1999 NISSAN PRIMERA spark plugs

VALVE OIL SEAL
1. Remove accelerator cable.
2. Remove rocker cover and oil separator.
3. Remove camshafts and sprockets.
Refer to ªRemovalº in ªCYLINDER HEADº (EM-87).
4. Remove spark plugs.
5. Install air hose adapter into spark plug hole and apply air
pressure to hold valves in place. Apply a pressure of 490 kPa
(4.9 bar, 5 kg/cm
2, 71 psi).
6. Remove rocker arm, rocker arm guide and shim.
7. Remove valve spring with Tool.
Piston concerned should be set at TDC to prevent valve from
falling.
8. Remove valve oil seal.
9. Apply engine oil to new valve oil seal and install it with Tool.
FRONT OIL SEAL
1. Remove the following parts:
IEngine undercover
IFront RH wheel and engine side cover
IDrive belts
ICrankshaft pulley
2. Remove front oil seal.
Be careful not to scratch front cover.
SEM077D
SEM604E Compressor assemblyAttachment
SEM994C
SEM358E
10.7 mm
(0.421 in)
KV10115600
SEM997C
OIL SEAL REPLACEMENTSR20DE
EM-84

RemovalNLEM01311. Release fuel pressure.
Refer to EC-SR-31, ªFuel Pressure Releaseº.
2. Remove engine under covers.
3. Remove front RH wheel and engine side cover.
4. Drain coolant by removing cylinder block drain plug and radia-
tor drain cock. Refer to MA-29, ªChanging Engine Coolantº.
5. Remove radiator.
6. Remove air duct to intake manifold.
7. Disconnect the following parts:
IVacuum hoses
IFuel hoses
IWires
IHarness
IConnectors
IFront exhaust tube
8. Remove all spark plugs.
9. Remove rocker cover bolts in numerical order.
10. Remove rocker cover.
11. Remove intake manifold supports.
12. Remove water pipe assembly.
SEM029G Engine
front
Loosen in numerical order.Rocker cover
SEM030G Intake manifold
supports
SEM065GIntake
manifold
CYLINDER HEADSR20DE
Removal
EM-87

17. Install rocker cover and oil separator.
IBe sure to install washers between bolts and rocker cover.
ITightening procedure
STEP 1: Tighten bolts1-10-11-13-8inthat order.
STEP 2: Tighten bolts1-13inthat order.
:8-10N×m (0.8 - 1.0 kg-m, 69 - 87 in-lb)
18. Install the following parts:
ISpark plugs and leads
IRadiator
Refit hoses and refill with coolant.
Refer to MA-29, ªChanging Engine Coolantº.
IFront RH wheel
IEngine undercovers
19. Connect the following:
IVacuum hoses
IFuel hoses
IWire harnesses and connectors
IAir duct to intake manifold
IFront exhaust tube
SEM052G Engine
front
Tighten in numerical order.Rocker cover
CYLINDER HEADSR20DE
Installation (Cont'd)
EM-105

