2001 NISSAN ALMERA N16 spark plugs

Engine and Emission Control Maintenance
(Gasoline engine)
NJMA0005S04Abbreviations: I = Inspect and correct or replace as necessary, R = Replace, A = Adjust, C = Clean, E = Check and correct the
engine coolant mixture ratio.
MAINTENANCE OPERATIONMAINTENANCE INTERVAL
Refer-
ence
page Perform either at number of kilometers (miles)
or months, whichever comes first.km x 1,000
(Miles x 1,000)
Months1
(0.6)
Ð10
(6)
620
(12)
1230
(18)
1840
(24)
2450
(30)
3060
(36)
3670
(42)
4280
(48)
48
Underhood and under vehicle
Torque of manifolds & exhaust tube nuts*1 I Ð
Intake & exhaust valve clearance*2AAAAEM-42
Drive belts I*1 I*1 I I*1 I EM-15
Engine oil (Use API SE, SF, SG, SH or SJ
oil.)HRRRRRRRRLC-8
Engine oil filter (Use Part No. 15208 65F01 or
equivalent)HRRRRRRRRLC-9
Engine coolant (Use Nissan genuine engine
coolant L2N or equivalent in its quality.)See NOTE (1) E R LC-17
Cooling systemIIIILC-12
Fuel linesI I FE-5
Air cleaner filter (Dry paper type)HCCCRCCCREM-0
Air cleaner filter (Viscous paper type)HR R EM-17
Fuel filter See NOTE (2) FE-9
Positive crankcase ventilation (PCV) system I*1 I*1 I*1 I*1 EC-37
Spark plugs (Conventional type)*3 R R EM-18
Spark plugs (Conventional type, For leaded
fuel)*1I R I R I R I R EM-18
Spark plugs (Conventional type, For unleaded
fuel)*1I I I R I I I R EM-18
EVAP vapor lines (With carbon canister) I I EC-34
Vacuum hoses & connections*1IIIIEC-27
Heated oxygen sensor (Exhaust gas sensor) I I EC-176
NOTE:
HMaintenance items with ªHº should be performed more frequently according to ªMaintenance Under Severe Driving Con-
ditionsº.
(1) Use Nissan genuine engine coolant, or equivalent in its quality, in order to avoid possible aluminum corrosion within the
engine cooling system caused by the use of non-genuine engine coolant. After first replacement, replace every 40,000 km (24,
000 miles) or 24 months.
(2) Maintenance-free item. For service procedures, refer to FE section.
*1: Models without three way catalyst
*2: For models with three way catalyst, periodic maintenance is not required. However, if valve noise increases, check valve clearance.
*3: Models with three way catalyst
PERIODIC MAINTENANCE (EXCEPT FOR EUROPE)
Engine and Emission Control Maintenance (Gasoline engine)
MA-5

NJMA0043
The following tables show the normal maintenance schedule. Depending upon weather and atmospheric
conditions, varying road surfaces, individual driving habits and vehicle usage, additional or more frequent
maintenance may be required.
Periodic maintenance beyond the last period shown on the tables requires similar maintenance.
Maintenance Schedule for Petrol Engines
(Annual Mileage < 30,000 km/year)
NJMA0043S01QG15DE/QG18DE ENGINESNJMA0043S0101Abbreviations: R = Replace I = Inspect: Correct or replace if necessary
MAINTENANCE OPERATIONMAINTENANCE INTERVAL
Refer-
ence
pages Perform on a kilometer basis, but on
an annual basis when driving less than
15,000 km (9,000 miles) per yearkm x 1,000
(miles x 1,000)
Months15
(9)
1230
(18)
2445
(27)
3660
(36)
4875
(45)
6090
(54)
72105
(63)
84120
(72)
96
Engine compartment and under vehicle
Engine oil (Use recommended oil)HRRRRRRRRLC-8
Engine oil filter (Use NISSAN genuine
part or equivalent)HRRRRRRRRLC-9
Drive beltsIIIIIIIIEM-15
Cooling systemIIIIIIIILC-12
Engine anti-freeze coolant (Use genu-
ine NISSAN Anti-Freeze Coolant (L2N)
or equivalent)See NOTE (1) I R I LC-17
Air cleaner filterHR R EM-17
Intake and exhaust valve clearance See NOTE (2) EM-42
Fuel and EVAP vapour linesIIIIFE-5/
EC-33
Spark plugsRRRREM-18
Fuel filter See NOTE (3) FE-9
Heated oxygen sensor (Exhaust gas
sensor)HSee NOTE (4)GI-40,
EC-45
NOTE:
(1) First replace at 90,000 km (54,000 miles)/60 months, then every 60,000 km (36,000 miles)/48 months. Perform ªIº (Check-
ing the mixture ratio and correcting the mixture ratio if necessary) at the middle of replacement interval.
(2) Periodic maintenance is not required. However, if valve noise increases, check valve clearance.
(3) Fuel filter is maintenance-free. For service procedures, refer to FE section.
(4) Perform only according to ªMaintenance Under Severe Driving Conditionsº for models without Euro-OBD system. For
models with Euro-OBD system, periodic maintenance is not required.
HMaintenance items with ªHº should be performed more frequently according to ªMaintenance Under Severe Driving Con-
ditionsº.
PERIODIC MAINTENANCE (FOR EUROPE)
Maintenance Schedule for Petrol Engines (Annual Mileage < 30,000 km/year)
MA-8

