Suspension System: Adjustments Dodge Durango II рестайлинг

WHEEL ALIGNMENT

1. CASTER (1) is the forward or rearward tilt of the steering knuckle from vertical. Tilting the top of the knuckle forward provides less positive caster. Tilting the top of the knuckle rearward provides more positive caster. Positive caster promotes directional stability. This angle enables the front wheels to return to a straight ahead position after turns.
2. CAMBER (2) is the inward or outward tilt of the wheel relative to the center of the vehicle. Tilting the top of the wheel inward provides negative camber. Tilting the top of the wheel outward provides positive camber. Incorrect camber will cause wear on the inside or outside edge of the tire.
3. TOE (4) is the difference between the leading inside edges and trailing inside edges of the front tires. Wheel toe position out of specification cause's unstable steering, uneven tire wear and steering wheel off- center. The wheel toe position is the final front wheel alignment adjustment.
4. THRUST ANGLE (3) is the angle of the rear axle relative to the centerline of the vehicle. Incorrect thrust angle can cause off-center steering and excessive tire wear. This angle is not adjustable, damaged component(s) must be replaced to correct the thrust angle.

PRE-ALIGNMENT INSPECTION

Before starting wheel alignment, the following inspection and necessary corrections must be completed. Refer to Suspension and Steering System Diagnosis Chart below for additional information.

Note. Vehicle should have a full tank of fuel prior to measuring and adjusting alignment.

1. Inspect tires for size, air pressure and tread wear.
2. Inspect front wheel bearings for wear.
3. Inspect front wheels for excessive radial or lateral runout and balance.
4. Inspect ball studs, linkage pivot points and steering gear for looseness, roughness or binding.
5. Inspect suspension components for wear and noise.
6. Check suspension ride height.
7. Road test the vehicle.

SUSPENSION AND STEERING SYSTEM DIAGNOSIS CHART

HEIGHT ADJUSTMENT

The vehicle suspension height MUST be measured and adjusted before performing wheel alignment procedure. See STANDARD PROCEDURE . Also when front suspension components have been replaced. This measurement must be performed with the vehicle supporting it's own weight and taken on both sides of the vehicle.

To adjust the vehicle height turn the torsion bar adjustment bolt CLOCKWISE to raise the vehicle and COUNTERCLOCKWISE to lower the vehicle.

Note. If a height adjustment has been made, perform height measurement again on both sides of the vehicle.

Scheme 9

The wheel toe position adjustment is the final adjustment.

1. Start the engine and turn wheels both ways before straightening the wheels. Secure the steering wheel with the front wheels in the straight-ahead position.
2. Loosen the tie rod jam nuts (3). NOTE: Each front wheel should be adjusted for one-half of the total toe position specification. This will ensure the steering wheel will be centered when the wheels are positioned straight-ahead.
3. Adjust the wheel toe position by turning the inner tie rod (4) as necessary.
4. Tighten the tie rod jam nut (3) to 130 N.m (96 ft. lbs.).
5. Verify the specifications.
6. Turn off engine.

CAMBER, CASTER AND TOE ADJUSTMENT

Note. Suspension height measurement must be performed before an alignment.

Camber and caster angle adjustments involve changing the position of the lower control arm with the slots in the frame brackets to move the lower control arm inwards or outwards for proper adjustment. This can be achieved by using a long pry bar with a curved tip and inserting the pry bar into the lower control arm frame brackets and prying inwards or outwards.

Note. Camber and caster adjustments must be made at the lower control arm. Do not use the upper control arm for Camber and Caster adjustments.

Note. When the lower control arm pivot bolts are loosened the lower control arm will normally go outwards automatically with the weight of the vehicle.

TOE ADJUSTMENT

The wheel toe position adjustment is the final adjustment.

1. Start the engine and turn wheels both ways before straightening the wheels. Secure the steering wheel with the front wheels in the straight-ahead position.
2. Loosen the tie rod jam nuts (3). NOTE: Each front wheel should be adjusted for one-half of the total toe position specification. This will ensure the steering wheel will be centered when the wheels are positioned straight-ahead.
3. Adjust the wheel toe position by turning the inner tie rod (4) as necessary.
4. Tighten the tie rod jam nut (3) to 130 N.m (96 ft. lbs.).
5. Verify the specifications.
6. Turn off engine.

ALIGNMENT

Note. All alignment specifications are in degrees.