Page 2937 of 3833
POWER STEERING OIL PUMP
PS-27
C
D
E
F
H
I
J
K
L
MA
B
PS
4. Align dowel pin A on flow control valve A with notch B in side
plate (front) as shown. Install side plate (front) to casing.
5. Install cartridge onto front side plate with smaller slit of cartridge
facing casing.
6. Connect pulley to casing.
CAUTION:
Be careful not to damage drive shaft seal when installing
pulley.
7. Connect rotor to pulley shaft with punch mark on rotor facing
casing.
SGIA0062E
SST497A
SST289A
Page 2938 of 3833

PS-28
POWER STEERING OIL PUMP
8. Connect vane to rotor with arc of vane in contact with cartridge.
9. Connect rotor snap ring to slit of pulley shaft, using a hammer
and a 10-mm socket.
CAUTION:
● Rotor snap ring is not reusable. Never reuse rotor snap
ring.
●Be careful not to damage rotor and pulley shaft.
●If rotor is damaged, power steering pump assembly must
be replaced.
10. Align dowel pin A on flow control valve A with notch B in side
plate (rear) as shown. Install side plate (rear) to cartridge.
11. Apply DEXRON
TM III or equivalent to body seal. Install it to cas-
ing.
CAUTION:
Body seal is not reusable. Never reuse body seal.
12. Apply DEXRON
TM III or equivalent to side plate inner and outer
seals. Install them to side plate (rear).
CAUTION:
Side plate inner and outer seals are not reusable. Never
reuse side plate inner and outer seals.
13. Fix power steering pump in a vise.
CAUTION:
When fixing pump in a vise, use aluminum plates to protect
steering pump mounting surface.
14. Attach rear body to casing and tighten four mounting bolts diag-
onally to specified torque.
15. Install rear bracket to rear body. Tighten mounting bolts to specified torque.
16. Connect front bracket to casing and tighten mounting bolts (3) to specified torque.
17. Connect inlet connector seal to inlet connector slit. Install inlet connector to casing with attaching bolts.
CAUTION:
Inlet connector seal is not reusable. Never reuse inlet connector seal.
SST843A
SGIA0063E
SGIA0064E
SGIA0065E
Page 2939 of 3833
POWER STEERING OIL PUMP
PS-29
C
D
E
F
H
I
J
K
L
MA
B
PS
Removal and Installation (YD22DDTi engine model)EGS000AI
1. Remove chain case cover.
2. Revolving crank pulley, set tool.
3. Fix tool with chain cover fixing bolts.
4. Using suitable tool, remove sprocket fixing nut and washer.
CAUTION:
Do not remove Tool while power steering oil pump is
removed.
5. Remove power steering pump fixing bolts, then remove it.
6. 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.
7. Bleed air after installation. Refer to PS-5, "
Bleeding Hydraulic
System"
SST884C
SST885C
SST886C
SST890C
Page 2940 of 3833
PS-30
POWER STEERING OIL PUMP
Disassembly and Assembly (YD22DDTi engine model)
EGS000AJ
INSPECTION BEFORE DISASSEMBLY
Disassemble power steering oil pump only when any of following
cases meets.
●If oil leak is found on oil pump.
●Oil pump pulley is deformed or damaged.
●Performance of oil pump is low.
1. Rear bracket 2. Rear body 3. Dowel pin
4. Side plate seal 5. Cam ring 6. Vane
7. Rotor 8. Side plate 9. O-ring (Outer)
10. O-ring (Inner) 11. Front body 12. Drive shaft rear oil sear
13. Drive shaft front oil seal 14. Drive shaft 15. Snap ring
16. O-ring 17. Outlet connector 18. Connector seal
19. Flow control valve 20. Flow control valve spring 21. Inlet connector
22. O-ring 23. Copper washer
SST882CA
SST883C
Page 2941 of 3833
POWER STEERING OIL PUMP
PS-31
C
D
E
F
H
I
J
K
L
MA
B
PS
DISASSEMBLY
CAUTION:
●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.
1. Remove rear bracket and rear body.
2. Remove side plate seal, cam ring, vane, rotor and side plate.
3. Remove out connector and then remove connector seal, flow
control valve and flow control valve spring.
CAUTION:
●Be careful not to drop the flow control valve.
●Do not disassemble the flow control valve.
4. Remove oil seal
5. Remove snap ring, then draw drive shaft.
CAUTION:
Be careful not to drop drive shaft.
6. Remove inlet connector.
SST887C
SST036A
SST888C
SST889C
Page 2942 of 3833
PS-32
POWER STEERING OIL PUMP
INSPECTION AFTER DISASSEMBLY
●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.
ASSEMBLY
1. Assemble 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 DEXRONTM III or equivalent when
assembling.
2. Pay attention to the direction of rotor.
3. When assembling vanes to rotor, rounded surfaces of vanes
must face cam ring side.
SST036A
SST289A
SST843A
Page 2943 of 3833
POWER STEERING OIL PUMP
PS-33
C
D
E
F
H
I
J
K
L
MA
B
PS
4. 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
1 is less than D2
SST472C
Page 2944 of 3833
PS-34
HYDRAULIC LINE
HYDRAULIC LINE
PFP:49721
Removal and InstallationEGS0004O
1. QR20DE AND QR25DE ENGINE MODELS
SGIA0017E