FASTENER TIGHTENING SPECIFICATIONS
| Item | Specification |
|---|---|
| Lower arm assembly | |
| Lower arm and crossmember connection bolt (Front) | 110 ± 11 N.m (81 ± 8 ft-lb) |
| Lower arm and crossmember connection nut (Rear) | 110 ± 11 N.m (81 ± 8 ft-lb) |
| Lower arm and knuckle connection nut | 71 ± 10 N.m (52 ± 7 ft-lb) |
| Stabilizer bar | |
| Stabilizer fixture bolt | 31 ± 4 N.m (23 ± 2 ft-lb) |
| Stabilizer link and strut connection nut | 39 ± 6 N.m (29 ± 4 ft-lb) |
| Stabilizer link and stabilizer bar connection nut | 39 ± 6 N.m (29 ± 4 ft-lb) |
| Strut assembly | |
| Strut nut (Jam nut) | 60 ± 9 N.m (44 ± 6 ft-lb) |
| Strut mounting nut | 45 ± 7 N.m (33 ± 5 ft-lb) |
| Knuckle and strut connection nut | 110 ± 11 N.m (81 ± 8 ft-lb) |
| Stabilizer link and strut connection nut | 39 ± 6 N.m (29 ± 4 ft-lb) |
| Wheel speed sensor clamp nut | 13 ± 2 N.m (115 ± 17 in-lb) |
| Break hose clamp nut | 13 ± 2 N.m (115 ± 17 in-lb) |
FASTENER TIGHTENING SPECIFICATIONS
SERVICE SPECIFICATIONS
| Item | Standard value |
|---|---|
| Toe-in mm (in) | 1 ± 2 (0.04 ± 0.08) |
| Camber | 0°05' ± 0°30' (Difference between right and left wheels must be 0°30' or less.) |
| Caster | 2°40' ± 0°30' (Difference between right and left wheels must be 0°30' or less.) |
| Kingpin inclination | 13°30' ± 1°30' |
| Lower arm ball joint rotation starting torque N.m (in-lb) | 2.2 - 4.1 (19 - 36) |
| Stabilizer link ball joint rotation torque N.m (in-lb) | 0.5 - 2.9 (4.4 - 25.7) |
SERVICE SPECIFICATIONS
LUBRICANT
| Item | Specified lubricant | Quantity | |
|---|---|---|---|
| Lower arm ball joint | Lip portion of dust cover | Multipurpose grease SAE J310, NLGI No. 2 or equivalent | As required |
| Inside of dust cover | 9.0 ± 1.0g (0.32 ± 0.04 oz.) | ||
LUBRICANT SPECIFICATIONS
INTRODUCTION TO FRONT SUSPENSION DIAGNOSIS
If the front suspension is faulty, the vehicle will not run straightforward or noise will occur. Incorrect wheel alignment, malfunction of strut assembly, stabilizer bar, coil spring, or worn or out-of-balance tires can cause these problems.
FRONT SUSPENSION DIAGNOSIS 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 front suspension fault.
- Gather information from the customer.
- Verify that the condition described by the customer exists.
- Find and repair the malfunction by following the SYMPTOM CHART and SYMPTOM PROCEDURES.
- Verify malfunction is eliminated.
SYMPTOM CHART
| Symptom | Inspection procedure | Reference |
|---|---|---|
| Steering wheel is heavy, vibrates or pulls to one side | 1 | INSPECTION PROCEDURE 1: STEERING WHEEL IS HEAVY, VIBRATES OR PULLS TO ONE SIDE |
| Excessive body rolling | 2 | INSPECTION PROCEDURE 2: EXCESSIVE BODY ROLLING |
| Poor ride | 3 | INSPECTION PROCEDURE 3: POOR RIDE |
| Unequal ride height | 4 | INSPECTION PROCEDURE 4: UNEQUAL RIDE HEIGHT |
| Noise | 5 | INSPECTION PROCEDURE 5: NOISE |
SYMPTOM CHART
DIAGNOSIS
- STEP 1. Check the tires. Refer to «DIAGNOSIS»(/mitsubishi/lancer-evolution/x-2007-2016/remont/wheel-tire-system/#wheel-and-tire-except-lancer-evolution__diagnosis) . Q: Are the tires in normal condition? YES: Replace the tires as necessary, then go to Step 2. NO: If out of balance, balance the tires as necessary. If excessively worn, replace the tires as necessary and go to Step 5 .
