1996 TOYOTA LAND CRUISER Workshop Manual

P22687
P08512
IG−2
−
IGNITION IGNITION SYSTEM
736
Author: Date:
1996 LAND CRUISER (RM451U)
2. REMOVE NO.2 PCV HOSE
3. REMOVE AIR CLEANER HOSE
4. DISCONNECT THROTTLE CABLE
5. REMOVE NO.2 AND NO.3 CYLINDER HEAD COVERS
Remove the 4 bolts and head covers.
6. DISCONNECT HIGH −TENSION CORDS FROM SPARK
PLUGS
(a) Remove the 2 mounting bolts of the No.1 and No.2 cord clamps.
(b) Disconnect the high −tension cords at the rubber boot.
Do not pull on the cords.
NOTICE:
Pulling on or bending the cords may damage the conductor
inside.
7. DISCONNECT HIGH−TENSION CORDS FROM DIS- TRIBUTOR CAP AND IGNITION COIL
(a) Using a screwdriver, lift up the lock claw and disconnect
the holder from the distributor cap (ignition coil).
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−
IGNITION IGNITION SYSTEM
IG−3
737
Author: Date:
1996 LAND CRUISER (RM451U)
(b) Disconnect the high−tension cord at the grommet.
Do not pull on the cord.
NOTICE:
Pulling on or bending the cords may damage the conductor
inside.Do not wipe any of the oil from the grommet after the
high −tension cord is disconnected.
8. INSPECT HIGH−TENSION CORD RESISTANCE
Using an ohmmeter, measure the resistance. Maximum resistance: 25 k Ω per cord
If the resistance is greater than maximum, check the terminals.
If necessary, replace the high −tension cord.
9. RECONNECT HIGH− TENSION CORDS TO DISTRIBU-
TOR CAP AND IGNITION COIL
(a) Assemble the holder and grommet.
HINT:
Connect the high− tension cords to the distributor cap as shown
in the illustration.
(b) Align the spline of the distributor (ignition coil) with the spline of the holder, and push in the cord.
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IG−4
−
IGNITION IGNITION SYSTEM
738
Author: Date:
1996 LAND CRUISER (RM451U)
NOTICE:
Check that the holder is correctly installed to the grommet
and distributor cap as shown in the illustration.
(c) Check that the lock claw of the holder is engaged by lightly
pulling the holder.
10. RECONNECT HIGH −TENSION CORDS TO SPARK
PLUGS
(a) Secure the high −tension cords with the cord clamps as
shown in the illustration.
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IG0152
P03783
−
IGNITION IGNITION SYSTEM
IG−5
739
Author: Date:
1996 LAND CRUISER (RM451U)
(b) Install the No.1 and No.2 cord clamps with the 2 bolts.
11. INSTALL NO.2 AND NO.3 CYLINDER HEAD COVERS
Install the head covers with the 4 bolts.
12. CONNECT THROTTLE CABLE
13. INSTALL AIR CLEANER HOSE
Install the air cleaner hose with the 2 clamp bolts.
14. INSTALL NO.2 PCV HOSE
15. DISCONNECT HIGH −TENSION CORDS FROM SPARK
PLUGS
16. REMOVE SPARK PLUGS
Using a 16 mm plug wrench, remove the spark plug.
17. CLEAN SPARK PLUGS
Using a spark plug cleaner or wire brush, clean the spark plug.
18. VISUALLY INSPECT SPARK PLUGS
Check the spark plug for electrode wear, threads damage and
insulator damage.
If abnormal, replace the plugs. Recommended spark plugs:
ND: K16R −U
NGK: BKR5EYA
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P03792
IG−6
−
IGNITION IGNITION SYSTEM
740
Author: Date:
1996 LAND CRUISER (RM451U)
19. ADJUST ELECTRODE GAP
Carefully bend the outer electrode to obtain the correct elec-
trode gap.
Correct electrode gap: 0.8 mm (0.031 in.)
