Opel Vectra A

since 1988-1995 of release

Repair and car operation



Vektr A. Opel
+ 1. Maintenance instruction
+ 1.1 Maintenance
- 2. Engine
   2.2. General information
   2.3. System of ventilation of a case
   2.4. Compression check
   2.5. Repair operations on the engine established in the car
   2.6. The repair operations demanding removal of the engine
   2.7. Recommendations about engine removal
   + 2.8. Removal and engine installation without a transmission
   + 2.9. Removal and engine installation together with a transmission
   2.10. Replacement of support of the engine and transmission
   2.11. Engine repair
   + 2.12. A gear belt and pulleys (without the automatic mechanism of a tension)
   2.13. A gear belt and the tension mechanism (l models 1,4 and 1,6 except С16 NZ2)
   2.14. An opening in a back casing of a gear belt on l models 1,4 and 1,6
   2.15. Gear belt and tension mechanism (l NZ2 1,8 and 2,0 C16 model)
   2.16. Forward sealing ring of a camshaft
   2.17. Back sealing ring of a camshaft
   2.18. Camshaft and camshaft case
   + 2.19. Removal and installation of a head of the block of cylinders on the engine in the car
   2.20. Removal and installation of a head of the block of cylinders on the removed engine
   + 2.21. Repair of a head of the block of cylinders
   2.22. Cleaning and survey of a head of the block of cylinders
   2.23. Hydraulic pushers of valves
   2.24. Flywheel
   2.25. Replacement of a forward sealing ring of a cranked shaft
   2.26. Replacement of a back sealing ring of a cranked shaft
   2.27. Oil pallet
   2.28. Oil pump
   2.29. Repair of the oil pump
   2.30. Removal and installation of pistons and rods
   2.31. Check of pistons and rods
   + 2.32. Removal and installation of a cranked shaft
   2.33. Check of a cranked shaft
   2.34. Survey and gap check in radical and shatunny bearings
   2.35. Check of a working gap of the bearing
   2.36. Check of the block of cylinders of the engine
   2.37. Engine start after major maintenance
+ 3. Repair of DOHC engines
+ 4. Repair of the diesel engine
+ 5. Cooling system
+ 6. Fuel system
+ 7. A fuel and exhaust system of models with system of injection of fuel
+ 8. Exhaust system and system of fall of toxicity of exhaust gases
+ 9. Fuel systems of the diesel engine
+ 10. Engine electrosystems
+ 11. Transmission
+ 12. Mechanical transmission
+ 13. Automatic transmission
+ 14. Power shafts
+ 15. Brake system
+ 16. Suspension bracket
+ 17. Body
+ 18. Electric equipment
+ 19. Check of malfunctions



ENGINE

2. Repair of SOHC engines

2.1. Technical characteristics

GENERAL INFORMATION

The SOHC engine is an engine with one camshaft established in a head of the block of cylinders.

General information

Type
All models The engine with four cylinders rowed, with the water cooling, established cross-section in a forward part of the car. The drive of valves is carried out by one camshaft through the hydraulic pushers, a gear belt put in action
Codes of engines:
– 14 NV
1,4 l (1389 cm3)
– 16 SV
1,6 l (1598 cm3)
– X16 SZ
1,6 l (1598 cm3) "Ecotec"
– C16 NZ
1,6 l (1598 cm3) + catalyst
– C16 NZ2
1,6 l (1598 cm3) + catalyst
– 18 SV
1,8 l (1796 cm3)
– C18 NZ
1,8 l (1796 cm3) + catalyst
– 20 NE
2.0 l (1998 cm3)
– 20 SEH
2.0 l (1998 cm3) early SRi
– C20 NE
2.0 l (1998 cm3) + catalyst
Pistons:
Diameter (mm)
Course (mm)
– 14 NV
77,6
73,4
– 16 SV, C16 SV, C16 NZ and X16 SZ
79,0
81,5
– C16 NZ2
80,0
79,5
– 18 SV and C18 NZ
84,8
79,5
– 20 NE, 20 SEH and C20 NE
86,0
86,0
Extent of compression:
– 14 NV
9,4: 1
– 16 SV, X16 SZ, 18 SV and 20 SEH
10,0: 1
– C16 NZ, C16 NZ2, C18 NZ, 20 NE and C20 NE
9,2: 1
Maximum capacity:
– 14 NV
55 kW (75 h.p.) at 5600 rpm
– 16 SV
60 kW (82 h.p.) at 5400 rpm
– X16 SZ
52 kW (71 h.p.) at 5000 rpm
– C16 NZ and C16 NZ2
55 kW (75 h.p.) at 5200 rpm
– 18 SV and C18 NZ
66 kW (90 h.p.) at 5400 rpm
– 20 NE and C20 NE
85 kW (116 h.p.) at 5200 rpm
– 20 SEH
95 kW (129 h.p.) at 5600 rpm
Maximum torque:
– 14 NV
108 Nanometers at 3000 rpm
– X16 SZ
128 Nanometers at 2800 rpm
– 16 SV
130 Nanometers at 2600 rpm
– C16 NZ and C16 NZ2
125 Nanometers at 2800 rpm
– 18 SV
148 Nanometers at 2800 rpm
– C18 NZ
145 Nanometers at 3000 rpm
– 20 NE
175 Nanometers at 2600 rpm
– 20 SEH
180 Nanometers at 4600 rpm
– C20 NE
170 Nanometers at 2600 rpm
Operating procedure of cylinders:
all models 1–3–4–2 (the cylinder No. 1 is located from a gear belt)

