Defender 90 NAS. Manual — part 5

04

GENERAL SPECIFICATION DATA

6

INFORMATION

SHIFT SPEEDS - AUTOMATIC ZF

OPERATION

SELECTOR

VEHICLE SPEED

ENGINE SPEED

POSITION

APPROX

APPROX RPM

KICKDOWN (KD)

MPH

KPH

KD4 - 3

D

92 - 100

149 - 164

KD3 - 2

3(D)

57 - 62

99 - 108

KD2 - 1

2(D,3)

30 - 37

48 - 61

KD3 - 4

D

N/A

N/A

KD2 - 3

D(3)

66 - 69

105 - 114

4750 - 5200

KD1 - 2

D(3,2)

37 - 44

61 - 70

4600 - 5250

FULL THROTTLE (FT)

FT4 - 3

D

67 - 73

107 -118

FT3 - 2

3(D)

44 - 53

70 - 80

FT3 - 4

D

81 - 88

130 - 141

3980 - 4330

FT2 - 3

D(3)

60 - 66

96 - 105

4350 - 4800

FT1 - 2

D(3,2)

32 - 37

52 - 61

3950 - 4650

PART THROTTLE (PT)

PT4 - 3

D

51 - 60

82 - 94

PT3 - 2

D(3)

32 - 41

53 - 65

PT2 - 1

D(3,2)

11 - 13

18 - 21

LIGHT THROTTLE (LT)

LT3 - 4

D

28 - 33

47 - 54

1430 - 1650

LT2 - 3

D(3)

20 - 24

32 - 38

1420 - 1820

LT1 - 2

D(3,2)

10 -11

15 - 18

1180 - 1220

ZERO THROTTLE (ZT)

ZT4 - 3

D

21 - 27

34 - 45

ZT3 - 2

D(3)

13 - 16

21 - 26

ZT2 - 1

D(3,2)

7 - 8

11 - 12

TORQUE CONVERTER

Lock up (IN)

D

56 - 59

89 - 94

1875 - 2000

Unlock (OUT)

D

54 -57

85 - 91

1825 - 1930

NOTE: The speeds given in the above chart are approximate and only intended as a guide. Maximum shift
changes should take place within these tolerance parameters.

GENERAL SPECIFICATION DATA

7

INFORMATION

STEERING

Power steering box

Make and type

Adwest Varamatic - worm and roller box

. . . . . . . . . . . . . . . . .

Ratio

Variable: straight ahead 19.3:1 to 17.2:1 on lock

. . . . . . . . . . . . . . . . . . . . .

Steering wheel turns lock to lock

3.75

. . . . . . . . . ..

Steering pump

Make and type

ZF Unicorn

. . . . . . . . . . . . . . . . .

Operating pressure:

bar

Straight ahead at idle - max

7.0

. . . . . . . . .

100

Full lock, left or right at idle - min

28

. . . . . . . .

400

Full lock, left or right at 1000 rev/min

70-77

. . . . . ..

1000-1100

Steering geometery

Steering wheel diameter

412mm

. . . . . . . . . . . . ..

16.25 in

Steering column type

Collapsible coupling

. . . . . . . . . . . . . ...

Steering damper

Double acting fitted between drag link and pinion

. . . . . . . . . . . . . . . ...

housing

Toe-out - measurement

0 to 2.0mm

. . . . . . . . . . . . .

0 to 0.08 in

Toe-out - included angle

0

o

to 0

o

20’

. . . . . . . . . . . . ..

Camber angle

0

o

*

. . . . . . . . . . . . . . . . ..

Castor angle

3

o

*

. . . . . . . . . . . . . . . . . .

Swivel pin inclination

7

o

*

. . . . . . . . . . . . . .

* Check with vehicle in static unladen condition with
23 l, 6 US gal of fuel. Rock the vehicle up and down at
the front to allow the suspension to take an
unstressed position.

SUSPENSION

Type

Coil springs controlled by telescopic dampers front

. . . . . . . . . . . . . . . . . . . . .

and rear.

Front

Transverse location of axle by Panhard rod, and fore

. . . . . . . . . . . . . . . . . . . . .

and aft location by two radius arms. Anti-roll bar fitted.

Rear

Fore and aft movement inhibited by two tubular trailing

. . . . . . . . . . . . . . . . . . . . .

links. Lateral location of axle by a centrally positioned
’A’ frame, upperlink assembly, bolted at the apex to a
ball joint mounting. Anti-roll bar fitted.

Road spring data

90 model weight

2550 Kg

. . . . . . . . . . . . . . . ...

5622 lb

Front

Driver side

NRC 9446 BLUE/GREEN

. . . . . . . . . . . . . . . ...

Passenger side

NRC 9447 BLUE/YELLOW

. . . . . . . . . . . . . ...

Rear

Driver side

NRC 9448 RED/BLUE

. . . . . . . . . . . . . . . ...

Passenger side

NRC 9449 YELLOW/WHITE

. . . . . . . . . . . . . ...

