2001 NISSAN ALMERA N16 engine overheat

ENGINE LUBRICATION &
COOLING SYSTEMS
SECTION
LC
CONTENTS
QG
ENGINE LUBRICATION SYSTEM..................................3
Precautions ..................................................................3
LIQUID GASKET APPLICATION PROCEDURE............3
Preparation ..................................................................3
SPECIAL SERVICE TOOLS........................................3
Lubrication Circuit ........................................................4
Oil Pressure Check......................................................5
Oil Pump ......................................................................5
REMOVAL AND INSTALLATION.................................5
DISASSEMBLY AND ASSEMBLY................................6
INSPECTION.............................................................7
REGULATOR VALVE INSPECTION............................7
Changing Engine Oil....................................................8
Changing Oil Filter .......................................................9
Service Data and Specifications (SDS).....................10
OIL PRESSURE CHECK..........................................10
OIL PUMP INSPECTION..........................................10
REGULATOR VALVE INSPECTION..........................10
OIL CAPACITY........................................................10
ENGINE COOLING SYSTEM........................................ 11
Precautions ................................................................ 11
LIQUID GASKET APPLICATION PROCEDURE.......... 11
Preparation ................................................................ 11
SPECIAL SERVICE TOOLS...................................... 11
Cooling Circuit ...........................................................12
System Check............................................................12
CHECKING COOLING SYSTEM HOSES...................12
CHECKING RADIATOR............................................13
CHECKING RADIATOR CAP....................................13
CHECKING COOLING SYSTEM FOR LEAKS............13
Water Pump ...............................................................14
REMOVAL AND INSTALLATION...............................14
INSPECTION...........................................................14
Thermostat .................................................................15
REMOVAL AND INSTALLATION...............................15
INSPECTION...........................................................16
Radiator .....................................................................16
COMPONENTS.......................................................16
Cooling Fan ...............................................................17
COMPONENTS.......................................................17
CONTROL SYSTEM................................................17
Changing Engine Coolant..........................................17
- DRAINING ENGINE COOLANT -............................17
- REFILLING ENGINE COOLANT -...........................18
- FLUSHING COOLING SYSTEM -............................19
Radiator (Aluminum type) ..........................................20
PREPARATION.......................................................20
DISASSEMBLY........................................................20
ASSEMBLY.............................................................21
INSPECTION...........................................................22
Overheating Cause Analysis .....................................23
Service Data and Specifications (SDS).....................24
THERMOSTAT........................................................24
RADIATOR..............................................................24
COOLANT CAPACITY..............................................24
YD
ENGINE LUBRICATION SYSTEM................................25
Precautions ................................................................25
LIQUID GASKET APPLICATION PROCEDURE..........25
Preparation ................................................................25
SPECIAL SERVICE TOOLS......................................25
Lubrication Circuit ......................................................26
Oil Pressure Check....................................................27
Oil Pump ....................................................................27
REMOVAL AND INSTALLATION...............................27
DISASSEMBLY AND ASSEMBLY..............................28
OIL PUMP INSPECTION..........................................28
REGULATOR VALVE INSPECTION..........................29
Changing Engine Oil..................................................30
Oil Filter Bracket ........................................................31
REMOVAL AND INSTALLATION...............................31
Changing Oil Filter .....................................................31
REMOVAL...............................................................32
INSTALLATION........................................................32
Oil Cooler ...................................................................33
REMOVAL AND INSTALLATION...............................33
Service Data and Specifications (SDS).....................34
OIL PRESSURE CHECK..........................................34

REGULATOR VALVE INSPECTION..........................34
OIL PUMP INSPECTION..........................................34
ENGINE OIL CAPACITY...........................................34
ENGINE COOLING SYSTEM........................................35
Precautions ................................................................35
LIQUID GASKET APPLICATION PROCEDURE..........35
Preparation ................................................................35
SPECIAL SERVICE TOOLS......................................35
Cooling Circuit ...........................................................36
System Check............................................................37
CHECKING COOLING SYSTEM HOSES...................37
CHECKING RADIATOR............................................37
CHECKING RADIATOR CAP....................................37
CHECKING COOLING SYSTEM FOR LEAKS............38
Water Pump ...............................................................38
REMOVAL AND INSTALLATION...............................38
REMOVAL...............................................................39
INSPECTION...........................................................39
INSTALLATION........................................................39
Thermostat .................................................................40
REMOVAL AND INSTALLATION...............................40
INSPECTION...........................................................41
Radiator .....................................................................41
COMPONENTS.......................................................41
REMOVAL AND INSTALLATION...............................42
Cooling Fan ...............................................................42
COMPONENTS.......................................................42
CONTROL SYSTEM................................................42
Changing Engine Coolant..........................................43
- DRAINING ENGINE COOLANT -............................43
- REFILLING ENGINE COOLANT -...........................43
- FLUSHING COOLING SYSTEM -............................45
Radiator (Aluminum type) ..........................................46
Overheating Cause Analysis .....................................46
Service Data and Specifications (SDS).....................47
THERMOSTAT........................................................47
RADIATOR..............................................................47
ENGINE COOLANT CAPACITY................................47
CONTENTS(Cont'd)
LC-2

