Opel Kadett E

1984-1991 of release

Repair and car operation



Opel Kadett E
+ 1. The maintenance instruction
+ 2. Weekly checks and service in a way
+ 3. Maintenance service
- 4. The engine
   + 4.1. Engine OHV (with a camshaft in the block of cylinders)
   + 4.2. Engines OHC
   - 4.3. Engine DOHC with 16 valves
      4.3.1. A technical characteristics
      4.3.2. Compression check
      + 4.3.3. The operations demanding removal of the engine
      4.3.4. Removal of auxiliary components of the engine
      4.3.5. Removal and installation of the valve of adjustment of pressure of oil
      + 4.3.6. A gear belt
      4.3.7. Removal and installation of the mechanism of a tension of a gear belt and rollers
      4.3.8. Removal, check and installation of camshafts
      + 4.3.9. A head of the block of cylinders
      4.3.10. Removal and installation of the oil pallet and маслоотражательной plates
      + 4.3.11. The oil pump
      4.3.12. Removal and installation of the valve of the thermostat of an oil radiator
      + 4.3.13. Pistons and rods
      4.3.14. Removal and flywheel installation
      + 4.3.15. Replacement of sealing rings
      4.3.16. Removal, check and installation of bearings of a cranked shaft
      4.3.17. Check of components of the engine
      4.3.18. Removal and engine installation
      4.3.19. Start of the engine after major repairs
   + 4.4. Diesel engines 16D and 16DА
   + 4.5. Diesel engines of 1,7 l
+ 5. System of cooling, heating and ventilation
+ 6. Fuel and exhaust systems
+ 7. Start and gymnastics system
+ 8. Ignition system
+ 9. Coupling
+ 10. Transmissions and power shafts
+ 11. Brake system
+ 12. A suspension bracket and a steering
+ 13. A body
+ 14. Electric schemes





4.3.1. A technical characteristics
THE GENERAL DATA

Engines DOHC are engines with two camshafts located in a head of the block of cylinders.

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 two camshafts put in action by a gear belt, through hydraulic pushers
Codes of engines
20 XE, C20 XE or 20 XEJ
Diameter of cylinders
86,0 mm
Piston stroke
86,0 mm
Working volume
1998 sm3
Operating procedure of cylinders:
All models
1–3–4–2 (the cylinder №1 is located from outside a gear belt)
Direction of rotation of a cranked shaft
Clockwise
Compression degree
10,5: 1

The prevention

The engine code is specified by the first figures from engine number.


The block of cylinders

Diameter of cylinders of the engine
Diameter
Marks
The standard size 1
85,98 mm
8
85,99 mm
99
86,00 mm
00
86,01 mm
01
The standard size 2
86,02 mm
02
86,47 mm
7 + 0,5
86,48 mm
8 + 0,5
86,49 mm
9 + 0,5
86,50 mm
0 + 0,5
As much as possible admissible ovality of cylinders
0,013 mm
As much as possible admissible конусность cylinders
0,013 mm

Cranked shaft

Number of radical bearings
5
Diameter of radical necks
57,982 – 57,995 mm
Diameter шатунной necks
48,971 – 48,987 mm
The increased size
0,25 and 0,50 mm
Axial люфт a cranked shaft
0,07 – 0,3 mm
Working backlash of the radical bearing
0,015 – 0,04 mm
Working backlash шатунного the bearing
0,019 – 0,063 mm
Lateral backlash of the bottom head of a rod
0,07 – 0,24 mm
Colour identification of loose leaves:
  – The top loose leaves:
     • radical, standard
The brown
     • radical, increased by 0,25 mm
Brown / dark blue
     • radical, increased by 0,5 mm
The brown / white
     • шатунные, standard
No
     • шатунные, increased by 0,25 mm
Dark blue
     • шатунные, increased by 0,5 mm
The white
  – The bottom loose leaves:
     • radical, standard
The green
     • radical, increased by 0,25 mm
Green / dark blue
     • radical, increased by 0,5 mm
The green / white
     • шатунные, standard
No
     • шатунные, increased by 0,25 mm
Dark blue
     • шатунные, increased by 0,5 mm
The white
Ovality radical and шатунных necks
Maximum of 0,04 mm
Lateral люфт a cranked shaft (on the central neck)
Maximum of 0,03 mm