Block of cylinders
Material
Cast iron
   • the most admissible ovality of cylinders
0,013 mm
   • the most admissible konusnost of cylinders
0,013 mm
   • the most admissible boring of cylinders
0,5 mm

Cranked shaft and bearings
Number of radical bearings
5
Diameter of radical necks, mm:
– 14 NV, 16 SV, C16 NZ and X16 SZ
   • the nominal
54,980-54,997
   • the increased 0,25 mm
54,730-54,747
   • the increased 0,50 mm
54,482-54,495
C16 NZ2, 18 SV, C18 NZ, 20 NE, C20 NE and 20 CEH
   • the nominal
57,947-57,995
   • the increased 0,25 mm
57,732-57,745
   • the increased 0,50 mm
57,482-57,495
Color label of loose leaves of radical bearings:
In a cover
In the block of cylinders
– 14 NV, 16 SV, C16 NZ and X16 SZ
   • the nominal
The brown
The green
   • uuvelichenny 0,25 mm
The brown/blue
The green/blue
   • the increased 0,50 mm
The brown/white
The green/white
– C16 NZ2, 18 SV, C18 NZ, 20 NE, C20 NE and 20 CEH
   • the nominal
The brown/green/white
   • the increased 0,25 mm
Brown/blue and Green/blue
   • the increased 0,50 mm
Brown/white and Green/white
Width of the central (persistent) radical neck, mm:
– 14 NV, 16 SV, C16 NZ and X16 SZ
   • the nominal
26,000-26,052
   • the increased 0,25 mm
26,200-26,252
   • the increased 0,50 mm
26,400-26,452
– C16 NZ2, 18 SV, C18 NZ, 20 NE, C20 NE and 20 CEH
   • the nominal
25,950-26,002
   • the increased 0,25 mm
26,150-26,202
   • the increased 0,50 mm
26,350-26,402
Diameter of a shatunny neck, mm:
– 14 NV, 16 SV, C16 NZ and X16 SZ
   • the nominal
42,971-42,987
   • the increased 0,25 mm
42,721-42,737
   • the increased 0,50 mm
42,741-42,487
– C16 NZ2, 18 SV, C18 NZ, 20 NE, C20 NE and 20 CEH
   • the nominal
48,970-48,988
   • the increased 0,25 mm
48,720-48,738
   • the increased 0,50 mm
48,470-48,488
Color label of loose leaves of shatunny bearings (all models):
– the nominal
No
– the increased 0,25 mm
The blue
– the increased 0,50 mm
The white
Ovality of radical and shatunny necks (all models)
At most 0,04 mm
Gap in radical bearings, mm:
– 14 NV, 16 SV, C16 NZ and X16 SZ
0,017-0,047
– C16 NZ2, 18 SV, C18 NZ, 20 NE, C20 NE and 20 CEH
0,015-0,040
Gap in shatunny bearings, mm:
– 14 NV, 16 SV, C16 NZ and X16 SZ
0,019-0,071
– C16 NZ2, 18 SV, C18 NZ, 20 NE, C20 NE and 20 CEH
0,006-0,031
Axial люфт cranked shaft, mm:
– 14 NV, 16 SV, C16 NZ and X16 SZ
0,1-0,2
– C16 NZ2, 18 SV, C18 NZ, 20 NE, C20 NE and 20 CEH
0,050-0,152
Lateral люфт rod (all models), mm
0,07-0,24

Diameters of pistons and cylinders, mm
Diameter of the cylinder
Diameter of the piston
ID label
14 NV:
– nominal size 1
77,56
77,54
6
 
