Removal of a head from the engine established on the car, is carried out in the following sequence:

– disconnect a wire from the negative plug of the storage battery;

– remove the top casing from the engine;

– remove a protective casing from the ignition distributor;

– disconnect wires of a high voltage from a cover of the distributor of ignition;

– remove directing wires of a high voltage;

Fig. 3.43. Head of the block of cylinders of the AAA engine: 1–cover of a head of the block of cylinders; 2–nut of fastening of a cover of a head of the block of cylinders; 3–laying of a cover of a head of the block of cylinders; 4–cover of the bearing of a camshaft; 5–head of the block of cylinders; 6–cover of a drive of GRM; 7–bolt of fastening of a cover of a drive of GRM; 8–laying of a head of the block of cylinders; 9–bolts of fastening of a head of the block of cylinders

– unscrew nuts 2 (fig. 3.43) of fastening of a cover of a head of the block of cylinders and uncover 1;

Fig. 3.44. Inlet collector: 1–butterfly valve case; 2–laying of the case of a butterfly valve; 3–top section of an inlet collector; 4–laying of the top section of an inlet collector; 5–laying of the bottom section of an inlet collector; 6–bolt of fastening of the bottom section of an inlet collector; 7–bottom section of an inlet collector; 8–bolt of fastening of the top section of an inlet collector

– unscrew bolts 8 (fig. 3.44) of fastening of the top section of an inlet collector and remove the top section assembled with the case of a butterfly valve and the inlet pipeline;

Fig. 3.45. Final collector: 1–nut of fastening of a casing of a final collector; 2–casing of a final collector; 3–a tube of removal of the fulfilled gases for verification of the maintenance of CO; 4–sections of a final collector; 5–nut of fastening of section of a final collector; 6–laying of a final collector; 7–hairpin of fastening of a casing of a final collector

– unscrew nuts 1 (fig. 3.45) of fastening of a casing of a final collector and remove a casing 2;

– unscrew flange nuts and lift the receiver 3 removals of the fulfilled gases for verification of the maintenance of CO;

– unscrew nuts of the 5th fastening of sections of a final collector and remove sections 4;

– remove a chain of a drive of GRM;

– remove the ignition distributor;

– remove a natyazhitel of a chain of a drive of GRM;

– unscrew bolts 7 (see fig. 3.43 ) fastenings of a cover of a drive of GRM and uncover 6;

Fig. 3.46. Sequence of an inhaling of bolts of fastening of a head of the block of cylinders of the AAA engine

– unscrew bolts of the 9th fastening голоки the block of cylinders in sequence, their return inhaling (fig. 3.46) , on one turn for one pass and remove bolts with washers;

– remove a head of the 5th block of cylinders;

– remove laying of the 8th head of the block of cylinders;

– unscrew bolts 6 (see fig. 3.44 ) fastenings of the bottom section of an inlet collector and remove the bottom section 7.

Installation of a head of the block of cylinders is carried out in the following order:

– establish new laying 8 (see fig. 3.43 ) heads of the block of cylinders on adjusting pins "OBEN/TOP" inscription up, check combination of all openings of laying with the corresponding openings of the block of cylinders;

– establish accurately a head of the 5th block of cylinders;

– insert bolts of the 9th fastening of a head of the block of cylinders with washers and wrap them manually;

PREVENTION At assembly it is recommended to establish new bolts of fastening of a head of the block of cylinders.

– tighten bolts of the 9th fastening of a head of the block of cylinders in the sequence shown on fig. 3.46 , at first the moment of 40 N · m, then the moment of 60 N · m also tighten on 180 °;

– establish a chain of a drive of GRM on asterisks of camshafts, check coincidence of adjusting labels;

– establish a cover of 1 head of the block of cylinders with new laying 3 and tighten nuts 2;

– establish the top section 3 (see fig. 3.44 ) an inlet collector and tighten bolts 8. Thus first of all it is necessary to tighten fastening bolts to the bottom section of an inlet collector, and then to a back support;

– execute other operations in sequence, return to removal.

After installation adjust an accelerator cable. After start-up of the engine check tightness of connections of fuel system, systems of cooling and production of the fulfilled gases.

PREVENTION If hydraulic pushers were replaced, do not start up the engine during 30 mines after completion of works.