EC0GB−01
EC3069
Gasket
Check Valve (V acuum Valve)
EC−6
−
EMISSION CONTROL EVAPORATIVE EMISSION (EVAP) CONTROL SYSTEM
1996 LAND CRUISER (RM451U)
INSPECTION
1. VISUALLY INSPECT LINES AND CONNECTIONS
Look for loose connections, sharp bends or damage.
2. VISUALLY INSPECT FUEL TANK
Look for deformation, cracks or fuel leakage.
3. VISUALLY INSPECT FUEL TANK CAP
Check if the cap and/or gasket are deformed or damaged.
If necessary, repair or replace the cap.
4. INSPECT TVV OPERATION WITH COLD ENGINE
(a) The engine coolant temperature should be below 45 °C
(113 °F).
(b) Disconnect the EVAP hose from the union pipe.
(c) Start the engine.
(d) Gradually increase the engine speed from idle to 3,000 rpm and check that air suction is not felt at the union pipe.
5. INSPECT OPERATION OF VCV WITH HOT ENGINE
(a) Warm up the engine.
(b) With the engine idling, check that air suction is not felt at union pipe.
(c) Gradually increase the engine speed to 3,000 rpm and check that there is air suction at the union pipe.
(d) Reconnect the EVAP hose to the union pipe.
If no problem is found with this inspection, system is normal;
otherwise inspect each part.
6. REMOVE CHARCOAL CANISTER WITH BRACKET
7. REMOVE CHARCOAL CANISTER FROM BRACKET
8. REMOVE CAP FROM CHARCOAL CANISTER
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EM−2
−
ENGINE MECHANICAL CO/HC
505
Author: Date:
1996 LAND CRUISER (RM451U)
6. TROUBLESHOOTING
If the CO/HC concentration does not comply with regulations,
troubleshoot in the order given below.
See the table below for possible causes, and then inspect and
correct the applicable causes if necessary.
COHCProblemsCauses
NormalHighRough idle
3. Faulty ignitions:
Incorrect timing
Fouled, shorted or improperly gapped plugs
Open or crossed high −tension cords
Cracked distributor cap
4. Incorrect valve clearance
5. Leaky EGR valve
6. Leaky intake and exhaust valves
7. Leaky cylinders
LowHighRough idle
(Fluctuating HC reading)
1. Vacuum leaks:
PCV hose
EGR valve
Intake manifold
Air intake chamber
Throttle body
IAC valve
Brake booster line
2. Lean mixture causing misfire
HighHighRough idle
(Black smoke from exhaust)
1. Restricted air filter
2. Faulty SFI systems:
Faulty pressure regulator
Clogged fuel return line
Defective ECT sensor
Faulty ECM
Faulty injector
Faulty throttle position sensor
Faulty MAF meter
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EM1E3−01
EM−28
−
ENGINE MECHANICAL CYLINDER HEAD
1996 LAND CRUISER (RM451U)
REMOVAL
1. DRAIN ENGINE COOLANT
2. REMOVE BATTERY AND BATTERY TRAY
(a) Disconnect the battery cables.
(b) Remove the nuts, hold −down clamp and battery.
(c) Remove the bolt and disconnect the ground strap.
(d) Remove the 5 bolts and battery tray.
3. REMOVE AIR CLEANER HOSE AND CAP
4. DISCONNECT CRUISE CONTROL ACTUATOR CABLE FROM THROTTLE BODY
5. DISCONNECT ACCELERATOR CABLE FROM
THROTTLE BODY
6. DISCONNECT THROTTLE CABLE FROM THROTTLE BODY
7. DISCONNECT ENGINE GROUND STRAPS
(a) Disconnect the ground strap from the No. 1 engine hang-
er.
(b) Disconnect the ground strap from the air intake chamber.
8. DISCONNECT CONNECTOR ON INTAKE MANIFOLD FROM LH FENDER APRON
9. DISCONNECT BRAKE BOOSTER VACUUM HOSE
10. DISCONNECT EVAP HOSE
11. DISCONNECT FUEL RETURN HOSE
12. DISCONNECT HEATER HOSES
13. DISCONNECT ENGINE WIRE AND HEATER VALVE FROM COWL PANEL
(a) Remove the 2 bolts and disconnect the engine wire and
ground strap.
(b) Remove the 2 bolts and disconnect the heater valve.
14. REMOVE NO. 2 AND NO. 3 CYLINDER HEAD COVERS
Remove the 4 bolts and head covers.
