Page 776 of 1463
OM600 ENGINE CONTROLS 1F3-47
2. Remove the connecting rod (9).
3. Disconnect the vacuum lines (13, 14).
4. Remove the accelerator control damper (10).
(Manual transmission vehicle)
5. Remove the suction line (16) and pressure line (4).
6. Remove the banjo bolt (1) and then remove the seal (2)
and fuel line (3).
7. Remove the plastic clip (8) on the injection line.
Removal Procedure
1. Position then no.1 cylinder at 15° ATDC.
Notice
Do not rotate the engine in opposition direction of engine
rotation.
8. Disconnect the injection lines (15) from the injection pump
(25).
9. Remove the banjo bolt (1) and then remove the seal (7)
and return line (5).
Page 779 of 1463
1F3-50 OM600 ENGINE CONTROLS
10. Connect the fuel pipes
Notice
Replace the seal.
Box Wrench Insert 000 589 77 03 00
Return Line
Fuel Injection Line
Fuel feed Line
Suction and Pressure Line46 Nm
18 Nm
13 Nm
13 Nm
5. Coat the new seal (23) with engine oil and install it.
6. Insert the fuel injection pump (25) and tighten the bolts
(22).
7. Remove the locking screw (32).
Tightening Torque 23 Nm
8. Tighten the bolt(12).
9. Insert the washer (21) and tighten the bolts (20) and then
remove the assembly cage (29).
Tightening Torque 23 Nm
Tightening Torque 46 Nm
Page 995 of 1463

5A-18 AUTOMATIC TRANSMISSION
INTRODUCTION
The BTR Automotive Model 74 Four Speed Automatic Transmission is an electronically controlled overdrive four
speed unit with a lock-up torque converter. The lock-up torque converter results in lower engine speeds at cruise and
eliminates unnecessary slippage. These features benefit the customer through improved fuel economy and noise
reduction. Refer to table 1.1 for details of power, torque and configuration.
Of primary significance is the transmission control unit (TCU) which is a microprocessor based control system. The
TCU utilizes throttle position, rate of throttle opening, engine speed, transmission output speed, transmission sump
temperature, gear selector position and mode selector inputs, and in some applications a ‘kickdown’ switch to control
all shift feel and shift schedule aspects.
The TCU drives a single proportional solenoid multiplexed to three regulator valves to control all shift feel aspects.
The output pressure of this solenoid is controlled as a function of transmission sump temperature to maintain consistent
shift feel throughout the operating range.
Shift scheduling is highly flexible, and several independent schedules are programmed depending on the vehicle.
Typically the ‘NORMAL’ schedule is used to maximise fuel economy and driveability, and a ‘POWER’ schedule is used
to maximise performance. ‘WINTER’ schedule is used to facilitate starting at second gear.
Figure 1.1 details the differences between conventional and electronic transmission control systems.
Max Torque (Nm)
320Configuration
260 mm Torque Converter
Wide Ratio Gear Set
Splined Output for Transfer CaseMin Torque (Nm)
160 Model
M74 4WD
Transmission Table 1.1 - M74 Torque, Power and Configuration
Page 1020 of 1463

AUTOMATIC TRANSMISSION 5A-43
Figure 4.1 - Power Flow Diagram
TORQUE CONVERTER
The torque converter (refer figure 4.2) consists of a turbine,
stator pump, impeller and a lock-up damper and piston
assembly. As in conventional torque converters, the impeller is
attached to the converter cover, the turbine is splined to the
input shaft and the stator is mounted on the pump housing via
a one way clutch (sprag).
The addition of the damper and piston assembly enables the
torque converter to ‘lock-up’ under favourable conditions. Lock-
up is only permitted to occur in third and fourth gears under
specified throttle and road speed conditions.
Lock-up is achieved by applying hydraulic pressure to the
damper and piston assembly which couples the turbine to the
converter cover, locking-up the converter and eliminating
unwanted slippage. Whenever lock-up occurs, improved fuel
consumption is achieved. Torsional damper springs are
provided in the damper and piston assembly to absorb any
engine torque fluctuations during lock-up.
Figure 4.2 - Torque Converter Cross Section
Page 1266 of 1463

6A-6 POWER STEERING SYSTEM
OIL PUMP PRESSURE CHECK
Oil Pump Pressure Check
1. Disconnect the pressure hose from the oil pump connect a
pressure gauge between the oil pump and pressure hose
2. Bleed the system . Start the engine and turn the steering
wheel form lock several times until oil temperature is up to
50°C
3. Run the engine at 1,000 rpm.
4. Close the pressure gauge valve and check oil pressure.
Notice
Do not keep the valve closed for more than 10 seconds.
5. Remove the pressure gauge and connect the pressure
hose.
6. Do bleeding procedure.
BLEEDING OF POWER STEERING
SYSTEM
Bleeding of Power Steering System
1. Disconnect the fuel line. Using a starter motor, crank the
engine and turn the steering wheel from lock to lock 5 or 6
times.
Notice
Do bleeding with engine cranking. If bleed with idling, there
can be a air contact with oil.
2. Connect the fuel feed line and start the engine at idle speed.
3. Turn the steering wheel from lock to lock until there is no
more air in oil reservoir.
4. Connect the oil level is within specification.
5. By turning the steering wheel left to right, check the oil level
change.
Notice
lIf oil is not changes more than 5mm, do bleeding again.
lIf oil level rises suddenly when stopped engine, again.
Relief Pressure75 - 82 kg/cm2
Page 1376 of 1463
INSTRUMENTATION/DRIVER INFORMATION 9E-3
COMBINATION METER
COMPONENT LOCATOR
1. Speedometer
2. Odometer
3. Trip odometer
4. Tachometer
5. Coolant temperature gauge
6. Fuel gauge
7. Low fuel level warning light
8. Turn signal indicator (left)
9. Turn signal indicator (right)
10. Outside rearview mirror & tailgate heating switch
11. Reset button
12. Auto shift indicator*
13. Door open warning light
14. TCS indicator (equipped with ABD)*
21. ABS warning light*22. EBD warning light*
23. ECS / SPORT warning light*
24. 4 - wheel warning light*
25. 4 - wheel high indicator
26. 4 - wheel low indicator
27. WINTER indicator
28. POWER indicator
29. High beam indicator
15. Alternator warning light
16. Engine oil pressure warning light
17. Brake system warning light
18. Glow indicator light (For Diesel engine)
19. Airbag warning light*
20. Seat belt reminder