- STEP 2. Check the wheel alignment. Refer to «ON-VEHICLE SERVICE»(/mitsubishi/lancer-evolution/x-2007-2016/remont/suspension-front/#front-suspension-wheel-alignment-except-lancer-evolution) . Q: Is the wheel alignment correct? YES: Go to Step 3. NO: Adjust it (Refer to «FRONT WHEEL ALIGNMENT CHECK AND ADJUSTMENT»(/mitsubishi/lancer-evolution/x-2007-2016/remont/suspension-front/#front-suspension-wheel-alignment-except-lancer-evolution__front-wheel-alignment-check-and-adjustment) ), then go to Step 5 .
- STEP 3. Check the lower arm ball joint. Q: Is the ball joint in good condition? YES: Go to Step 4. NO: Replace the lower arm assembly (Refer to «LOWER ARM»(/mitsubishi/lancer-evolution/x-2007-2016/remont/suspension-front/#front-suspension-wheel-alignment-except-lancer-evolution) ), then go to Step 5 .
- STEP 4. Check the coil spring. Q: Is the coil spring in good condition? YES: Go to Step 5. NO: Replace it (Refer to «DISASSEMBLY AND ASSEMBLY»(/mitsubishi/lancer-evolution/x-2007-2016/remont/suspension-front/#front-suspension-wheel-alignment-except-lancer-evolution) ), then go to Step 5.
- STEP 5. Retest the system. Q: Is the malfunction eliminated? YES: The procedure is complete. NO: Return to Step 1 .
- STEP 1. Check for broken or deteriorated stabilizer bar. Q: Is the stabilizer bar in good condition? YES: Go to Step 2. NO: Replace it (Refer to «STABILIZER BAR»(/mitsubishi/lancer-evolution/x-2007-2016/remont/suspension-front/#front-suspension-wheel-alignment-except-lancer-evolution) ), then go to Step 3 .
- STEP 2. Check the strut assembly for damage. Q: Is the strut assembly in good condition? YES: Go to Step 3. NO: Replace it (Refer to «STRUT ASSEMBLY»(/mitsubishi/lancer-evolution/x-2007-2016/remont/suspension-front/#front-suspension-wheel-alignment-except-lancer-evolution) ), then go to Step 3.
- STEP 3. Retest the system. Q: Is the malfunction eliminated? YES: The procedure is complete. NO: Return to Step 1 .
- STEP 1. Check for improper 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 correct? YES: Go to Step 2. NO: Adjust it, then go to Step 4 .
- STEP 2. Check for broken or deteriorated coil spring(s). Q: Are the coil spring(s) broken or deteriorated? YES: Replace the coil spring(s) (Refer to «DISASSEMBLY AND ASSEMBLY»(/mitsubishi/lancer-evolution/x-2007-2016/remont/suspension-front/#front-suspension-wheel-alignment-except-lancer-evolution) ), then go to Step 4 . NO: Go to Step 3.
- STEP 3. Check for strut assembly damage. Q: Is the strut assembly damaged? YES: Replace it (Refer to «STRUT ASSEMBLY»(/mitsubishi/lancer-evolution/x-2007-2016/remont/suspension-front/#front-suspension-wheel-alignment-except-lancer-evolution) ), then go to Step 4. NO: Go to Step 4.
- STEP 4. Retest the system. Q: Is the malfunction eliminated? YES: The procedure is complete. NO: Return to Step 1 .
- STEP 1. Check for broken or deteriorated coil spring(s). Q: Is the coil spring(s) broken or deteriorated? YES: Replace it (Refer to «DISASSEMBLY AND ASSEMBLY»(/mitsubishi/lancer-evolution/x-2007-2016/remont/suspension-front/#front-suspension-wheel-alignment-except-lancer-evolution) ), then go to Step 2. NO: Go to Step 2.
- STEP 2. Retest the system. Q: Is the malfunction eliminated? YES: The procedure is complete. NO: Return to Step 1 .
- STEP 1. Check for lack of lubrication. Q: Is lubrication inadequate? YES: Lubricate it, then go to Step 5 . NO: Go to Step 2.
- STEP 2. Check the tightened parts for looseness as well as the bushings for wear. Q: Are the tightened parts and bushings in good condition? YES: Go to Step 3. NO: Replace it (Refer to «LOWER ARM REAR BUSHING REPLACEMENT»(/mitsubishi/lancer-evolution/x-2007-2016/remont/suspension-front/#front-suspension-wheel-alignment-except-lancer-evolution__lower-arm-rear-bushing-replacement) ), then go to Step 5 .
