check engine NISSAN TERRANO 2004 Service Owner's Manual

Engine Coolant Mixture Ratio
The engine cooling system is filled at the factory with a high-quality,
year-round and extended life engine coolant. The high quality
engine coolant contains the specific solutions effective for the anti-
corrosion and the anti-freeze function. Therefore, additional cooling
system additives are not necessary.
CAUTION:
IWhen adding or replacing coolant, be sure to use only
Genuine Nissan Anti-freeze Coolant (L2N) or equivalent.
Because L2N is premixed type coolant (Mixture ratio 50%).
The use of other types of engine coolant may damage your
cooling system.
I When checking the engine coolant mixture ratio by the coolant
hydrometer, use the chart below to correct your hydrometer
reading (specific gravity) according to coolant temperature.
Mixed coolant specific gravity
Unit: Specific gravity
Engine coolant mixture
ratio Coolant temperature ÉC (ÉF)
15 (59) 25 (77) 35 (95) 45 (113)
30% 1.046 - 1.050 1.042 - 1.046 1.038 - 1.042 1.033 - 1.038
50% 1.076 - 1.080 1.070 - 1.076 1.065 - 1.071 1.059 - 1.065
WARNING:
Never remove the radiator cap when the engine is hot. Serious
burns could be caused by high pressure fluid escaping from
the radiator. Wait until the engine and radiator cool down.
RECOMMENDED FLUIDS AND LUBRICANTS
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Retightening Manifold Bolts and Nuts
MANIFOLD BOLTS AND NUTS
Intake:
:17-23N×m (1.7 - 2.3 kg-m, 12 - 17 ft-lb)
Exhaust:
:31-38N ×m (3.2 - 3.9 kg-m, 22 - 28 ft-lb)
Retightening should be performed while engine is cold
[approximately 20ÉC (68ÉF)].
Adjusting Intake and Exhaust Valve Clearance
Adjustment should be made while engine is warm but not
running.
1. Set No. 1 cylinder in top dead center on its compression stroke, and adjust valve clearance q
1,q2,q3and q6.
2. Set No. 4 cylinder in top dead center on its compression stroke, and adjust valve clearance q
4,q5,q7and q8.
Valve clearance: Intake q
1,q3,q5and q7
0.25 mm (0.0098 in)
Exhaust q
2,q4,q6and q8
0.25 mm (0.0098 in)
Adjusting screw lock nuts:
:15-20N ×m (1.5 - 2.0 kg-m, 11 - 14 ft-lb)
Drive Belt Inspection
1. Inspect for cracks, fraying, wear or oil adhesion. Replace if
necessary.
The belts should not touch the bottom of the pulley groove.
2. Check drive belt deflection by pushing on the belt midway between pulleys. (H)
3. Adjust if belt deflections exceed the limit.
Unit: mm (in)
Drive belts Used belt deflection
Deflection of new
belt
Limit Deflection after
adjustment
Alternator 20 (0.79) 11-13
(0.43 - 0.51) 9-11
(0.35 - 0.43)
Air conditioner
compressor 12 (0.47)6 - 7.5
(0.236 - 0.295) 5 - 6.5
(0.197 - 0.256)
Power steering oil
pump 15 (0.59)8 - 9.5
(0.315 - 0.374) 7 - 8.5
(0.276 - 0.335)
Applied pushing
force 98 N (10 kg, 22 lb)
Check drive belt deflections when engine is cold.
If engine is hot, check deflections after 30 minutes or more.
SMA795
SMA785B
YMA007
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Changing Engine Oil
WARNING:
IBe careful not to burn yourself, as the engine oil is hot.
I Prolonged and repeated contact with used engine oil may
cause skin cancer; try to avoid direct skin contact with
used oil. If skin contact is made, wash thoroughly with
soap or hand cleaner as soon as possible.
1. Warm up engine, and check for oil leakage from engine com- ponents.
2. Stop engine.
3. Remove dipstick, oil filler cap and drain plug.
4. Drain oil.
5. Install drain plug.
CAUTION:
I Be sure to clean drain plug and install with new washer.
Drain plug:
: 29-39N ×m(3.0 - 4.0 kg-m, 21 - 29 ft-lb)
6. Fill slowly with new oil whilst not exceeding the maximum level.
Oil specification and viscosity:
I See ªRECOMMENDED FLUIDS AND LUBRICANTSº (MA-
17).
Oil capacity (Approximately):
Unit: (Imp qt)
Drain and refill
With oil filter change 6.2 (5-1/2)
Without oil filter change 5.5 (4-7/8)
CAUTION:
IThe refill capacity depends on the oil temperature and
drain time. Use these specifications for reference only.
