boot NISSAN NAVARA 2005 Repair Owner's Guide

POWER STEERING GEAR AND LINKAGE
PS-17
C
D
E
F
H
I
J
K
L
MA
B
PS
DISASSEMBLY
1. Remove cylinder tubes from gear housing assembly.
2. Remove rear cover cap from gear-sub assembly.
3. Using a rear cover wrench [SST: KV489Q0030] (A) to remove
rear cover from pinion assembly.
4. Remove O-ring A using a flat-bladed screwdriver, and pull out
rear cover.
5. Measure adjusting screw height “H”, and loosen adjusting
screw.
CAUTION:
lDo not loosen adjusting screw 2 turns or more.
lReplace steering gear assembly if adjusting screw is
loosened 2 turns or more and it is removed.
6. Remove pinion assembly from gear housing assembly.
7. Loosen outer socket lock nut, and remove outer socket.
8. Remove boot clamp, and then remove boot from inner socket.
CAUTION:
Do not damage inner socket and gear housing assembly
when removing boot. Inner socket and gear housing assembly must be replaced if inner socket
and gear housing assembly are damaged because it may cause foreign material interfusion.
9. Remove inner socket from gear housing assembly.
10. Drill out the clinching part of gear housing assembly (end cover
assemblyside)outerrimwitha3mm(0.12in)drillbit.[Drillfor
approximately 1.5 mm (0.059 in) depth.]
SGIA1331E
SGIA0508E
SGIA0624E
STC0013D

PS-18
POWER STEERING GEAR AND LINKAGE
11. Remove end cover assembly with a 45 mm (1.77 in) open head
(suitable tool).
CAUTION:
Do not damage rack assembly surface when removing.
Rack assembly must be replaced if damaged because it
may cause fluid leakage.
12. Pull rack assembly together with rack oil seal (outer side) out
from gear housing assembly.
CAUTION:
Do not damage cylinder inner wall when removing rack
assembly. Gear housing assembly must be replaced if dam-
aged because it may cause fluid leakage.
13. Heat rack Teflon ring to approximately 40°C(104°F) with a
dryer, and remove rack Teflon ring and O-ring B from rack
assembly.
CAUTION:
Do not damage rack assembly. Rack assembly must be
replaced if damaged because it may cause fluid leakage.
14. Push rack oil seal inside with a 29 mm (1.14 in) socket and an
extension bar to push out rack oil seal (inner side) from gear
housing assembly.
CAUTION:
Do not damage gear housing assembly and cylinder inner
wall. Gear housing assembly must be replaced if damaged
because it may cause fluid leakage.
INSPECTION AFTER DISASSEMBLY
Boot
Check boot for cracks, and replace it if a malfunction is detected.
Rack Assembly
Check rack for damage or wear, and replace it if a malfunction is detected.
Pinion Assembly
lCheck pinion assembly for damage or wear, and replace it if a malfunction is detected.
lRotate pinion and check for torque variation or rattle, and replace it if a malfunction is detected.
Gear Housing Assembly
Check gear housing assembly for damage and scratches (inner wall). Replace if there are.
Outer Socket and Inner Socket
1. Ball joint swinging torque
SST081B
SGIA0151E
SGIA0179E

POWER STEERING GEAR AND LINKAGE
PS-23
C
D
E
F
H
I
J
K
L
MA
B
PS
18. Set dial gauge as shown in the figure. Measure vertical move-
ment of rack assembly when pinion is turned clockwise with
torque of 19.6 N·m (2.0 kg-m, 14 ft-lb). Readjust adjusting screw
angle if the measured value is outside the standard. Replace
steering gear assembly if the measured value is still outside the
standard or adjusting screw rotating torque is 5 N·m (0.51 kg-m,
44 in-lb) or less.
19. Install large end of boot to gear housing assembly.
20. Install small end of boot to inner socket boot mounting groove.
21. Install boot clamps to boots, as shown in the figure.
SGIA1147E
Measuring pointRack axial direction 5 mm (0.20 in) from housing end surface
Rack radial direction Axial direction of the adjusting screw
Vertical movement 0.265 mm (0.0104 in)
SGIA1325E
AST139

PS-24
POWER STEERING GEAR AND LINKAGE
22. Crimp the large-diameter boot clamp using suitable tool.
23. Install cylinder tubes to gear housing assembly.
24. Adjust inner socket to standard length “L”, and then tighten lock
nut to the specified torque. Refer toPS-16, "
COMPONENT".
Check length of inner socket “L” again after tightening lock nut.
Make sure that the length is the standard.
CAUTION:
Adjust toe-in after this procedure. Length achieved after
toe-in adjustment is not necessary the above value.
RAC1133D
Inner socket length “L” : 79 mm (3.11 in)
SGIA0167E