- STEP 3. Check for broken coil spring. Q: Is the coil spring broken? YES: Replace it (Refer to «DISASSEMBLY AND ASSEMBLY»(/mitsubishi/lancer-evolution/x-2007-2016/remont/suspension-front/#front-suspension-wheel-alignment-except-lancer-evolution) ), then go to Step 5 . NO: Go to Step 4.
- STEP 4. Check for strut assembly damage. Q: Is the strut assembly damaged? YES: Replace it (Refer to «STRUT ASSEMBLY»(/mitsubishi/lancer-evolution/x-2007-2016/remont/suspension-front/#front-suspension-wheel-alignment-except-lancer-evolution) ), then go to Step 5. NO: Go to Step 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 MB991004-01 or General service tool Wheel alignment measurement MB991832 MB991793 MB991795 MB991794 MB991829 MB991831 MB991830 Spring compressor set Spring compressor Attachment A Upper plate Arm bracket Spacer Fixture General service tool Front coil spring compression NOTE: The coil spring can not be compressed by following conventional special tools. MB991237 Spring compressor body MB991238 Arm set MB991680 MB991681 MB991682 Wrench set Wrench Socket - Strut assembly disassembly and assembly MB991006 Preload socket MB990228-01 Lower arm ball joint breakaway torque check MB990800 Ball joint dust cover installer MB990800-01 or General service tool Lower arm ball joint dust cover installation MB992119 Arm bushing & installer - Lower arm bushing removal and press-fitting MB990979 Ring - MB990890 Rear suspension bushing base MB990890-01 or general service tool MB990326 Preload socket General service tool Stabilizer link Ball joint turning torque check
Scheme 1
Scheme 2
Scheme 3
Scheme 4
FRONT WHEEL ALIGNMENT CHECK AND ADJUSTMENT
| CAUTION | After the installation, perform a calibration for the ASC-ECU to learn the steering wheel sensor neutral point. (Refer to STEERING WHEEL SENSOR CALIBRATION ). < Vehicles with ASC > |
Measure wheel alignment with alignment equipment on a level surface. The front suspension, steering system, wheels, and tires should be serviced to normal condition before measuring wheel alignment.
TOE-IN
Standard value: 1 ± 2 mm (0.04 ± 0.08 inch)
Scheme 5
- Adjust the toe-in by undoing the bellows clip and jam nut, and turning the left and right tie rod turnbuckles by the same amount (in opposite directions). NOTE: The toe will move out as the left turnbuckle is turned toward the front of the vehicle and the right turnbuckle is turned toward the rear of the vehicle.
- Install the bellows clip and tighten the jam nut to the specified torque. Tightening torque: 52 ± 2 N.m (38 ± 1 ft-lb)
- Confirm that the toe-in is at the standard value.
- Use a turning radius gauge to check that the steering angle is at the standard value (Refer to «STEERING ANGLE CHECK»(/mitsubishi/lancer-evolution/x-2007-2016/remont/manual-power-steering/#power-steering-except-lancer-evolution__steering-angle-check) < Vehicles without electrical power steering > or «STEERING ANGLE CHECK»(/mitsubishi/lancer-evolution/x-2007-2016/remont/electronic-steering/#electrical-power-steering-except-lancer-evolution__steering-angle-check) < Vehicles with electrical power steering >).
CAMBER, CASTER AND KINGPIN INCLINATION
Required Special Tool
Scheme 6
- MB991004: Wheel Alignment Gauge Attachment < Vehicles with aluminum wheels > Standard value: Camber: -0°05' ± 0°30' (Difference between right and left wheels must be 0°30' or less.) Caster: 2°40' ± 0°30' (Difference between right and left wheels must be 0°30' or less.) Kingpin inclination: 13°30' ± 1°30' NOTE: Camber and caster are preset at the factory and cannot be adjusted. CAUTION: Never subject the wheel bearings to the vehicle load when the drive shaft nuts are loosened. NOTE: For vehicles with aluminum type wheels, attach the camber/caster/kingpin gauge to the driveshaft by using the special tool MB991004. Tighten the special tool MB991004 to the same torque 144 - 176 N.m (106 - 130 ft-lb) as the driveshaft nut.
LOWER ARM BALL JOINT END PLAY CHECK
- Raise the vehicle.
- Remove the stabilizer link from the lower arm (Refer to «LOWER ARM»(/mitsubishi/lancer-evolution/x-2007-2016/remont/suspension-front/#front-suspension-wheel-alignment-except-lancer-evolution) ).
- Move the lower arm up and down with your hands to check for an excessive play in the axial direction of the ball joint. If there is an excessive play, replace the lower arm assembly (Refer to «LOWER ARM»(/mitsubishi/lancer-evolution/x-2007-2016/remont/suspension-front/#front-suspension-wheel-alignment-except-lancer-evolution) ).
