3c33ddb1

3.5.2.4. Diesel engine of 1,7 l

Head of the block of cylinders
The most admissible neploskosnost of the lower surface of a head of the block of cylinders
0.1 mm
Height of a head of the block of cylinders:
  – standard
131.45 – 131.55 mm
  – minimum
131.25 mm
Valve saddle width:
  – standard
1.2 to 1.5 mm
  – limit
2.0 mm
Vystupaniye of the vortex camera
0.001 – 0.030 mm
Deepening of the valve in a head of the block of cylinders
0.5 – 1.0 mm
Piston fingers
Diameter
27 mm
Length
60 mm
Gap of a piston finger in the piston
0.002 – 0.012 mm
Gap of a piston finger in a rod
0.008 – 0.050 mm
Valves
Diameter of a core of the valve:
  – inlet valve
6.959 – 6.977 mm
  – final valve
6.960 – 6.978 mm
Diameter of an opening of the directing valve plug
7.000 – 7.015 mm
Gap between a core and a guide of the valve:
  – inlet valve:
     • standard
0.023 – 0.056 mm
     • limit
0.080 mm
  – final valve:
     • standard
0.030 to 0.063 mm
     • limit
0.095 mm
Valve length:
  – inlet valve
104.05 mm
  – final valve
104.00 mm
 Diameter of a plate of the valve:
  – inlet valve
34.6 mm
  – final valve
30.6 mm
Block of cylinders
Diameter of the cylinder of the engine:
  – group of the sizes A
79.000 – 79.009 mm
  – group of the sizes B
79.010 – 79.019 mm
  – group of the sizes C
79.020 – 79.029 mm
Maximum ovality of the cylinder
0.015 mm
Maximum conicity of the cylinder
0.015 mm
Diameter of the radical bearing (without inserts):
  – group of the sizes 1
55.992 – 56.000 mm
  – group of the sizes 2
55.984 – 55.992 mm
  – group of the sizes 3
55.976 – 55.984 mm
Pistons and rings
Diameter of the piston:
  – group of the sizes A
78.975 – 78.984 mm
  – group of the sizes B
78.965 – 78.994 mm
  – group of the sizes C
78.995 – 79.004 mm
Piston gap in the cylinder
0.016 – 0.034 mm
Gaps of the lock of the piston ring (established in an opening):
  – top sealing ring
0.25 – 0.80 mm
  – lower sealing ring
0.20 – 0.80 mm
  – oil scraper ring
0.20 – 0.80 mm
Gap of a piston ring in the piston:
  – top sealing ring
0.12 – 0.18 mm
  – lower sealing ring
0.05 – 0.15 mm
  – oil scraper ring
0.02 – 0.15 mm
Thickness of a piston ring:
  – top sealing ring
2.0 mm
  – lower sealing ring
2.0 mm
  – oil scraper ring
3.0 mm
Rod
Side gap of the lower head of a rod
0.20 – 0.40 mm
The maximum admissible distinction of weight between rods
4 g
Bent shaft
Axial side play
0.06 – 0.30 mm
Diameters of radical necks:
  – 1st group of the sizes
51.928 – 51.938 mm
  – 2nd group of the sizes
51.918 – 51.928 mm
Working gap of the radical bearing
0.030 – 0.080 mm
Working gap of the bearing of the lower head of a rod
0.025 – 0.100 mm