suspension FORD FIESTA 2007 Owner's Manual

204-00-1 4 Suspension System - General Information 204-00-1 4
DIAGNOSIS AND TESTING
TEST CONDITIONS DETAILSIRESU LTSIACTIONS
Component Tests
Raise and support the vehicle. REFER to: (1 00-02 Ball Joint Inspection
Jacking and Lifting)
1. Firmly grasp the outer end of the suspension
Jacking (Description and Operation), lower arm and
try to move it up and down,
Lifting (Description and Operation). watching and feeling for
any movement. Free
-
movement will usually be accompanied by an !
audible "click". There should be no free
movement.
(,';
B10: CARRY OUT A ROAD TEST
2006.0 Fiesta 1212006 Gl49885en
Disassemble the strut and spring and assembly
and inspect the individual components.
REFER to: Front Strut and Spring Assembly
(204-01 Front Suspension, Disassembly and
Assembly).
Inspect the shock absorber top mount for wear
or damage.
Carry out the Strut or Shock Absorber Testing
component test in this procedure.
Are any of the strut and spring assemblies or
shock absorber components damaged?
-+ Yes
INSTALL new components as necessary.
REFER to:
Front Strut and Spring Assembly (204-01 Front
Suspension, Disassembly and Assembly),
Rear Shock Absorber (204-02 Rear Suspension, Removal and Installation),
Spring (204-02 Rear Suspension, Removal and Installation).
-, No
REINSTALL the strut and spring assemblies
or shock absorbers. GO to
B10.
Carry out a road test.
REFER to:
RoadlRoller Testing (1 00-00 General
Information, Description and Operation).
Is the concern still evident?
-+ Yes
REFER to: Noise, Vibration and Harshness
(NVH) (1 00-04 Noise, Vibration and Harsh-
ness, Diagnosis and Testing).
-+ No
Vehicle condition corrected.
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204-00-1 5 Suspension System - General Information 204-00-1 5 1
DIAGNOSIS AND TESTING
2. If there is any free movement install a new lower 4. Compress and pull the piston rod in the vertical
arm. position. Feel if the resistance force at the point
REFER to: Lower Arm (204-01 Front
Suspension, Removal and Installation).
3. If a new lower arm is installed it will be
necessary to check and adjust the front wheel
alignment.
REFER to: Specifications (204-00 Suspension
System
- General Information, Specifications). of direction change-over
is perceptible without
a lag. If a lag is perceptible it is an indication of
damper valve damage and new struts or shock
absorbers must be installed. REFER to:
Front Strut and Spring Assembly (204-01 Front
Suspension, Disassembly and Assembly),
Front Strut and Spring Assembly (204-01 Front
Suspension, Removal and Installation),
Rear Shock Absorber (204-02 Rear Suspension,
Removal and Installation).
Strut or Shock Absorber Inspection
N0TE:lnspect the struts or shock absorber for
signs of oil
weepage or leaks. Make sure that the
oil is not from another source.
Weepage:
deposits a thin film of oil on the strut and spring
assembly or shock absorber.
is normally noticed due to a collection of dust
on the strut and spring assembly or shock
absorber.
occurs during the normal running-in period of
4800
- 8050 km. After this period no new signs
of oil should be visible.
does not require new struts or shock absorbers
to be installed.
Leakage:
covers the entire strut and spring assembly or
shock absorber with oil.
will drip oil onto the surrounding suspension
components.
requires new struts or shock absorbers to be
installed.
Strut or Shock Absorber Testing
N0TE:Struts or shock absorbers must be tested
in the vertical position.
I. Remove both strut and spring assemblies or
shock absorbers. The piston rods should extend.
Disassemble the strut and spring assemblies.
REFER to: Front Strut and Spring Assembly
(204-01 Front Suspension, Disassembly
and Assembly).
2. Compress the piston rods. Both piston rods
should offer the same resistance when
compressing.
3. Compress and release the piston rods. The
piston rods should extent equally.
2006.0 Fiesta 1212006 Gl49885en
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204-00-1 6 Suspension System - General Information 204-00-1 6
GENERAL PROCEDURES
Wheel Bearing Inspection
Special Tool(s)
General Equipment
I Dial indicator gauge I
bearing assembly. There should be no end (
play. If end play exists, install new wheel
bearings.
Check
1. N0TE:Do not to confuse lower arm ball joint
looseness with bearing looseness.
Raise and support the front of the vehicle. 6.
Install the front brake caliper anchor plate.
For additional information, refer to: (I 00-02)
For additional information, refer to: Brake
Jacking (Description and Operation),
Lifting (Description and Operation).
2. Check for loose front wheel bearings by
rocking the wheels at the top and bottom.
3. Spin the wheel quickly by hand and make
sure the wheel turns smoothly without noise
from the wheel bearings.
4. Remove the front brake caliper anchor plate.
For additional information, refer to: Brake
Caliper Anchor Plate (206-03, Removal and
Installation).
5. Position a suitable Dial indicator gauge
fixture or equivalent, against the wheel hub,
then push and pull the wheel hub. Measure
the end play of the wheel hub and front wheel Caliper
Anchor Plate (206-03, Removal and
Installation).
2006.0 Fiesta 1212006 ~25341 en
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204-00-1 7 Suspension System - General Information 204-00-1 7
GENERAL PROCEDURES
Front Toe Adjustment(l4 11 7 0)
I
N0TE:Make sure that the vehicle is standing on a 4. Rotate the tie-rods an equal amount in either
level surface. a clockwise or a counterclockwise direction
1. Centralize the steering and lock it in position. to
adjust the toe setting.
For additional information, refer to:
Specifications
(204-00, Specifications).
