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3-26
GROUP 3-SUSPENSION, STEERING, WHEELS AND TIRES
(050)
FIG.
28-Adiusting
Centering Spool
G1207-A
17. To adjust the centering spool,
connect a 0-2000 psi pressure gauge
between the car pump pressure line
and the inlet port (upper hole) in
the gear (Fig. 27).
18. Connect the return hose to the
outlet port (lower hole) in the gear.
19. Make certain that the gauge
hand valve is in the fully open posi-
tion.
20.
Fill the power steering pump
reservoir to the correct level with
the specified fluid.
21. Start the engine and cycle the
steering gear from stop-to-stop until
the fluid reaches normal operating
temperature. Recheck the reservoir
and add fluid as necessary.
SOL T (7)
I ---
~-
0
\
COVER SEAL
1
RETAINER RING
FIG.
29-Power Steering Pump
22. Using an inch-pound torque
wrench with a %-inch socket at the
input shaft, rotate the gear to the
left stop, adding sufficient torque to
the torque wrench to simultaneously
obtain 300 psi on the pressure gauge,
and the required torque on the
torque wrench gauge.
Repeat this process again in the
opposite direction.
The torque required to obtain a
gauge reading of 300 psi in both
directions should not differ more
than 3 inch-pounds.
23. If the torque wrench reading
is more than 3 inch-pounds between
the right and left turns, loosen the
valve spool adjuster lock nut and
rotate the adjuster in the direction
of the low reading (Fig. 28) . Only a
slight movement of the adjuster is
required to move the valve spool.
Tighten the adjuster lock nut before
each reading is made.
24. Install the steering gear in the
car.
25. Recheck the torque in both
directions as in step No. 22. If the
readings are within 3 inch-pounds
of each other, install the adjuster
cap. Disconnect the test gauge.
POWER STEERING PUMP
DISASSEMBLY
A clean working area should be
used when overhauling the power
steering pump. Foreign matter picked
up on working parts may cause dam-
age or failure of the unit. Clean con-
tainers should be used for parts.
1. Drain the fluid from the pump.
Remove the pump cover to housing
cap screws (Fig. 29) . Place the
pump on the bench, cover side down.
Lift the housing from the cover.
2. Remove the large and the small
0-rings from the pump cover. Re-
move the 0-ring from the pressure
plate hub.
3. Remove the pressure plate to
cover screws, and remove the plate.
Lift the cam ring off the dowel pins.
4. Remove the rollers. Lift the
rotor off the shaft, and remove the
drive key from the shaft. Remove the
dowel pins from the cover.
5. Remove the rotor shaft from
the cover. Do not remove the snap
ring from the shaft unless it, or
the shaft, is damaged.
6. Pry the rotor shaft seals out of
the cover and the housing.
7. Do not disturb the control
valve unless diagnosis indicated a
control valve problem or foreign
matter in the valve. To remove the
valve, drive the roll pin out of the
housing.
Remove
the plug
and
0-ring,
control
valve,
and
the
spring. If the plug or valve is stuck,
tap the end of the housing on a piece
SCREW
(2}
61201-A
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Troubleshooting
