1998 NISSAN PICK-UP Repair Manual

Inspection
PULLEY AND PULLEY SHAFT
lIf pulley is cracked or deformed, replace it.
lIf fluid leak is found around the pulley shaft, replace the oil
seal.
Disassembly
CAUTION:
lParts which can be disassembled are strictly limited.
Never disassemble parts other than those specified.
lDisassemble in as clean a place as possible.
lClean your hands before disassembly.
lDo not use rags; use nylon cloths or paper towels.
lWhen disassembling and reassembling, do not let for-
eign matter enter or contact the parts.
lRemove snap ring, then draw drive shaft out.
lBe careful not to drop drive shaft.
lRemove oil seal.
lBe careful not to damage front housing.
lRemove connector.
lBe careful not to drop control valve.
SST010B
SST034A
SST036A
POWER STEERING OIL PUMP
ST-35

Assembly
Assemble oil pump, noting the following instructions.
lMake sure O-rings and oil seal are properly installed.
lAlways install new O-rings and oil seal.
lBe careful of oil seal direction.
lCam ring, rotor and vanes must be replaced as a set if nec-
essary.
lWhen assembling, coat each part with ATF.
lPay attention to the direction of rotor.
lWhen assembling vanes to rotor, rounded surfaces of vanes
must face cam ring side.
lInsert pinV2into pin grooveV1of front housing and front side
plate. Then install cam ring
V3as shown at left.
Cam ring:
D
1is less than D2
SST038A
SST289A
SST843A
SST497A
POWER STEERING OIL PUMP
ST-36

Removal and Installation
Remove pitman arm with Tool.
SST727C
SST728C
SST100-A
STEERING LINKAGE
ST-37

Remove tie-rod from knuckle arm with Tool.
Disassembly
IDLER ARM ASSEMBLY
lApply coat of multi-purpose grease to bushing.
lPress bushing into idler body, and insert shaft of idler bracket
carefully until bushing protrudes.
CROSS ROD AND TIE-ROD
1. When tie-rod ball joints and tie-rod bar are separated, adjust
tie-rod length correctly.
Adjustment should be done between ball stud centers.
2. Lock tie-rod clamp nut so that ball joint on outer ball stud is
as follows with respect to that on inner ball stud.
L: Standard
343.9 mm (13.54 in) ... 2WD
297.6 mm (11.72 in) ... 4WD
CAUTION:
Make sure that tie-rod bars are screwed into tie-rod tube
more than 35 mm (1.38 in).
SST313AA
SST639A
SST729C
STEERING LINKAGE
Removal and Installation (Cont'd)
ST-38

Inspection
BALL JOINT AND SWIVEL JOINT
1. Check joints for play. If ball or swivel stud is worn and play
in axial direction is excessive or joint is hard to swing, replace
as a complete unit.
Swinging force (Measure point: Cotter pin hole) ``A'':
Ball joint
15.7 - 147.1 N (1.6 - 15.0 kg, 3.5 - 33.1 lb)
Rotating torque ``B'':
Ball joint
0.5 - 4.9 N´m (5 - 50 kg-cm, 4.3 - 43.4 in-lb)
Swivel joint
1.0 - 5.9 N´m (10 - 60 kg-cm, 8.7 - 52.1 in-lb)
Axial end play ``C'':
Ball joint and swivel joint
0mm(0in)
2. Check condition of dust cover. If it is cracked excessively,
replace as a complete unit.
CAUTION:
Be careful not to apply grease or oil to taper of joint.
IDLER ARM ASSEMBLY
lCheck rubber bushing of idler arm for breakage, wear or
play, and if necessary replace.
lLubricate idler arm assembly with multi-purpose grease, if
necessary.
CROSS ROD AND TIE-ROD
Check tie-rod and cross rod for breakage, bends or cracks, and
replace with a new one if necessary.
FIXING LOCATION
lCheck fixing location (nuts and cotter pins) for looseness,
play or breakage.
lWhen looseness or play is found, check for wear on tapered
portion of joints, gear arm of idler arm.
lWhen reassembling each joint, use new cotter pins.
SST827C
SFA817A
STEERING LINKAGE
ST-39

General Specifications
Steering column type
(Collapsible)Manual
steeringPower steering
2WD 2WD 4WD
Steering gear type VB66K PB48S PB59K
Turns of steering wheel on the
vehicle
(Lock-to-lock)5.8 3.6 3.7
Steering gear ratio24.4 -
26.816.5 17Steering wheel axial play
mm (in)0 (0)
Steering wheel play
mm (in)35 (1.38) or less
Inspection and Adjustment
STEERING COLUMN
Unit: mm (in)
Dimension ``L''
RHD KA24 engine 822.1 - 823.7 (32.37 - 32.43)
Except RHD KA24 engine 866.1 - 867.7 (34.10 - 34.16)
SST723C
SERVICE DATA AND SPECIFICATIONS (SDS)
ST-40

