radiator cap NISSAN ALMERA TINO 2001 Service Owner's Manual

CHECKING RADIATORNLLC0017S04Check radiator for mud or clogging. If necessary, clean radiator as
follows.
+Be careful not to bend or damage the radiator fins.
+When radiator is cleaned without removal, remove all sur-
rounding parts such as cooling fan, radiator shroud and horns.
Then tape the harness and connectors to prevent water from
entering.
1. Apply water by hose to the back side of the radiator core ver-
tically download.
2. Apply water again to all radiator core surfaces once per
minute.
3. Stop washing if any stains no longer flow out from the radia-
tor.
4. Blow air into the back side of radiator core vertically download.
+Use compressed air lower than 490 kPa (4.9 bar, 5 kg/cm
2,71
psi) and keep distance more than 30 cm (11.8 in).
5. Blow air again into all the radiator core surfaces once per
minute until no water sprays out.
SLC613-A
CHECKING RADIATOR CAPNLLC0017S03To check radiator cap, apply pressure to cap with a tester.
Radiator cap relief pressure:
Standard
78-98kPa
(0.78 - 0.98 bar, 0.8 - 1.0 kg/cm
2, 11 - 14 psi)
Limit
59-98kPa
(0.59 - 0.98 bar, 0.6 - 1.0 kg/cm
2,9-14psi)
SMA967B
Pull the negative pressure valve to open it.
Check that it closes completely when released.
SLC756AA
CHECKING COOLING SYSTEM FOR LEAKSNLLC0017S02To check for leakage, apply pressure to the cooling system with a
tester.
Testing pressure:
157 kPa (1.57 bar, 1.6 kg/cm
2, 23 psi)
CAUTION:
Higher pressure than specified may cause radiator damage.
ENGINE COOLING SYSTEMQG
System Check (Cont'd)
LC-13

Water Pump
REMOVAL AND INSTALLATIONNLLC0018
SEM858F
SEM859F
CAUTION:
+When removing water pump assembly, be careful not to
get coolant on drive belt.
+Water pump cannot be disassembled and should be
replaced as a unit.
+After installing water pump, and check for leaks using
radiator cap tester.
1. Drain engine coolant.
Refer to LC-19, ªChanging Engine Coolantº.
2. Remove drive belts and idler pulley.
3. Loosen water pump pulley bolts.
4. Remove water pump pulley.
5. Remove front right wheel.
6. Remove front right undercover and front right fender protector.
7. Remove water pump bolts.
8. Remove water pump.
9. Reinstall parts in reverse order of removal.
SEM860F
INSPECTIONNLLC0019+Check body assembly and vane for rust or corrosion.
+Check for rough operation due to excessive end play.
ENGINE COOLING SYSTEMQG
Water Pump
LC-14

Radiator
COMPONENTS=NLLC0025
NLC091
1. Reservoir tank
2. Reservoir tank bracket
3. Reservoir hose
4. Radiator cap5. Mounting bracket
6. Radiator
7. Mounting rubber8. Lower radiator hose
9. Upper radiator hose
10. Cooling fan assembly
ENGINE COOLING SYSTEMQG
Radiator
LC-17

Ð REFILLING ENGINE COOLANT ÐNLLC0037S021. Install reservoir tank, lower radiator hose and cylinder block
drain plug.
+Apply sealant to the thread of cylinder block drain plug.
: 35 - 44 N´m (3.50 - 4.50 kg-m, 26 - 32 ft-lb)
2. Fill radiator slowly with coolant until coolant spills from the air
relief plug, then install air relief plug.
Air relief plug:
: 6.7 - 7.8 N´m (0.68 - 0.80 kg-m, 59 - 69 in-lb)
+Use genuine Nissan anti-freeze coolant or equivalent.
SMA182B
SMA412B
Refer to MA-20, ªRECOMMENDED FLUIDS AND LUBRI-
CANTSº.
Coolant capacity:
Unit:!(Imp qt)
With reservoir tank 6.75 (6)
Reservoir tank 0.7 (5/8)
+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 ÐNLLC0037S031. 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.
ENGINE COOLING SYSTEMQG
Changing Engine Coolant (Cont'd)
LC-20

7. Repeat steps 1 through 6 until clear water begins to drain from
radiator.
Overheating Cause AnalysisNLLC0028
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
Overheating Cause Analysis
LC-21

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)
THERMOSTATNLLC0029
Valve opening temperature ÉC (ÉF) 82 (180)
Valve lift mm/ÉC (in/ÉF)More than 8/95 (0.31/203)
RADIATORNLLC0030Unit: 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 CAPACITYNLLC0038Unit:!(Imp qt)
With reservoir tank6.75 (6)
Reservoir tank0.7 (5/8)
ENGINE COOLING SYSTEMQG
Overheating Cause Analysis (Cont'd)
LC-22

