Service Nissan Sunny with 1991 on 1997 of release in a body n-14.
1. The maintenance instruction
2. Maintenance service
3. Engines
3.1. The petrol engine in volume of 1,4 and 1,6 litres
3.2. The petrol engine in volume of 2,0 litres
3.2.1. Kinds of repair of the engine without dismantle from the car
3.2.1.1. Specifications
3.2.1.2. Compression check in engine cylinders
3.2.1.3. An order of installation of the piston of 1st cylinder in ВМТ a compression step
3.2.1.4. A cover of a head of the block of cylinders
3.2.1.5. A pulley коленвала
3.2.1.6. A cover of a chain drive of cam-shafts
3.2.1.7. A chain of a drive of cam-shafts
3.2.1.8. Натяжитель chains, успокоитель and drive asterisks
3.2.1.9. Cam-shafts
3.2.1.10. Levers of a drive of valves and hydraulic regulators
3.2.1.11. A head of cylinders
3.2.1.12. The oil pallet
3.2.1.13. The oil pump
3.2.1.14. Маслоохладитель
3.2.1.15. Epiploons коленвала
3.2.1.16. A flywheel (or a leading disk of the hydrotransformer)
3.2.1.17. Details of a suspension bracket of the power unit
3.2.2. Dismantle and engine major repairs
3.3. The diesel engine
4. Cooling system
5. Heating and ventilation system
6. Fuel and an exhaust system
7. System of start-up of the engine
8. Coupling
9. Transmissions
10. Semiaxes
11. Brakes
12. Suspension brackets and a steering
13. A body
14. An electric equipment
 




6ac69956



3-2-1-1-tekhnicheskie-dannye.html

3.2.1.1. Specifications


The engine (the general data)

Designation
SR
Engine code:
Inzhektornye engines with preliminary preparation of a fuel mix (with a uniform atomizer)
SR20Di
Engines with direct injection of fuel:
  – Models "Phase I"
SR20DÀ
  – Models "Phase II low-specification"
SR20Dе
  – Models "Phase II high-specification"
SR20DÀ
Working volume of cylinders
1998 sm/cube
Internal diameter of the cylinder
86,00 mm
Piston stroke
86,0 mm
Rotation direction коленвала
Clockwise (if to look on the right side of the car)
Finding of 1st cylinder
From outside chains of a drive of the mechanism timing
Engine operating procedure
1–3–4–2
Compression degree
9,8:1
Pressure of a compression in cylinders
Rating value:
  – Engines SR20Di and SR20Dе
12,26 kgs/sm/kv
  – Engines SR20DE
12,75 kgs/sm/kv
Maximum permissible pressure of a compression:
  – Engines SR20Di and SR20Dе
10,30 kgs/sm/kv
  – Engines SR20DE
10,79 kgs/sm/kv
Maximum permissible distinction of a compression in cylinders (for all engines)
1,0 kgs/sm/kv

Cam-shaft and hydraulic regulators

Drive
From a chain
Number of support of cam-shafts
5
Axial люфт cam-shafts:
  – The standard
0,055 – 0,139 mm
  – The limiting
0,20 mm

The sizes of cams

Inlet valves:
  – For engines SR20Di and SR20Dе
37,920 – 38,110 mm
  – For engines SR20DE
38,408 – 38,598 mm
Final valves (for all engines)
37,920 – 38,110 mm
Diameter of basic necks of cam-shafts
27,935 – 27,955 mm
Internal diameter of apertures under basic necks of a cam-shaft in a head of the block of cylinders
28,000 – 28,021 mm
Backlash in basic necks of a cam-shaft:
  – The standard
0,045 – 0,086 mm
  – The limiting
0,12 mm
Cam-shaft palpation:
  – The standard
No more than 0,02 mm
  – The limiting
0,1 mm
External diameter of a hydroregulator
16,980 – 16,993 mm
Internal diameter of an aperture under a hydroregulator in a head of the block of cylinders
17,000 – 17,020 mm
Backlash between a hydroregulator and an aperture
0,007 – 0,040 mm