15. REMOVE DISTRIBUTOR (See page IG−10 )
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MA04U−01
P04771
−
MAINTENANCE ENGINE
MA−5
45
Author: Date:
1996 LAND CRUISER (RM451U)
ENGINE
INSPECTION
HINT:
Inspect these items when the engine is cold.
1. INSPECT DRIVE BELT (See page CH−2)
2. INSPECT AIR FILTER
(a) Visually check that the air cleaner element is not exces- sively dirty, damaged or oily.
If necessary, replace the air cleaner element.
(b) Clean the element with compressed air. First blow from the inside thoroughly, then blow off the
outside of the element.
3. REPLACE AIR FILTER
Replace the air cleaner element with a new one.
4. REPLACE SPARK PLUGS (See page IG−1 )
5. REPLACE ENGINE OIL AND OIL FILTER (See page LU−2)
6. REPLACE ENGINE COOLANT (See page CO−2)
7. INSPECT CHARCOAL CANISTER (See page EC−6 )
8. REPLACE GASKET IN FUEL TANK CAP (See page
EC−6)
9. INSPECT FUEL LINES AND CONNECTIONS (See page EC−6)
10. INSPECT EXHAUST PIPES AND MOUNTINGS
Visually inspect the p ipes, hangers and connections for severe
corrosion, leaks or damage.
11. ADJUST VALVE CLEARANCE (See page EM−4)
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SF1ED−04
−
SFI SFI SYSTEM
SF−1
629
Author: Date:
1996 LAND CRUISER (RM451U)
SFI SYSTEM
PRECAUTION
1. BEFORE WORKING ON FUEL SYSTEM, DISCON-
NECT NEGATIVE (−) TERMINAL CABLE FROM THE
BATTERY.
HINT:
Any diagnostic trouble code retained by the computer will be
erased when the negative ( −) terminal cable is disconnected.
Therefore, if necessary, read the diagnosis before disconnect-
ing the negative ( −) terminal cable from the battery.
2. DO NOT SMOKE OR WORK NEAR AN OPEN FLAME WHEN WORKING ON FUEL SYSTEM.
3. KEEP GASOLINE AWAY FROM RUBBER OR
LEA TH-
ER PARTS
4. MAINTENANCE PRECAUTIONS
(a) In event of engine misfire, these precautions should be taken.
(1) Check proper connection of battery terminals, etc.
(2) Handle high −tension cords carefully.
(3) After repair work, check that the ignition coil termi- nals and all other ignition system lines are recon-
nected securely.
(4) When cleaning the engine compartment, be espe-
cially careful to protect the electrical system from
water.
(b) Precautions when handling the oxygen sensor. (1) Do not allow the oxygen sensor to drop or hit
against an object.
(2) Do not allow the sensor to come in contact with wa- ter.
5. IF VEHICLE IS EQUIPPED WITH MOBILE RA-
DIO
SYSTEM (HAM, CB, ETC.)
If the vehicle is equipped with a mobile communication system,
refer to the precaution in the IN section.
6. AIR INDUCTION SYSTEM
(a) Separation of the engine oil dipstick, oil filler cap, PCV hose, etc. may cause the engine to run out of tune.
(b) Disconnection, looseness or cracks in the parts of the air
induction system between the throttle body and cylinder
head will allow air suction and cause the engine to run out
of tune.
7. ELECTRONIC CONTROL SYSTEM
(a) Before removing SFI wiring connectors, terminals, etc., first disconnect the power by either turning the ignition
switch OFF or disconnecting the negative ( −) terminal
cable from the battery.
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SF1EH−02
−
SFI FUEL PUMP
SF−11
1996 LAND CRUISER (RM451U)
REMOVAL
CAUTION:
Do not smoke or work near an open flame when working on
the fuel pump.
1. REMOVE SECOND SEATS
Torque: 39 N·m (400 kgf·cm, 29 ft·lbf)
2. REMOVE SCUFF PLATE
3. REMOVE SIDE GARNISH
4. REMOVE STEP PLATE
5. DISCONNECT FLOOR MATS
6. REMOVE FLOOR SERVICE HOLE COVER
Remove the 3 screws and service hole cover.
7. DISCONNECT FUEL PIPE AND HOSE FROM FUEL
PUMP BRACKET
CAUTION:
Remove the fuel filter cap to prevent the fuel from flowing
out.
(a) Disconnect the fuel pump and sender gauge connector.
HINT:
At the time of installation, plaese refer to the following items.
Check for fuel leakage.
(b) Remove the union bolt and gaskets, and disconnect the outlet pipe from the pump bracket.
Torque: 29 N·m (300 kgf·cm, 22 ft·lbf)
(c) Disconnect the return hose from the pump bracket.