Always use the dipstick to determine when the proper
amount of oil is in the engine.
7. Install dipstick and filler cap.
8. Start engine. Check area around drain plug and oil filter for any sign of oil leakage.
9. Run engine for a few minutes, then turn it off. After several minutes check oil level again.
10. If necessary, add oil whilst not exceeding the maximum level.
Changing Oil Filter
1. Remove oil filter with a suitable wrench.
WARNING:
Be careful not to burn yourself as engine and oil is hot.
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NMA054
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12. Fill reservoir tank up to ªMAXº level, and re-install radiator cap.
13. Run the engine at approximately 2,000 rpm for about oneminute.
14. Stop engine and cool it down, then refill the radiator and the reservoir tank up to the specified level.
Checking Cooling System
CHECKING HOSES
Check hoses for proper attachment, leaks, cracks, damage, loose
connections, chafing and deterioration.
CHECKING RADIATOR CAP
Apply pressure to radiator cap by means of a cap tester to see if it
is satisfactory. Radiator cap relief pressure:78-98kPa
(0.78 - 0.98 bar, 0.8 - 1.0 kg/cm
2, 11 - 14 psi)
CHECKING COOLING SYSTEM FOR LEAKS
Apply pressure to the cooling system by means of a tester to check
for leakage. Testing pressure:157 kPa (1.57 bar, 1.6 kg/cm
2, 23 psi)
CAUTION:
Higher than the specified pressure may cause radiator dam-
age.
Checking and Replacing fuel filter and Draining
Water
Be careful not to spill fuel in engine compartment. Place a rag
to absorb fuel.
REPLACING FUEL FILTER
1. Remove fuel filter sensor and drain fuel.
YMA008
SLC613
SMA990A
NMA009
ENGINE MAINTENANCETD
Changing Engine Coolant (Cont'd)
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2. Remove fuel filter, using a suitable tool.
3. Wipe clean fuel filter mounting surface on fuel filter bracket andsmear a little fuel on rubber seal of fuel filter.
4. Screw fuel filter on until a slight resistance is felt, then tighten and additional more than 2/3 turn.
5. Install fuel filter sensor to new filter.
6. Bleed air from fuel line. Refer to Bleeding Fuel System in EC section.
7. Start engine and check for leaks.
DRAINING WATER
1. Loosen drain cock and drain water.
Loosening drain cock 4 to 5 turns causes water to start drain-
ing. Do not remove drain cock by loosening it excessively. If water does not drain properly, move the priming pump up and
down.
2. Bleed air. Refer to section EC for fuel system bleeding instructions.
Cleaning and Replacing Air Cleaner Filter (Dry
paper type)
Clean or replace element more often under dusty driving condi-
tions.
NMA056
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NMA069
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Checking and Replacing fuel filter and Draining
Water (Cont'd)
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Pinch the rubber cap located under the cyclone air cleaner assem-
bly to remove dust.
Checking Injection Nozzle
WARNING:
When using nozzle tester, do not allow fuel sprayed from
nozzle to contact your hand or body, and make sure that your
eyes are properly protected with goggles.
1. Check initial injection pressure by pumping tester handle onetime per second.Initial injection pressure: Used Nozzle12,259 - 12,749 kPa
(122.6 - 127.5 bar, 125 - 130 kg/cm
2,
1,778 - 1,849 psi)
New Nozzle 12,749 - 13,730 kPa
(127.5 - 137.3 bar, 130 - 140 kg/cm
2,
1,849 - 1,991 psi)
I Always check initial injection pressure before installing
new nozzle.
Do not disassemble injection nozzle assembly. Entrust disas-
sembly or adjustment to BOSCH service shop.
2. Check spray pattern by pumping tester handle 4 to 6 times or more per second.
a. If main spray angle is within 30 degrees as shown, injec- tion nozzle is good.
b. It is still normal even if a thin stream of spray deviates from the main spray (pattern B).
3. If spray is not correct, clean injection nozzle tip or replace it.
I For details, refer to INJECTION NOZZLE ASSEMBLY in EC
section.
NMA063
EF792A
SEF079S
ENGINE MAINTENANCETD
Cleaning and Replacing Air Cleaner Filter (Dry
paper type) (Cont'd)
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Checking Idle Speed
Preparation
1. Make sure that injection timing is correct.
2. Make sure that injection nozzle are in good condition.
3. Make sure that the following parts are in good condition.
IAir cleaner clogging
I Glow system
I Engine oil and coolant levels
I Valve clearance
I Air intake system (Oil filler cap, oil level gauge, etc.)
