Page 854 of 1395
Pump noiseGrating nois€trom pump
Pump noise
Raftle or chattering
Check the fluid lev€1.lt low, fill the reservoir to theproper level. and check for leaks.Tighten or roplace as necessary,
Cavitation caused by air bubblesin the fluid.
Check for a crushed inlet hose ora loose hose clamp allowing airinto the suction side of the system. Check the reservoir forcracks. Tighten or replace as nec-
Check the drive shaft oil seal.
Pump noise up to 2 - 3 minutesafter starting in cold weather isnormal, Compare pump noise atoperatrng temperature to anothervehicle.
ll pump noise is abnormally loud,remove and inspect the pump forwear and damage (see page 17-251.
Tighten or replace the pulley.lI shaft is loose, replace thepump.
17-9
www.emanualpro.com
Page 855 of 1395

Troubleshooting
Fluid Leaks
Check the gearbox assembly for oil leaks carefully. Oil can leak out ot various points, depending on location of the faulty
oil seals/seal rings. Check the following before removing the gearbox from the frame.
Steering GearboxLeaking from the oil seal on thetop of the valve housing.Replace the valve oil seal fromthe valve housing.
Leaking from cylinder end intoleft tie rod boot.Replace the valve oil seal fromthe pinion shaft.
Replace the cylinder end seal onthe valve body unit side.
Leaking from cylinder end intoright tie-rod boot.Replace the cylinder end seal onthe cylinder end side.
Leaking lrom the shaft upper endsection or pin engagement sec-tion of the pinion shaft.Replace the valve body unit.
Tighten the connector. It it's stillleaking, replace the line, cylinderor valve housing.
Leaking from cylinder line A or Bconnections (at tlare nut).
Leaking caused by a damagedcylinder line A or B.Replace cylinder line A or B.
Leaking from pump outlet hoseand return line joint fitting on thevalve body unit {at tlare nut}.
Tighten the connector. ll it's stillleaking, replace the line, joint fit-ting or valve housing,
17-10
www.emanualpro.com
Page 873 of 1395

Power Steering Pump
Reassembly
'1.Align the pin of the sub-valve with the oil passage
in pump housing, and push down the sub-valve.
Install the snsp ring properly.
OIL PASSAG€Align the pin of
the oil passage.
#q
;1..*
\SNAP RINGPUMP HOUSING
Install the new pump seal (with its grooved side fac-
ing in) into the pump housing by hand, then install
the pump seal spacer.
Position the pump drive shaft in the pump housing,
then drive it in using a 29 mm socket as shown,
BALL BEARfNG grlu,e un.t
/ /ffi\
1 / t\v4
t/ Y
# I F
PUMP SEALSPAC,ER
ry^
i- d
,O mm CIRCLIP
Hgo
/= PUMP DRIVE SHAFT
@.--#$i":*'
4,
PUMP HOUSING
Install the 40 mm circlip with its radiused side fac-
Ing out.
29 mm SOCKET
17 -2A
7.
5. Coat the pump cover seal with power steering fluid,
and install it into the groove in the pump cover.
OUTER SIDE PLATE
5 mrh ROLLER
lnstall the oute. side plate over the two rollers.
PUMP CAM RING
ROLLER SET HOLES
ROLLERS
Set the pump cam ring over the two rollers with the"' " mark on the cam ring upward.
ROLLER SET HOLES
PUMP COVER
www.emanualpro.com
Page 876 of 1395