LOWER ARM BALL JOINT DUST COVER CHECK
- Using your fingers, press the dust cover to check for a crack or damage.
- If the dust cover is cracked or damaged, replace the lower arm assembly (Refer to «LOWER ARM»(/mitsubishi/lancer-evolution/x-2007-2016/remont/suspension-front/#front-suspension-wheel-alignment-except-lancer-evolution) ). NOTE: If the dust cover has a crack or damage, the ball joint could be damage.
STABILIZER LINK BALL JOINT DUST COVER CHECK
- Using your fingers, press the dust cover to check for a crack or damage.
- If the dust cover has a crack or damage, replace the stabilizer link (Refer to «STABILIZER BAR»(/mitsubishi/lancer-evolution/x-2007-2016/remont/suspension-front/#front-suspension-wheel-alignment-except-lancer-evolution) ). NOTE: If the dust cover has a crack or damage, the ball joint could be damaged.
REMOVAL AND INSTALLATION
| CAUTION | The part indicated by * is the nut with friction coefficient stabilizer. During removal, ensure there is no damage, clean dust and soiling from the bearing and thread surfaces, and tighten it to the specified torque. |
Scheme 7
<< A >> STABILIZER LINK AND STRUT CONNECTION NUT REMOVAL
Use a hexagon wrench to remove the stabilizer link and strut connection nut as shown in the figure.
Scheme 8
>> A << STABILIZER LINK AND STRUT CONNECTION NUT INSTALLATION
Use a hexagon wrench to install the stabilizer link and strut connection nut as shown in the figure.
INSPECTION
- Check for oil leaks from the strut assembly.
- Check the strut assembly for damage or deformation.
Scheme 9
Required Special Tools
- MB991681: Wrench
- MB991682: Socket
- MB991793: Spring compressor
- MB991794: Upper plate
- MB991795: Attachment A
- MB991830: Fixture
Scheme 10
Scheme 11
Scheme 12
- Install special tool MB991795 to the special tool MB991793 as shown in the figure.
- Set the strut assembly to special tools: MB991793, MB991795, MB991794 and MB991830. NOTE: Use the bolts and nuts removed from the vehicle to secure the strut assembly and tighten them lightly by hand.
- After setting the strut assembly, operate the spring compressor and compress the coil spring by approximately 5 mm (0.20 in). CAUTION: The locking nut for the piston rod inside the strut may be loose. Do not use the impact wrench to loosen the strut nut (jam nut).
- Use special tools MB991681, MB991682 to loosen the strut nut (jam nut).
<< B >> STRUT REMOVAL
| CAUTION | Wear the protective glasses. Although the gas is harmless, drilling chips may be blown out by the gas. |
Before disposal of the strut, place the strut on the level surface with the piston rod extended, and make a hole of approximately 3 mm in diameter at the point shown in the figure to discharge the gas.
Scheme 13
Scheme 14
- Fit the coil spring to the spring tube securely.
- Install the coil spring equipping with the spring tube to align the bottom with the shape of the strut spring sheet.
>> B << STRUT BEARING INSTALLATION
| CAUTION | Install the strut bearing without any damage. |
Scheme 15
Scheme 16
Scheme 17
- Check that both of the coil spring ends align with the spring sheet groove correctly.
- Align the strut spring sheet hole with the upper spring sheet hole. NOTE: Use the pipe to align the holes easily CAUTION: Be careful that the hand is not pinched by the coil spring when aligning the piston rod with the hole of upper insulator while compressing the coil spring.
- While passing the strut piston rod through the hole of upper insulator by hand slowly compress the coil spring by special tool: MB991793, MB991795, MB991794 and MB991830. CAUTION: The locking nut for the piston rod inside the strut may be loose. Do not use the impact wrench to loosen the strut nut (jam nut).
- Use special tools MB991681 and MB991682 to tighten the strut nut (jam nut) to the specified torque: Tightening torque: 60 ± 9 N.m (44 ± 6 ft-lb)
- Check the bearing for wear or rust.
- Check the rubber parts for damage or deterioration.
- Check the spring for deformation, deterioration or damage.
- Check the shock absorber for deformation.
| CAUTION | The parts indicated by * are the bolts/nuts with friction coefficient stabilizer. In removal, ensure there is no damage, clean dust and soiling from the bearing and thread surfaces, and tighten them to the specified torque. |
Scheme 18
Scheme 19
- Raise up the stabilizer bar as shown in the figure and remove it.
- Check the bushing for wear and deterioration.