4. Set shift lever in ªNeutralº position. Engage parking brake and lock both front and rear wheels with wheel chocks.
5. Turn off air conditioner, lights and accessories.
I Warm up engine until water temperature indicator points to middle of gauge.
I Lights, heater fan and all accessories are off.
I Attach tachometer's pick-up to No. 1 fuel injection tube.
In order to take accurate reading of engine rpm, remove clamps that secure No. 1 fuel injection tube.
Start engine.
SMA406B
SMA021A
Run engine at about 2,000 rpm for
about 2 minutes under no-load.
Run engine for one minute at idle
speed.F
Check idle speed.
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- IDLE SPEED: 700+ 50 rpm
OK
ENG Adjust idle speed by turning idle speed adjust-
ing screw.
EMA049
END
I
Race engine two or three times and allow engine to return to idle speed. If idle speed is not within
the specified range, check acceleration linkage for binding and correct it if necessary.
H
H
H
H
H
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AIR CONDITIONER EQUIPPED MODEL
1. Make certain that the clearance between the actuator idle con-trol lever pin and the injection pump control lever is within the
specified limits.
2. Adjust idle speed to specified rpm without the air conditioner operating.
3. Then check the idle speed when the air conditioner is operat- ing and make sure it is correct.
Unit: rpm
Idle speed (Air conditioner: ªONº) 850 50
If not, adjust it by turning FICD actuator stroke adjusting screw.
SMA794B
ENGINE MAINTENANCETD
Checking Idle Speed (Cont'd)
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Checking Tightening Torque
Checking should be performed while engine is cold.
MANIFOLD BOLTS AND NUTS
Intake and exhaust manifolds:Intake
:25-28N ×m (2.5 - 2.9 kg-m, 18 - 20 ft-lb)
Exhaust
:40-44N ×m (4.0 - 4.5 kg-m, 29 - 32 ft-lb)
Adjusting Intake and Exhaust Valve Clearance
Refer to EM section.
Checking Drive Belt
IBecause an auto tensioner adjustment mechanism is
provided, it is not necessary to check or adjust the tension
of accessory belt.
1. Inspect for cracks, fraying, wear or oil adhesion. Replace if necessary.
The belts should not touch the bottom of the pulley groove.
2. Check the damper unit of the auto tensioner for oil leaks.
Part Belt specifications TensionBelt deflection
Water pump, alternator, air con-
ditioner compressor belt V-ribbed belt (7 ribs)Automatic adjustment by auto
tensioner Automatic adjustment by auto
tensioner
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Removal
WATER PUMP, ALTERNATOR AND AIR CONDITIONER
BELT
1. Remove radiator shroud.
2. Contract and hold the auto tensioner using the following proce-dure.
a. Securely hold the 19 mm (0.75 in) hexagonal portion A of auto tensioner with a closed wrench.
I Preferably use a tool with a handhold of 500 mm (19.69 in) or
more in length.
I No bolts or nuts are required to be loosened during the opera-
tion.
b. Turn the hexagonal portion A in the direction shown by the arrow to contract the damper unit of the auto tensioner.
CAUTION:
I Because the tensioner has a high tension, it shall be
securely held and turned with a closed wrench.
I Because the hexagonal portion A of the tensioner is made
of aluminum and may be damaged by sudden input, turn
it slowly according to the contraction of the damper unit.
3. Remove the belt from the alternator pulley first, and then remove it from the other pulleys.
I If the tensioner is not held firmly, your finger may get caught
between the belt and the pulleys. Confirm the holding of the
tensioner, and then hold the belt side in the place away from
the pulleys to attach or remove the belt, paying attention to
prevent your finger from being caught.
CAUTION:
I When handling the belt, pay attention to prevent the oil or
coolant from adhering to the belt.
I Do not distort or bend the belt intensively.
Installation
IInstall the belt in the reverse order of removal.
I After installation of the belt, confirm that the belt engages the
pulleys securely.
I Depending on the engagement between the belt and the idler
pulley, noise (belt noise) may be heard when the engine is
started just after installation. This noise will stop with time.
Changing Engine Oil
WARNING:
IBe careful not to burn yourself, as engine oil is hot.
I Prolonged and repeated contact with used engine oil may
cause skin cancer; try to avoid direct skin contact with
used oil. If skin contact is made, wash thoroughly with
soap or hand cleaner as soon as possible.
1. Warm up engine, and check for oil leakage from engine com- ponents.
2. Remove drain plug and oil filler cap.
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