Front Wheel Alignment: Adjustment

INSPECT TIRE (SEE INSPECTION )

MEASURE VEHICLE HEIGHT

Vehicle height:

VEHICLE HEIGHT SPECIFICATION

A - B mm (in.)	D - C mm (in.)
91 (3.58)	19 (0.75)

Measuring points:

Ground clearance of front wheel center
Ground clearance of lower suspension arm front bolt center
Ground clearance of axle beam set bolt center
Ground clearance of rear wheel center

NOTE: Before inspecting the wheel alignment, adjust the vehicle height to the specified value.

HINT:

Bounce the vehicle at the corners up and down to stabilize the suspension and inspect the vehicle height.

Fig 1: Identifying Vehicle Height Measuring Points

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

INSPECT TOE-IN
Toe-in:
TOE-IN SPECIFICATION

Toe-in (total) A + B: 0° +/- 11'(0° +/- 0.19°)
C - D: 0 +/- 2 mm (0 +/- 0.08 in.)

HINT:
- Measure "C - D" only when "A + B" can not be measured.
- If the toe-in is not within the specified value, adjust it at the rack ends.
  
  Fig 2: Identifying Toe-In
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
ADJUST TOE-IN
1. Measure the thread lengths of the right and left rack ends.
  Standard: Difference in thread length of 1.5 mm or less
2. Remove the rack boot set clips.
3. Loosen the tie rod end lock nuts.
4. Adjust the rack ends if the difference in thread length between the right and left rack ends is not within the specified range.
  1. Extend the shorter rack end if the measured toe-in deviates toward the outer-side.
  2. Shorten the longer rack end if the measured toe-in deviates toward the inner-side.
    
    Fig 3: Adjusting Toe-In
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
5. Turn the right and left rack ends by an equal amount to adjust toe-in.
  HINT:
  
  Try to adjust toe-in to the center of the specified range.
6. Make sure that the lengths of the right and left rack ends are the same.
  Standard: 0 +/- 1 mm
7. Torque the tie rod end lock nuts.
  Torque: 74 N.m (749 kgf.cm, 54 ft.lbf)
  
  NOTE: Temporarily tighten the lock nut while holding the hexagonal part of the steering rack end so that the lock nut and the steering rack end do not turn together. Hold the width across flat of the tie rod end and tighten the lock nut.
8. Place the boots on the seats and install the clips.
  HINT:
  
  Make sure that the boots are not twisted.
  
  Fig 4: Identifying Length Of Rack End
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

INSPECT WHEEL ANGLE

Turn the steering wheel fully and measure the turning angle.

Wheel turning angle:

WHEEL TURNING ANGLE SPECIFICATION

Inside wheel	Outside wheel: Reference
33°37' +/- 2° 33°62' +/- 2°	29°55' (29.92°)

If the right and left inside wheel angles differ from the specified value, check the right and left rack end lengths.

Fig 5: Identifying Wheel Turning Angle

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

INSPECT CAMBER, CASTER AND STEERING AXIS INCLINATION

Put the front wheel on the center of the alignment tester.
Remove the wheel cap.
Install the camber-caster-steering axis inclination gauge at the center of the axle hub or drive shaft.

Inspect the camber, caster and steering axis inclination.

Fig 6: Putting Front Wheel On Center Of Alignment Tester

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Camber, caster and steering axis inclination:

CAMBER, CASTER AND STEERING AXIS INCLINATION SPECIFICATION

Camber	Right-left error	-0 °39' +/- 45' (-0.65° +/- 0.75°)
		30' (0.5°) or less
Caster	Right-left error	1°47' +/- 45'(1.78° +/- 0.75°)
		30' (0.5°) or less
Steering axis inclination	Right-left error	10°13' +/- 45'(10.22° +/- 0.75°)
		30' (0.5°) or less

NOTE:

Inspect while the vehicle is empty (without the spare tire or tools on board).
The maximum tolerance of right and left difference for the camber and caster is 30' or less.

Remove the camber- caster- steering axis inclination gauge and attachment.
Install the wheel cap.
If the caster and steering axis inclination are not within the specified values, after the camber has been correctly adjusted, re-check the suspension parts for any damage and/or worn-out parts.

ADJUST CAMBER

NOTE: Inspect toe-in after the camber has been adjusted.

Remove the front wheel.
Remove the 2 nuts on the lower side of the shock absorber.
Clean the installation surface of the shock absorber and the steering knuckle.

Fig 7: Removing Nuts On Lower Side Of Shock Absorber
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Temporarily install the 2 nuts.
Fully push or pull the front axle hub in the direction of the required adjustment.
Tighten the 2 nuts.
Torque: 132 N.m (1,350 kgf.cm, 97 ft.lbf)

NOTE: Keep the bolts from rotating and torque the nuts.
Install the front wheel.
Torque: 103 N.m (1,050 kgf.cm, 76 ft.lbf)

Check the camber.

If the measured value is not within the specified range, calculate the required adjustment amount using the formula below.

(Camber adjustment amount) = Center of the specified range - Measured value

Check installed bolts combination. Select appropriate bolts from the table below to adjust the camber to within the specified range.

CAMBER ADJUSTING REFERENCE

Move the axle toward (+) in step e	Refer to Fig 9 (Move the axle toward positive side)
Move the axle toward (-) in step e	Refer to Fig 12 (Move the axle toward negative side)

Fig 8: Adjusting Camber

Table (1) (Move the axle toward positive side)

Fig 9: Move Axle Toward Positive Side Reference Table (1 Of 2)

Selected Bolt Combination

Fig 10: Selected Bolt Combination Reference Table (1 Of 2)

The body and suspension may be damaged if the camber is not correctly adjusted according to the above table.

NOTE: Replace the nut with a new one when replacing the bolt.

Repeat the steps mentioned above. At step (b), replace 1 or 2 selected bolts.
HINT:

Replace one bolt at a time when replacing 2 bolts.

Fig 11: Identifying Bolt Specification (1 Of 2)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Table (2) (Move the axle toward negative side)

Fig 12: Move Axle Toward Negative Side Reference Table (2 Of 2)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Selected Bolt Combination

Fig 13: Selected Bolt Combination Reference Table (2 Of 2)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

The body and suspension may be damaged if the camber is not correctly adjusted according to the above table.

NOTE: Replace the nut with a new one when replacing the bolt.
Repeat the steps mentioned above. At step (b), replace 1 or 2 selected bolts.
HINT:

Replace one bolt at a time when replacing 2 bolts.

Fig 14: Identifying Bolt Specification (2 Of 2)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002