Page 1596 of 1807

SR145-01
R06768
SST
R01151
Z06059
Vinyl Tape
- STEERINGPOWER STEERING VANE PUMP
SR-27
1911 Author: Date:
1997 SUPRA (RM502U)
DISASSEMBLY
NOTICE:
When using a vise, do not overtighten it.
1. 2JZ-GE:
REMOVE VANE PUMP PULLEY
Using SST to stop the pulley rotating, remove the pulley set nut.
SST 09960-10010 (09962-01000, 09963-01000)
2. MEASURE PS VANE PUMP ROTATING TORQUE
(a) Check that the pump rotates smoothly without abnormal
noise.
(b) Temporarily install the pulley set nut, and using a torque
wrench, check the pump rotating torque.
Rotating torque:
0.2 N´m (2.5 kgf´cm, 2.2 in.´lbf) or less
3. 2JZ-GE:
REMOVE OIL RESERVOIR
(a) Remove the 3 bolts.
(b) Remove the O-ring from the reservoir.
4. 2JZ-GTE:
REMOVE SUCTION PORT UNION
(a) Remove the bolt.
(b) Remove the O-ring from the union.
5. REMOVE PRESSURE PORT UNION, FLOW CONTROL
VALVE AND SPRING
Remove the O-ring from the union.
6. REMOVE REAR HOUSING
Remove the 2 bolts.
7. REMOVE CAM RING, VANE PUMP ROTOR AND 10
VANE PLATES
NOTICE:
Be careful not to drop the vane plates.
8. REMOVE 2 STRAIGHT PINS
9. REMOVE GASKET
10. REMOVE VANE PUMP SHAFT WITH BEARING
(a) Using snap ring pliers, remove the snap ring from the front
housing.
(b) Wind vinyl tape on the serrated part of the shaft.
(c) Using a press, press out the shaft with the bearing.
Page 1597 of 1807
Z06062
SR-28
- STEERINGPOWER STEERING VANE PUMP
1912 Author: Date:
1997 SUPRA (RM502U)
11. REMOVE SIDE PLATE AND WAVE WASHER
(a) Using a plastic hammer, tap the rear housing on the
shaded area untill the plate and washer come off.
(b) Remove the 2 O-rings from the rear housing.
Page 1598 of 1807
SR146-01
Z16583
Vane Pump Shaft
BushingFront Housing
Z06061
Thickness
Height
Length
R10282
Feeler
Gauge
- STEERINGPOWER STEERING VANE PUMP
SR-29
1913 Author: Date:
1997 SUPRA (RM502U)
INSPECTION
NOTICE:
When using a vise, do not overtighten it.
1. MEASURE OIL CLEARANCE BETWEEN VANE PUMP
SHAFT AND BUSHING
Using a micrometer and a caliper gauge, measure the oil clear-
ance.
Standard clearance:
0.03 - 0.05 mm (0.0012 - 0.0020 in.)
Maximum clearance:
0.07 mm (0.0028 in.)
If it is more than maximum, replace the front housing and vane
pump shaft.
2. INSPECT VANE PUMP ROTOR AND VANE PLATES
(a) Using a micrometer, measure the height, thickness and
length of the 10 vane plates.
Minimum height: 8.6 mm (0.339 in.)
Minimum thickness: 1.40 mm (0.0551 in.)
Mininum length: 14.99 mm (0.5902 in.)
(b) Using a feeler gauge, measure the clearance between
the rotor groove and plate.
Maximum clearance: 0.035 mm (0.0014 in.)
Page 1599 of 1807

R13897Inscribed Mark
R07603
R07591
Compressed Air
R07600
Inscribed
Mark
SR-30
- STEERINGPOWER STEERING VANE PUMP
1914 Author: Date:
1997 SUPRA (RM502U)
If it is more than the maximum, replace the plate and/or rotor
with one having the same mark stamped on the cam ring.
Inscribed mark:
1, 2, 3, 4 or None
HINT:
There are 5 vane plate lengths with the following rotor and cam
ring marks:
Rotor and cam
ring markVane plate part
numberVane plate length
mm (in.)
None44345-2601014.999-15.001
(0.59051-0.59059)
144345-2602014.997-14.999
(0.59043-0.59051)
244345-2603014.995-14.997
(0.59035-0.59043)
344345-2604014.993-14.995
(0.59027-0.59035)
444345-2605014.991-14.993
(0.59020-0.59027)
3. INSPECT FLOW CONTROL VALVE
(a) Coat the valve with power steering fluid and check that it
falls smoothly into the valve hole by its own weight.
(b) Check the valve for leakage.
Close one of the holes and apply 392 - 490 kPa (4 - 5 kgf/
cm
2, 57 - 71 psi) of compressed air into the opposite side,
and confirm that air does not come out from the end holes.
If necessary, replace the valve with one having the same letter
as inscribed on the front housing.
Inscribed mark:
A, B, C, D, E or F
Page 1600 of 1807

R08702
Calipers
Z08200
SST
Z06067
R13869
Press
Bearing
Removal Installation
- STEERINGPOWER STEERING VANE PUMP
SR-31
1915 Author: Date:
1997 SUPRA (RM502U)
4. INSPECT SPRING
Using calipers, measure the free length of the spring.
Minimum free length: 33mm (1.30 in.)
If it is not within the specification, replace the spring.
5. IF NECESSARY, REPLACE OIL SEAL
(a) Using SST, tap out the oil seal.
SST 09631-10030
NOTICE:
Be careful not to damage the bushing of the front housing.
(b) Coat a new oil seal lip with power steering fluid.
(c) Using a socket wrench (24 mm), press in the oil seal.
NOTICE:
Make sure to install the oil seal facing the correct direction.
6. IF NECESSARY, REPLACE BEARING
(a) Using a press, press out the bearing.
(b) Using a snap ring expander, remove the snap ring from
the vane pump shaft.
NOTICE:
Be careful not damage the vane pump shaft.
(c) Using a snap ring expander, install a new snap ring.
NOTICE:
Be careful not damage the vane pump shaft.
(d) Coat a new bearing with power steering fluid.
(e) Using a press, press in the bearing.
Page 1601 of 1807

