Page 1593 of 1807
Z18269
2JZ-GTE:
Battery Clamp
Battery Cover
Terminal
Terminal
Battery Pressure Feed Tube
GasketUnion Bolt Drive Belt
Battery Carrier Air Hose No.5
Oil Reservoir to
Pump Hose
PS Vane Pump Assembly
Vane Pump Pulley
Engine Under Cover
x10
Non-reusable part SR-24
- STEERINGPOWER STEERING VANE PUMP
1908 Author: Date:
1997 SUPRA (RM502U)
Page 1594 of 1807
Z19281
2JZ-GE and 2JZ-GTE:
Reservoir Cap2JZ-GE:
Oil Reservoir
2JZ-GTE:
Suction Port Union
O-Ring
Flow Control Valve
Pressure Port
Union Front Housing
Vane Pump Shaft
2JZ-GE:
Vane Pump Pulley O-Ring
Bearing Oil Seal Gasket
Spring
O-Ring
Snap Ring
Snap Ring
O-Ring
Straight Pin
Rear Housing Wave Washer
Side Plate
Cam Ring
Vane Plate Vane Pump Rotorx10
Straight Pin
Non-reusable part
: Power steering fluid
- STEERINGPOWER STEERING VANE PUMP
SR-25
1909 Author: Date:
1997 SUPRA (RM502U)
Page 1595 of 1807

SR144-01
R06091
R07429
R07432
SR-26
- STEERINGPOWER STEERING VANE PUMP
1910 Author: Date:
1997 SUPRA (RM502U)
REMOVAL
1. REMOVE ENGINE UNDER COVER
Remove the 10 screws.
2. REMOVE BATTERY
(a) Disconnect the 2 terminals.
(b) Remove the bolt, nut and battery clamp.
(c) Remove the battery cover.
(d) Remove the battery and battery carrier.
3. 2JZ-GTE:
REMOVE AIR HOSE No.5
4. REMOVE DRIVE BELT
Loosen the drive belt tension by turning the drive belt tensioner
clockwise, and remove the drive belt.
5. 2JZ-GTE:
DISCONNECT OIL RESERVOIR TO PUMP HOSE
Remove the clip and disconnect the hose.
NOTICE:
Take care not to spill fluid on the A/C compressor rotor.
6. 2JZ-GE:
DISCONNECT RETURN TUBE
NOTICE:
Take care not to spill fluid on the A/C compressor rotor.
7. 2JZ-GTE:
REMOVE VANE PUMP PULLEY
Using SST to stop the pulley rotating, remove the nut.
SST 09960-10010 (09962-01000, 09963-01000)
8. REMOVE PRESSURE FEED TUBE
Using a spanner (24 mm) to hold the pressure port union, re-
move the union bolt and gasket.
9. REMOVE PS VANE PUMP ASSEMBLY
Remove the 2 pump assembly set bolts.
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.