2.1.2. Valves
Valves
Characteristic |
Value |
Eccentricity of cores of valves of rather working facet, no more, than a mm |
0,03 |
Facet corner |
45 ° + 15' |
The minimum height of a head of the valve to a working facet of M 102, not less, than a mm |
|
|
1,0 |
|
2,0 |
Characteristics of valves
Parameter, mm |
Engine model
|
|||
M 115.938
|
M 102.920, M 102.939
|
M 102.980, M 102.982
|
M 115.954
|
|
Width of a working facet of the valve | ||||
|
1,8 — 2,5 |
|||
|
1,5 — 2,5 |
|||
Nominal deepening of a head of the valve | ||||
|
0,5 |
1,7 |
1,2 |
0,1 |
|
1,6 |
1,6 |
0,5 |
1,6 |
Maximum admissible deepening of the valve | ||||
|
1,5 |
2,6 |
2,1 |
0,9 |
|
1,7 |
1,7 |
1,4 |
1,7 |
Diameter of a head of the valve | ||||
|
44,30 — 44,10 |
39,90 — 40,10 |
39,90 — 40,10 |
47,10 — 46,90 |
|
37,25 |
35,90 — 36,10 |
37,25 |
|
Valve head height | ||||
|
1,0 |
1,6 |
1,6 |
1,0 |
|
1,5 |
2,7 |
2,7 |
1,5 |
Diameter of a core of the valve | ||||
|
8,948 — 8,970 |
7,970 — 7,955 |
8,955 — 8,970 |
|
|
10,94 — 10,92 |
8,960 — 8,938 |
10,935 — 10,95 |
|
Valve core length | ||||
|
128,0 |
114,7 — 115,10 |
128 |
|
|
132,2 |
115,60 — 116,00 |
132,20 |
|
Parameter, mm
|
M 123.920, M 123.921
|
M 110.923
|
M 110.984, M 110.988
|
|
Width of a working facet of the valve | ||||
|
1,8 — 2,5 |
|||
|
1,5 — 2,5 |
1,5 — 2,0 |
||
Nominal deepening of a head of the valve | ||||
|
0,5 |
3,3 |
3,3 |
|
|
1,5 |
0,6 |
0,6 |
|
Maximum admissible deepening of the valve | ||||
|
1,5 |
4,2 |
4,2 |
|
|
1,6 |
1,5 |
1,5 |
|
Diameter of a head of the valve | ||||
|
41,30 — 41,10 |
45,10 — 45,30 |
|
|
|
37,00 — 37,20 |
|
||
Valve head height | ||||
|
1,0 |
1,0 |
1,0 |
|
|
2,0 |
|
||
Diameter of a core of the valve | ||||
|
8,955 — 8,970 |
|
||
|
10,935 — 10,95 |
10,94 — 10,96 |
|
|
Valve core length | ||||
|
128 |
115,0 |
|
|
|
132,20 |
118,00 |
|
Valvate springs
Inlet and final valves have on one identical spring of models M 102 and M 123 and two springs of models M 110 and M 115. Valvate springs of engines with adjustable gaps in the mechanism of the drive of valves differ from springs of valves of engines with hydraulic compensation of a gap. At assembly direct a color tag to a plate of a valve spring.
Characteristics of valvate springs
Color marking *
Engine model
|
|||
M 115.938
|
M 102.920, M 102.939
|
M 102.980, M 102.982
|
M 115.954
|
Territory. |
|
— К/Ф — the Territory. |
Territory. |
M 123.920,
M 123.921
|
M 110.923
|
M 110.984,
M 110.988
|
|
— the Territory. |
— |
— |
|
* The territory — red; Ф — B — violet-white; — To — yellowy-brown; Ф — the Territory — violet-red; — B — ochroleucous.
Diameter of a spring
Parameter, mm |
Engine model
|
|||
M 115.938
|
M 102.920, M 102.939
|
M 102.980, M 102.982
|
M 115.954
|
|
Diameter of a spring | ||||
|
33,2 — 33,7 |
33,9 |
34,2 |
33,1 — 33,4 |
|
22,2 |
— |
— |
22,29 |
Diameter of a wire of a spring | ||||
|
4,3 |
4,6 |
4,75 |
4,25 |
|
2,5 |
— |
— |
2,5 |
Diameter of a spring in a free state | ||||
|
50,0 |
48,5 |
49,0 |
50,0 |
|
45,0 |
— |
— |
45,0 |
Length and loading of an external spring | ||||
length, mm / under loading, kgf |
30,0/66,7 — 76,3 |
30,4/79,0 — 85,0 |
30,5/84,3 — 90,2 |
30,0/66,7 — 76,3 |
rated load, kgf |
60,9 |
71,0 |
76,0 |
— |
Length and loading of an internal spring | ||||
length, mm / under loading, kgf |
21,0/22,8 — 25,2 |
|
— |
21,0/22,8 — 25,2 |
rated load, kgf |
20,5 |
|
— |
20,5 |
Catalog No. of a spring | ||||
|
1290530220 |
— |
— |
1290530320 |
|
1080530022 |
— |
— |
1080530022 |
Parameter, mm
|
M 123.920, M 123.921
|
M 110.923
|
M 110.984, M 110.988
|
|
Diameter of a spring | ||||
|
34,1 — 34,5 |
33,8 — 34,1 |
|
|
|
— |
22,0 — 22,4 |
|
|
Diameter of a wire of a spring | ||||
|
4,75 |
4,6 |
4,6 |
|
|
— |
2,5 |
2,5 |
|
Diameter of a spring in a free state | ||||
|
49,0 |
49,5 |
|
|
|
— |
45,0 |
|
|
Length and loading of an external spring | ||||
length, mm / under loading, kgf |
30,5/86,0 — 92,0 |
30,5/84,0 — 92,0 |
||
rated load, kgf |
57,1 |
— |
— |
|
Length and loading of an internal spring | ||||
length, mm / under loading, kgf |
— |
21,5/22,8 — 25,2 |
||
rated load, kgf |
— |
20,5 |
|
|
Catalog No. of a spring | ||||
|
1230530020 |
1180530120 |
|
|
|
— |
1300530222 |
|
Yokes of the drive of valves
Yokes are made of steel and are identical to inlet and final valves. The basic surface of a yoke is subjected to superficial training. The gap between a yoke and a core of the valve is regulated by rotation of the adjusting screw with a lock-nut or compensated hydraulically. Oil comes to a hydraulic pusher under pressure from an axis and a rack of yokes.
Characteristic |
Value |
Internal diameter of an axis of a yoke, mm |
18,016 — 18,027 |
Diameter of an axis of a yoke, mm |
17,989 — 18,000 |
Radial gap between a yoke and an axis, mm |
0,016 — 0,038 |
Diameter of an opening in a camshaft support for a rack of a yoke, mm |
18,000 — 18,018 |
Hydraulic pushers
Characteristic |
Value |
Course of hydrocompensation, mm |
0,5 — 2,4 |
Thickness of adjusting washers, mm |
0,9; 1,5; 1,8; 2,2 |
Thickness of plates, mm |
1,0; 1,5 |