SMA182B
SMA412B
Refer to MA-20, ªRECOMMENDED FLUIDS AND LUBRI-
CANTSº.
Coolant capacity (With reservoir tank):
Unit:!(Imp qt)
M/T 6.7 (5-7/8)
A/TFor Sedan 6.6 (5-7/8)
For Hatchback 6.7 (5-7/8)
Reservoir tank capacity:
0.7!(5/8 Imp qt)
+Pour coolant through coolant filler neck slowly to allow air
in system to escape.
3. Fill radiator and reservoir tank to specified level.
4. Warm up engine to normal operating temperature without
radiator cap installed.
+If coolant overflows radiator filler hole, install filler cap.
5. Run engine at 2,500 rpm for 10 seconds and return to idle
speed with radiator cap installed.
+Repeat two or three times.
Watch coolant temperature gauge so as not to overheat the
engine.
6. Stop engine and cool it down.
+Cool down using a fan to reduce the time.
+If necessary, refill radiator up to filler neck with coolant.
7. Refill reservoir tank to MAX level line with coolant.
8. Repeat steps 4 through 7 two or more times with radiator cap
installed until coolant level no longer drops.
9. Check cooling system for leaks with engine running.
10. Warm up engine, and check for sound of coolant flow while
running engine from idle up to 3,000 rpm with heater tempera-
ture controller set at several positions between COOL and
HOT.
+Sound may be noticeable at heater water cock.
11. If sound is heard, bleed air from cooling system by repeating
steps 4 through 7 until coolant level no longer drops
+Clean excess coolant from engine.
Ð FLUSHING COOLING SYSTEM ÐNJLC0037S031. Open air relief plug.
2. Fill radiator with water until water spills from the air relief hole,
then close air relief plug. Fill radiator and reservoir tank with
water and reinstall radiator cap.
3. Run engine and warm it up to normal operating temperature.
4. Rev engine two or three times under no-load.
5. Stop engine and wait until it cools down.
6. Drain water.
7. Repeat steps 1 through 6 until clear water begins to drain from
radiator.
ENGINE COOLING SYSTEMQG
Changing Engine Coolant (Cont'd)
LC-19

SLC934
2. Check for leakage.
Overheating Cause AnalysisNJLC0028
Symptom Check items
Cooling sys-
tem parts
malfunctionPoor heat transferWater pump malfunction Worn or loose drive belt
Ð Thermostat stuck closed Ð
Damaged finsDust contamination or
paper clogging
Mechanical damage
Clogged radiator cooling
tubeExcess foreign material
(rust, dirt, sand, etc.)
Reduced air flowCooling fan does not oper-
ate
ÐÐ High resistance to fan rota-
tion
Damaged fan blades
Damaged radiator shroud Ð Ð Ð
Improper coolant mixture
ratioÐÐÐ
Poor coolant quality Ð Ð Ð
Insufficient coolantCoolant leaksCooling hoseLoose clamp
Cracked hose
Water pump Poor sealing
Radiator capLoose
Poor sealing
RadiatorO-ring for damage, deterio-
ration or improper fitting
Cracked radiator tank
Cracked radiator core
Reservoir tank Cracked reservoir tank
Overflowing reservoir tankExhaust gas leaks into
cooling systemCylinder head deterioration
Cylinder head gasket dete-
rioration
ENGINE COOLING SYSTEMQG
Radiator (Aluminum type) (Cont'd)
LC-23

Symptom Check items
Except cool-
ing system
parts mal-
functionÐ Overload on engineAbusive drivingHigh engine rpm under no
load
Driving in low gear for
extended time
Driving at extremely high
speed
Powertrain system malfunc-
tion
Ð Installed improper size
wheels and tires
Dragging brakes
Improper ignition timing
Blocked or restricted air
flowBlocked bumper Ð
Ð Blocked radiator grilleInstalled car brassiere
Mud contamination or
paper clogging
Blocked radiator Ð
Blocked condenser
Ð
Installed large fog lamp
Service Data and Specifications (SDS)
THERMOSTATNJLC0029
Valve opening temperature ÉC (ÉF) 82 (180)
Valve lift mm/ÉC (in/ÉF)More than 8/95 (0.31/203)
RADIATORNJLC0030Unit: kPa (bar, kg/cm2, psi)
Cap reliefpressureStandard 78 - 98 (0.78 - 0.98, 0.8 - 1.0, 11 - 14)
Limit 59 - 98 (0.59 - 0.98, 0.6 - 1.0,9-14)
Leakage test pressure157 (1.57, 1.6, 23)
COOLANT CAPACITYNJLC0038Unit:!(Imp qt)
M/T*6.7 (5-7/8)
A/T*Sedan 6.6 (5-7/8)
Hatchback 6.7 (5-7/8)
Reservoir tank0.7 (5/8)
*: With reservoir tank
ENGINE COOLING SYSTEMQG
Overheating Cause Analysis (Cont'd)
LC-24