SR147-01
Z06071
SST
Vinyl Tape
Z06072
Inscribed Mark
Z06073
Inscribed
Mark
R01149
Round End SR-32
- STEERINGPOWER STEERING VANE PUMP
1916 Author: Date:
1997 SUPRA (RM502U)
REASSEMBLY
NOTICE:
When using a vise, do not overtighten it.
1. COAT WITH POWER STEERING FLUID
(See page SR-23)
2. INSTALL VANE PUMP SHAFT WITH BEARING
(a) Wind vinyl tape on the serrated part of the shaft.
(b) Using SST, press in the shaft with the bearing to the front
housing.
SST 09608-04031
NOTICE:
Be careful not to damage the oil seal.
(c) Using snap ring pliers, install a new snap ring to the front
housing.
3. INSTALL STRAIGHT PINS
Using a plastic hammer, drive in 2 new straight pins to the front
housing.
4. INSTALL CAM RING
Align the holes of the ring and straight pins, and install the ring
with the inscribed mark facing outward.
5. INSTALL VANE PUMP ROTOR
Install the rotor with the inscribed mark facing outward.
6. INSTALL 10 VANE PLATES
Install the plate with the round end facing outward.
7. INSTALL GASKET
Install a new gasket to the front housing.
8. INSTALL SIDE PLATE
Align the holes of the plate and straight pins.
Page 1602 of 1807

R01174
R06769
SST
- STEERINGPOWER STEERING VANE PUMP
SR-33
1917 Author: Date:
1997 SUPRA (RM502U)
9. INSTALL WAVE WASHER
Install the washer so that its protrusions fit into the slots in the
side plate.
10. INSTALL REAR HOUSING
(a) Coat 2 new O-rings with power steering fluid and install
them to the housing.
(b) Torque the 2 bolts.
Torque: 17 N´m (170 kgf´cm, 12 ft´lbf)
11. INSTALL SPRING, FLOW CONTROL VALVE AND
PRESSURE PORT UNION
(a) Coat a new O-ring with power steering fluid and install it
to the union.
(b) Torque the union.
Torque: 83 N´m (850 kgf´cm, 61 ft´lbf)
12. 2JZ-GTE:
INSTALL SUCTION PORT UNION
(a) Coat a new O-ring with power steering fluid and install it
to the union.
(b) Torque the bolt.
Torque: 13 N´m (130 kgf´cm, 9 ft´lbf)
13. 2JZ-GE:
INSTALL OIL RESERVOIR
(a) Coat a new O-ring with power steering fluid and install it
to the reservoir.
(b) Torque the 3 bolts.
Torque:
Front side bolt: 13 N´m (130 kgf´cm, 9 ft´lbf)
Rear side bolts: 17 N´m (170 kgf´cm, 12 ft´lbf)
14. MEASURE PS VANE PUMP ROTATING TORQUE
(See page SR-27)
15. 2JZ-GE:
INSTALL VANE PUMP PULLEY
Using SST to stop the pulley rotating, torque the nut.
SST 09960-10010 (09962-01000, 09963-01000)
Torque: 43 N´m (440 kgf´cm, 32 ft´lbf)
Page 1603 of 1807

SR148-01
Z09176
Stopper
R07429
R06091
SR-34
- STEERINGPOWER STEERING VANE PUMP
1918 Author: Date:
1997 SUPRA (RM502U)
INSTALLATION
1. INSTALL PS VANE PUMP ASSEMBLY
Torque the 2 bolts.
Torque:
RH side bolt: 39 N´m (400 kgf´cm, 29 ft´lbf)
LH side bolt: 58 N´m (590 kgf´cm, 42 ft´lbf)
2. CONNECT PRESSURE FEED TUBE
Using a spanner (24 mm) to hold the pressure port union,
torque the union bolt with a new gasket.
HINT:
Make sure that the stopper of the tube is touching the PS vane
pump assembly as shown, before torquing the union bolt.
Torque: 49 N´m (500 kgf´cm, 36 ft´lbf)
3. 2JZ-GTE:
INSTALL VANE PUMP PULLEY
Using SST to stop the pulley rotating, torque the nut.
SST 09960-10010 (09962-01000, 09663-01000)
Torque: 43 N´m (440 kgf´cm, 32 ft´lbf)
4. 2JZ-GE:
CONNECT RETURN TUBE
5. 2JZ-GTE:
CONNECT OIL RESERVOIR TO PUMP HOSE
Connect the hose and install the clip.
6. INSTALL DRIVE BELT
Loosen the drive belt tension by turning the drive belt tensioner
clockwise, and install the drive belt.
7. 2JZ-GTE:
INSTALL AIR HOSE No.5
8. INSTALL BATTERY
(a) Install the battery carrier and battery.
(b) Install the battery cover.
(c) Install the battery clamp with bolt and nut.
(d) Connect the 2 terminals.
9. INSTALL ENGINE UNDER COVER
Install the 10 screws.
10. BLEED POWER STEERING SYSTEM
(See page SR-3)