System of greasing of the engine

Type of the oil pump
Шестеренчатый, with a drive from a sock коленвала
The minimum pressure of oil at working temperature of the engine:
  – Idling
Not below 0,78 kgs/sm/kv
  – At 3000 rpm:
     • for engines SR20Di and SR20Dе
4,0 kgs/sm/kv
     • for engines SR20DE
4,5 kgs/sm/kv
Backlashes of the oil pump:
  – A backlash between a conducted gear wheel and the pump case
0,11 – 0,20 mm
  – A backlash in gearing of teeths of leading and conducted gear wheels
No more than 0,18 mm
  – Axial люфт a conducted gear wheel
0,05 – 0,11 mm
  – Axial люфт a leading gear wheel
0,05 – 0,09 mm
  – A backlash between a fillet of a leading gear wheel and a cover of the oil pump
0,045 – 0,091 mm

The inhaling moments (in Н.м.)

Nuts of fastening of a cover of a head of the block of cylinders
10
Bolt of fastening of a pulley коленвала
147
Bolt of fastening of a cover of a chain drive газораспределительного the mechanism
7
Fastening nuts натяжителя chains
8
Bolts of fastening of a leading asterisk коленвала
147
Fastening bolts успокоителя chains
16
Bolt of an axis of a boot натяжителя chains
16
Bolts of covers of basic necks of a cam-shaft:
Bolts of fastening of a cover of a back neck of a cam-shaft of final valves
22
Bolts of other covers
11
Bolts of fastening of a head of the block of cylinders
The basic bolts:
  – 1st stage of an inhaling
39
  – 2nd stage of an inhaling
78
Completely to weaken bolts and again to tighten with a following moment:
  – 3rd stage of an inhaling
39 ± 5
  – 4th stage of an inhaling
To tighten on a corner 90 – 100 °
  – 5th stage of an inhaling
To tighten on a corner 90 – 100 °
Bolts М6
7
Nuts and bolts of sections of oil pallets:
Cast section from an aluminium alloy:
  – With numbers 1 – 16, an inhaling in the established sequence
18
  – With numbers 17 and 18, an inhaling in the established sequence
7
Steel stamped section
7
Drain stopper of the oil pallet
35
Bolts of the central longeron of a suspension bracket of the power unit
88
The oil pump:
  – Screws of a cover of the pump
5
  – A bolt of a cover of the pump
5
  – A bolt редукционного the valve
60
  – A bolt перепускного the valve
65
The central bolt маслоохладителя
39
Bolts of fastening of a flywheel (leading disk of the hydrotransformer)
88
Bolts of the holder of a back epiploon
8
Fastening nuts шатунных covers:
  – 1st stage of an inhaling
15
  – 2nd stage of an inhaling (at an inhaling a key with an angular scale)
To tighten on a corner 60 – 65 °
  – 2nd stage of an inhaling (at an inhaling динамометрическим a key without an angular scale)
40
Bolts of covers of radical bearings
50
  – 1st stage of an inhaling
35
  – 2nd stage of an inhaling (at an inhaling a key with an angular scale)
To tighten on a corner 45 – 50 °
  – 2nd stage of an inhaling (at an inhaling динамометрическим a key without an angular scale)
78
Bolts of fastening of the engine to a check point:
  – Bolts with a length less than 45 mm
19
  – Bolts with a length more than 55 mm
75
Fastening of details of the right suspension bracket of the power unit:
  – Bolts of fastening of an arm of a support to the engine
49
  – Bolts of fastening of a support to an engine arm
55
  – A coupling bolt of a support
49
Fastening of details of the left suspension bracket of the power unit:
  – A coupling bolt of a support
49
  – Bolts of fastening of a support of the power unit to a check point
49
Bolts of fastening of details of a forward suspension bracket of the power unit:
  – Bolts of fastening of an arm of a support to the engine
49
  – Support fastening to the central longeron (on cars the versatile person)
55
  – A coupling bolt of a support
70
Bolts of fastening of details of a back suspension bracket of the power unit:
  – Bolts of fastening of a back support to the central longeron
55
  – A coupling bolt of a support
79
  – Bolts of fastening of an arm of a support
69


3.2.1. Kinds of repair of the engine without dismantle from the car

3.2.1.2. Compression check in engine cylinders