Opel Kadett E

1984-1991 of release

Repair and car operation

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

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The prevention

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

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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 °

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The prevention

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

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