2. Loosen the tie-rod end locknuts.
3. Remove the steering gear boot outer clamps.
5. Tighten the tie-rod end locknuts.
For additional information, refer to: Tie Rod
End (21
1-03 Steering Linkage, Removal and
Installation).
6. Install the steering gear boot outer clamps.
2006.0 Fiesta 1212006 GI 7387en
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204-01 -1 Front Suspension 204-01 -1
SECTION 204-01 Front Suspension
VEHICLE APPLICATION:2006.0 Fiesta
CONTENTS
SPECIFICATIONS
Specifications.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
.DESCRIPTION AND OPERATION
Front Suspension ........................................................................\
........................................
DIAGNOSIS AND TESTING
Front Suspension ........................................................................\
........................................
PAGE
REMOVAL AND INSTALLATION
Front Stabilizer Bar Bushing ...... .... . . . . . . .. . . .. . . .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (14 754 0)
204-01 -6
Lower Arm ........................................................................\
.............................. (14 706 0) 204-0 1 -7
Front Stabilizer Bar ........................................................................\
................. (14 752 0) 204-0 1 -9
Wheel Knuckle.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (1 4 343 0)
204-01 -1 3
i Front Strut and Spring Assembly ................................................................... (14 781 0) 204-01-19
Front Wheel Bearing ........................................................................\
........... (14 411 0) 204-01 -21
DISASSEMBLY AND ASSEMBLY
Front Strut and Spring Assembly ............................................................... (14 783 4)
204-01 -23
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204-01 -2 Front Suspension 204-01 -2
SPECIFICATIONS
I Top mount retaining nuts I 25 I 18 I - I
Torque Specifications
I Thrust bearing retaining nut I 48 I 35 I - I
Stabilizer bar connecting link to strut and spring
retaining nut Ib-in
I Wheel
knuckle to suspension strut pinch bolt I 85 I 63 I - I
Ib-ft Item Nm
Brake caliper anchor plate retaining bolts
Lower arm ball joint to wheel knuckle retaining nut
I Steering gear retaining bolts I 48 I 35 I - I
Tie-rod end retaining nut
Stabilizer bar clamp retaining bolts
Stabilizer bar to connecting link retaining nut
Fb.wer arm front retaining bolt I
70
48
I Lower arm rear clamp retaining bolts I 55 I 41 I - I
48
55
55
I Crossmember front retaining bolts I 70 I 52 I - I
52
35
I Crossmember rear retaining bolts 1 Iq5 1 85 I - I
-
-
35
41
41
I Crossmember inner and outer retaining bolts 1 175 1 129 1 - I
-
-
-
I Wheel hub retaining nut 1290 1214 1 - I
I Engine support insulator center bolt I 48 I 35 I - I
2006.0 Fiesta 1212006 GI 52539en
Wheel speed sensor retaining nut
a) Refer to the procedure in this section.
9 - 80
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204-01 -3 Front Suspension 204-01 -3
DESCRIPTION AND OPERATION
Front Suspension
Overview
N0TE:During installation of the front wheel bearing
it is important to adhere to the specified installation
position, as the anti-lock brake system
( ABS )
sensor ring is located in the wheel bearing. A
coloured rubber ring is provided to indicate the
correct installation position. If the wheel bearing
were to be installed incorrectly then this would
cause failure of the ABS
.
A newly developed Mc-Pherson front suspension
with L-shaped lower arms is used. These lower
suspension arms are linked via large rubber
mountings to a reinforced and extremely rigid front
axle crossmember.
The ball head between the lower suspension arm
and the suspension strut is secured with three
rivets. Toe-in is adjusted via adjustable track rods.
The lower suspension arms can only be replaced as a complete unit.
2006.0 Fiesta IZIZOO~ GI 67080en
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204101 -4 Front Suspension 204-01 -4
DESCRIPTION
AND OPERATION
Item Description
The rear rubber mountings for the lower
suspension arms are enclosed in aluminium
brackets. This provides more vibration damping
than previously. Both the front and rear brackets
are arranged horizontally.
1
The suspension strut turret support bearings have
two separate routes for independently deflecting
the spring and shock absorber forces into the body.
This reduces the level of noise transmitted from
the road surface. Rear rubber
mounting
The correct installation position must be observed
when installing the suspension strut turret support
bearings. This is indicated by an arrow on the
suspension strut turret support bearing. The shock
absorbers are gas shock absorbers.
The spring travel has been increased by
6 mm,
and the track has been increased by
48 mm to
1477 mm.
2006.0 Fiesta 1212006 GI 67080en
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204-01 -5 Front Suspension 204-01 -5
DIAGNOSIS AND TESTING
Front Suspension
! REFER to Section 204-00 [Suspension System -
General Information].
2006.0 Fiesta 1212006 GI 7395en
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204-01 -6 Front Suspension 204-01 -6
REMOVAL AND INSTALLATION
Front Stabilizer Bar Bushing(l4 754 0)
Removal 2. Install the stabilizer bar.
1. Remove the stabilizer bar.
For additional information, refer to Stabilizer
Bar in this section.
2. Remove the stabilizer bar bushings on both
sides. For
additional information, refer to Stabilizer
Bar in this section.
Installation
1. CAUTIONS:
ADO not lubricate the stabilizer bar
bushings.
AThe stabilizer bar bushings must be
positioned with the slot facing forwards of
the stabilizer bar.
AThe stabilizer bar bushings must be
positioned as shown.
N0TE:The location of the stabilizer bar bushings
should be measured from the center mark on the
stabilizer bar.
Install the stabilizer bar bushings.
2006.0 Fiesta 1212006 G89069en
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