Rear Suspension & Wheel Alignment - Except Lancer Evolution Mitsubishi Lancer Evolution X

FASTENER TIGHTENING SPECIFICATIONS

FASTENER TIGHTENING SPECIFICATIONS

SERVICE SPECIFICATIONS

SERVICE SPECIFICATIONS

INTRODUCTION TO REAR SUSPENSION DIAGNOSIS

If the rear suspension is faulty, the vehicle will not run straightforward or noise will occur. Incorrect wheel alignment, malfunction of shock absorber, stabilizer bar, coil spring, control arms or worn or out-of-balance will cause these problems.

REAR SUSPENSION DIAGNOSTIC TROUBLESHOOTING STRATEGY

Use these steps to plan your diagnostic strategy. If you follow them carefully, you will be sure that you have exhausted most of the possible ways to find a rear suspension fault.

1. Gather information from the customer.
2. Verify that the condition described by the customer exists.
3. Find the malfunction by following the SYMPTOM CHART.
4. Verify malfunction is eliminated.

SYMPTOM CHART

SYMPTOM CHART

DIAGNOSIS

1. STEP 1. Check for loose rear suspension installation bolts and nuts. Q: Are the rear suspension installation bolts and nuts loose? YES: Retighten them, then go to Step 5 . NO: Go to Step 2.
2. STEP 2. Check the malfunction of shock absorbers (worn bushings). Q: Are the shock absorbers (bushings) in good condition? YES: Go to Step 3. NO: Replace the faulty part, then go to Step 5 .
3. STEP 3. Check the upper arms and/or lower arms and/or control links for deformity or damage. Q: Are the upper arms and/or lower arms and/or control links in good condition? YES: Go to Step 4. NO: Replace the faulty part, then go to Step 5 .
4. STEP 4. Check the trailing arms for deformity or damage. Q: Are the trailing arms in good condition? YES: Go to Step 5. NO: Replace the faulty part, then go to Step 5.
5. STEP 5. Retest the system. Q: Is the malfunction eliminated? YES: The procedure is complete. NO: Return to Step 1 .

1. STEP 1. Check the excessive tire inflation pressure. Refer to «TIRE INFLATION PRESSURE CHECK»(/mitsubishi/lancer-evolution/x-2007-2016/remont/wheel-tire-system/#wheel-and-tire-except-lancer-evolution__tire-inflation-pressure-check) . Q: Is the tire inflation pressure in good condition? YES: Go to Step 2. NO: Adjust the pressure, then go to Step 4 .
2. STEP 2. Check for malfunction of shock absorbers (weak or broken springs). Q: Are the shock absorbers in good condition? YES: Go to Step 3. NO: Replace the faulty part, then go to Step 4 .
3. STEP 3. Check the stabilizer bar and/or stabilizer links for deformity or damage. Q: Are the stabilizer bar and/or stabilizer link deformed or damaged? YES: Replace the faulty part, then go to Step 4. NO: Go to Step 4.
4. STEP 4. Retest the system. Q: Is the malfunction eliminated? YES: The procedure is complete. NO: Return to Step 1 .

1. STEP 1. Check for weak or deteriorated bushings. Q: Are the bushings in good condition? YES: Go to Step 2. NO: Replace the faulty part, then go to Step 5 .
2. STEP 2. Check for weak or broken springs. Q: Are the springs in good condition? YES: Go to Step 3. NO: Replace the faulty part, then go to Step 5 .
3. STEP 3. Check the upper arms and/or lower arms and/or control links for deformity or damage. Q: Are the upper arms and/or lower arms and/or control links deformed or damaged? YES: Replace the faulty part, then go to Step 5 . NO: Go to Step 4.
4. STEP 4. Check the trailing arms for deformity or damage. Q: Are the trailing arms deformed or damaged? YES: Replace the faulty part, then go to Step 5. NO: Go to Step 5.
5. STEP 5. Retest the system. Q: Is the malfunction eliminated? YES: The procedure is complete. NO: Return to Step 1 .

SPECIAL TOOLS

SPECIAL TOOLS Tool Tool number and name Supersession Application MB991004 Wheel alignment gauge attachment - Wheel alignment measurement < AWD vehicle with aluminum wheels > MB992123 Arm bushing remover and installer - Lower arm bushing removal and press-fit MB991448 Bushing remover and installer base MB991448-01 MB991449 Bushing remover and installer supporter - MB990767 Front hub and flange yoke holder MB990767-01 Fixing of the hub MB990241 Axle shaft puller MB990242 Puller shaft MB990244 Puller bar MB990241-01 or General service tool Rear wheel hub assembly removal MB991354 Puller body General service tool MB990211 Slide hammer General service tool MB992121 Arm bushing remover and installer - Trailing arm bushing removal and press-fit MB992125 Arm bushing base - MB992175 Base spacer - MB990326 Preload socket General service tool Stabilizer link ball joint rotation torque measurement MB991832 Spring compressor set MB991793 Spring compressor assembly MB991796 Attachment B MB991794 Upper plate MB991830 Fixture General service tool Rear coil spring compression

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REAR WHEEL ALIGNMENT CHECK AND ADJUSTMENT

1. Before the wheel alignment measurement, adjust the rear suspension, wheel, and tires in good condition.
2. Park the vehicle on a level surface to measure the wheel alignment.

