Chapter 10 Suspension and steering systems
10-19
gearhousing onpowersteering-equippedmodels before fhe housing can
beremoved. Thesteeringsystemshouldbe filledandpowersteeringsys-
terns should be bled after the gear is reinstalled (see Section 22).
1 Raise the front of the vehicle and place it securely on jackstands.
Apply the parking brake.
2 Place an alignment mark on the steering shaft flexible coupling and
the gear housing worm shaft to assure correct reassembly, then remove
the couplihg pinch bolt.
3 Disconnect the power steering line connections from the steering
gear. Plug the lines so the fluid will not drain.
4 Disconnectthe Pitman arm and the left tie-rod from the relay rod (see
Section 18).
5 Remove the bolts securing the gear housing to the chassis and lower
the gear from the vehicle.
6 Installation is the reverse of the removal procedur6. Be sure to tighten
all nuts and bolts to the torques listed in this Chapter’s Specifications.
20 Steering freeplay -adjustment
Refer to illustration 20.6 .
1 Raisethevehiclewith ajacksothatthefrontwheelsareoff theground
and place the vehicle securely on jackstands.
2 Point the wheels straight ahead.
3 Using a wrench, loosen the locknut on the steering gear.
4 Turn the adjusting screw clockwise to decrease wheel freeplay and
counterclockwise to increase it.
Note: Turn the a&Ming screw in small
increments, checking the steering wheel freeplay between them.
5 Turn the steering wheel halfway around in both directions, checking
that the freeplay is correct and that the steering is smooth.
6 Hold the adjusting screw so that it will not turn and tighten the locknut
(see illustration).
’ 7 Remove the jackstands and lower the vehicle.
20.6 Loosen the locknut with a wrench and use a screwdriver to
turn the adjusting screw-when tightening the locknut, be sure to
hold the screw to keep it from turning
22 Power steering system - bleeding
21 Power steering pump - removal and installation
Warning: Wheneveranyofthesuspensionorsteeringfastenersareloos-
enedorremoved, they must be inspectedand, if necessary, replaced with
newonesofthesameparinumberoroforiginalequipmentqualityandde-
sign. Torque specifications must be follow&d for proper reassembly and
component retention.
Note: lfyoofind thatthesteeringpumpisdefective, itisnotrecommended
that
you overhaul
it Because of the special tools needed to do Nle job, it is
best to let your dealer service department overhaul it for you (or replace it
with a factory rebuilt unit). However, you can remove it yourself using the
procedure which follows.
1 Checkthefluid in the reservoirandaddfluidof thetipecifiedtypeif it is
low.
2 Jack up the front of the vehicle and place it securely on jackstands.
3 With the engine off, turn the steering wheel fully in both directions two
or three times.
4 Recheck the fluid in the reservoir and add more fluid if necessary.
5 Starttheengineandturnthesteeringwheelfullyinbothdirectionstwo
or three times. The engine should be running at 1000 rpm or less.
6 Remove the jackstands and lower the vehicle completely.
7 With the engine running at 1000 rpm or less, turn the steering wheel
fully in both directions two or three times.
8 Return the steering wheel to the center position.
9 Check that the fluid is not foamy or cloudy.
10 Measure the fluid level with the engine running.
11 Turn off the engine and again measure the fluid level. It should rise no
more than 0.20 in (5 mm) when the engine is turned off.
12 If a problem is encountered, repeat Steps 7 thrdugh 11.
13 If the problem persists, remove the pump (seesection 22), and have
it repaired by a dealer service department.
23 Front end alignment - general information
Refer to illustration 23.1
Removal
1 Position a container to catch the pump fluid. Disconnect the hoses
from the pump body. As each is disconnected, cap or tape over the hose
opening and then secure the end in a raised position to prevent leakage
and contamination. Cover or plug the pump openings to so dirt won’t enter
the unit.
2 Loosen the pump belt adjustment until the drivebelt can be removid
from the pump pulley (see Chapter 1, if necessary).
3 Remove the pump mounting bolts and lift the pump out of the engine
compartment.
A front end alignment refers to the adjustments made to the front
wheels so they are in proper angular relationship to the suspension and
the ground. Front wheels that are out of proper alignment not only affect
steering control, but also increase tire wear. The front end adjustments
normally required are camber, caster and toe-in
(see illustration).
Getting the proper front wheel alignment is a very exacting process,
one in which complicated and expensive machines are necessary to per-
form the job properly. Because of this, you should have a technician with
the proper equipment perform these tasks. We will, however, use this
space to give you a basic idea of what is involved with front end alignment
so you can better understand the process and deal intelligently with the
shop that does the work.
Installation
Toe-in is the turning in of the frontwheels. The purpose of atoe specifi-
4 Installation is the reverse of the removal procedure. When installing cation is to ensure parallel rolling of the front wheels. In a vehicle with zero
the pressure line, make sure there is sufficient clearance between the line
toe-in, thedistance betweenthefrontedgesofthewheelswill bethesame
and the exhaust manifold.
as the distance between the rear edges of the wheels. The actual amount
5 To adjustthe drivebelt tension, see Chapter 1. of toe-in is normally only a fraction of an inch. Toe-in adjustment is con-
6 Fill the power steering fluid reservoir with the specified fluid and bleed
trolled tiy the tie-rod end position on the inner tie-rod. Incorrect toe-in will
the power steering system (see Section 22). cause
the tires
to wear improperly by making them scrub against fhe
road
7 Check for fluid leaks. surface.
To Next Page
Loading...
