power steering NISSAN ALMERA 2001 Repair Manual

SST863C
4. Install center bushing and rack oil seal with rack assembly.
SST321B
5. Insert rack oil seal and end cover assembly to rack. Then
tighten end cover assembly.
SST073B
6. Fasten end cover assembly to gear housing by staking.
SST086BA
7. Set rack gear in neutral position.
Rack stroke ªSº:
Refer to SDS, ST-34.
SST880C
8. Install adjustment shims and O-rings to gear sub-assembly.
+Install the same number of adjustment shims as before,
regardless of whether or not gear sub-assembly is replaced.
+Discard old O-rings; replace with new ones.
9. Tighten gear subassembly securing bolts to specified tighten-
ing torque.
POWER STEERING GEAR AND LINKAGE
Assembly (Cont'd)
ST-21

SST865C
10. Ensure that the rack is centered. Install rear cover cap so that
its protrusion is positioned as shown in figure.
SST087B
11. Install diaphragm spring into gear housing.
+Always install retainer, spring washer and diaphragm spring in
that order.
+Make sure convex end (painted white) of diaphragm spring
faces outward when installing.
12. Install spring seat retainer spring and adjusting screw tempo-
rarily.
SST866C
13. Install lock plate to rack.
a. Temporarily install spacer ring to rack.
Discard old spacer ring; replace with a new one.
b. Install lock plate to inner socket.
Discard old lock plate; replace with a new one.
c. Apply a coat of locking sealant to inner socket threads. Screw
inner socket into rack and tighten to specified torque.
d. Clinch lock plate at rack groove location (at two points).
e. Install spacer ring to lock plate as shown in the Figure at left.
Be careful not to damage spacer ring during installation
SST867C
14. Tighten outer socket lock nut.
Tie-rod length ªLº:
Refer to SDS, ST-34.
SST086BA
15. Measure rack stroke.
Rack stroke ªSº:
Refer to SDS, ST-34.
POWER STEERING GEAR AND LINKAGE
Assembly (Cont'd)
ST-22

SST967A
16. Before installing boot, coat the contact surfaces between boot
and tie-rod with grease.
SST868C
17. Install boot bands.
+Securely install boot band to boot groove and clinch the root
section of the trapezoidal area.
+Make sure that there is a clearance of 3.5 mm (0.138 in) or less
at the clinched section of the boot band. Refer to the Figure at
left.
SST869C
+After installing gear in vehicle, make sure that the clinched
section of boot band is positioned toward the rear of vehicle (to
prevent interference with adjacent parts).
SST719C
AdjustmentNJST0026Adjust pinion rotating torque as follows:
1. Set rack to the neutral position without fluid in the gear.
2. Coat the adjusting screw with locking sealant and screw it in.
3. Lightly tighten lock nut.
4. Tighten adjusting screw to a torque of 4.9 to 5.9 N´m (50 to 60
kg-cm, 43 to 52 in-lb).
5. Loosen adjusting screw, then retighten it to 0.2 N´m (2 kg-cm,
1.7 in-lb).
SST862CB
6. Move rack over its entire stroke several times.
7. Measure pinion rotating torque within the range of 180É from
neutral position.
Stop the gear at the point of maximum torque.
8. Loosen adjusting screw, then retighten it to 4.9 N´m (50 kg-cm,
43 in-lb).
9. Loosen adjusting screw by 50É to 70É.
POWER STEERING GEAR AND LINKAGE
Assembly (Cont'd)
ST-23

SST713C
10. Prevent adjusting screw from turning, and tighten lock nut to
specified torque.
SST090B
11. Check rack sliding force on vehicle as follows:
a. Install steering gear onto vehicle, but do not connect tie-rod to
knuckle arm.
b. Connect all piping and fill with steering fluid.
c. Start engine and bleed air completely.
d. Disconnect steering column lower joint from the gear.
e. Keep engine at idle and make sure steering fluid has reached
normal operating temperature.
f. Pull tie-rod slowly to move it from neutral position to±11.5 mm
(±0.453 in) at speed of 3.5 mm (0.138 in)/s. Check that rack
sliding force is within specification.
Average rack sliding force:
Sedan
152 - 240 N (15.5 - 24.5 kg, 34.2 - 54.0 lb)
Hatchback
132 - 308 N (13.5 - 31.4 kg, 30 - 69 lb)
Maximum force deviation:
Sedan
98 N (10 kg, 22 lb)
Hatchback
176 N (17.9 kg, 39 lb)
g. Check sliding force outside above range at rack speed of 40
mm (1.57 in)/s.
Maximum rack sliding force (Sedan only):
294 N (30 kg, 66 lb)
Maximum force deviation (Sedan only):
147 N (15 kg, 33 lb)
+If rack sliding force is not within specification, readjust by
repeating adjustment procedure from the beginning.
+If rack sliding force is still out of specification after
readjustment, gear assembly needs to be replaced.
POWER STEERING GEAR AND LINKAGE
Adjustment (Cont'd)
ST-24

