Page 367 of 1463
OM600 ENGINE MECHANICAL 1B3-65
11. Remove the alternator bracket (16).
9. Disconnect the pipes of power steering pump and remove
the belt pulley.
Notice
Be careful not to lose the key.
10. Remove the nut and pull out the bolt and then remove the
power steering pump.
12. Remove the fuel filter.
Page 371 of 1463
OM600 ENGINE MECHANICAL 1B3-69
10. Install the fuel filter.
11. Install the vacuum pump.
12. Install the power steering pump.
13. Install the power steering pump pulley.
Tightening Torque 25 Nm
Tightening Torque 10 Nm
Tightening Torque 23 Nm
Tightening Torque 32 Nm
14. Install the guide pulley bracket.
Tightening Torque 9 Nm
Page 818 of 1463

SUSPENSION DIAGNOSIS 2A-3
DIAGNOSIS
GENERAL DIAGNOSIS
Checks
Loosened Mountings
Damaged or Worn wheel Bearing
Damaged Shock Absorber
Damaged TireAction
Retightening
Replace
Replace
Replace
Abnormal Noises
Checks
Broken Stabilizer Bar
Faulty Shock AbsorberAction
Replace
Replace
Vehicle Rolling
Checks
Over Inflated Tire
Faulty Shock Absorber
Loosened wheel Nut
Bent or Broken Coil Spring
Damaged Tire
Worn BushingAction
Pressure Adjustment
Replace
Tighten as Specified
Replace
Replace
Replace
Poor Riding
Problems in the steering, the suspension, the tires, and
the wheels involve several systems. Consider all systems
when you diagnose a complaint. Some problems, such
as abnormal or excessive tire wear and scuffed tires,
may by the result of hard driving. Always road test thevehicle first. If possible, do this road test with the
customer.
Proceed with the following preliminary checks. Correct
any substandard conditions.
Checks
Incorrect Wheel Alignment
Excessive Resistance of Lower Arm Ball Joint
Insufficient Tire Pressure
Faulty Power Steering
Action
Repair
Replace
Adjust
Repair or Replace
Hard Steering
Checks
Deformed Arm Assembly
Worn Bushing
Bent or Broken Coil Spring
Difference Between L/H & R/H HeightsAction
Replace
Replace
Replace
Adjust
Vehicle Pulls to Right or Left
Page 1261 of 1463

Application
Steering Wheel
Steering Gear Box
Oil Pump
Steering Column
Minmum Turning Radius
Oil
SECTION 6A
POWER STEERING SYSTEM
TABLE OF CONTENTS
Specifications . . . . . . . . . . . . . . . . . . . . . . . . 6A-1
General Specifications . . . . . . . . . . . . . . . . . . 6A-1
Fastener Tightening Specifications . . . . . . . . . 6A-1
Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . 6A-2
Hard Steering . . . . . . . . . . . . . . . . . . . . . . . . . 6A-2
Steering Pulls to One Side . . . . . . . . . . . . . . . 6A-2
Excessive Wheel Play . . . . . . . . . . . . . . . . . . . 6A-2
Poor Return of Steering Wheel . . . . . . . . . . . . 6A-2
Steering Wheel Shimmy . . . . . . . . . . . . . . . . . 6A-3
SPECIFICATIONS
GENERAL SPECIFICATIONS
Abnormal Noise From Steering System . . . . . 6A-3
Component Locator . . . . . . . . . . . . . . . . . . . 6A-4
Steering System . . . . . . . . . . . . . . . . . . . . . . . 6A-4
Maintenance and Repair . . . . . . . . . . . . . . . 6A-5
On-Vehicle Service . . . . . . . . . . . . . . . . . . . . . 6A-5
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6A-5
Oil Pump Pressure Check . . . . . . . . . . . . . . . . 6A-6
Bleeding of Power Steering System . . . . . . . . 6A-6
Steering Gear Box . . . . . . . . . . . . . . . . . . . . . 6A-7
Number of Spoke
Outer Diameter
Type
Gear Ratio
Inner Steering Angle
Outer Steering Angle
Type
Maximum Pressure
Upper Tilting Angle
Lower Tilting Angle
Type
Capacity
Change Interval
Description
4
396 mm
Rack and Pinion
¥
33°37'
31°50'
Vane
75-82 kg/cm
2
4.646°
6.969°
5.25m
ATF DEXRON II
1 L
Every 24,000 km
FASTENER TIGHTENING SPECIFICATIONS
Application
Steering Shaft Bolt
Pressure Hose Bolt
Return Pipe Nut
Slotted Nut
Steering Gearbox BoltNlm
30 - 40
12 - 18
12 - 18
35 - 45
35 - 45
Page 1262 of 1463