8. REMOVE FUEL PUMP BRACKET ASSEMBLY FROM
FUEL TANK
(a) Remove the 8 bolts.
Torque: 3.9 N·m (40 kgf·cm, 35 in.·lbf)
(b) Pull out the pump bracket assembly.
NOTICE:
Do not damage the fuel pump filter.
Be careful that the arm of the sender gauge should
not bent.
(c) Remove the gasket from the pump bracket.
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SS1EP−01
−
SERVICE SPECIFICATIONS ENGINE MECHANICAL
SS−7
1996 LAND CRUISER (RM451U)
TORQUE SPECIFICATION
Part tightenedN·mkgf·cmft·lbf
Distributor x Cylinder head1818013
No. 1 engine hanger x Cylinder head4142030
No. 2 engine hanger x Cylinder head4142030
Air intake chamber x Intake manifold2121015
Intake manifold x Cylinder head2121015
Heater inlet pipe x Intake manifold2121015
EGR pipe x Cylinder head2121015
EGR pipe x EGR valve Union nut7880058
Water outlet x Cylinder head2121015
Generator bracket x Cylinder head4344032
Cylinder head x Cylinder block 1st
2nd 3rd39
Turn 90°
Turn 90°400
Turn 90°
Turn 90°29
Turn 90°
Turn 90°
Cylinder head x Timing chain cover2121015
Camshaft bearing cap x Cylinder head1616012
Camshaft timing gear x Camshaft7475054
Chain tensioner x Cylinder head2121015
Water bypass outlet x Cylinder head2121015
Heater pipe x Timing chain cover2121015
Heater pipe x Cylinder head2020014
Exhaust manifold x Cylinder head3940029
Heat insulator x Exhaust manifold1919514
Front exhaust pipe x Exhaust manifold6363046
No. 1 support bracket x Transmission2424017
No. 1 support bracket clamp bolt19.519514
Front exhaust pipe x Rear TWC4647034
No. 2 water bypass pipe x Cylinder head2020014
No. 2 water bypass pipe x No. 1 engine hanger2020014
Fuel inlet hose x Fuel filter2930022
Intake manifold stay x Air intake chamber3636026
Intake manifold stay x Cylinder block3636026
Oil dipstick guide x Intake manifold2020014
Oil dipstick guide x No. 1 oil pan2020014
PS reservoir tank x Air intake chamber2020014
Oil jet x Cylinder block2020014
Vibration damper x Cylinder block2020014
Chain tensioner slipper x Cylinder block6970051
Timing chain cover x Cylinder block2121015
Drive belt idler pulley x Timing chain cover4344032
Crankshaft pulley x Crankshaft4124,200304
Transmission housing x No. 1 oil pan7273053
Oil level sensor x No. 1 oil pan5.45548 in.·lbf
Water pump x Cylinder block2121015
Radiator pipe x No. 1 oil pan2121015
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SS1ET−01
SS−12
−
SERVICE SPECIFICATIONS SFI
1996 LAND CRUISER (RM451U)
TORQUE SPECIFICATION
Part tightenedN·mkgf·cmft·lbf
Fuel line for union bolt
for flare nut29
30300
31022
22
Second seat x Body3940029
Fuel pump bracket assembly x Fuel tank3.94035 in.·lbf
Fuel inlet hose x Fuel filter2930022
Fuel inlet pipe x Fuel filter2930022
Fuel filter x Intake manifold2121015
Fuel pressure regulator x Delivery pipe2525018
Delivery pipe x Intake manifold2121015
Fuel inlet pipe x Delivery pipe Union bolt
Bolt29
20300
20022
14
Fuel inlet pipe x Fuel filter2930022
Fuel return pipe x Intake manifold2020014
Air intake chamber x Intake manifold2121015
Intake manifold stay x Air intake chamber3636026
Intake manifold stay x Cylinder block3636026
PS reservoir tank x Air intake chamber1818513
Heater inlet pipe x Air intake chamber2020014
Drain plug x Fuel tank6.56557 in.·lbf
Fuel tank breather tube x Fuel tank1.51513 in.·lbf
Fuel tank filler pipe x Fuel tank3.53531 in.·lbf
Fuel tank band x Body3940029
MAF meter x Bracket6.97061 in.·lbf
MAF meter x Air cleaner cap6.97061 in.·lbf
Throttle body x Air intake chamber2121015
Fuel pump resistor x Body1818513
ECT sensor x Cylinder head24.525017.5
EGR gas temperature sensor x Air intake chamber2020014
Knock sensor x Cylinder block4445033
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