6.9. Removal of the left head of the block of cylinders


Fig. 3.4-52. Head of the block of cylinders: 1 – forward average pipe of the cooling system; 2 – bolt, 10 N · m; 3 – sealing ring; 4 – head of the block of cylinders; 5 – the directing plug; 6 – bolts of fastening of a head of the block of cylinders; 7 – a connecting pipe of system of recirculation of the fulfilled gases; 8 – bolt, 10 N · m; 9 – laying; 10 – pipe of system of ventilation of a case; 11 – bolt, 10 N · m; 12 – vacuum pump; 13 – bolt, 10 N · m; 14 – sealing rings; 15 – a bolt, 20 N · + to tighten m on a corner 90 °; 16 – laying; 17 – the directing pipe for the index (probe) of level of oil; 18 – bolt, 10 N · m; 19 – laying of a head of the block of cylinders


Weaken a collar, unscrew a bolt and remove the left air branch pipe.

Fig. 3.4-53. An arrangement of bolts of fastening of the left pipe of recirculation of the fulfilled gases and a turbocompressor to a final collector



Unscrew bolts and disconnect the left pipe of recirculation of the fulfilled gases (fig. 3.4-53).
Turn out bolts of fastening of a turbocompressor to a final collector (see fig. 3.4-53).
Turn out a bolt of fastening of the directing pipe of the index (probe) of level of oil to a head of the block of cylinders.
Unscrew bolts of fastening of the fuel heat exchanger.
Unscrew and remove the average pipe of the cooling system located behind a head of the block of cylinders.

Fig. 3.4-54. Arrangement of fastenings of hoses of ventilation of a case



Unscrew and remove hoses of ventilation of a case (fig. 3.4-54).

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 3–7 (see fig. 3.4-42).
Disconnect a vacuum hose 1.
Release from clips the giving 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 is not visible (see fig. 3.4-43).

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 them on 90 ° counterclockwise (see fig. 3.4-44).

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



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

Fig. 3.4-55. An arrangement of bolts of fastening of the directing roller and a back casing of a gear belt



Turn out a bolt of fastening of the directing roller (fig. 3.4-55).
Unscrew bolts and remove a back casing of a gear belt (see fig. 3.4-55).

Fig. 3.4-56. Arrangement of the electric socket (1) and bolts (2, 3, 4) of fastening of TNVD



Disconnect the electric socket (fig. 3.4-56) from the fuel pump of high pressure (FPHP).
Unscrew bolts of fastening 2,3,4 and remove TNVD.
Disconnect the electric socket from the sensor of temperature of cooling liquid.
Unscrew bolts of fastening and remove the right and average pipes of the cooling system.

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



Unscrew bolts and uncover the left head of the block of cylinders (see fig. 3.4-46).

Fig. 3.4-57. Arrangement and sequence of an inhaling of bolts of fastening of a head of the block of cylinders



Unscrew bolts and remove the left head of the block of cylinders (fig. 3.4-57).