Maintenance Schedule for Petrol Engines
(Annual Mileage > 30,000 km/year)
=NJMA0043S04QG15DE/QG18DE ENGINESNJMA0043S0401Abbreviations: R = Replace I = Inspect: Correct or replace if necessary
MAINTENANCE OPERATIONMAINTENANCE INTERVAL
Refer-
ence
pages Perform on a kilometer basis only.km x 1,000
(miles x 1,000)15
(9)30
(18)45
(27)60
(36)75
(45)90
(54)105
(63)120
(72)
Engine compartment and under vehicle
Engine oil (Use recommended oil)HRRRRRRRRLC-8
Engine oil filter (Use NISSAN genuine
part or equivalent)HRRRRRRRRLC-9
Drive beltsIIIIIIIIEM-15
Cooling systemIIIILC-12
Engine anti-freeze coolant (Use genu-
ine NISSAN Anti-Freeze Coolant (L2N)
or equivalent)See NOTE (1) I R I LC-17
Air cleaner filterHR R EM-17
Intake & exhaust valve clearance See NOTE (2) EM-42
Fuel and EVAP vapor lines I IFE-5/
EC-36
Spark plugsRRRREM-18
Fuel filter See NOTE (3) FE-9
Heated oxygen sensorHSee NOTE (4)GI-40/
EC-45
NOTE:
(1) First replace at 90,000 km (54,000 miles), then every 60,000 km (36,000 miles). Perform ªIº (checking the mixture ratio and
correcting the mixture ratio if necessary) at the middle of replacement interval.
(2) Periodic maintenance is not required. However, if valve noise increases, check valve clearance.
(3) Fuel filter is maintenance-free. For service procedures, refer to FE section.
(4) Perform only according to ªMaintenance Under Severe Driving Conditionsº for models without Euro-OBD system. For
models with Euro-OBD system, periodic maintenance is not required.
HMaintenance items with ªHº should be performed more frequently according to ªMaintenance Under Severe Driving Con-
ditionsº.
PERIODIC MAINTENANCE (FOR EUROPE)
Maintenance Schedule for Petrol Engines (Annual Mileage > 30,000 km/year)
MA-14

NJEM0007
1. Warm up engine.
2. Turn ignition switch OFF.
3. Release fuel pressure.
Refer to EC-38, ªReleasing Fuel Pressureº.
4. Remove ignition coils.
5. Remove spark plugs.
+Clean area around plug with compressed air before removing
the spark plug.
SEM973E
AEM308
6. Attach a compression tester to No. 1 cylinder.
7. Depress accelerator pedal fully to keep throttle valve wide
open.
8. Crank engine and record highest gauge indication.
9. Repeat the measurement on each cylinder as shown above.
+Always use a fully-charged battery to obtain specified
engine speed.
Compression pressure: kPa (bar, kg/cm
2, psi)/rpm
QG18DE
Standard
1,324 (13.24, 13.5, 192)/350
Minimum
1,128 (11.28, 11.5, 164)/350
Maximum allowable difference between cylinders
98 (0.98, 1.0, 14)/350
QG15DE
Standard
1,372 (13.720, 13.99, 198.9)/350
Minimum
1,176 (11.759, 11.99, 170.5)/350
Maximum allowable difference between cylinders
98 (0.98, 1.0, 14)/350
10. If cylinder compression in one or more cylinders is low, pour a
small amount of engine oil into the cylinder through the spark
plug hole and retest compression.
+If adding oil improves cylinder compression, piston rings
may be worn or damaged. If so, replace piston rings after
checking piston.
+If pressure stays low, a valve may be sticking or seating
improperly. Inspect and repair valve and valve seat. Refer
to SDS, EM-70. If valve or valve seat is damaged
excessively, replace them.
+If compression in any two adjacent cylinders is low and if add-
ing oil does not improve compression, there is leakage past the
gasket surface. If so, replace cylinder head gasket.
11. Reinstall spark plugs, ignition coils and fuel pump fuse.
12. Perform ªSelf-diagnosis Procedureº referring to EC-68, ªHow
to Erase DTCº if any DTC appears.
MEASUREMENT OF COMPRESSION PRESSUREQG
EM-14

