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1G3-12 OM600 ENGINE INTAKE & EXHAUST
Removal & Installation Procedure
1. Remove the 2 hoses connected to intercooler.
2. Remove the hose(air cleaner to turbocharger) with blow byhose.
3. Disconnect the oil supply pipe.
4. Remove the oil return pipe.
5. Remove the support assembly.
6. Remove the 3 nuts(arrows).
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OM600 ENGINE INTAKE & EXHAUST 1G3-13
7. Remove the turbocharger disconnecting the exhaust pipefrom the turbocharger.
8. Installation should follow the removal procedure in the reverse order.
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2A-12 SUSPENSION DIAGNOSISSELF DIAGNOSIS TEST
DIAGNOSIS TEST
Special Tool Requirements : Scanner
1. Position the ignition switch to 'OFF'.
2. Connect Scanner harness connector to the engine compartment diagnosis socket.
3. Turn the ignition switch to 'ON' position.
4. Select "Electronic control vehicle diagnosis" from function selection display and press "Enter".
5. Select "Musso ('98 model year)" from vehicle model selection display and press 'Enter'.
6. Select "Electronic suspension system (ECS)" from control system selection display and press 'Enter'.
7. Select "Self-diagnosis" from diagnosis item selection display.
Notice
Check sensor value output display, if necessary.
8. Determine the fault code and check defective component. NoticeRefer to self-diagnosis list.
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WHEEL ALIGNMENT 2B-9
GENERAL DESCRIPTION AND SYSTEM OPERATION
FOUR WHEEL ALIGNMENT CASTER Caster is the tilting 91 the uppermost point of the steering axis either forward or backward from the vertical when viewed from the side of the vehicle. A backward tilt is positive, and a forward tilt is negative. Caster influencesdirectional control of the steering but does not affect
tire wear. Weak springs or overloading a vehicle will affect
caster. One wheel with more positive caster will pull
toward the center of the car. This condition will cause the car to move or lean toward the side with the least
amount of positive caster. Caster is measured in degrees. CAMBER Camber is the tilting of the top of the tire from the vertical when viewed from the front of the vehicle. When thetires tilt outward, the camber is positive. When the tires tilt inward, the camber is negative. The camber angle is measured in degrees from the vertical. Camber
influences both directional control and tire wear.
If the vehicle has too much positive camber, the outside
shoulder of the tire will wear. If the vehicle has too much
negative camber, the inside shoulder of the tire will wear.
The first responsibility of engineering is to design safesteering and suspension systems. Each componentmust be strong enough to withstand and absorb extremepunishment. Both the steering system and the front and the rear suspension must function geometrically with thebody mass. The steering and the suspension systems require that the front wheels self-return and that the tire rolling effortand the road friction be held to a negligible force in orderto allow the customer to direct the vehicle with the least effort and the most comfort. A complete wheel alignment check should include
measurements of the rear toe and camber. Four-wheel alignment assures that all four wheels will be running in precisely the same direction. When the vehicle is geometrically aligned, fuel economy and tire life are at their peak, and steering andperformance are maximized. TOE
Toe-in is the turning in of the tires, while toe-out is the turning out of the tires from the geometric centerline or thrust line. The toe ensures parallel rolling of the wheels. The toe serves to offset the small deflections of the wheel support system which occur when the vehicle is rollingforward. The specified toe angle is the setting whichachieves 0 degrees of toe when the vehicle is moving. Incorrect toe-in or toe-out will cause tire wear and
reduced fuel economy. As the individual steering andsuspension components wear from vehicle mileage,
additional toe will be needed to compensate for the wear. Always correct the toe dimension last.
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FRONT DRIVE AXLE 3A-5
VACUUM CIRCUIT
1 Engine
2 Vacuum Pump
3 3-way Connector
4 T-connector
5 Check Valve 6 Auto locking Hub Solenoid Valve
7 T-connector Hose
8 Hub Hose (left)
9 Hub Hose (right)
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HYDRAULIC BRAKES 4A-7
MAINTENANCE AND REPAIRON-VEHICLE SERVICE
BLEEDING THE BRAKES For Master Cylinder Replacement
1. Add oil after master cylinder replacement.
2. Run the engine and depress the brake pedal several times to build pressure and then keep the pedal fully depressed.
3. Loosen the screws of primary and secondary pipe at the master cylinder outlets to bleed air.
4. Repeat above step No.3 several times until there are no more air bubbles.
5. Bleed air in the system at the hydraulic unit outlet pipe and wheel if pressure building is not enough by depressing the pedal only after above air bleeding.
For Caliper and Brake Hose Replacement
1. Check the oil level from the oil reservoir and refill if necessary.
2. Run the engine and depress the pedal several times to build pressure and then keep the pedal fully depressed.
3. Connect a vinyl tube to the caliper breather and prepare a container to coentain brake oil.
4. Loosen the breather screw until there are no more bubbles.
5. Bleed air in the system at four (4) wheels in order as shown in right figure if pressure building is not enough by depressing the pedal after above air bleeding.
Tightening Torque
9 - 14 NmItem
Front Bleeder Screw
Rear Bleeder Screw
Notice
Do not reuse the bled brake fluid.
Always bleed the air after replacing brake fluid or
master cylinder, caliper, brake hose and pipe.
Always operate in normal order.
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4A-8 HYDRAULIC BRAKES
For Hydraulic Unit Replacement
1. Add oil after hydraulic unit replacement.
2. Run the engine and depress the pedal several times tobuild pressure and then keep the pedal fully depressed.
3. Loosen hydraulic pipe screws at the hydraulic unit outlets to bleed air.
4. Repeat above step No.3 several times until there are no more air bubbles.
5. Bleed air in the system from the wheels if pressure building is not enough by pressing the pedal only after above air bleeding.
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POWER BOOSTER 4C-5
PEDAL STROKE INSPECTION
1. Start the engine and stop it after one or two minutes.Depress the brake pedal several times. If the pedal goes down furthest the first time, but gradually rises after the second or third time, brake booster is normal.If there is no change in pedal stroke, the brake booster is abnormal.
2. Depress the brake pedal several times with engine stopped, and depress the brake pedal and start the engine. If the
pedal goes down slightly, the booster is normal.
3. Depress the brake pedal with engine running, and stop it with the pedal depressed. If there is no change in pedalheight during 30 sec., the booster is normal.