Power Steering Gearbox
Removal
Note these items during removal:
. Using solvent and a brush, wash any oil and dirt off
the valve body unit its lines, and the end if the gear-
box. Blow dry with compressed air.
. Be sure to remove the steering wheel before discon-
necting the steering joint. Damage to the cable reel
can occur.
. With 4WD. tilt the engine with a jack to expand the
clearance between the transfer assembly and rear
beam when removing the steering gearbox from the
rear oeam.
Do not remove the steering gearbox by removing the
transfer assembly from the transmission.
1. Drain the power steering fluid as described on page'17-15.
Raise the vehicle, and suppon it on safety stands in
the proper locations (see section 1).
Remove the front wheels,
Remove the drive/s airbag assembly {see section 24).
Remove the steering wheel {see page 17-18).
Remove the steering joint bolts, then disconnect the
steering joint by moving the joint toward the column.
UPPER JOINT BOLT
LOWER JOINT BOLT
13.
7. Remove the cotter pin from the nut, and remove the
castle nut {'97 - 98 models) or hex nut ('99 - 00
models).
COTTER PINReplace.
Install the 10 mm hex nut on the ball joint. Be sure
that the 10 mm hex nut is flush with the ball joint
pin end, or the threaded section of the ball joint pin
might be damaged by the special tool. Refer to sec-
tion 18 for ball joint remover usage instruction, Be
careful not to damaging the ball joint boot.
Separate the tie-rod ball joint and knuckle using the
special tool.
Remove the right and left tie-rod ends, then extend
the rack all the way to the right.
Remove the TWC (see section 9).
Disconnect the shift linkage from the transmission
(M/T: see section 13, A/T: see section 14).
With 4WD. separate the propeller shaft and transfer
assembly (see section 161.
10.
11.
(cont'd)
17-31
www.emanualpro.com
Page 884 of 1395

28. Using a cutte. or an equivalent tool, cut and remove
the four seal rings from the sleeve. Be careful not to
damage the edges ot the sleeve grooves and outer
surface when removing the seal rings.
Using a cutter or an equivalent tool. cut the valve
seal ring and O-ring at the groove in the pinion
shaft. Remove the valve seal ring and O-ring. Be
careful not to damage the edges of the pinion shaft
groove and outer surface when removing the valve
seal rjng and O-ring.
29.
SLEEVE
Cufting slot position.
30. Remove the valve oil seal and backup ring ('97
model) or wave washer ('98 - 00 models) from the
pinion shaft.
Note these items during disassembly:
. Inspect the ball bearing by rotating the outer race
slowly. lf there is any excessive play, replace the
pinion shaft and sleeve as an assembly.
. The pinion shaft and sleeve are a precise fit; do
not intermix old and new Dinion shafts and
sreeves,
WAVE WASHERl'98 - 0O modelsl
PINION SHAFT
BACKUP RING{'97 modellVALVE OIL SEAL
31.Replace.Press the valve oil seal and roller bearing out of the
valve housing using a hydraulic press and special
tool shown below.
BALL BEARING
PILOT COLLAR
ROLLER SEARING
www.emanualpro.com
Page 885 of 1395

Power Steering Gearbox
Reassembly
Note these items during reassembly
. Clean the disassembled parts with a solvent, and dry them with compressed air. Do not dip the rubber parts in a sol-
vent.
. Always replace the O-rings and rubber seals with new ones before assembly.
. Apply the recommended power steering fluid to the parts indicated in the assembly procedures.
. Do not allow dust. dirt, or other toreign materials to enter the power steering system.
. Use the appropriate specialtools where necessary.
FLANGE BOLTS20 N.m (2.0 kgl.m, 14lbtftl
CYLINDER LINE AFLARE NUTS17 N.m 11.712 rbl.ftl
VALVE HOUSING
CYLINDER END SEALReplace.
VALVE OIL SEALBeplace.
ROLLER BEARING
CIRCLIPReplace.
BA.KUP RING
\/^"
WAVE WASHERBACKUP RINGReplace.97 model:HOUSING
VALVE SEAL RINGReplace.
O.RINGReplace.
32 mm SHIMS'97 mod6l only:
RACK GUIDE SCREW
O-RINGReplace.
@---r-ocxr'rur
'97 model:
'98 model:
'99 - 0O mod6ls:'9? model only:
CYLINDER END69 N.m (7.0 kgf.m, 51 lbf.ft)'98 - (x) models:
PISTON SEAL RINGReplace.
17-40
STEERING RACK
www.emanualpro.com
Page 886 of 1395

