Mitsubishi MOTORS Space Runner 1998, Руководство по ремонту

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ENGINE <4G6> -
On-vehicle Service
11A-10
IGNITION TIMING CHECK
1. Before inspection, set the vehicle to the pre-inspection
condition.
For vehicles with manual transmission, drive the vehicle
for 15 minutes or more to warm the engine, and then
carry out the checking while the transmission oil
temperature is more than 50 ° C.
NOTE
The idle speed in vehicles with manual transmission varies
as shown in the illustration in accordance with the
transmission oil temperature.
2. Turn off the ignition switch and then connect the MUT-
II
to the diagnosis connector.
3. Set the timing light to the power supply line (terminal
No.1) of the ignition coil No.1.
NOTE
The power supply line is looped and also longer than
the other ones.
4. Start the engine and let it run at idle.
5. Use the MUT-
II
to measure engine idle speed and check
that it is within the standard value.
Standard value:
Items Idle speed r/min
M/T 600 ± 100 (700 ± 100)*
A/T 650 ± 100 (700 ± 100)*
NOTE
*: Indicates the values when more than 4 minutes have
passed since the idling condition was started.
6. Select No.17 of the MUT-
II
Actuator test.
NOTE
At this time, the engine speed will become approximately
700 r/min.
7. Check that basic ignition timing is within the standard
value.
Standard value: 5
_
BTDC
±
3
_
8. If the basic ignition timing is outside the standard value,
inspect the GDI system while referring to GROUP 13A -
Troubleshooting.
-10 20 50
Transmission oil temperature _ C
600
700
800
900
Idle speed r/min
No.1 ignition coil