fig. 3.4-40. Cover of a head of the block of cylinders: 1 – laying of a cover of a head of the block of cylinders; 2 – cover of a head of the block of cylinders; 3, 4 – sealing rings; 5 – bolt, 10 N · m; 6 – oil-filling mouth; 7 – consolidation; 8 – cover; 9 – bolt, 5 N · m; 10 – the giving fuel-supply line; 11 – fuel-supply line of high pressure; 12 – spring clip; 13 – sealing ring; 14 – bolt, 10 N · m; 15 – fuel nozzle; 16 – sealing ring; 17 – bolt, 10 N · m; 18 – Hall's sensor G40; 19 – sealing ring; 20 – bolt, 10 N · m; 21 – cap


Fig. 3.4-41. An arrangement of bolts and connecting nuts of fastening of pipelines to the control unit of injection of fuel (Rail-element):
1 – face connecting nut; 2, 3 – bolts; 4, 5, 6, 7 – connecting nuts of fuel-supply lines


Unscrew a face connecting nut of 1 (fig. 3.4-41).
Unscrew connecting nuts of fuel-supply lines 4–7.
Unscrew two bolts 2 and 3 and remove the block of injection of fuel from an inlet collector.

Fig. 3.4-42. Arrangement of a vacuum hose (1), clips of a returnable fuel-supply line (2) and electric sockets of nozzles (3, 4, 5, 6, 7)



Disconnect electric sockets of nozzles of 3-7 (fig. 3.4-42).
Disconnect a vacuum hose 1.
Release from clips a returnable fuel-supply line 2 and remove it.
Unscrew a stopper of an oil-filling mouth.

Fig. 3.4-43. A dredging arrangement in an opening of an oil-filling mouth



For a bolt of fastening of a pulley of a bent shaft turn a shaft until in an opening of an oil-filling mouth dredging (fig. 3.4-43) is not visible.

Fig. 3.4-44. Arrangement of bolts of fastening of casings of fuel nozzles 



Unscrew bolts of fastening of casings of nozzles, pull casings up and turn on 90 ° counterclockwise (fig. 3.4-44).

Fig. 3.4-45. Arrangement of bolts of fastening of fuel nozzles



Unscrew the opened bolts of fastening of nozzles (fig. 3.4-45).
Pull up and remove nozzles of cylinders 6 and 8.
At removal of fuel nozzles it is possible to use the lever.
Turn a bent shaft clockwise on 180 ° and remove nozzles of cylinders 5 and 7.

Fig. 3.4-46. Arrangement of bolts of fastening of a cover of a head of the block of cylinders



Turn out bolts and remove the left cover of a head of the block of cylinders (fig. 3.4-46).

Installation
Installation is carried out to the sequences, the return to removal, taking into account the following.
Replace sealing rings of tubes of return of fuel.
If necessary replace laying of a cover of a head of the block of cylinders.
Establish a sealing half ring.
Degrease a surface under laying of a cover of a head of the block of cylinders.

Fig. 3.4-47. Places of putting sealant before installation of the left cover of a head of the block of cylinders



Apply a thin continuous layer of sealant on a semicircular surface (fig. 3.4-47) in an end face of a head of the block of cylinders.
Apply with sites of projections 5 mm a layer of sealant with a diameter of 3 mm on external covers of the camshaft (see fig. 3.4-47).
Tighten nuts of fastening of a cover of a head of the block of cylinders gradually cross-wise.
Establish a forward cross-piece.
Fill in cooling liquid in the cooling system.