SEM164F
AEM080
Precautions
LIQUID GASKET APPLICATION PROCEDURENLLC01301. Use a scraper to remove all traces of old liquid gasket from
mating surfaces and grooves. Also, completely clean any oil
from these areas.
2. Apply a continuous bead of liquid gasket to mating surfaces.
(Use Genuine Liquid Gasket or equivalent.)
+For oil pan, be sure liquid gasket diameter is 4.0 to 5.0 mm
(0.157 to 0.197 in).
+For areas except oil pan, be sure liquid gasket diameter is 2.0
to 3.0 mm (0.079 to 0.118 in).
3. Apply liquid gasket around the inner side of bolt holes (unless
otherwise specified).
4. Assembly should be done within 5 minutes after coating.
5. Wait at least 30 minutes before refilling engine oil and engine
coolant.
Preparation
SPECIAL SERVICE TOOLNLLC0131The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Tool number
Tool nameDescription
EG17650301
Radiator cap tester
adapter
NT564
Adapting radiator cap tester to radiator filler neck
a: 28 (1.10) dia.
b: 31.4 (1.236) dia.
c: 41.3 (1.626) dia.
Unit: mm (in)
ENGINE COOLING SYSTEMSR
Precautions
LC-31

Cooling CircuitNLLC0132
NLC087
System CheckNLLC0133WARNING:
Never remove the radiator cap when the engine is hot. Serious
burns could occur from high pressure coolant escaping from
the radiator.
Wrap a thick cloth around the cap. Slowly turn it a quarter turn
to allow built-up pressure to escape. Carefully remove the cap
by turning it all the way.
CHECKING COOLING SYSTEM HOSESNLLC0133S01Check hoses for the following:
+Improper attachment
+Leaks
+Cracks
+Damage
+Chafing
+Deterioration
SLC546AA
CHECKING COOLING SYSTEM FOR LEAKSNLLC0133S02To check for leakage, apply pressure to the cooling system with a
tester.
Testing pressure:
157 kPa (1.6 kg/cm
2, 23 psi)
CAUTION:
Higher pressure than specified may cause radiator damage.
ENGINE COOLING SYSTEMSR
Cooling Circuit
LC-32

CHECKING RADIATORNLLC0133S03Check radiator for mud or clogging. If necessary, clean radiator as
follows.
+Be careful not to bend or damage the radiator fins.
+When radiator is cleaned without removal, remove all sur-
rounding parts such as cooling fan, rediator shroud and horns.
Then tape the harness and connectors to prevent water from
entering.
1. Apply water by hose to the back side of the radiator core ver-
tically download.
2. Apply water again to all radiator core surfaces once per
minute.
3. Stop washing if any stains no longer flow out from the radia-
tor.
4. Blow air into the back side of radiator core vertically download.
+Use compressesd air lower than 490 kPa (5 kg/cm
2, 71 psi)
and keep distance more than 30 cm (11.8 in).
5. Blow air again into all the radiator core surfaces once per
minute until no water sprays out.
SLC613-A
CHECKING RADIATOR CAPNLLC0133S04To check radiator cap, apply pressure to cap with a tester.
Radiator cap relief pressure:
Standard
78 - 98 kPa (0.8 - 1.0 kg/cm
2, 11 - 14 psi)
Limit
59 - 98 kPa (0.6 - 1.0 kg/cm
2,9-14psi)
SMA967B
Pull the negative pressure valve to open it.
Check that it closes completely when released.
SLC266B
Water Pump
REMOVAL AND INSTALLATIONNLLC01271. Drain coolant from radiator.
2. Remove cylinder block drain plug located at left front of cylin-
der block and drain coolant.
3. Remove front RH wheel and engine side cover.
4. Remove drive belts. Refer to EM-86, ªChecking Drive Beltsº.
5. Remove RH engine mounting. Refer to EM-131, ªENGINE
REMOVALº.
ENGINE COOLING SYSTEMSR
System Check (Cont'd)
LC-33

SLC556AB
6. Remove water pump.
CAUTION:
+When removing water pump assembly, be careful not to
get coolant on drive belt.
+Water pump cannot be disassembled and should be
replaced as a unit.
+After installing water pump, connect hose and clamp
securely, then check for leaks using radiator cap tester.
SLC433A
7. Use a scraper to remove liquid gasket from water pump.
+Also remove traces of liquid gasket from mating surface
of cylinder block.
SLC434AA
8. Apply a continuous bead of liquid gasket to mating surface of
water pump.
+Use Genuine Liquid Gasket or equivalent.
When filling radiator with coolant, refer to LC-38, ªChanging
Engine Coolantº.
When installing drive belts, refer to EM-86, ªChecking Drive
Beltsº.
9. Install any parts removed in reverse order of removal.
SLC408C
INSPECTIONNLLC0128+Check body assembly for rust or corrosion.
+Check for rough operation due to excessive end play.
ENGINE COOLING SYSTEMSR
Water Pump (Cont'd)
LC-34