20. INSTALL SPARK PLUGS
Using a 16 mm plug wrench, install the spark plug. Torque: 20 N·m (200 kgf·cm, 14 ft·lbf)
21. RECONNECT HIGH −TENSION CORDS TO SPARK
PLUGS
NOTICE:
”Cold” and ”Hot” in the following sentences express the
temperature of the coils themselves. ”Cold” is from −10° C
(14 °F) to 50° C (122°F) and ”Hot” is from 50 °C (122° F) to
100 °C (212 °F).
22. DISCONNECT IGNITION COIL CONNECTOR
23. DISCONNECT HIGH−TENSION CORD
24. INSPECT PRIMARY COIL RESISTANCE
Using an ohmmeter, measure the resistance between the posi-
tive (+) and negative (−) terminals. Primary coil resistance:
Cold: 0.36 − 0.55 Ω
Hot: 0.45 − 0.65 Ω
If the resistance is not as specified, replace the ignition coil.
25. INSPECT SECONDARY COIL RESISTANCE
Using an ohmmeter, measure the resistance between the posi-
tive (+) and high −tension terminals.
Secondary coil resistance:
Cold: 9.0 − 15.4 kΩ
Hot: 11.4 − 18.1 kΩ
If the resistance is not as specified, replace the ignition coil.
26. RECONNECT HIGH−TENSION CORD
27. RECONNECT IGNITION COIL CONNECTOR
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IGNITION IGNITION SYSTEM
IG−7
741
Author: Date:
1996 LAND CRUISER (RM451U)
NOTICE:
”Cold” and ”Hot” in the following sentences express the
temperature of the coils themselves. ”Cold” is from −10° C
(14 °F) to 50° C (122°F) and ”Hot” is from 50 °C (122° F) to
100 °C (212 °F).
28. DISCONNECT DISTRIBUTOR CONNECTOR
29. REMOVE DISTRIBUTOR CAP WITHOUT DISCON- NECTING HIGH−TENSION CORDS
30. REMOVE ROTOR
31. INSPECT AIR GAPS
Using a thickness gauge, measure the gap between the signal
rotor and the pickup coil projection. Air gap: 0.2 − 0.4 mm (0.008 − 0.016 in.)
If the gap is not as specified, replace the distributor housing.
32. INSPECT SIGNAL GENERATOR (PICKUP COIL) RE- SISTANCE
Using an ohmmeter, check that the resistance of the pickup coil. Pickup coil resistance:
Cold G1 and G
G2 and G
NE and G185 − 275 Ω
185 − 275 Ω
185 − 275 Ω
Hot G1 and G
G2 and G
NE and G240 − 325 Ω
240 − 325 Ω
240 − 325 Ω
If the resistance is not as specified, replace the distributor hous-
ing.
33. REINSTALL ROTOR
34. REINSTALL DISTRIBUTOR CAP
35. RECONNECT DISTRIBUTOR CONNECTOR
NOTICE:
”Cold” and ”Hot” in the following sentences express the
temperature of the sensor itself.
”Cold” is from −10° C (14°F) to 50° C (122°F) and ”Hot” is
from 50° C (122°F) to 100° C (212°F).
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P22961
IG−8
−
IGNITION IGNITION SYSTEM
742
Author: Date:
1996 LAND CRUISER (RM451U)
36. DISCONNECT CRANKSHAFT POSITION SENSOR
CONNECTOR AND BRACKET
37. INSPECT CRANKSHAFT POSITION SENSOR RESIS- TANCE
Using an ohmmeter, measure the resistance between the ter-
minals. Resistance (NE  − NE ):
Cold: 1,630 − 2,740 Ω
Hot: 2,065 − 3,225 Ω
If the resistance is not as specified, replace the crankshaft posi-
tion sensor.
38. RECONNECT CRANKSHAFT POSITION SENSOR
BRACKET AND CONNECTOR
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IG0IC−01
−
IGNITION DISTRIBUTOR
IG−9
743
Author: Date:
1996 LAND CRUISER (RM451U)
DISTRIBUTOR
COMPONENTS
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