03-01-09
Suspension — Steering, Wheels And Tires — General Service
03-01-09
the reading exceeds specifications
(Part 3-13), replace the upper ball
joint.
LOWER BALL JOINT
INSPECTION
Ford,
Mercury, Meteor,
Thunderbird, Lincoln Continental
and Continental Mark III
1.
Raise the vehicle and place
jacks under the lower arms as shown
in Fig. 12. This will unload the lower
ball joints.
2.
Adjust the wheel bearings as des-
cribed in Part 3-12.
3.
Attach a dial indicator to the
lower arm and position the indicator
so that the plunger rests against the
inner side of the wheel rim adjacent to
the lower ball joint.
4.
Grasp the tire at the top and
bottom and slowly move the tire in
and out (Fig. 19). Note the reading
(radial play) on the dial indicator. If
the reading exceeds specifications
(Part 3-13), replace the lower ball
joint.
Cougar, Fairlane, Falcon,
Montego, Mustang
1.
Raise the vehicle on a frame
contact hoist or by floor jacks placed
beneath the underbody until the wheel
falls to the full down position.
2.
Ask an assistant to grasp the
lower edge of the tire and move the
wheel in and out.
3.
As the wheel is being moved in
and out, observe the lower end of the
spindle and the lower arm.
4.
Any movement between the
lower end of the spindle and the lower
arm indicates ball joint wear and loss
of preload. If any such movement is
observed, replace the lower arm.
During the foregoing check, the
upper ball joint will be unloaded and
may move. Disregard all such move-
ment of the upper ball joint. Also, do
not mistake loose wheel bearings for a
worn ball joint.
POWER STEERING GEAR
CLEANING
Disassembly and assembly of the
steering gear and. the sub-assemblies
must be made on a clean workbench.
As in repairing any hydraulically op-
erated unit, cleanliness is of utmost
importance. The bench, tools, and
parts must be kept clean at all times.
Thoroughly clean the exterior of the
unit with a suitable solvent and, when
necessary drain as much of the hy-
draulic fluid as possible. Handle all
parts very carefully to avoid nicks,
burrs,
scratches and dirt, which could
make the parts unfit for use.
Do not clean, wash or soak seals in
cleaning solvent.
INSPECTION
1.
Check the sector shaft contact
surface in the cover for wear. If worn,
replace the cover.
2.
Inspect the input shaft bearing
for cracked races and the balls for
looseness, wear, pitting, end play or
other damage. Check the fit of the
bearing on the input shaft. Replace
the bearing, if required.
3.
Inspect the valve housing for
wear, scoring or burrs.
4.
Inspect the tube seats in the
pressure and return ports in the valve
body for nicks, etc. If necessary, re-
move and replace.
5.
Check the sector shaft contact
surface in the housing for wear. If
worn, replace the bushing or the hous-
ing.
6. Check all fluid passages for ob-
struction or leakage.
7.
Inspect the steering gear housing
for cracks, stripped threads, and mat-
ing surfaces for burrs. Inspect the pis-
ton bore of the housing for scoring or
wear. If necessary, replace the hous-
ing.
8. Check the input shaft bearing
after installation to be sure that it ro-
tates freely.
9. If the valve spool is not free in
the valve housing, check for burrs at
the outward edges of the working
lands in the housing and remove with
a hard stone. Check the valve spool
for burrs and if burrs are found, stone
the valve in a radial direction only.
Check for freedom of the valve again.
10.
Check the piston rack teeth and
sector shaft teeth for nicks and burrs.
FLUSHING THE POWER
STEERING SYSTEM—ALL EXCEPT
LINCOLN CONTINENTAL AND
CONTINENTAL MARK III
Should it be necessary to replace an
inoperative power steering pump, the
need for flushing the steering system
is required when installing the new
pump.
1.
Remove the power steering pump
and remove the pulley as outlined in
Part 3-10.
2.
Install the pulley on a new
pump. Install the pump and connect
only the pressure hose to the pump
(Part 3-10).
3.
Place the fluid return line in a
suitable container and plug the reser-
voir return pipe.
4.
Fill the reservoir with lubricant
(C1AZ-19582-A).
5.
Disconnect the coil wire to pre-
vent the engine from starting and raise
the front wheels off the ground.
6. While approximately two quarts
of steering gear fluid are being poured
into the reservoir, turn the engine over
using the ignition key, at the same
time cycle the steering wheel from
stop to stop.
7.
As soon as all of the lubricant
has been poured in, turn off the igni-
tion key, and attach the coil wire.
8. Remove the plug from the reser-
voir return pipe, and attach the return
hose to the reservoir.
9. Check the reservoir fluid level; if
low, add fluid to the proper level. Do
not overfill.
10.
Lower the vehicle.
11.
Start the engine and cycle the
steering from stop to stop to expel
any trapped air from the system.
POWER STEERING PUMP—ALL
EXCEPT LINCOLN
CONTINENTAL AND
CONTINENTAL MARK III
CLEANING
Wash all parts (except seals) in a
Naptha or Chlorinated-type solvent
and dry with compressed air.
Punch or Rod
RELIEF VALVE PLUNGER
G1607-A
FIG.
20—Cleaning Pump Relief Valveprocarmanuals.com
