ON-VEHICLE SERVICE
ENGINE COOLING14-23
5. Apply the designated sealant to the screw area of
the cylinder block drain plug, and then tighten to
the standard torque.
Specified sealant: 3M Nut Locking Part
No.4171 or equivalent
Tightening torque:
40 ± 5 N⋅m <4G1>
44 ± 5 N⋅m <4G6>
6. Securely tighten the drain plug of the radiator.
7. Reinstall the radiator condenser tank.
CAUTION
Do not use alcohol or methanol anti-freeze or any
engine coolants mixed with alcohol or methanol
anti-freeze. The use of an improper anti-freeze
can cause corrosion of the aluminium
components.
8. By referring to the section on coolant, select an
appropriate concentration for safe operating
temperature within the range of 30 to 60%. Use
special tool LLC changer (MB991871) to refill the
coolant. A convenient mixture is a 50% water and
50% antifreeze solution (freezing point: −31°C).
Recommended antifreeze: DIAQUEEN SUPER
LONG LIFE COOLANT or equivalent
Quantity:
5.0 L <4G1>
7.0 L <4G6>
NOTE: For how to use special tool MB991871,
refer to its manufacturer’s instructions.9. Reinstall the radiator cap.
10.Start the engine and let it warm up until the
thermostat opens.
11.After repeatedly revving the engine up to 3,000
r/min several times, then stop the engine.
12.Remove the radiator cap after the engine has
become cold, and pour in coolant up to the brim.
Reinstall the cap.
CAUTION
Do not overfill the radiator condenser tank.
13.Add coolant to the radiator condenser tank
between the "F" and "L" mark if necessary.
CONCENTRATION MEASUREMENTM1141001100352
Measure the temperature and specific gravity of the
engine coolant to check the antifreeze concentration.
Standard value: 30 − 60% (allowable
concentration range)
Recommended antifreeze: DIAQUEEN SUPER
LONG LIFE COOLANT or equivalent
CAUTION
If the concentration of the anti-freeze is below
30%, the anti-corrosion property will be
adversely affected. In addition, if the
concentration is above 60%, both the
anti-freezing and engine cooling properties will
decrease, affecting the engine adversely. For
these reasons, be sure to maintain the
concentration level within the specified range.
COOLING FAN MOTOR DRIVE CONTROL
UNIT CHECK
M1141006100216
1. Remove the cooling fan motor drive control unit
connector.
2. Turn the ignition switch to the "ON" position, and
measure the voltage between terminal 1 and 3 at
the harness side connector.
Standard value: system voltage
AC200625
Cylinder block
drain plug
AC
AC303612AB
MB991871
AIR HOSE
AC103195
Y1716AU
1 23
AC
Cooling fan motor
drive control unit
STARTING SYSTEM
ENGINE ELECTRICAL16-23
STARTER MOTOR ASSEMBLY INSPECTIONM1162001100205
PINION GAP ADJUSTMENT
1. Disconnect the field coil wire from the M-terminal
of the magnetic switch.
2. Connect a 12-volt battery between the S-terminal
and M-terminal.
CAUTION
This test must be performed quickly (in less than
10 seconds) to prevent the coil from burning.
3. Set the switch to "ON", and the pinion will move
out.
4. Check the pinion-to-stopper clearance (pinion
gap) with a feeler gauge.
Standard value: 0.5 − 2.0 mm5. If the pinion gap is out of specification, adjust by
adding or removing gasket(s) between the
magnetic switch and front bracket.
MAGNETIC SWITCH PULL-IN TEST
1. Disconnect the field coil wire from the M-terminal
of the magnetic switch.
CAUTION
This test must be performed quickly (in less than
10 seconds) to prevent the coil from burning.
2. Connect a 12-volt battery between the S-terminal
and M-terminal.
3. If the pinion moves out, the pull-in coil is good. If it
doesn't, replace the magnetic switch.
AK300648AB
<4G1>
Switch
S
M
Wire
Battery Starter
motor B
AKX01238
<4G6>
B MS
batterySwitch
Starter
motorWire
AG
AKX00198
Stopper
Pinion gap Pinion
AC
AKX00199
AK300649AB
<4G1>
S
M
Wire
Battery Starter
motor B
AKX01242
<4G6>
S
B M
Battery
Starter
motorWire
AF
STARTING SYSTEM
ENGINE ELECTRICAL16-24
MAGNETIC SWITCH HOLD-IN TEST
1. Disconnect the field coil wire from the M-terminal
of the magnetic switch.
