3.5.18.1. Technical characteristics
| Head of the block of cylinders | |
| The most admissible neploskosnost of the lower surface of a head of the block of cylinders |
N/A
|
| Height of a head of the block of cylinders |
140 mm
|
| Valve saddle width |
1,4 – 1,8 mm
|
| Valves | |
| Height of the directing valve plug in a cylinder head |
11,20 – 11,50 mm
|
| Diameter of a core of the valve: | |
| – inlet valve: | |
| • nominal (K) |
5,955 – 5,970 mm
|
| • the 1st increased size (0,075 mm – K1) |
6,030 – 6,045 mm
|
| • the 2nd increased size (0,150 mm – K2) |
6,105 – 6,120 mm
|
| – final valve: | |
| • nominal (K) |
5,945 – 5,960 mm
|
| • the 1st increased size (0,075 mm – K1) |
6,020 – 6,035 mm
|
| • the 2nd increased size (0,150 mm – K2) |
6,095 – 6,110 mm
|
| Valve core exit |
less than 0,03 mm
|
| Diameter of an opening of the directing valve plug: | |
| – nominal (K) |
6,000 – 6,012 mm
|
| – the 1st increased size (0,075 mm – K1) |
6,075 – 6,090 mm
|
| – the 2nd increased size (0,150 mm – K2) |
6,150 – 6,165 mm
|
| Gap between a core and a guide of the valve |
N/A
|
| Valve length: | |
| – new |
97,1 – 97,2 mm
|
| – minimum |
96,9 – 97,0 mm
|
| Diameter of a plate of the valve: | |
| – inlet valve |
28,9 – 29,1 mm
|
| – final valve |
25,9 – 26,1 mm
|
| Block of cylinders | |
| The most admissible neploskosnost |
N/A
|
| Diameters of cylinders: | |
| – standard: | |
| • group of the sizes 8 |
83,975 – 83,985 mm
|
| • group of the sizes 99 |
83,985 – 83,995 mm
|
| • group of the sizes 00 |
83,995 – 84,005 mm
|
| • group of the sizes 01 |
84,005 – 84,015 mm
|
| • group of the sizes 02 |
84,015 – 84,025 mm
|
| – the increased size (0,5 mm) |
N/A
|
| Maximum ovality of the cylinder |
N/A
|
| Maximum conicity of the cylinder |
N/A
|
| Pistons and rings | |
| Diameter of the piston: | |
| – standard: | |
| • group of the sizes 8 |
N/A
|
| • group of the sizes 99 |
N/A
|
| • group of the sizes 00 |
N/A
|
| • group of the sizes 01 |
N/A
|
| • group of the sizes 02 |
N/A
|
| – the increased size (0,5 mm) |
N/A
|
| Piston gap in the cylinder |
N/A
|
| Gaps of the lock of the piston ring (established in an opening): | |
| – top and lower sealing rings |
0,3 – 0,5 mm
|
| – oil scraper ring |
0,4 – 1,4 mm
|
| Gap of a piston ring in the piston: | |
| – top and lower sealing rings |
0,02 – 0,04 mm
|
| – oil scraper ring |
0,01 – 0,03 mm
|
| Thickness of a piston ring: | |
| – top sealing ring: | |
| • X20DTL engine |
2,00 mm
|
| • X20DTH engine |
2,50 mm
|
| – lower sealing ring: | |
| • X20DTL engine |
1,75 mm
|
| • X20DTH engine |
2,00 mm
|
| – oil scraper ring |
3,0 mm
|
| Piston fingers | |
| Diameter |
29 mm
|
| Length |
68 mm
|
| Rod | |
| Side gap of the lower head of a rod |
0,07 – 0,28 mm
|
| Bent shaft | |
| Axial side play |
0,05 – 0,15 mm
|
| Diameters of radical necks: | |
| – 1st group of the sizes (green) |
67,966 – 67,974 mm
|
| – 2nd group of the sizes (brown) |
67,974 – 67,982 mm
|
| – 1st reduced (0,25 mm) |
67,716 – 67,732 mm
|
| – the 2nd reduced (0,50 mm) |
67,466 – 67,482 mm
|
| Diameters of conrod necks: | |
| – standard |
48,971 – 48,990 mm
|
| – 1st reduced (0,25 mm) |
48,721 – 48,740 mm
|
| – the 2nd reduced (0,50 mm) |
48,471 – 48,490 mm
|
| Maximum ovality |
0,03 mm
|
| Maximum conicity |
N/A
|
| Working gap of the radical bearing |
0,016 – 0,069 mm
|
| Working gap of the bearing of the lower head of a rod |
0,010 – 0,061 mm
|