77,57
77,55
7
 
77,58
77,56
8
 
77,60
77,58
00
– nominal size 2
77,59
77,57
99
 
77,62
77,60
02
– repair size of 0,5 mm
78,02
78,05
7 +0,5
16 SV, C16 NZ and X16 SZ:
– nominal size 1
78,95
78,93
5
 

78,96

78,94
6
 

78,97

87,95
7
 
87,98
78,96
8
– nominal size 2

78,99

78,97
99
 

79,00

78,98
00
 
79,01
78,99
01
 
79,02
79,00
02
– nominal size 3
79,03
79,01
03
 

79,04

79,02
04
 
79,05
79,03
05
 

79,06

79,04
06
– nominal size 4
79,07
79,05
07
 

79,08

79,06
08
 

79,09

79,07
09
 
79,10
79,08
1
 
79,48
79,45
7 +0,5
C16 NZ2:

– nominal size

79,98
98
 
79,90
99
 
80,00
00
 

80,01

01
 
80,02
02
18 SV and C18 NZ:
– nominal size 1
84,78
84,76
8
– nominal size 2
84,79
84,77
99
 

84,80

84,78
00
 
84,81
84,79
01
 
84,82
84,80
02
– repair size of 0,5 mm
85,27
85,25
7 +0,5
20 NE, C20 NE and 20 SEN:
– nominal size 1
85,98
85,96
8

– nominal size 2

85,99
85,97
99
 
86,00
85,98
00
 
86,01
85,99
01
 
86,02
86,00
02
– repair size of 0,5 mm
86,47
86,45
7 +0,5
Piston gap in the cylinder (all models)
0,02-0,04 mm

Piston rings

Quantity on one piston (all models)
2 kompressionny and 1 maslosjemny
Gap in the lock of a piston ring, mm:
– kompressionny
0,3-0,5
– maslosjemny (top and bottom ring)
0,4-1,4
– shift of locks of rings in relation to the lock of a maslosjemny ring
180 °

Head of the block of cylinders

Material (all models)
Easy alloy
The most admissible neploskosnost of the bottom surface of a head of the block of cylinders (all models)
0,025 mm
Height of a head of the block of cylinders (all models)
96,00 ± 0,25 mm
Width of a saddle of the valve, mm:
– 14 NV, 16 SV, C16 NZ, X16 SZ and C16 NZ2:
   • the inlet
1,3-1,5
   • the final
1,6-1,8
– 18 SV, C18 NZ, 20 NE, C20 NE and 20 CEH:
   • the inlet
1,0-1,5
   • the final
1,7-2,2

Camshaft


Diameter of necks of bearings of a cam-shaft
Normal, mm
Repair 0,1 mm

Diameter of the bearing of a cam-shaft:

– 14 NV, 16 SV, C16 NZ and X16 SZ
   • No. 1
39,500-39,525
   • No. 2
39,750-39,775
   • No. 3
40,000-40,025
   • No. 4
40,250-40,275
   • No. 5
40,500-40,525
– C16 NZ2, 18 SV, C18 NZ, 20 NE, C20 NE and 20 CEH:
   • No. 1
42,500-42,525
42,400-42,425
   • No. 2
42,750-42,775
42,650-42,675
   • No. 3
43,000-43,025
42,900-42,925
   • No. 4
43,250-43,275
43,150-43,175
   • No. 5
43,500-43,525
43,400-43,425
Lifting of a cam, mm:
– 14 NV (inlet and final)
6,12
– 16 SV and C16 NZ:
   • the inlet
5,61
   • the final
6,12
– C16 NZ2, 18 SV and C18 NZ:
   • the inlet
6,01
   • the final
6,39
– C20 NE and 20 NE (inlet and final)
6,67
– 20 SEN (inlet and final)
6,70
The most admissible curvature of an axis of a camshaft (all models)
0,04 mm
Axial люфт (all models)
0,09-0,21 mm

Gear belt (engines without the automatic mechanism of a tension)

Measurement of a tension of a belt by means of the special Opel KM-51 tool 0-and:
– 14 NV, 16 SV and C16 NZ:
   • new belt cold
5,5
   • new belt, warm
8,0
   • belt which was in use, cold
4,0
   • belt which was in use, warm
7,0
– 18 SV, C18 NZ, 20 NE, C20 NE and 20 SEH:
   • new belt cold
4,5
   • new belt, warm
7,5
   • belt which was in use, cold
2,5
   • belt which was in use, warm
7,0