CAUTION
This test must be performed quickly (in less than
10 seconds) to prevent the coil from burning.
2. Connect a 12-volt battery between the S-terminal
and body.
3. Manually pull out the pinion as far as the pinion
stopper position.
4. If the pinion remains out, everything is in order. If
the pinion moves in, the hold-in circuit is open.
Replace the magnetic switch.
FREE RUNNING TEST
1. Place the starter motor in a vise equipped with
soft jaws and connect a fully-charged 12-volt
battery to the starter motor as follows:
2. Connect a test ammeter (100-ampere scale) and
carbon pile rheostat in series between the battery
(+) terminal and starter motor terminal.
3. Connect a voltmeter (15-volt scale) across the
starter motor.
4. Rotate the rheostat to full-resistance position.
5. Connect the battery cable from the battery (-)
terminal to the starter motor body.
6. Adjust the rheostat until the battery voltage shown
on the voltmeter is 11 V.
7. Confirm that the maximum amperage is within the
specifications and that the starter motor turns
smoothly and freely.
Current:
<4G1> maximum 95 Amps
<4G6> maximum 90 Amps
AK300650AB
<4G1>
S
BMWire
Battery Starter
motor
AKX01244
<4G6>
S
B M
Battery
Starter
motorWire
AF
AK300651AB
<4G1>
S
A M
V BCarbon-pile rheostat
Battery
VoltmeterAmmeter
Starter
motor
AKX01246
<4G6>
S
M
BAmmeter
Carbon-pile
rheostat
Battery
Starter
motor
Voltmeter
AF
A
V
STARTING SYSTEM
ENGINE ELECTRICAL16-26
DISASSEMBLY AND REASSEMBLYM1162001200202
AK201881
14
1211
20
1
15161718191310 2
4
3
5
7
6
8
9
AG
Disassembly steps
1. Screw
<>2. Magnetic switch
3. Screw
4. Bolt
5. Rear bracket
6. Brush holder
7. Rear bearing
8. Armature
9. Yoke assembly
10. Packing A11. Packing B
12. Plate
13. Planetary gear
14. Lever
<> >>A<<15. Snap ring
<> >>A<<16. Stop ring
17. Overrunning clutch
18. Internal gear
19. Planetary gear shaft
20. Front bracketDisassembly steps (Continued)
ON-VEHICLE SERVICE
POWER STEERING37-11
ON-VEHICLE SERVICE
STEERING WHEEL FREE PLAY CHECKM1372001000311
1. With the engine running (hydraulic operation), set
the front wheels straight ahead.
2. Measure the play on the steering wheel
circumference before the wheels start to move
when slightly moving the steering wheel in both
directions.
Limit: 30 mm
3. When the play exceeds the limit, check for the
play on the steering shaft and steering linkage
connection. Correct or replace.
4. If the free play still exceeds the limit value, set the
steering wheel straight ahead with the engine
stopped. Load 5 N towards the steering wheel
circumference and check the play.
Standard value (steering wheel play with the
engine stopped): 10 mm or less
5. If the play exceeds the standard value, remove
the steering gear (Refer to P.37-24) and check
the total pinion torque (Refer to P.37-27).
STEERING ANGLE CHECKM1372001100374
1. Place the front wheel on a turning radius gauge
and measure the steering angle.
Standard value:
2. If the steering angle is not within the standard
value, adjust the toe-in as follows.
Standard value:
at the centre of tyre tread: 1 ± 2 mm
Toe angle (per wheel): 0°03' ± 06'
3. Loosen the lock nut, and unclip the bellows.
4. Adjust the toe-in by 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.
5. Tighten the lock nut to the specified torque, and
tighten the bellows by the clip.
Tightening torque: 40 ± 5 N⋅m
6. Recheck the steering angle.
ACX01122
AB
AC000756AB
Inner
wheelsComfort 39°30' ± 1°30'
Sport (L.H.
drive vehicles)33°40' +1°00'/-2°00'
Sport (R.H.
drive vehicles)37°00' +1°00'/-2°00'
Outer
wheels
(reference)Comfort 32°30'
Sport (L.H.
drive vehicles)28°46'
Sport (R.H.
drive vehicles)30°00'
AC006074AD
Lock nut
Clip
ON-VEHICLE SERVICE
POWER STEERING37-12
TIE ROD END BALL JOINT TURNING
TORQUE CHECK
M1372001500297
CAUTION
•Do not remove the tie rod end nut from the
ball joint. Loosen it and use special tool to
avoid possible damage to the ball joint
threads.
•Hang special tool with cord to prevent it from
falling.
