Fig. 3.56. GRM drive: 1 – intermediate shaft; 2 – asterisks of camshafts; 3 – chain of the drive of camshafts; 4 – axis of a boot of a natyazhitel of a chain of the drive of camshafts; 5 – boot of a natyazhitel of a chain of the drive of camshafts; 6 – natyazhitel of a chain of the drive of camshafts; 7 – the conducted asterisk of an intermediate shaft; 8 – leading asterisk of the drive of camshafts; 9 – bolt of fastening of asterisks of an intermediate shaft; 10 – natyazhitel of a chain of the drive of an intermediate shaft; 11 – bolt of fastening of a natyazhitel of a chain of the drive of an intermediate shaft; 12 – bent shaft; 13 – chain of the drive of an intermediate shaft; 14 – uspokoitel of a chain of the drive of an intermediate shaft; 15 – fingers of an uspokoitel of a chain of the drive of an intermediate shaft; 16 – uspokoitel of a chain of the drive of camshafts; 17 – bolt of fastening of an asterisk of the camshaft; 18 – ignition distributor drive coupling

The drive of camshafts is carried out from a bent shaft by means of chain transfers through an intermediate shaft (fig. 3.56) . The chain tension 3 drives of camshafts is regulated by a bolt 6. The hydraulic natyazhitel 10 chains of an intermediate shaft automatically establishes its tension.

Removal of the GRM drive is carried out in the following order:

Fig. 3.57. Combination of tags of installation of the piston of the cylinder No. 1 in VMT: 1 – chain of the drive of camshafts; 2 – asterisk of an intermediate shaft; 3 – asterisk of an intermediate shaft leader of the drive of camshafts; 4 – chain of the drive of an intermediate shaft; 5 – natyazhitel of a chain of the drive of an intermediate shaft; 6 – clamp of a natyazhitel of a chain of the drive of an intermediate shaft; 7 – asterisk of a bent shaft; 8 – uspokoitel of a chain of the drive of an intermediate shaft; 9 – adjusting tags of VMT; 10 – bolt of fastening of asterisks of an intermediate shaft

– install the piston of the cylinder No. 1 in compression step VMT, for this purpose turn a bent shaft clockwise before combination of adjusting tags (fig. 3.57) ;

– weaken a tension of a chain 3 (see fig. 3.56 ) the drive of camshafts, for this purpose turn out a bolt 6 natyazhitel of a chain;

– apply tags with paint on a chain of the drive of camshafts in the places shown in fig. 3.57 ;

– block a bent shaft from a provorachivaniye;

Fig. 3.58. Oil pump and oil filter: 1 – index of level of engine oil; 2 – block of cylinders; 3 – cover of a shaft of the drive of the oil pump; 4 – gear wheel of the drive of the oil pump; 5 – intermediate shaft; 6 – cover of an intermediate shaft; 7 – asterisk of an intermediate shaft; 8 – asterisk of an intermediate shaft of the drive of camshafts; 9 – bolt of fastening of asterisks of an intermediate shaft; 10 – shaft of the drive of the oil pump; 11 – oil pump; 12 – bolt of fastening of the oil pump; 13 – laying of a maslopriyemny pipe; 14, 16 – bolts of fastening of a maslopriyemny pipe; 15 – maslopriyemny pipe; 17 – cover of an oil filter; 18 – sealing ring; 19 – oil filter; 20 – case of an oil filter; 21 – bolts of fastening of the case of an oil filter

– turn off a bolt of the 9th fastening of asterisks of an intermediate shaft and remove an asterisk 8 (see fig. 3.58 );

– remove a chain 3 drives of camshafts;

– remove an asterisk of the 7th intermediate shaft;

– remove a chain 4 drives of an intermediate shaft. (see fig. 3.57 ).

PREVENTION Do not turn a bent shaft after removal of chains of the GRM drive. It will lead to blow of pistons about valves.

Installation of the GRM drive is carried out in the following order:

– check installation of the piston of the cylinder No. 1 in VMT, at the same time short tooth of an asterisk 7 (see fig. 3.57 ) the camshaft it has to be combined with an adjusting tag 9 on a forward cover of a bent shaft;

– establish a chain 4 drives of an intermediate shaft on an asterisk of the 7th bent shaft;

– establish a chain 4 on an asterisk 2 intermediate shafts and establish an asterisk 2 on an intermediate shaft;

– check combination of a ledge on an asterisk 2 intermediate shafts with an adjusting tag on a cover of an intermediate shaft;

– establish an asterisk 3 on an intermediate shaft and tighten a bolt of the 10th fastening of asterisks the moment of 100 N · m, having recorded an intermediate shaft from a provorachivaniye;

– establish a guide 16 (see fig. 3.56 ) to a chain of the drive of camshafts;

– establish a head of the block of cylinders (see subsection 3.2.5);

– be convinced that camshafts are installed in the situation corresponding to VMT of the piston of the cylinder No. 1;

– fix camshafts from a provorachivaniye;

– install asterisks 2 on asterisk camshafts with the chain which is put on them 3;

– install the coupling 18 of the drive of the distributor of ignition and wrap bolts of the 17th fastening of asterisks of camshafts;

– tighten bolts the 17th moment of 100 N · m, holding camshafts from a provorachivaniye a wrench;

– unblock the piston of a hydraulic natyazhitel 5 chains of the drive of an intermediate shaft, having turned a clamp the 6th screw-driver;

– establish a natyazhitel 5 and tighten bolts of his fastening the moment of 20 N · m;

– check combination of all adjusting tags;

– unblock camshafts;

– execute other operations in the sequence, the return to removal.