Front Suspension (Except Wrx): Other Subaru XV GP

CAUTION

1. Wear appropriate work clothing, including a helmet, protective goggles and protective shoes when performing any work.
2. Before removal, installation or disassembly, be sure to clarify the failure. Avoid unnecessary removal, installation, disassembly and replacement.
3. Use SUBARU genuine grease etc. or equivalent. Do not mix grease etc. of different grades or manufacturers.
4. Before securing a part on a vise, place cushioning material such as wood blocks, aluminum plate, or cloth between the part and the vise.
5. Be sure to tighten fasteners including bolts and nuts to the specified torque.
6. Place shop jacks or rigid racks at the specified points.
7. When the suspension-related components have been replaced, perform "VDC sensor midpoint setting mode" of the VDC. < Refer to «VDC SENSOR MIDPOINT SETTING MODE»(ref-560389-S40582429032013061300000) , ADJUSTMENT, VDC Control Module and Hydraulic Control Unit (VDCCM&H/U). >

GENERAL TOOL

STEERING ANGLE

1. Place the vehicle on turning radius gauge.
2. While depressing the brake pedal, turn the steering wheel fully to the left and right.
3. With the steering wheel held at each fully turned position, measure both the inner and outer wheel steering angles. Tire size Inner wheel Outer wheel P195/65R15 P205/55R16 P205/50R17 38.3°±1.5° 33.7°±1.5° P225/55R17 38.5°±1.5° 34.0°±1.5°

FRONT WHEEL TOE-IN

Toe-in: Inspection value

0±3 mm (0±0.12 in)

Scheme 44

1. Set the toe-in gauge in the position at wheel axis center height behind the right and left front tires.
2. Place a mark at the center of both left and right tires, and measure distance "A" between the marks.
3. Move the vehicle forward to rotate the tires 180°. NOTE: Be sure to rotate the tires in the forward direction.
4. Measure the distance "B" between the left and right marks. Find toe-in using the following calculation: A - B = Toe-in

REAR WHEEL TOE-IN

Refer to the FRONT WHEEL TOE-IN for rear toe-in inspection procedures. < Refer to FRONT WHEEL TOE-IN , INSPECTION, Wheel Alignment. >

Toe-in: Inspection value

3±3 mm (0.12±0.12 in)

Scheme 45

1. Park the vehicle on a level surface.
2. Move the vehicle 3 to 4 meters (10 to 13 feet) straight forward.
3. Draw the center of loci for both the front and rear axles.
4. Measure distance "L" between the center lines of the axle loci. Thrust angle: Inspection value 0°±30' Less than 30' when "L" is 23 mm (0.9 in) or less

When adjusting the toe-in, adjust it to the following value. < Refer to STEERING ANGLE , ADJUSTMENT, Wheel Alignment. >

Toe-in: Adjustment value

0±2 mm (0±0.08 in)

1. Check that the left and right wheel steering angles are within specification.
2. Loosen the left and right side steering tie-rod lock nuts (a).
3. Turn the left and right tie-rods by equal amounts until the toe-in is at the specification. NOTE: Both the left and right tie-rods are right-hand threaded. To increase toe-in, turn both tie-rods clockwise by equal amount (viewing from the inside of vehicle).
4. Tighten the tie-rod lock nut (a). Tightening torque: 85 N.m (8.67 kgf-m, 62.7 ft-lb)
5. Check and correct the tie-rod boot if twisted.

When adjusting, adjust it to the following value.

Toe-in: Adjustment value

3±2 mm (0.12±0.08 in)

Scheme 46

1. Loosen the self-locking nut for the lateral link assembly - front. NOTE: When loosening or tightening the adjusting bolt, hold the bolt head and turn the self-locking nut.
2. Turn the adjusting bolt until toe-in is within the specification. NOTE: When the left and right wheels are adjusted for toe-in at the same time, the movement of one scale graduation changes toe-in by approx. 1.3 mm (0.05 in). To increase toe-in. Rotate the left side clockwise. Rotate the right side counterclockwise. To decrease toe-in. Rotate the left side counterclockwise. Rotate the right side clockwise.
3. Attach and tighten a new self-locking nut. Tightening torque: 120 N.m (12.24 kgf-m, 88.5 ft-lb)

THRUST ANGLE

When adjusting, adjust it to the following value.

