Front Wheel Alignment: Adjustment

INSPECT TIRE (See WHEEL AND TIRE SYSTEM )

MEASURE VEHICLE HEIGHT

Vehicle height:

1ZZ-FE:

VEHICLE HEIGHT - 1ZZ-FE SPECIFICATIONS

	USA, Canada	Mexico
Front (A - B)	87 mm (3.43 in.)	72 mm (2.84 in.)
Rear (D-C)	43 mm (1.69 in.)	29 mm (1.14 in.)

2ZZ-GE:

VEHICLE HEIGHT - 2ZZ-FE SPECIFICATION

Front (A - B)	97 mm (3.81 in.)
Rear (D-C)	57 mm (2.24 in.)

Measuring points:

A: Ground clearance of front wheel center

B: Ground clearance of lower suspension arm front bolt center

C: Ground clearance of rear wheel center

D: Ground clearance of axle beam set bolt 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: Measuring Vehicle Height

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

INSPECT TOE-IN
Toe-in:

Fig 2: Toe-In Specified Value Table
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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 3: Inspecting 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.
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.
  
  Fig 4: Identifying Tie Rod End Lock Nuts
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
8. Place the boots on the seats and install the clips.
HINT:

Make sure that the boots are not twisted.

INSPECT WHEEL ANGLE

Turn the steering wheel fully and measure the turning angle.

Wheel turning angle:

1ZZ-FE:

WHEEL ANGLE - 1ZZ-FE SPECIFICATION

	USA, Canada	Mexico
Inside wheel	37°06' +/- 2°	37°16' +/- 2°
Inside wheel	(37.10° +/- 2°)	(37.27° +/- 2°)
Outside wheel: Reference	31° 49' (31.82°)	32° 08' (32.13°)

Fig 5: Inspecting Wheel Angle

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

2ZZ-GE:

WHEEL ANGLE - 2ZZ-FE SPECIFICATION

Inside wheel	37°00' +/- 2° (37.00° +/- 2°)
Outside wheel: Reference	31°38' (31.63°)

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

INSPECT CAMBER, CASTER AND STEERING AXIS INCLINATION
1. Put the front wheel on the center of the alignment tester.
2. Remove the center ornament.
3. Install the camber-caster-steering axis inclination gauge at the center of the axle hub or drive shaft.
4. Inspect the camber, caster and steering axis inclination.
  Camber, caster and steering axis inclination:
  
  Fig 6: Putting Front Wheel On Center Of Alignment Tester
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  1ZZ-FE:
  
  Fig 7: Camber, Caster And Steering Axis (1ZZ-FE) Table
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  2ZZ-GE:
  
  Fig 8: Camber, Caster And Steering Axis (2ZZ-FE) Table
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  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 45' or less.
5. Remove the camber-caster-steering axis inclination gauge and attachment.
6. Install the center ornament.
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 damaged and/or worn out parts.

ADJUST CAMBER

NOTE: After the camber has been adjusted, inspect the toe-in.

Remove the front wheel.
Remove the 2 nuts on the lower side of the shock absorber assy front LH.
NOTE: When removing the nut, stop the bolt from rotating and loosen the nut.
Clean the installation surfaces of the shock absorber assy front LH and the steering knuckle.
Temporarily install the 2 nuts.

Fig 9: Removing Nuts On Lower Side Of Shock Absorber Assembly Front LH
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fully push or pull the front axle hub in the direction of the required adjustment.
Tighten the nuts.
Torque: 153 N.m (1,560 kgf.cm, 113 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.

Fig 10: Pulling Front Axle Hub In Direction Of Required Adjustment

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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.

APPROPRIATE BOLTS SPECIFICATION

Move the axle toward (+) in step (e)	Refer to Fig 11 under "Chart 1"
Move the axle toward (-) in step (e)	Refer to Fig 14 under "Chart 2"

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

Fig 11: Move Axle Toward Positive Side (Chart 1)

Selected Bolt Combination

Fig 12: Selected Bolt Combination Table

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 13: Replacing 1 Or 2 Selected Bolts
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

Fig 14: Move Axle Toward Negative Side (Chart 2)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Selected Bolt Combination

Fig 15: Selected Bolt Combination Table
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 16: Identifying Bolt Domination