MANUAL STEERING GEAR
(Model: VB66K)
Worm bearing preload
N´m (kg-cm, in-lb)0.69 - 0.88
(7.0 - 9.0, 6.1 - 7.8)
Steering gear turning torque
N´m (kg-cm, in-lb)
360É position from straight-ahead
position0.69 - 0.88
(7.0 - 9.0, 6.1 - 7.8)
Straight-ahead position
(As compared with steering
wheel turned 360É)0.20 - 0.39
(2.0 - 4.0, 1.7 - 3.5) higher
Maximum turning torque 1.08 (11.0, 9.5)
Backlash at pitman arm top end (in a
straight-ahead position) mm (in)0 - 0.1 (0 - 0.004)
End play
(Between sector shaft and adjusting
screw) mm (in)0.1 (0.004) or less
Adjusting shim thicknessThickness
mm (in)Part number
1.95 (0.0768) 48129-84500
2.00 (0.0787) 48130-84500
2.05 (0.0807) 48131-84500
Oil capacity!(Imp pt) Approx. 0.62 (1-1/8)
STEERING LINKAGE
Applied model 2WD 4WD
Relay-rod swivel joint
Rotating torque
N´m (kg-cm, in-lb)Ð1.0 - 5.9
(10 - 60,
8.7 - 52.1)
Axial end play mm (in) Ð 0 (0)
Tie-rod & relay-rod ball joint
Swinging force at cotter pin
hole N (kg, lb)15.7 - 147.1
(1.6 - 15.0, 3.5 - 33.1)
Rotating torque
N´m (kg-cm, in-lb)0.5 - 4.9
(5 - 50, 4.3 - 43.4)
Axial end play mm (in) 0 (0)
Tie-rod standard length (L)
mm (in)343.9 (13.54) 297.6 (11.72)
POWER STEERING SYSTEM
(Model: PB48S)
Steering wheel turning force
(at 360É from neutral posi-
tion and circumference of
steering wheel) N (kg, lb)24.5 - 29.4 (2.5 - 3.0, 5.5 - 6.6)
Oil pump pressure
kPa (bar, kg/cm
2, psi)7,649 - 8,238 (76.5 - 82.4,
78 - 84, 1,109 - 1,194) at idling
Fluid capacity
m!(Imp fl oz)Approximately
900 - 1,000 (31.7 - 35.2)
Normal operating tempera-
ture ÉC (ÉF)60 - 80 (140 - 176)
Steering gear turning torque
N´m (kg-cm, in-lb)
360É position from
straight-ahead position0.7 - 1.2 (7 - 12, 6.1 - 10.4)
Straight-ahead position
(As compared with steer-
ing wheel turned 360É)0.1 - 0.4 (1 - 4, 0.9 - 3.5) higher
Maximum turning torque 1.1 - 1.6 (11 - 16, 9.5 - 13.9)
Backlash at pitman arm top
end (in a straight-
ahead position) mm (in)0 - 0.1 (0 - 0.004)
End play (Between sector
shaft and adjusting screw)
mm (in)0.01 - 0.03 (0.0004 - 0.0012)
Adjusting shim thicknessThickness
mm (in)Part number
1.575 - 1.600
(0.0620 - 0.0630)48213-B0100
1.550 - 1.575
(0.0610 - 0.0620)48214-B0100
1.525 - 1.550
(0.0600 - 0.0610)48215-B0100
1.500 - 1.525
(0.0591 - 0.0600)48216-B0100
1.475 - 1.500
(0.0581 - 0.0591)48217-B0100
1.450 - 1.475
(0.0571 - 0.0581)48218-B0100
SST736C
SERVICE DATA AND SPECIFICATIONS (SDS)
Inspection and Adjustment (Cont'd)
ST-41

POWER STEERING SYSTEM
(Model: PB59K)
Steering wheel turning force
(at 360É from neutral posi-
tion and circumference of
steering wheel) N (kg, lb)39 (4, 9) or less
Oil pump pressure
kPa (bar, kg/cm
2, psi)7,649 - 8,238
(76.5 - 82.4, 78 - 84, 1,109 - 1,194)
at idling
Fluid capacity
m!(Imp fl oz)Approximately 1,000 - 1,100
(35.2 - 38.7)
Normal operating tempera-
ture ÉC (ÉF)60 - 80 (140 - 176)
Steering gear turning torque
N´m (kg-cm, in-lb)
360É position from
straight-ahead position0.15 - 0.78 (1.5 - 8.0, 1.3 - 6.9)
Straight-ahead position
(As compared with steer-
ing wheel turned 360É)0.2 - 0.5 (2 - 5, 1.7 - 4.3) higher
Maximum turning torque 0.44 - 1.18 (4.5 - 12, 3.9 - 10.4)
Backlash at pitman arm top
end (in a straight-
ahead position) mm (in)0 - 0.1 (0 - 0.004)
End play (at sector shaft
end in neutral position)
mm (in)0.1 (0.004) or less
SERVICE DATA AND SPECIFICATIONS (SDS)
Inspection and Adjustment (Cont'd)
ST-42