Valve Body Unh Roa$embly
1. Apply vinyl tape to the stepped portion of the pin-
ion shaft, and coat the surface of the vinyl tape with
the power steering fluid.
Vinyl tape(Stopp6d portion)
VALVE OIL SEALReplace.Make sure the spring isseated in the oil seal.
Serling
E
7.
PINION SHAFT
BACKUP RING137 modell
WAVE WASHER{'98 - 00 modelsl
Install the backup ring {'97 model) or wave washer
('98 - 00 models).
Coat the inside surface of the new valve oil seal
with power steering fluid.
Install the valve oil seal with its grooved side facing
opposite the bearing, then slide the valve oil seal
over the pinion shaft, being careful not to damage
the sealing lip.
Apply vinyl tape to the splines and stepped ponion
of the shaft, and coat the surface of the vinyl tape
with the power steering fluid.
Vinyl trp€
O.RINGReplace.Do not twist.R€place-Do not over-expand.
Fit the new O-ring in the groove of the pinion shaft.
Then slide the new valve seal ring over the shaft
and in the groove on the pinion shaft,
Remove the vinyl tape from the pinion shaft.
\/
PINION SHAFT
8.Apply power steering fluid to the surface of the
valve seal ring that was installed on the pinion
shaft.
Apply power steering fluid to the inside of the spe-
cial tool. Set the larger diameter end of the special
tool over the valve seal ring.
VALVE SEAL RINGSIZNG TOOL07NAG - SR309q'ot07NAG - SR3oltoA
Mak€ the valve seal ringfit snugly in the pinion
shatt using th6 other end{smaller diameter end) otthe special tool.
10.
11.
12.
Move the special tool up and down several times to
make the valve seal ring fit in the pinion shaft,
Remove the soecial tool.
Turn the special tool over, and set the smaller diam-
eter end of the specisl tool over the valve seal ring.
Move the special tool up and down several times to
make the valve seal ring fit snugly in the pinion
shaft.
(cont'd)
lrr.rj1
tffifrE-rr.]
r\-''] 7
Usg th6 larg€r diameterend of the specialtoollirst to maketh€ valve seal ringtit in the pinion
shaft.
17-41
www.emanualpro.com
Page 887 of 1395

Power Steering Gearbox
13.
Reassembly (cont'd)
Apply power steering fluid to the surface of the spe-
cial tool. Set the new seal rings over the special tool
from the smaller diameter end of the tool. and
expand the seal rings. Install two rings at a time
Jrom each end ofthe sleeve.
Note these items when installing the seal ring:
. Do not over-expand the seal ring. Install the resin
seal rings with care so as not to damage them.
After installation, be sure to contract the seal
rings using the specialtool {sizing tool).
. There are two types of sleeve seal rings: black
and brown. Do not mix the different types of
sleeve seal rings as they are not compatible.
Align the special tool with each groove in the sleeve,
and slide a sleeve seal ring into each groove. After
installation, compress the seal rings with your fin-
gers temporarily.
BALL JOINT BOOT CLIP GUIDE07974 - SA508q)
SLEEVE
Apply power steering fluid to the seal rings on the
sleeve, and to the ehtire inside surface of the special
tool.
14.
15.
SLEEVE SEAL RINGSIZING TOOL07974 - SA502O0 or07974 - SA5020A
16.Insert the sleeve into the special tool slowly.
Move the sleeve each direction several times to
make the seal rings snugly fit in the sleeve. Be sure
that the seal rings are not turned up,
't1.
18. Apply power steering fluid to the surface of the pin-
ion shaft. Assemble the sleeve over the Dinion shaft
by aligning the locating pin on the inside of the
sleeve with the cutout in the shaft. Then install the
new circlip securely in the pinion shaft groove.
Note these items during reassembly:
. Be caretul not to damage the valve seal ring
when inserting the sleeve.
. Install the circlip with its radiused side facing out.
Apply power steering fluid to the seal ring lip of the
valve oil seal. then install the seal in the valve hous-
ing using a hydraulic press and special tools. Install
the valve oil seal with its grooved side facing the tool.
19.
ATTACHMENT,32x35mm077i16 - (x)10100
VALVE OIL SEALReplace.Make sure thespring is in theoilseal.
CIRCLIP
www.emanualpro.com