Page 27 of 364
ENGINE – TIMING BELT, TIMING BELT B
11-21
10. Power steering oil pressure switch connector
11.Heat protector
12. Power steering oil pump ASSY
13. Power steering oil pump bracket
14. Idler pulley
15. Crank angle sensor16. Crankshaft sprocket
17. Crankshaft sensing blade
•Adjust the tension of the timing belt B
18. Timing belt B tensioner
19. Timing belt B
Removal guidelines
A
Removing the timing belt
1. Turn the crankshaft in a clockwise direction, and match up all
the timing marks until the No.1 cylinder is in the compressor top
dead centre position.
Caution
Turn the crankshaft in the normal way.
2. Remove the rubber plug from the rear cover of the timing belt,
and prepare the special tool for adjusting bolts (MD998738).
C
C
C
B
A
D
A
B
(engine oil)
Timing marks
Timing belt
valence
Page 28 of 364

ENGINE – TIMING BELT, TIMING BELT B11-22
3. Twist the special tool for adjusting bolts (MD998738) by hand
until it touches the tensioner arm.
Caution
The special tool for adjusting bolts (MD998738) can be
slowly twisted at a rate of about 30° per second but if it is
suddenly twisted the auto-tensioner rod cannot be easily
withdrawn, and this may lead to problems with twisting and
the possibility that the special tool for adjusting bolts
(MD998738) may become bent.
4. Twist the special tool for adjusting bolts (MD998738) a little, and
align the auto-tensioner rod with setting hole A, and the
tensioner cylinder with setting hole B.
5. Insert a wire or a pin into the aligned holes.
6. Remove the special tool for adjusting bolts (MD998738), and
then loosen the bolt for fitting the timing belt tensioner, and
remove the timing belt.
Caution
If a timing belt is being re-used, check and make a note of
the direction of the arrows indicating the rotational
direction (clockwise direction) on the back of the belt.
B
Removing the power steering oil pump ASSY
Remove the power steering oil pump ASSY from its bracket, with
the hose intact.
Note
Secure the removed power steering oil pump ASSY with string, and
put it somewhere where it will not hinder the removal or fitting of the
timing belt.
C
Removing the crankshaft sprocket
1. Hold the crankshaft sprocket in place using the special spanner
(MB991367) and the special pin (MB991385).
2. Remove the crankshaft sprocket.timing belt tensioner
arm
bolt for fitting the timing belt
tensioner
wire or pin
Crankshaft
sprocket
Page 36 of 364
ENGINE – ENGINE ASSY11-30
Caution
Parts marked * should be temporarily tightened, and then tightened properly when the full weight of the engine is
being supported by the chassis.
20. Vacuum tank, solenoid valve, vacuum
pipe and hose ASSY
21. Brake booster vacuum hose connection
22. Purge hose connection
23. Power steering oil pressure switch
connector
24. Heat protector
25. Power steering oil pump
26. A/C compressor connector
27. A/C compressor
A/C>28. Heater hose connection
29. Fuel return hose connection
30. Fuel high pressure hose connection
31. O-ring
•Transfer ASSY, transmission ASSY
32. Engine mount bracket & stopper ASSY
33. Engine ASSY
B
B
D
D
C
C
D
B
E
A
(engine oil)
Page 37 of 364

ENGINE – ENGINE ASSY
11-31
Removal guidelines
A
Removing the drive belt
The following operations are necessary because the engine uses a
serpentine drive system with auto-tensioner.
1. Insert a 12.7sq spinner handle into the auto-tensioner tool hole,
and turn the auto-tensioner in an anti-clockwise direction before
it reaches the stopper.
2. Align hole A and hole B, insert an L-shaped hexagonal Allen
Key, to hold the position, and remove the drive belt.
Caution
If planning to re-use the drive belt, ensure that it will be
refitted the same way round, by marking the back of the belt
with chalk arrows indicating the direction of movement.
B
Removing the power steering oil pump and the A/C
compressor
1. Remove the power steering oil pump and the A/C compressor
from the bracket with the hoses intact.
2. Secure the removed power steering oil pump and the removed
A/C compressor with string, and put them somewhere where
they will not hinder the removal or fitting of the engine ASSY.
C
Removing the transfer ASSY and the transmission
ASSY
1. In order to prepare the special mechanical engine hanger
(MZ203830, MZ203831 or MB991928), the radiator support
upper insulator mounting bolts should be tightened on the
chassis (2 places).
2. Remove the transfer ASSY and the transmission ASSY.
AholeB hole
L-shaped
hex-
agonal
Allen
wrench
Page 42 of 364