Valves and directing valves

The inlet
The final
Full length of the new valve, mm:
– 14 NV
105,0
105,0
– 16 SV, X16 SZ and C16 NZ
101,5
101,5
– C16 NZ2
104,2
104,2
– 18 SV, C18 NZ, 20 NE, C20 NE and 20 SEH
104,2
104,0
Full minimum length of the valve, mm:
– 14 NV
104,6
104,6
– 16 SV, X16 SZ and C16 NZ
101,1
101,1
– C16 NZ2
103,8
103,8
– 18 SV, C18 NZ, 20 NE, C20 NE and 20 SEH
103,8
103,6
Diameter of a plate of the valve, mm:
– 14 NV
33,0
29,0
– 16 SV, X16 SZ, C16 NZ and C16 NZ2
38,0
31,0
– 18 SV, C18 NZ, 20 NE, C20 NE and 20 SEH
41,8
36,5
Diameter of a core of the valve (all engines), mm:
– the nominal
6,988-7,012
6,978-6,992
– repair size of +0,075 mm
7,073-7,087
7,053-7,067
– repair size of +0,150 mm
7,148-7,162
7,128-7,142
– repair size of +0,250 mm
7,248-7,262
7,228-7,242
Internal diameter of the directing plug of the valve (all engines), mm:
– the nominal
7,030-7,050
– repair size of +0,075 mm
7,105-7,125
– repair size of +0,150 mm
7,180-7,200
– repair size of +0,250 mm
7,280-7,300
Valve gap in a directing tulka (all engines), mm:
– the inlet
0,018-0,052
– the final
0,038-0,072
Corner of a working facet of a saddle of the valve:
all engines
44 °
Gap of valves:
all engines
Automatic adjustment by hydraulic pushers of valves

Flywheel

The most admissible lateral palpation of a gear wreath of a flywheel (all engines)
0,5 mm
The maximum size of repolishing of a surface interfaced to a coupling disk
0,3 mm


Greasing system

Gaps in the oil pump:
– between internal and external rotors (all engines)
0–0,2 mm
– axial люфт between the case and a rotor:
   • 14 NV, 16 SV, C16 NZ and X16 SZ
0,08-0,15 mm
   • C16 NZ2, 18 SV, C18 NZ, C20 NE and 20 SEH
0,03-0,10 mm
Pressure of oil on idling turns on the warm engine (all engines)
1,5 bar