ComponentsNJST0027
SST881CA
1. Pulley
2. Bracket
3. Drive shaft seal
4. Inlet connector
5. Inlet connector seal
6. Front housing
7. Flow control valve spring8. Flow control A valve
9. Dowel pin
10. Flow control B valve assy
11. Front side plate
12. Cartridge
13. Rotor
14. Vane15. Rotor snap ring
16. Rear side plate
17. Side plate inner seal
18. Side plate outer seal
19. Body seal
20. Rear body
SST984A
Pre-disassembly InspectionNJST0028Disassemble the power steering oil pump only if the following items
are found.
+Oil leak from any point shown in the figure
+Deformed or damaged pulley
+Poor performance
POWER STEERING OIL PUMP (QG ENGINE)
Components
ST-25

DisassemblyNJST0029CAUTION:
+The power steering pump cannot be disassembled on
Hatchback with QG engine. If it is faulty, replae with a new
assembly.
+Parts which can be disassembled are strictly limited.
Never disassemble parts other than those specified.
+Disassemble in as clean a place as possible.
+Clean your hands before disassembly.
+Do not use rags; use nylon cloths or paper towels.
+Follow the procedures and cautions in the Service
Manual.
+When disassembling and reassembling, do not let foreign
matter enter or contact the parts.
SST010B
+Remove snap ring, then draw drive shaft out.
Be careful not to drop drive shaft.
SST034A
+Remove oil seal.
Be careful not to damage front housing.
SST036A
+Remove connector and flow control valve with spring.
Be careful not to drop flow control valve.
Do not disassemble flow control valve.
POWER STEERING OIL PUMP (QG ENGINE)
Disassembly
ST-26

InspectionNJST0030+If pulley is cracked or deformed, replace it.
+If an oil leak is found around pulley shaft oil seal, replace the
seal.
+If serration on pulley or pulley shaft is deformed or worn,
replace it.
SST038A
AssemblyNJST0031Assemble oil pump, noting the following instructions.
+Make sure O-rings and oil seal are properly installed.
+Always install new O-rings and oil seal.
+Be careful of oil seal direction.
+Cam ring, rotor and vanes must be replaced as a set if neces-
sary.
+Coat each part with DEXRON
TMIII or equivalent when assem-
bling.
SST289A
+Pay attention to the direction of rotor.
SST843A
+When assembling vanes to rotor, rounded surfaces of vanes
must face cam ring side.
POWER STEERING OIL PUMP (QG ENGINE)
Inspection
ST-27

SST472C
+Insert pin 2 into pin groove 1 of front housing and front side
plate. Then install cam ring 3 as shown at left.
Cam ring:
D
1is less than D2.
POWER STEERING OIL PUMP (QG ENGINE)
Assembly (Cont'd)
ST-28

ComponentsNJST0038
SST882CA
1. Rear bracket
2. Rear body
3. Dowel pin
4. Side plate seal
5. Cam ring
6. Vane
7. Rotor
8. Side plate9. O-ring (Outer)
10. O-ring (Inner)
11. Front body
12. Drive shaft rear oil seal
13. Drive shaft front oil seal
14. Drive shaft
15. Snap ring
16. O-ring17. Outlet connector
18. Connector seal
19. Flow control valve
20. Flow control valve spring
21. Inlet connector
22. O-ring
23. Washer
SST883C
Pre-disassembly InspectionNJST0039Disassemble the power steering oil pump only if the following items
are found.
+Oil leak from any point shown in the figure
+Poor performance
POWER STEERING OIL PUMP (YD ENGINE)
Components
ST-29

SST884C
Removal and InstallationNJST00401. Remove chain case cover.
SST885C
2. Revolving crank pulley, set tool.
3. Fix tool with chain cover fixing bolts.
4. Using suitable tool, remove sprocket fixing nut and washer.
Do not remove Tool while power steering oil pump is
removed.
SST886C
5. Remove power steering pump fixing bolts, then remove it.
SST890C
+Apply Gasket to the installation surface of the engine chain
case cover as shown in the figure before installing the chain
case cover to the engine.
+Bleed air after installation.
Refer to ST-8.
DisassemblyNJST0041CAUTION:
+Parts which can be disassembled are strictly limited.
Never disassemble parts other than those specified.
+Disassemble in as clean a place as possible.
+Clean your hands before disassembly.
+Do not use rags; use nylon cloths or paper towels.
+Follow the procedure and cautions in the Service Manual.
+When disassembling and reassembling, do not let foreign
matter enter or contact the parts.
POWER STEERING OIL PUMP (YD ENGINE)
Removal and Installation
ST-30