REMOVAL AND INSTALLATION=NJLC00631. Remove under cover.
2. Drain coolant by removing lower radiator hose.
3. Disconnect radiator upper and lower hoses.
4. Remove radiator shroud.
5. Disconnect reservoir tank hose.
6. Remove radiator mounting bracket.
7. Remove radiator.
8. After repairing or replacing radiator, install any part removed in
reverse order of removal.
When filling radiator with coolant, refer to LC-43, ªChanging
Engine Coolantº.
Cooling FanNJLC0064COMPONENTSNJLC0064S01
JLC347B
CONTROL SYSTEMNJLC0064S02Cooling fans are controlled by ECM. For details, refer to EC-618,
ªTROUBLE DIAGNOSIS FOR OVERHEATº.
ENGINE COOLING SYSTEMYD
Radiator (Cont'd)
LC-42

+While filling, if coolant from engine side spills out, be sure to
reconnect the heater hose.
+Fill coolant to the level of the radiator cap at a rate of 2!(1-3/4
Imp qt)/min or lower.
(Close the air relief plugs in order starting with the location from
where the coolant began spilling out.)
CAUTION:
If the filling rate is too fast, this could lead to air being mixed
in the coolant. Be sure to fill the coolant slowly according to
the rate indicated above.
+Replace the copper washer of the air bleeding plug.
Air relief plug:
: 6.7 - 7.9 N´m (0.68 - 0.81 kg-m, 59 - 70 in-lb)
+Use genuine Nissan anti-freeze coolant or equivalent
mixed with water (distilled or demineralized).
SMA182B
SMA412B
Refer to MA-20, ªRECOMMENDED FLUIDS AND LUBRI-
CANTSº.
Engine coolant capacity (With reservoir tank):
8.7!(7-5/8 Imp qt)
Reservoir tank capacity:
0.7!(5/8 Imp qt)
+Pour coolant through coolant filler neck slowly to allow air
in system to escape.
4. Fill radiator and reservoir tank to specified level.
5. Warm up engine to normal operating temperature without
radiator cap installed.
+If coolant overflows radiator filler hole, install radiator cap.
6. Run engine at 3,000 rpm for 10 seconds and return to idle
speed with radiator cap installed.
+Repeat two or three times.
Watch coolant temperature gauge so as not to overheat the
engine.
7. Stop engine and cool it down.
+Cool down using a fan to reduce the time.
+If necessary, refill radiator up to filler neck with coolant.
8. Refill reservoir tank to MAX level line with coolant.
9. Repeat steps 4 through 7 two or more times with radiator cap
installed until coolant level no longer drops.
10. Check cooling system for leaks with engine running.
11. Warm up engine, and check for sound of coolant flow while
running engine from idle up to 3,000 rpm with heater tempera-
ture controller set at several positions between COOL and
HOT.
+Sound may be noticeable at heater water cock.
12. If sound is heard, bleed air from cooling system by repeating
steps 4 through 7 until coolant level no longer drops
+Clean excess coolant from engine.
ENGINE COOLING SYSTEMYD
Changing Engine Coolant (Cont'd)
LC-44

Radiator (Aluminum type)=NJLC0082Refer to LC-20, ªRadiator (Aluminum type)º.
Overheating Cause AnalysisNJLC0070
Symptom Check items
Cooling sys-
tem parts
malfunctionPoor heat transferWater pump malfunction Worn or loose drive belt
Ð Thermostat stuck closed Ð
Damaged finsDust contamination or
paper clogging
Mechanical damage
Clogged radiator cooling
tubeExcess foreign material
(rust, dirt, sand, etc.)
Reduced air flowCooling fan does not oper-
ate
ÐÐ High resistance to fan rota-
tion
Damaged fan blades
Damaged radiator shroud Ð Ð Ð
Improper coolant mixture
ratioÐÐÐ
Poor coolant quality Ð Ð Ð
Insufficient coolantCoolant leaksCooling hoseLoose clamp
Cracked hose
Water pump Poor sealing
Radiator capLoose
Poor sealing
RadiatorO-ring for damage, dete-
rioration or improper fit-
ting
Cracked radiator tank
Cracked radiator core
Reservoir tank Cracked reservoir tank
Overflowing reservoir tankExhaust gas leaks into
cooling systemCylinder head deteriora-
tion
Cylinder head gasket
deterioration
ENGINE COOLING SYSTEMYD
Radiator (Aluminum type)
LC-46