Tightening moments

Zabornik of warmed-up air to a final collector
8 Nanometers
Fastening of the generator and inlet collector to an arm:
– 1,4 and 1,6 l except C16 NZ2
20 nanometers
– L C16 NZ2 1,8 and 2,0
18 Nanometers
Bolts of fastening of the generator to an arm (М8)
30 Nanometers
Bolts of fastening of the generator to an arm (М10)
40 Nanometers
Bolts of fastening of the generator to a bracket
25 Nanometers
Fastening of a cover of the shatunny bearing:
– 1,4 and 1,6 l except C16 NZ2:
   • stage 1
25 Nanometers
   • stage 2
To tighten on a corner 30 °
– L C16 NZ2 1,8 and 2,0:
   • stage 1
35 Nanometers
   • stage 2
To tighten on a corner 45 °
   • stage 3
To tighten on a corner 15 °
Cover of a head of the block of cylinders
8 Nanometers
Camshaft pulley
45 Nanometers
Persistent plate of fixing of a camshaft
8 Nanometers
Branch pipe to a thermostat casing:
– L C16 NZ2 1,8 and 2,0
8 Nanometers
The water pump to the block of cylinders:
– 1,4 and 1,6 l except C16 NZ2 (М6)
8 Nanometers
– C16 NZ2 1,8 and 2,0 of l (М8)
25 Nanometers
Sensor of provision of a cranked shaft:
– L C16 NZ2 1,8 and 2,0
13 Nanometers
Bolts of fastening of a head of the block цилиндров*:
– 1,4 and 1,6 l except C16 NZ2:
   • stage 1
25 Nanometers
   • stage 2
To tighten on a corner 60 °
   • stage 3
To tighten on a corner 60 °
   • stage 4
To tighten on a corner 60 °
– L C16 NZ2 1,8 and 2,0:
   • stage 1
25 Nanometers
   • stage 2
To tighten on a corner 90 °
   • stage 3
To tighten on a corner 90 °
   • stage 4
To tighten on a corner 90 °
Pulleys of an auxiliary driving and gear belt to a cranked shaft:
– 1,4 and 1,6 l except C16 NZ2:
   • stage 1
55 Nanometers
   • stage 2
To tighten on a corner 45 °
   • stage 3
To tighten on a corner 15 °
Pulleys of an auxiliary driving and gear belt to a cranked shaft
20 Nanometers
Pulley auxiliary driving to a pulley of a gear belt
20 Nanometers
The mechanism of a tension of a driving belt to an arm:
– 1,4 and 1,6 l except C16 NZ2
20 Nanometers
– L C16 NZ2 1,8 and 2,0
18 Nanometers
Arm of a support of the power unit to the block of cylinders
60 Nanometers
Arm to an arm of a support of the power unit
60 Nanometers
Arm of a support of the power unit to the bottom frame
40 Nanometers
Arm of the pump of the amplifier of a steering to an engine arm
60 Nanometers
Arm of a support power to a lateral frame
65 Nanometers
Final collector to a head of the block of cylinders
22 Nanometers
Reception exhaust pipe to a final collector
25 Nanometers
Drive plate to a cranked shaft
60 Nanometers
Flywheel to cranked валу*:
– 1,4 and 1,6 l except C16 NZ2:
   • stage 1
35 Nanometers
   • stage 2
To tighten on a corner 30 °
   • stage 3
To tighten on a corner 15 °
– L C16 NZ2 1,8 and 2,0:
   • stage 1
65 Nanometers
   • stage 2
To tighten on a corner 30 °
   • stage 3
To tighten on a corner 15 °
Forward casing of a gear belt to a back casing
4 Nanometers
The pumping-up fuel pump to a cover of a head of the block of cylinders
18 Nanometers
The directing plug and vyzhimny the bearing to a transmission
22 Nanometers
Thermofilter plugs to a head of the block of cylinders
30 Nanometers
Inlet collector to a head of the block of cylinders
22 Nanometers
The detonation sensor to the block of cylinders (X16 SZ)
13 Nanometers
Bolts of fastening of covers radical подшипника*:
– stage 1
50 Nanometers
– stage 2
To tighten on a corner 45 °
– stage 3
To tighten on a corner 15 °
The oil filter to the oil pump/block of cylinders
6 Nanometers
Arm of a maslopriyemny pipe to the block of cylinders
6 Nanometers
Maslopriyemny pipe to the oil pump
8 Nanometers
Oil pipelines to a radiator
22 Nanometers
The sensor of pressure of oil to the oil pump:
– 1,4 and 1,6 l except C16 NZ2
30 Nanometers
– L C16 NZ2 1,8 and 2,0
40 Nanometers
Perepuskna the valve to the oil pump
30 Nanometers
Back cover to the oil pump
6 Nanometers
The oil pump to the block of cylinders
6 Nanometers
The oxygen sensor to a final collector
30 Nanometers
Arm of the pump of the amplifier of a steering:
– L C16 NZ2 1,8 and 2,0.
18 Nanometers
The right arm of fastening of the power unit to the bottom frame.
65 Nanometers
Arm to the generator
25 Nanometers
Spark plugs
25 Nanometers
Starter to the block of cylinders (М10)
45 Nanometers
Starter to the block of cylinders (М12)
60 Nanometers
Oil pallet:
– 1,4 and 1,6 l except C16 NZ2
8 Nanometers
– L C16 NZ2 1,8 and 2,0
15 Nanometers
Masloslivny stopper
55 Nanometers
Arm to the block of cylinders
35 Nanometers
The sensor of the index of temperature of cooling liquid to a head of the block of cylinders
20 Nanometers
Thermostat casing:
– 1,4 and 1,6 l except C16 NZ2
10 Nanometers
– L C16 NZ2 1,8 and 2,0
15 Nanometers
The mechanism of a tension of a gear belt to the oil pump:
1,4 and 1,6 l except C16 NZ2
55 Nanometers
Casing of a gear belt to oil to a pump/cover of a head of the block of cylinders:
– 1,4 and 1,6 l except C16 NZ2
12 Nanometers
– L C16 NZ2 1,8 and 2,0
6 Nanometers
Pulley of a gear belt to a cranked shaft:
– L C16 NZ2 1,8 and 2,0
6 Nanometers
   • stage 1
130 Nanometers
   • stage 2
To tighten on a corner 40-50 °
Bolts of fastening of a transmission to the engine (М10)
45 Nanometers
Bolts of fastening of a transmission to the engine (М12)
60 Nanometers

* It is necessary to use only new bolts. The moments of a tightening of bolts of fastening of a head of the block of cylinders are specified only for bolts of the latest updating. When using bolts of early updating, the moment of a tightening of bolts is necessary for specifying at the dealer of Opel.