6A-2 POWER STEERING SYSTEM
Checks
Damaged or Binding Steering Ball Joint
Improper Preload of Steering Pinion
Damaged Wheel or Tire
Faulty Suspension SystemChecks
Worn Steering Gear
Worn or Damaged Steering Ball Joint
Loosened Steering Gearbox BoltsChecks
Damaged Steering Linkage
Damaged Wheel and Tire
Faulty Brake System
Faulty Suspension SystemChecks
Lack of Lubrication
Abnormal Wear or Binding of Steering Ball Joint
Damaged or Faulty Steering Gear
Improper Preload of Steering Pinion
Faulty Steering Shaft Joint
Steering Fluid Leaks
Lack of Fluid or Air-in System
Faulty Steering Oil Pump
Damaged or Loosened Pump Drive Belt
Clogging Oil Line
Damaged Wheel or Tire
Faulty Suspension System
DIAGNOSIS
HARD STEERING
Action
Lubricate
Replace
Replace gear assembly
Adjust
Replace
Repair or replace
Replenish or bleed
Replace
Adjust or replace
Repair or replace
Repair or replace
Repair or replace
STEERING PULLS TO ONE SIDE
Action
Repair
Repair or replace
Repair or replace
Repair or replace
EXCESSIVE WHEEL PLAY
Action
Replace gear assembly
Replace
Retighten
POOR RETURN OF STEERING WHEEL
Action
Replace
Replace gear assembly
Repair or replace
Repair or replace
Page 1263 of 1463
POWER STEERING SYSTEM 6A-3
Checks
Loosened Steering Gearbox Mounting Bolt
Faulty Steering Gear
Steering Column Linterference
Loosened Steering Linkage
Damaged or Loosened Oil Pump Drive Belt
Loosened Oil Pump Bracket
Loosened Oil Pump Mounting Bolt
Air-in System
Faulty Oil PumpChecks
Damaged Steering Linkage
Loosened Steering Gearbox Mounting Bolt
Damaged or Binding Steering Ball Joint
Worn or Damaged Front Wheel Bearing
Damaged Wheel or Tire
Faulty Suspension System
STEERING WHEEL SHIMMY
Action
Replace
Retighten
Replace
Replace
Repair or replace
Repair or replace
ABNORMAL NOISE FROM STEERING SYSTEM
Action
Retighten
Replace gear assembly
Replace
Retighten
Adjust or replace
Retighten
Retighten
Bleed
Replace
Page 1264 of 1463
6A-4 POWER STEERING SYSTEM
1 Steering Wheel
2 Steering Column Shaft
3 Steering Gear Box
4 End Ass'y - Tie Rod
COMPONENT LOCATOR
STEERING SYSTEM
5 Lower Shaft
6 Oil Reservoir
7 Oil Pump
8 Steering Knuckle
Page 1265 of 1463

POWER STEERING SYSTEM 6A-5
MAINTENANCE AND REPAIR
ON-VEHICLE SERVICE
INSPECTION
Steering Wheel Freeplay Inspection Procedure
1. Start the engine and set the wheels in straight ahead position.
2. Slightly move the steering wheel to the left and right and
measure steering wheel free play when the front wheel is
start to move.
Notice
If exceeds specification, the steering column shaft
connections and steering linkage .clearance. Replace or
repair if necessary.
Steering Angle Inspection Procedure
1. Place the front wheel on a measuring tool.
2. Rotate steering wheel all the way right and left and measure
steering angle
Notice
If out of standard, check or adjust toe-in.
Standard33°37'
31°50'Inner
Outer
Steering Effort Inspection Procedure
1 Place a vehicle on the paved flat ground with front wheels
in a straight ahead position.
2 Start the engine and run it at 1,000rpm.
3 Using a scale, measure the steering effort in both directions.
Notice
The difference in steering effort of left and right should be
within 0.6 kg.
StandardMax. 3.0kg
StandardMax. 30mm