04

GENERAL SPECIFICATION DATA

8

INFORMATION

Shock absorbers

Type

Telescopic, double-acting non-adjustable

. . . . . . . . . . . . . . . . . . . . .

Bore diameter

35.47mm

. . . . . . . . . . . . . . . . ...

1.396 in

BRAKES

Front service brake

Caliper

AP Lockheed, four opposed pistons

. . . . . . . . . . . . . . . . . . . ..

Operation

Hydraulic, self adjusting

. . . . . . . . . . . . . . . . . . .

Disc

Ventilated, outboard

. . . . . . . . . . . . . . . . . . . . ..

Disc diameter

298mm

. . . . . . . . . . . . . . . . ...

11.73 in

Disc thickness

24mm

. . . . . . . . . . . . . . . . ..

0.945 in

Wear limit - per side of disc

1mm

. . . . . . . . . . . ..

0.04 in

Disc run-out maximum

0.15mm

. . . . . . . . . . . . . .

0.006 in

Pad area

58cm

2

. . . . . . . . . . . . . . . . . . ..

9.0 in

2

Total swept area - per disc

801cm

2

. . . . . . . . . . . ...

124 in

2

Pad material

Ferodo 3440FM non asbestos

. . . . . . . . . . . . . . . . . .

Pad minimum thickness

3mm

. . . . . . . . . . . . ...

0.12 in

Rear service brake

Caliper

AP Lockheed opposed piston

. . . . . . . . . . . . . . . . . . . ..

Operation

Hydraulic, self adjusting

. . . . . . . . . . . . . . . . . . .

Disc

Solid, outboard

. . . . . . . . . . . . . . . . . . . . ..

Disc diameter

290mm

. . . . . . . . . . . . . . . . ...

11.42 in

Disc thickness

12.5mm

. . . . . . . . . . . . . . . . ..

0.490 in

Wear limit - per side of disc

0.38mm

. . . . . . . . . . . ..

0.015 in

Disc run-out maximum

0.15mm

. . . . . . . . . . . . . .

0.006 in

Pad area

30.5cm

2

. . . . . . . . . . . . . . . . . . ..

4.73 in

2

Total swept area - per disc

694cm

2

. . . . . . . . . . . ...

106.98in

2

Pad minimum thickness

3mm

. . . . . . . . . . . . ...

0.12 in

Pad material

Ferodo 3440FM non asbestos

. . . . . . . . . . . . . . . . . .

Parking brake

Type

Mechanical, cable operated drum brake on the rear of

. . . . . . . . . . . . . . . . . . . . .

the transfer gearbox output shaft

Drum internal diameter

254 mm

. . . . . . . . . . . . . .

10.0 in

Width

70mm

. . . . . . . . . . . . . . . . . . . .

2.75 in

Pad material

Ferodo 3611 non asbestos

. . . . . . . . . . . . . . . . . .

Servo/master cylinder

Manufacturer

Lucas

. . . . . . . . . . . . . . . . .

Servo type

LSC 80, ratio 4.0:1

. . . . . . . . . . . . . . . . . .

Master cylinder tandem type - diameter

25.4 mm

. . . . . . ...

1.0 in

Pressure reducing valve, failure conscious:

Cut-in pressure

24 bar

. . . . . . . . . . . . . .

360 lbf/in

2

GENERAL SPECIFICATION DATA

9

INFORMATION

AIR CONDITIONING

System

CFC free expansion valve system

. . . . . . . . . . . . . . . . . . . .

Compressor

Nippon Denso 10PA17

. . . . . . . . . . . . . . . . . .

Refrigerant

R134a

. . . . . . . . . . . . . . . . . ...

Charge quantity

900 gm

±

30 gm

. . . . . . . . . . . . . ...

32 oz

±

1 oz

Refrigerant oil

180 ml

. . . . . . . . . . . . . . . . ...

6.3 oz

WIPER MOTORS

Windscreen wiper motor

Make/type

Lucas 14W uprated two speed

. . . . . . . . . . . . . . . . . .

Armature end float

0.1 to 0.2 mm

. . . . . . . . . . . . . . .

0.004 to 0.008 in

Brush length, minimum

4.8 mm

. . . . . . . . . . . . .

0.20 in

Brush spring tension

140 to 200 g

. . . . . . . . . . . . . .

5 to 7 oz

Resistance of armature winding at 16flC, 68flF
measured between adjacent commutatator segments

0.23 to 0.35 ohms

. .

Light running, rack disconnected: current at 13.5 V

2.0 A

. . .

Wiper speed, wet screen, 60 seconds from cold:

Low speed

45

±

3 rev/min

. . . . . . . . . . . . . . . ...

High speed

65

±

5 rev/min

. . . . . . . . . . . . . . . ..

Tailgate wiper motor

Make/type

IMOS (non-serviceable)

. . . . . . . . . . . . . . . . . .

Running current, wet screen at 20

°

C, 68

°

F ambient

1.0 to 2.8 A

. .

Wiper speed, wet screen at 20

°

C, 68

°

F ambient

37 to 43 cycles per minute

. . . .