Ford Sierra



Ford Sierra
1.2. Car identification
2. Maintenance service
- 3. The general data
   - 3.1. Cars with petrol engines
      3.1.1. Weights and transfer numbers
      3.1.2. Operational liquids
      - 3.1.3. Changes in a design of the car with 1984 to 1986
         3.1.3.1. The engine
         3.1.3.2. A head of the block of cylinders
         3.1.3.3. The block of cylinders of the engine
         3.1.3.4. The Krivoshipno-shatunnyj mechanism
         3.1.3.5. A cranked shaft
         3.1.3.6. System timing
         3.1.3.7. An engine mount
         3.1.3.8. Cooling system
          3.1.3.9. The carburettor
         3.1.3.10. System of injection of fuel
         3.1.3.11. Ignition system
         3.1.3.12. Coupling
         3.1.3.13. A mechanical four-speed transmission
         3.1.3.14. A mechanical five-speed transmission
         - 3.1.3.15. Automatic transmission Ford A 4 LD
            3.1.3.15.1. Technical characteristics
            3.1.3.15.2. Service and repair
            3.1.3.15.3. Changes in a design of an automatic transmission
         3.1.3.16. A power shaft and the back bridge
         3.1.3.17. System of a steering with the hydraulic booster
         3.1.3.18. A forward suspension bracket
         3.1.3.19. A back suspension bracket
         3.1.3.20. Brake system
          3.1.3.21. The electric equipment
         3.1.3.22. The general data
       3.1.4. Changes in a design of the car with 1987 to 1989
       3.1.5. Changes in a design of the car with 1990 till February, 1993
    3.2. Cars with diesel engines
4. Engines
5. Coupling
6. Transmissions
7. A kardannyj shaft and the back bridge
8. A steering
9. Suspension brackets
10. Brake system
11. A body
12. An electric equipment


3.1.3.15. Automatic transmission Ford A 4 LD

3.1.3.15.1. Technical characteristics
THE GENERAL DATA

Elements of automatic transmission Ford And 4 LD

1 – the oil pallet,
2 – the receiver of oil,
3 – linings,
4 – a drive of a reverse gear,
5 – hydrokinetic knot of management,
6 – a cover and consolidations,
7 – a drive of forward transfer,
8 – a drive average transfers,
9 – a vacuum regulator,
10 – the valve of acceleration,
11 – the switch безопастности,
12 – a blocking ratchet and the blocking mechanism on parking,
13 – a sealing ring,
14 – back картер transmissions,
14а – a lining,
15 – a latch of the mechanism of blocking
On parking,
16 – a secondary shaft,
17 – a regulator,
18 – sealing rings Viton,
19 – a nave of a regulator with a gear wheel of the mechanism of blocking on parking,
20 – a ring,
21 – average картер transmissions,
22 – a lining of the oil pallet,
23 – back coupling,
24 – a ring,
25 – a tape of a brake,
26 – a drum of a brake,
27 – back planetary transfer,
28 – a lock ring,
28а – a lining,
29 – solar gear wheels,
30 – картер forward planetary transfer,
31 – forward planetary transfer,
32 – the needle bearing,
32а and 33 – rings,
34 – forward coupling,
35 – sealing rings,
36 – multidisk coupling of direct transfer,
37 – a persistent lining,
37а – sealing rings,
38 – картер average planetary transfer,
39 – a persistent lining,
40 – average planetary transfer,
41 – unidirectional coupling,
41а – the needle bearing,
42 – multidisk coupling,
43 – a lining,
44 – a persistent lining,
45 – the oil pump,
45а – sealing rings,
45b – a sealing ring of a shaft of the oil pump,
46 – a gear wheel of the oil pump,
47 – an intermediate plate,
47а – a lining of an intermediate plate,
48 – картер hydrokinetic transfer,
48а – a lining,
49 – a target shaft,
50 – hydrokinetic transfer

From model 1985 the version of the cars equipped with automatic four-speed transmission Ford A 4 LD is entered. This transmission is equipped муфтой blocking hydrokinetic transfer. Its three first transfers correspond to transfers of three-stage automatic transmission Ford C 3, and 4ая transfer is надпередачей (has transfer number increasing number of turns).

MECHANISM KICK-DOWN CABLE

Originally in automatic transmissions Ford A 4 LD management of the mechanism kick-down was mechanical (fig. Adjustment of a cable of the mechanism kick-down in 1st version of execution see).

Since May, 1986 (a code of date of manufacturing "GJ") the mechanism kick-down copes the electromagnetic valve which provides more exact reduction of transfers.

DISTINCTIONS BETWEEN AUTOMATIC TRANSMISSIONS WITH 3 AND AND 4 LD

In a four-speed transmission And 4 LD after inclusion 3 and 4th transfers there comes blocking of hydrokinetic transfer thanks to what oil heating in a transmission, and also consumption of fuel by the engine decreases. The fourth transfer has increasing number of transfer which is at the bottom of that the number of turns of the engine on 25 % is less, than on 3 (direct) transfer at the same speed of movement.

Pressing an accelerator pedal against the stop (kick-down) causes automatic switching of transfer on 3rd. It allows to achieve the big accelerations and the maximum speed of movement.

Specifications

Mark and type
Ford A 4 LD
Hydrokinetic transfer
Trilock with blocking coupling
Number of hydrokinetic transfer
2,8
Oil radiator
The tubular

CONTROL PARAMETERS

Control pressure of oil (кПа)

Position of the lever of a gear change
Pressure idling
Давление* At 1600 rpm
"R"
450 – 550
1850 – 2200
"P" And "N"
350 – 430
"DE"; "D"; "2" and "1"
350 – 430
1100 – 1300

* Pressure at test of an overload of the engine

Number of turns of the engine at overload test – 2000–2900 rpm.

Speeds of movement at which there is a gear change

Pedal position
Gear change
Accelerator
1 – 2
2 – 3
3 – 2
2 – 1
The accelerator pedal is pressed against the stop
5800 200 rpm
5800 200 rpm
75 km/h
The accelerator pedal is pressed on 3/4
50 km/h
The accelerator pedal is not pressed
90 km/h (the lever in position "2")
Between 60 (the lever in position "1")
Numbers of turns resulted in the table concern the engine.

Numbers of transfers

Transfer
Transfer number
Full number of transfer with the main transfer with number
3,62*
3,38 **
1
2,474
8,96
8,36
2
1,474
5,34
4,98
3
1,000
3,62
3,38
4
0,749
2,71
2,53
Backing
2,111
7,64
7.14

* Cars Ford Sierra 1,8 (the carburettor engine) and 2,0i (the engine with fuel injection.

** In cars Ford Sierra 2,0 (the carburettor engine).

Greasing

Quantity of oil
8,5 дм3
Type
Oil for automatic transmissions SQM 2C 9010 A (oil for transfers CJ)

The tightening moments

Carter of hydrokinetic transfer to the engine
30 – 37 Nanometers
Carter of hydrokinetic transfer to forward картеру an automatic transmission
36 – 53 Nanometers
Hydraulic knot of management
9 – 13 Nanometers
Counternut of a bolt of adjustment of a tension of a tape of a brake
47 – 61 Nanometers
Bolt of the intermediate holder
27 – 40 Nanometers