MPI – GENERAL13A-2
MPI system diagram
Engine ECU
H1. O
2 sensor
H2. Air flow sensor
H3. Intake air temp.
sensor
H4. Throttle position
sensor
H5. Intake Cam position
sensor
H6. Exhaust Cam
position sensor
H7. Crank angle
sensor
H8. Atmospheric
pressure sensor
H9. Water temp.
sensor
H10. Knock sensor
H11. Manifold absolute
pressure (MAP)
sensor
H12. Air temp. sensor• Power supply
• Ignition switch IG
• Ignition switch ST
• Vehicle speed
sensor
• A/C switch
• A/C load signal
• Power steering
fluid pressure switch
• Alternator FR signal
• Inter-cooler water spray
switch (auto)
•Inter-cooler water spray
switch (manual)I1. Injector
I2. ISC servo (Stepper
motor)
I3. Fuel pressure
control solenoid valve
I4. No. 1 Waste gate
solenoid valve
I5. No. 2 Waste gate
solenoid valve
I6. Purge control
solenoid valve
I7. Secondary air
control solenoid valve
I8. Oil feeder control
valve• Engine control relay
• Fuel pump relay 2,3
(ON/OFF)
• Fuel pump relay (HI/LO
switch)
• A/C relay
• Ignition coil
• Fan controller
• Condenser fan relay (HI)
• Condenser fan relay
(LO)
• Engine warning light
• Diagnosis output
terminal
• Alternator G terminal
• Inter-cooler water spray
relay
•Inter-cooler water spray
lamp
• O
2sensor heater
ÈÈ
I 6. Purge control
solenoid valve
I 7. Secondary
air control
solenoid valveCheck
valve
Secondary air
valve
To fuel
tank
H 6. Exhaust cam
position sensor
H 8. Atmospheric
pressure sensor
H 2. Air flow sensor
Intake
Waste gate actuator
I 4. No.1 waste gate
solenoid valve H 3. Intake air
temperature
sensor
I 5. No.2 waste gate
solenoid valve
H 1. O
2sensor
H 5. Intake cam
position sensorCatalyst
H 7. Crank angle sensor
H 10. Knock sensor
H 9. Water temperature sensor
I 1. Injector From fuel
pump
Fuel pressure
regulatorI 8. Oil feeder control
valve I 3. Fuel pressure
control solenoid
valve
Vacuum
tank
I 2. ISC servoH 11. MAP sensor
H 12. Air temperature sensor
H 4. Throttle
position
sensor
From fuel tank
Canister
By-pass valve
Page 112 of 364

54G6 – TIGHTENING TORQUES
Tightening Torques
Par tTightening Torque Nm
Alternator, ignition system
Oil level gauge guide bolt13 ± 1
Water pump pulley bolt8.8 ± 1.0
Auto tension bolt (washer)44 ± 10
Auto tension bolt (flange)24 ± 4
Alternator bracket bolt (flange)24 ± 4
Alternator bracket bolt (washer M8 x 22)22 ± 4
Alternator bracket bolt (washer M8 x 32)20 ± 2
Alternator nut44 ± 10
Crankshaft pulley bolt25 ± 4
Centre cover holt3.0 ± 0.5
Ignition coil bolt10 ± 2
Spark plug25 ± 5
Timing belt
Timing belt cover bolt (flange)11 ± 1
Timing belt cover bolt (washer)9.0 ± 1.0
Power steering pump bracket bolt49 ± 9
Connector bracket bolt11 ± 1
Locker cover bolt3.5 ± 0.5
Plug cap32 ± 2
Tensioner pulley bolt48 ± 5
Tensioner arm bolt21 ± 4
Auto tensioner bolt23 ± 3
Idler pulley bolt35 ± 6
Crank angle sensor bolt8.8 ± 1.0
Oil pump sprocket nut54 ± 5
Crankshaft holt167
Tensioner B bolt19 ± 3
Counterbalance shaft sprocket bolt45 ± 3
Engine support bracket bolt49 ± 5
V.V.T. sprocket bolt65 ± 5
Camshaft sprocket bolt88 ± 10
Fuel system
Throttle body bolt19 ± 3
Cover bolt12 ± 1
Fuel pressure regulator bolt8.8 ± 2.0
Delivery pipe and injector bolt11 ± 1
Vacuum hose and pipe bolt11 ± 1
Solenoid valve assembly bolt9.0 ± 1.0
Vacuum tank bracket bolt9.0 ± 1.0
Secondary air system / Intake manifold
Exhaust manifold heat protector bolt20 ± 3
Air pipe assembly
Page 117 of 364
104G6 – TIMING BELT
Timing Belt
Removal and Installation
Note :
NEVER disassemble the V.V.T. sprocket.
Removal Sequence
1. Timing belt front upper cover
2. Timing belt front lower cover
3. Power steering pump bracket4. Breather hose
5. PCV hose
6. PCV valve
7. PCV valve gasket
8. Oil filler cap
Page 155 of 364

LAYOUT DIAGRAMS - ENGINE COMPARTMENT1-5
A-31 (2-black) Front ABS sensor (RH)
A-32 (4-black) Dummy connector
A-33 (4-black) Headlamp ASSY (LH) (except discharge
headlamps)
(8-black) Headlamp ASSY (LH) (discharge
headlamps)
A-34 (2) Intercooler water spray motor
A-35 (2-black) Fog lamp (LH)
A-36 (2-black) Condenser fan motor
A-37 (2-grey) Condenser fan motor
A-38 (1-black) Power steering fluid pressure switch
A-39 (1-black) A/C compressor (vehicle with manual
A/C, fully automatic A/C) or dummy
connector (vehicle with heater)A-40 (2-black) Fog lamp (RH)
A-41 (4-black) Headlamp ASSY (RH) (except discharge
headlamps)
(8-black) Headlamp ASSY (RH) (discharge
headlamps)
A-42 (2-brown) Dual pressure switch (vehicle with
manual A/C, fully automatic A/C) or
dummy connector (vehicle with heater)
A-52 (2-yellow) Front impact sensor (RH) (vehicle not
fitted with front passenger airbag)
A-53 (2-yellow) Front impact sensor (LH) (vehicle not
fitted with front passenger airbag)
Front harness (LH)