Fig. 69. The block of cylinders with the details established on it: 1 — a bolt, 25 Н·м; 2 — a pulley of the pump of cooling; 3 — a bolt, 20 Н·м; 4 — the pump of system of cooling; 5 — an O-shaped sealing ring, always replace new; 6 — масломерный щуп with a directing tube; 7 — blocking of tap of oil, 5 Н·м; 8 — the detonation gauge № 2 (for updating of the moment of ignition); 9 — the screw, 5 Н·м; 10 — a cover of a drive of the oil pump; 11 — an O-shaped sealing ring, always replace new; 12 — a drive of the oil pump; 13 — the block of cylinders; 14 — an intermediate shaft; 15 — the adjusting washer, an inscription on it should look upwards; 16 — a bolt, 10 Н·м; 17 — an O-shaped sealing ring, always replace new; 18 — a lining oil картера; 19 — the thermostat case; 20 — a bolt, 10 Н·м; 21 — an O-shaped sealing ring, always replace new; 22 — the gauge of frequency of rotation of a cranked shaft; 23 — a bolt, 5 Н·м; 24 — a bolt, 20 Н·м; 25 — an O-shaped sealing ring

Carefully wash up the block of cylinders 13 (fig. 69) and clear oil channels. Having blown and having dried compressed air, examine the block of cylinders. Cracks in support or other places of the block of cylinders are not supposed. Necessarily remove all rests of cleaners from the block of cylinders.

Measure a backlash between lateral surfaces of the cylinder and the piston (item 2.4.2 see).

The difference of the measured values of internal diameter of the cylinder between the top and bottom belt specifies on конусообразность cylinder apertures, and a difference of values between a longitudinal and cross-section direction — in ovality. Internal diameter of the cylinder should not differ anywhere more than 0,08 mm from the nominal size.

In the engine pistons of two repair sizes for what accordingly it is necessary to chisel the block of cylinders (see item 2.4.2) can be established.

Fig. 46. Check of a head of the block of cylinders on deformation by means of a measuring ruler and щупа

Check up deformation of a surface of the block of cylinders (as for a head of the block of cylinders fig. 46 see) for what measure size of a backlash of the block of cylinders in longitudinal, cross-section directions and on a diagonal with помощъю a set щупов. The backlash should not exceed 0,10 mm. Before measurement be convinced that the surface of the block of cylinders is carefully cleared and there are no foreign matters between щупом and a surface of the block of cylinders.