TOE-IN

Standard value: 3 ± 2 mm (0.12 ± 0.08 inch)

If it is out of the standard range, adjust as follows

Turn the toe adjusting bolt (the mounting bolt inside the body on the control link) to adjust.

Left wheels: Clockwise --> (+) Toe in

Right wheels: Clockwise --> (-) Toe in

Toe-in varies approximately 2.6 mm (0.10 inch) (equivalent to 0°16' of the toe angle for one side) for each scale mark.

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CAMBER

Standard value: -0°55' ±0°30' (Difference between right and left wheels must be 0°30' or less.)

Note. For FWD vehicles with aluminum wheels, attach the camber/caster/kingpin gauge by using a compensator. For AWD vehicles with aluminum wheels, tighten the wheel alignment gauge attachment (Special tool: MB991004) to the specified torque, then measure the camber. The camber is pre-adjusted at factory and is not adjustable.

STABILIZER LINK BALL JOINT DUST COVER INSPECTION

1. Using your fingers, press the dust cover to check for a crack or damage.
2. If the dust cover has a crack or damage, replace the stabilizer link. NOTE: If the dust cover has a crack or damage, the ball joint could be damaged.

REMOVAL AND INSTALLATION

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<< A >> CONTROL LINK REMOVAL

Make a mating mark on the toe adjusting bolt, and remove the control link.

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<< B >> LOWER ARM AND TRAILING ARM DISCONNECTION

While jacking-up the lower arm with garage jack, remove the mounting bolts.

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>> A << UPPER ARM INSTALLATION

Install the upper arm so that the hole faces the body side.

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>> B << CONTROL LINK INSTALLATION

Install the control link so that the identification mark faces the outside of the body.

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CONTROL LINK AND UPPER ARM PILLOW BALL BUSHING ROTATION STARTING TORQUE CHECK < AWD >

Required Special Tool

1. MB990326: Preload socket

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1. Insert the bolt to the control link pillow ball bushing or upper arm pillow ball bushing, and install the nut with the washer from the opposite side. Rotate the inner cylinder (including washer) for several turns, and measure the rotation starting torque of the control link pillow ball bushing or upper arm pillow ball bushing using special tool MB990326. Standard value: 2.0 - 4.5 N.m (17.7 - 39.8 in-lb)
2. When the measured value exceeds the standard range, replace the control link or upper arm.
3. When the measured value is less than the standard range, check that the control link pillow ball bushing or upper arm pillow ball bushing has no looseness or gritty feeling. If there is no looseness or gritty feeling, it is judged as usable.

LOWER ARM BUSHING REPLACEMENT

Required Special Tools

1. MB992123: Arm Bushing Remover and Installer
2. MB991448: Bushing Remover and Installer Base
3. MB991449: Bushing Remover and Installer Supporter

Use the special tools MB992123, MB991448 and MB991449 to remove and press-fit the lower arm bushing.

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Required Special Tools

1. MB990211: Slide Hammer
2. MB990241: Axle Shaft Puller
3. MB990242: Puller Shaft
4. MB990244: Puller Bar
5. MB990767: Front Hub and Flange Yoke Holder
6. MB991354: Puller Body

<< A >> REAR DRIVESHAFT NUT REMOVAL

Use special tool MB990767 to fix the hub and remove the driveshaft nut.

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<< B >> REAR BRAKE CALIPER ASSEMBLY REMOVAL

1. Remove the brake caliper assembly with brake hose.
2. Secure the removed brake caliper assembly with a wire or other similar material at a position where it will not interfere with the removal and installation of the rear wheel hub assembly.

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1. If the rear wheel hub assembly is seized with the rear driveshaft assembly, use special tools MB990242 and MB990244, MB991354 and MB990767 to push the rear driveshaft assembly out from the hub and then remove the rear wheel hub assembly. < AWD >
2. If the rear wheel hub assembly is seized with the knuckle, use special tools MB990211 and MB990241 {combination (A)}, or MB990211 and MB991354 {combination (B)} to remove the rear wheel hub assembly.

<< D >> REAR BRAKE ASSEMBLY REMOVAL

Without separating the parking brake cable, hang the rear brake assembly at the body-side using a string.

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1. Incorporate the driveshaft washer as shown in the figure.
2. Using special tool MB990767, tighten the driveshaft nut. At this time, tighten the nut to the specified lower limit torque so that the pin hole may align with cotter pin. Tightening torque: 144 - 176 N.m (107 - 129 ft-lb)
3. If the pin holes do not align with the pins, tighten the driveshaft nut [less than 176 N.m (129 ft-lb)] and find the nearest hole, then bend the cotter pin to fit it.