Pistons and piston rings

Diameter of the piston
On 0,03 mm it is less than diameter of the cylinder
Piston backlash in the cylinder (all models)
0,02 – 0,04 mm

Piston fingers

Length
61,5 mm
Diameter
21 mm
Backlash in the piston
0,003 – 0,010 mm
Backlash in a rod
0,015 – 0,030 mm

Head of the block of cylinders

The minimum height of a head of the block of cylinders after machining
135,63 mm
As much as possible admissible неплоскосность the bottom surface of a head of the block of cylinders (all models)
0,025 mm
Diameter of bearings of a camshaft
28,000 – 28,021 mm
Width of a saddle of the valve:
  – The inlet
1,0 – 1,4 mm
  – The final
1,4 – 1,8 mm

Camshafts

Drive
Gear belt
Number of bearings:
  – The inlet
5
  – The final
6
Diameter of a neck of the bearing
27,939 – 27,960 mm
Working backlash of a neck of the bearing
0,061 mm
Axial люфт
0,04 – 0,144 mm
Height of lifting of a cam
9,5 mm

The valve

Corner of a working facet
44 40'
Length:
  – The nominal
105 mm
  – The minimum
104,6 mm
Diameter of a plate:
  – The inlet
33 mm
  – The final
29 mm
Diameter of a core (standard):
  – The inlet
6,955 – 6,970 mm
  – The final
6,945 – 6,960 mm
Diameter of a core (the increased size)
0,075 and 0,150 mm
Backlash between a core and directing the valve:
  – The inlet
0,045 mm
  – The final
0,055 mm
Klapannyj backlash
It is automatically regulated by hydraulic pushers of the valve
Internal diameter of the directing plug of the valve:
  – The standard
7,000 – 7,015 mm
  – The increased size
0,075 and 0,150 mm
Height of installation of the directing plug of the valve
10,70 – 11,00 mm

The tightening moments

Starter to the block of cylinders
45 Nanometers
Starter arm to the block of cylinders
25 Nanometers
Collector nuts
20 Nanometers
Bolts of fastening of the generator to the block of cylinders
40 Nanometers
Arm of the pump of the amplifier of a steering
40 Nanometers
Bolts of fastening of a pulley auxiliary drive a belt of a cranked shaft to a pulley of a gear belt
20 Nanometers
The central bolt of fastening of a pulley of a cranked shaft:
  – A stage 1
250 Nanometers
  – A stage 2
To tighten on a corner 40 – 50
Bolts of fastening of covers of the radical bearing:
  – A stage 1
50 Nanometers
  – A stage 2
To tighten on a corner 40 – 50
Cover fastening шатунного the bearing:
  – A stage 1
35 Nanometers
  – A stage 2
To tighten on a corner 45 – 60
Support of the power unit (it is necessary to put the means interfering their unscrewing) on a carving of bolts
75 Nanometers
Fastening of covers of bearings of a camshaft:
  – M8
20 Nanometers
  – М9
10 Nanometers
Stopper oil plum
45 Nanometers
The oil pump to the block of cylinders
6 Nanometers
Bolts of fastening of the oil pallet (it is necessary to put the means interfering their unscrewing) on a carving of bolts
15 Nanometers
Bolts of fastening of a flywheel (it is necessary to put the means interfering their unscrewing) on a carving of bolts:
  – A stage 1
65 Nanometers
  – A stage 2
To tighten on a corner 30 – 45
Bolts of fastening of the water pump
25 Nanometers
Bolts of fastening of a pulley of a camshaft:
  – A stage 1
50 Nanometers
  – A stage 2
To tighten on a corner 40 – 50
The mechanism of a tension of a gear belt and directing rollers:
  – A stage 1
25 Nanometers
  – A stage 2
To tighten on a corner 45 – 60
Cover of a head of the block of cylinders
8 Nanometers
Bolts of fastening of a head of the block of cylinders:
  – A stage 1
25 Nanometers
  – A stage 2
To tighten on a corner 65
  – A stage 3
To tighten on a corner 65
  – A stage 4
To tighten on a corner 65
Warm up the engine to normal working temperature
To tighten on a corner 30

The prevention

All bolts which доворачиваются on a certain corner, should be replaced each time after their unscrewing.


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