1. Install special tool ball joint remover (MB991897)
as shown in the figure.
2. Turn the bolt and knob as necessary to make the
jaws of special tool parallel, tighten the bolt by
hand and confirm that the jaws are still parallel.
NOTE: When adjusting the jaws in parallel, make
sure the knob is in the position shown in the
figure.
3. Tighten the bolt with a wrench to disconnect the
tie rod end.4. Move the ball joint stud several times and install
the nut on the stud. Using special tool preload
socket (MB990326), measure the ball joint turning
torque.
Standard value: 0.5 − 2.5 N⋅m
5. If the turning torque exceeds the standard value,
replace the tie rod end.
6. If the turning torque is under the standard value,
check the ball joint for axial play or ratcheting. If
no axial play or ratcheting, the ball joint can be
re-used.
CAUTION
Always use a new ball joint nut as it is a
self-locking nut.
7. Install the tie rod end to the knuckle, then tighten a
new self-locking nut to the specified torque.
Tightening torque: 25 ± 5 N⋅m
STATIONARY STEERING EFFORT CHECKM1372001700332
1. With the vehicle stopped on a flat and paved
surface, turn the steering wheel to the straight
ahead position.
2. Start the engine and set the engine idle speed.
Standard value: 1000 ± 100 r/min
3. Attach a spring balance to the outer
circumference of the steering wheel and measure
the steering force required to turn the steering
wheel from the straight ahead position to the left
and right (within a range of 1.5 turns). Also check
to be sure that there is no significant change in
the required steering effort.
Standard value:
Steering effort: 29 N or less
Fluctuation allowance: 5.9 N or less
4. If the measured value exceeds the standard
value, check and adjust the related parts.
AC208247AD
Cord
BoltMB991897
Nut
Ball joint
AC106821
Knob ParallelBolt
Good
Bad
AB
ACX01129
AB
MB990326
ACX01122
AB
ON-VEHICLE SERVICE
POWER STEERING37-13
STEERING WHEEL RETURN TO CENTRE
CHECK
M1372001800317
Conduct a road test:
1. Make both gradual and sudden turns and check
the steering wheel return.
2. At a vehicle speed of approximately 35 km/h, turn
the steering wheel 90°, hold a few seconds, then
release. If the steering wheel then returns 70° or
more, the return can be judged satisfactory.
NOTE: There will be a momentary feeling or
"heaviness" when the wheel is turned quickly, but
this is not abnormal (Oil pump discharge amount
is especially apt to be insufficient during idling).
DRIVE BELT TENSION CHECKM1372001900392
For vehicles with 1300 and 1600 engine, refer to
GROUP 11A, On-vehicle Service − Drive Belt
Tension Check P.11A-7.
For vehicles with 2000 engine, refer to GROUP 11C,
On-vehicle Service − Drive Belt Tension Check
P.11C-7.
FLUID LEVEL CHECKM1372002000284
1. Park the vehicle on a flat, level surface.
2. Start the engine, and then turn the steering wheel
several times to raise the temperature of the fluid
to approximately 50 − 60°C.
3. With the engine running, turn the wheel all the
way to the left and right several times.4. Check the fluid in the oil reservoir for foaming or
milkiness. Check the difference of the fluid level
when the engine is stopped, and while it is
running. If the change of the fluid level is 5 mm or
more, air bleeding should be done.
FLUID REPLACEMENTM1372002100333
1. Raise and support the front wheels.
2. Disconnect the return hose connection, and then
connect a vinyl hose to the return hose, and drain
the fluid into a container.
3. Disconnect the ignition coil connectors (Refer to
GROUP 16, Ignition Coil P.16-38or P.16-39).
4. While operating the starter motor intermittently,
turn the steering wheel all the way to the left and
right several times to drain all of the fluid.
5. Connect the return hose securely, and then
secure with the clip.
6. Fill the oil reservoir with specified fluid up to
between "MAX" and "MIN" marks, and then bleed
the air.
Specified fluid: ATF DEXRON III or DEXRON
II
POWER STEERING SYSTEM AIR
BLEEDING
M1372002200330
Perform air bleeding procedure as necessary after
replacing the steering gear or the steering fluid lines.
1. Raise and support the front wheels.
2. Disconnect the ignition coil connectors (Refer to
GROUP 16, Ignition Coil P.16-38 or P.16-39).
ACX01130
AB
70˚70˚
ACX01131While engine running While engine stoppedAC
Fluid level change: Within 5 mm
AC100369AB
Return hoseReturn hose
Vinyl hose