SEM870F
Checking and ChangingNJEM00441. Disconnect ignition coil harness connectors.
2. Remove ignition coils.
SMA294A
3. Remove spark plugs with spark plug wrench.
4. Clean plugs in sand blast cleaner.
5. Check insulator for cracks or chips, gasket for damage or dete-
rioration and electrode for wear and burning. If they are exces-
sively worn away, replace with new spark plugs.
6. Check spark plug gap.
Spark plug
NGK Champion
TypeStandard BKR5E-11 RC10YC4
Hot BKR4E-11 Ð
Cold BKR6E-11 Ð
Plug gap mm (in) 1.0 - 1.1 (0.039 - 0.043)
SMA476
7. Install spark plugs.
Spark plug:
: 20 - 29 N´m (2.0 - 3.0 kg-m, 14 - 22 ft-lb)
8. Install ignition coils.
9. Connect ignition coil harness connectors.
SPARK PLUGQG
Checking and Changing
EM-18

CAUTION:
+After removing timing chain, do not turn crankshaft and
camshaft separately, or valves will strike piston heads.
+When installing chain tensioner, oil seats, or other sliding
parts, lubricate contacting surfaces with new engine oil.
+Apply new engine oil to bolt threads and seat surfaces
when installing camshaft sprocket and crankshaft pulley.
+When removing oil pump assembly, remove camshaft
position sensor (PHASE), then remove timing chain from
engine.
+Be careful not to damage sensor edges.
SEM869F
RemovalNJEM01051. Drain engine coolant from radiator and cylinder block.
Be careful not to spill coolant on drive belts.
2. Remove reservoir tank.
3. Release fuel pressure.
Refer to EC-38, ªFuel Pressure Releaseº.
4. Remove the following belts.
+Power steering pump drive belt
+Alternator drive belt
5. Remove front right-side wheel.
6. Remove front/right splash undercover.
7. Remove front exhaust tube.
SEM870F
8. Remove vacuum hoses, fuel hoses, and so on.
9. Remove ignition coils.
10. Remove spark plugs.
SEM102G
11. Remove rocker cover bolts in numerical order as shown in the
figure.
TIMING CHAINQG
Components (Cont'd)
EM-23

SEM887F
24. Install cylinder head front cover.
+Apply liquid gasket to cylinder head front cover.
+Use Genuine Liquid Gasket or equivalent.
SEM889F
25. Install camshaft position sensor (PHASE).
SEM888F
26. Before installing rocker cover, apply a continuous bead of liq-
uid gasket to mating surface of cylinder head.
SEM105G
27. Install rocker cover with rocker cover gasket and tighten bolts
in numerical order as shown in the figure.
28. Install spark plugs.
29. Install ignition coils.
30. Install front exhaust tube.
31. Install front/right splash undercover.
32. Install front right-side wheel.
33. Drive belts.
For adjusting drive belt deflection, refer to EM-15, ªCheckingº.
34. Reinstall parts in reverse order of removal.
TIMING CHAINQG
Installation (Cont'd)
EM-30

CAUTION:
+When installing camshaft and oil seal, lubricate contacting
surfaces with new engine oil.
+When tightening cylinder head bolts, camshaft sprocket
bolts and camshaft bracket bolts, lubricate bolt threads
and seat surfaces with new engine oil.
+Attach tags to valve lifters so as not to mix them up.
SEM869F
RemovalNJEM00171. Drain engine coolant from radiator and cylinder block.
Be careful not to spill coolant on drive belts.
2. Release fuel pressure.
Refer to EC-38, ªFuel Pressure Releaseº.
3. Remove drive belts.
4. Remove air duct to intake manifold collector.
5. Remove front undercovers.
6. Remove front exhaust tube.
SEM870F
7. Disconnect vacuum hoses, fuel hoses, water hoses, wires,
harness, connectors and so on.
8. Remove intake manifold rear supports.
9. Remove exhaust manifold.
10. Remove ignition coils.
11. Remove spark plugs.
SEM102G
12. Remove rocker cover bolts in numerical order as shown in the
figure.
SEM872F
13. Set No. 1 piston at TDC on its compression stroke.
CYLINDER HEADQG
Components (Cont'd)
EM-34