Thrust angle: Adjustment value

0°±20'

Less than 20' when "L" is 15 mm (0.6 in) or less

Scheme 47

Scheme 48

Scheme 49

1. Make thrust angle adjustments by turning the toe-in adjusting bolts of the rear suspension equally in the same direction.
2. When one rear wheel is adjusted in a toe-in direction, adjust the other rear wheel equally in toe-out direction, in order to make the thrust angle adjustment.
3. When the left and right adjusting bolts are turned by one graduation, the thrust angle will change approx. 15'. ("L" is approx. 11 mm (0.43 in)). NOTE: Thrust angle is a mean value of left and right wheel toe angles in relation to the vehicle body center line. Vehicle is driven straight in the thrust angle direction while slanting in the oblique direction depending on the degree of the mean thrust angle. Thrust angle: gamma = (α - β)/2 α: Rear RH wheel toe-in angle β: Rear LH wheel toe-in angle Substitute only the positive toe-in values from each wheel into α and β in the calculation.

BUSHING FRONT - FRONT ARM

1. Before assembly, inspect the following items and replace any faulty part with a new one. Check the front arm assembly for damage or cracks, and replace if defective. Visually check the bushing for abnormal cracks, fatigue or damage. Visually check the dust cover on the ball joint assembly for damage.
2. Align the alignment mark on the front arm assembly to the split portion of the bushing intermediate plate of the busing front - front arm.
3. Using the ST and a press, assemble the busing front - front arm. PREPARATION TOOL: ST: INSTALLER & REMOVER SET (927680000)

Scheme 50

Scheme 51

Scheme 52

1. Before installation, inspect the following items and replace any faulty part with a new one. Check the front arm assembly for damage or cracks, and replace if defective. Visually check the bushing for abnormal cracks, fatigue or damage. Visually check the dust cover on the ball joint assembly for damage.
2. Align a line extending from the center of recess portion with the ball joint after placing the protrusion (A) of recess portion to the ball joint side of the front arm assembly.
3. Using the ST and a press, install the busing rear - front arm. CAUTION: Align the upper face of front arm assembly and the end of bushing during installation. PREPARATION TOOL: ST1: REMOVER (20299AG000) ST2: BASE (20299AG010)

Scheme 53

Scheme 54

1. Lift up the vehicle, and then remove the front wheels.
2. Remove the front strut assembly. Place an alignment mark (a) on the adjusting bolt and the strut. Remove the brake hose bracket. Remove the clamp of ABS wheel speed sensor harness. Remove the adjusting bolts and flange bolts for the strut assembly. CAUTION: While holding the head of the adjusting bolt, loosen the flange nut. Remove the three nuts securing strut mount to body.

STRUT MOUNT - FRONT

Check the rubber part for deformation, cracks or deterioration, and then replace it with a new part if defective.

DUST COVER - INNER

If cracks or damage are found, replace it with a new part.

COIL SPRING - FRONT

If a permanent strain is found, replace it with a new part.

HELPER - FRONT STRUT

If major cracks or damage are found, replace it with a new part.

DISPOSAL

Scheme 55

1. Place the strut on a level surface with the piston rod fully expanded.
2. Using a 2 - 3 mm (0.08 - 0.12 in) dia. drill, make holes in areas shown in the figure.

IMPROPER VEHICLE POSTURE OR IMPROPER WHEEL ARCH HEIGHT

POOR RIDE COMFORT

1. Large rebound shock
2. Rocking of the vehicle continues too long after running over bump and hump.
3. Excessive shock in bumping