- Check the lower arm for bend or breakage.
- Check all bolts for condition and straightness.
LOWER ARM BALL JOINT ROTATION STARTING TORQUE
Required Special Tool
- MB991006: Preload socket
Scheme 20
- Move the lower arm ball joint stud back and forth for several times, and measure the lower arm ball joint rotation starting torque using special tool MB991006. Standard value: 2.2 - 4.1 N.m (19 - 36 in-lb)
- If the measured value exceeds the standard range, replace the lower arm assembly (Refer to «LOWER ARM»(/mitsubishi/lancer-evolution/x-2007-2016/remont/suspension-front/#front-suspension-wheel-alignment-except-lancer-evolution) ).
- Even if the measured value is within the standard range, check the lower arm ball joint that there is no looseness or gritty feeling. If there is no looseness or gritty feeling, it is judged as usable.
(Refer to LOWER ARM BALL JOINT DUST COVER CHECK )
LOWER ARM BALL JOINT DUST COVER REPLACEMENT
Required Special Tool
- MB990800: Ball joint dust cover installer
Only when the dust cover is damaged accidentally during maintenance, replace the dust cover as follows
Scheme 21
- Remove the dust cover.
- Fill and apply the specified grease into the inside and lip of the dust cover. Specified grease Multipurpose grease SAE J310, NLGI No.2 or equivalent Usage: Inside of dust cover: 9.0 ± 1.0 g (0.32 ± 0.04 oz.), Lip: As required
- Use the special tool ball joint remover and installer (MB990800) to drive in the dust cover to the point where it contact with the lower arm assembly.
- Using your fingers, press the dust cover to check for a crack or damage.
LOWER ARM REAR BUSHING REPLACEMENT
Required Special Tools
- MB992119: Arm bushing remover and installer
- MB990979: Ring
- MB990890: Rear suspension bushing base
Replace the back side bushing according to the following procedure.
Scheme 22
Scheme 23
Scheme 24
- Use special tools MB992119, MB990979 and MB990890 to remove the bushing.
- Use special tools MB992119, MB990979 and MB990890 to press-fit the bushing.
- Press-fit the bushing so that the bushing protrusion is in the direction shown in the figure.
- Press-fit the bushing until the special tool contacts with the lower arm assembly.
Scheme 25
<< A >> STABILIZER LINK AND STABILIZER BAR CONNECTION NUT/STABILIZER LINK AND STRUT CONNECTION NUT REMOVAL
Use a hexagon wrench to remove the stabilizer link and strut connection nut as shown in the figure.
Scheme 26
>> A << STABILIZER BAR INSTALLATION
Install the stabilizer bar as shown in the figure.
Scheme 27
>> B << STABILIZER BUSHING INSTALLATION
Install the stabilizer bushing as shown in the figure.
Scheme 28
>> C << STABILIZER LINK AND STRUT CONNECTION NUT/STABILIZER LINK AND STABILIZER BAR CONNECTION NUT INSTALLATION
Use a hexagon wrench to install the stabilizer link and strut connection nut as shown in the figure.
- Check the bushings for wear and deterioration.
- Check the stabilizer bar for deterioration or damage.
- Check all bolts for condition and straightness.
STABILIZER LINK BALL JOINT TURNING TORQUE CHECK
Required Special Tool
- MB990326: Preload socket
Scheme 29
- 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 starting torque using special tool MB990326. Standard value: 0.5 - 2.9 N.m (4.4 - 25.7 in-lb)
- When the measured value exceeds the standard value, replace the stabilizer link (Refer to «STABILIZER BAR»(/mitsubishi/lancer-evolution/x-2007-2016/remont/suspension-front/#front-suspension-wheel-alignment-except-lancer-evolution) ).
- If the measured value stays within the standard range, and there is looseness or gritty feeling, the component is judged as unusable and should be replaced.
(Refer to STABILIZER LINK BALL JOINT DUST COVER CHECK ).
See also:
• DIAGNOSIS
• TIRE INFLATION PRESSURE CHECK
• STEERING WHEEL SENSOR CALIBRATION
• STEERING ANGLE CHECK
• STEERING ANGLE CHECK
• INSPECTION PROCEDURE 1: STEERING WHEEL IS HEAVY, VIBRATES OR PULLS TO ONE SIDE
• FRONT WHEEL ALIGNMENT CHECK AND ADJUSTMENT
• LOWER ARM REAR BUSHING REPLACEMENT
• LOWER ARM BALL JOINT DUST COVER CHECK
• STABILIZER LINK BALL JOINT DUST COVER CHECK