INSPECTION

1. Check the bushings for wear and deterioration.
2. Check the trailing arm for bending or damage.

TRAILING ARM BUSHING REPLACEMENT < FWD >

Required Special Tools

1. MB992121: Arm Bushing Remover and Installer
2. MB992125: Arm Bushing Base

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1. Use the special tools MB992121 and MB992125 to remove the trailing arm bushing
2. Determine the installation direction and the installation position of the trailing arm bushing. Install so that the protruding side of the trailing arm bushing inner pipe faces inside the body. Position horizontally the trailing arm bushing to body connecting part, and locate bushing inner space as shown in the figure.
3. Use the special tools MB992121 and MB992125 to press-fit the trailing arm bushing up to the position shown in the figure

TRAILING ARM BUSHING REPLACEMENT < AWD >

Required Special Tools

1. MB992121: Arm Bushing Remover and Installer
2. MB992125: Arm Bushing Base
3. MB992175: Base Spacer

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1. Use special tools MB992121 and MB992125 to remove the trailing arm bushing
2. Determine the installation direction and the installation position of the trailing arm bushing. Install so that the protruding side of the trailing arm bushing inner pipe faces inside the body. Position horizontally the trailing arm bushing to body connecting part, and locate bushing inner space as shown in the figure.
3. Use special tools MB992121, MB992125 and MB992175 to press-fit the trailing arm bushing up to the position shown in the figure.

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<< A >> LOWER ARM AND TRAILING ARM DISCONNECTION

While jacking-up the lower arm with garage jack, remove the mounting bolts.

<< B >> SHOCK ABSORBER ASSEMBLY REMOVAL

After having loosened the lower arm and rear suspension crossmember connection, remove the shock absorber assembly.

>> A << SHOCK ABSORBER ASSEMBLY INSTALLATION

Install the shock absorber assembly so that the coil spring end faces the rear of the vehicle.

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1. Check the rubber parts for cracks and wear.
2. Check the shock absorber for malfunctions, oil leakage, or abnormal noise.

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Required Special Tools

1. MB991793: Spring Compressor
2. MB991796: Attachment B
3. MB991794: Upper Plate
4. MB991830: Fixture

<< A >> SELF-LOCKING NUT REMOVAL

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1. Install special tool MB991796 to special tool MB991793 as shown in the figure.
2. Set the shock absorber assembly to special tools MB991793, MB991796, MB991794 and MB991830. NOTE: Use the bolts and nuts removed from the vehicle to secure the shock absorber assembly and tighten them lightly by hand.
3. After setting the shock absorber assembly, operate the spring compressor and compress the coil spring by approximately 5 mm (0.2 inch).
4. While holding the piston rod, remove the self-locking nut.

<< B >> SHOCK ABSORBER DISPOSAL PROCEDURES

Before disposal of the shock absorber, place the shock absorber on the level surface with the piston rod extended, and make a hole of approximately 3 mm (0.1 inch) in diameter at the point shown in the figure to discharge the gas.

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1. Align the end of the coil spring with the shock absorber as shown in the figure.
2. Set the shock absorber assembly to special tools MB991793, MB991796, MB991794 and MB991830. NOTE: Use the bolts and nuts removed from the vehicle to secure the shock absorber assembly and tighten them lightly by hand.

>> B << SELF-LOCKING NUT INSTALLATION

Counter the piston rod of the shock absorber as shown in the figure, and tighten the self-locking nut to the specified torque.

Tightening torque: 25 ± 5 N.m (18 ± 3 ft-lb)

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>> A << STABILIZER BAR/BUSHING/STABILIZER BRACKET INSTALLATION

Position the identification mark of the stabilizer bar at the left side of the vehicle as shown in the figure, and tighten the stabilizer bracket mounting bolt.

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1. Check the bushings for wear and deterioration.
2. Check the stabilizer bar for deterioration or damage.
3. Check all bolts for condition and straightness.

STABILIZER LINK BALL JOINT ROTATION TORQUE CHECK

Required Special Tool

1. MB990326: Preload socket

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1. Move the stabilizer link ball joint stud back and forth for several times, install the stud with nut, and measure the stabilizer link ball joint rotation torque using the special tool MB990326. Standard value: 0.5 - 2.9 N.m (4.4 - 25.7 in-lb)
2. When the measured value exceeds the standard range, replace the stabilizer link.
3. When the measured value is lower than the standard value, check the stabilizer link ball joint that there is no looseness or gritty feeling. If there is no looseness or gritty feeling, it is judged as usable.

STABILIZER LINK BALL JOINT DUST COVER CHECK

1. Using your fingers, press the dust cover to check for a crack or damage.
2. If the dust cover has a crack or damage, replace the stabilizer link. NOTE: If the dust cover has a crack or damage, the ball joint could be damaged.

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<< A >> REAR SUSPENSION CROSSMEMBER REMOVAL

To avoid the break hose load, fix the trailing arm assembly with a rope as shown in the figure.

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1. Check the crossmember for cracks or deformation.
2. Check all bolts for condition and straightness.

See also:
• TIRE INFLATION PRESSURE CHECK
• INSPECTION PROCEDURE 1: SQUEAKS OR OTHER ABNORMAL NOISE