MAINTENANCE
SECTION
MA
CONTENTS
PRECAUTIONS AND PREPARATION.......................... 3
Special Service Tools ................................................ 3
Commercial Service Tool ........................................... 3
PRE-DELIVERY INSPECTION ITEMS.......................... 4
GENERAL MAINTENANCE.......................................... 5
PERIODIC MAINTENANCE.......................................... 6
Maintenance Schedule for Petrol Engines
(Annual Mileage < 30,000 km/year) .......................... 6
Chassis and Body Maintenance ................................ 7
Maintenance Schedule for Diesel Engines
(Annual Mileage < 30,000 km/year) .......................... 8
Chassis and Body Maintenance ................................ 9
Maintenance Under Severe Driving Conditions
(Annual Driving Distance < 30,000 km/year) .......... 10
Maintenance Schedule for Petrol Engines
(Annual Mileage > 30,000 km/year) ......................... 11
Chassis and Body Maintenance .............................. 12
Maintenance Schedule for Diesel Engines
(Annual Mileage > 30,000 km/year) ........................ 13
Chassis and Body Maintenance .............................. 14
Maintenance Under Severe Driving Conditions
(Annual Driving Distance > 30,000 km) .................. 15
RECOMMENDED FLUIDS AND LUBRICANTS......... 16
Fluids and Lubricants .............................................. 16
SAE Viscosity Number ............................................ 17
QG
ENGINE MAINTENANCE............................................ 18
Checking Drive Belts ............................................... 18
Changing Engine Coolant........................................ 19
Checking Cooling System ....................................... 21
Checking Radiator Cap ........................................... 21
Checking Fuel Lines ................................................ 22Changing Fuel Filter ................................................ 23
Changing Air Cleaner Filter ..................................... 23
Changing Engine Oil................................................ 24
Changing Engine Oil Filter ...................................... 24
Checking and Changing Spark Plugs ..................... 25
Checking Positive Crankcase Ventilation (PCV)
System ..................................................................... 26
Checking Vacuum Hoses and Connections ............ 26
Checking EVAP Vapour Lines ................................. 26
Checking Front Heated Oxygen Sensor (HO2S) .... 27
SR20DE
ENGINE MAINTENANCE............................................ 28
Checking Drive Belts ............................................... 28
Changing Engine Coolant........................................ 29
Checking Cooling System ....................................... 31
Checking Fuel Lines ................................................ 33
Changing Fuel Filter ................................................ 33
Changing Air Cleaner Filter ..................................... 34
Changing Engine Oil................................................ 34
Changing Engine Oil Filter ...................................... 35
Checking and Changing Spark Plugs ..................... 35
Checking Ignition Leads .......................................... 36
Checking Positive Crankcase Ventilation (PCV)
System ..................................................................... 36
Checking Vacuum Hoses and Connections ............ 37
Checking EVAP Vapor Lines ................................... 37
Checking Front Heated Oxygen Sensor (HO2S) .... 38
CD20T
ENGINE MAINTENANCE............................................ 39
Checking Drive Belts ............................................... 39
Changing Engine Coolant........................................ 40
MA

Maintenance Schedule for Petrol Engines
(Annual Mileage < 30,000 km/year)
QG16DE/QG18DE/SR20DE engines
Abbreviations: R = Replace I = Inspect: Correct or replace if necessary [ ] = At the specified mileage only
MAINTENANCE OPERATION MAINTENANCE INTERVAL
Perform on a kilometer basis, but on
an annual basis when driving less
than 15,000 km (9,000 miles) per yearkm×1,000 15 30 45 60 75 90 105 120
(miles×1,000) (9) (18) (27) (36) (45) (54) (63) (72)
Months 12 24 36 48 60 72 84 96QG16DE/
QG18DESR20DE
Engine compartment and under vehicleReference pages
Engine oil (Use recommended oil)*RRRRRRRRMA-24 MA-34
Engine oil filter (Use NISSAN genuine
part or equivalent)*RRRRRRRRMA-24 MA-35
Drive beltsIIIIIIIIMA-18 MA-28
Cooling systemIIIIIIIIMA-21 MA-31
Engine anti-freeze coolant (Use genuine
NISSAN Anti-Freeze Coolant (L2N) or
equivalent)See NOTE (1) MA-19 MA-29
Air cleaner filter* R R MA-23 MA-34
Intake and exhaust valve clearance
(Non HLA models)See NOTE (2) EM-92—
Fuel and vapour linesIIIIMA-22/MA-26MA-33/
MA-37
Spark plugs (Conventional type)RRRRMA-25 MA-35
Ignition leads I I—MA-36
Fuel filter*R MA-23 MA-33
Heated oxygen sensor* See NOTE (3)MA-27,
EC-QG-134/
EC-QG-173MA-38,
EC-SR-146/
EC-SR-182
PCVsystem IIIIMA-26MA-36
NOTE: (1) First replace at 90,000 km (54,000 miles)/72 months, then every 60,000 km (36,000 miles)/48 months.
(2) Periodic maintenance is not required for QG engine models. However, if valve noise increases, check valve clear-
ance.
(3) Perform only according to“Maintenance under severe driving conditions”.
* Maintenance items with“*”should be performed more frequently according to“Maintenance under severe driv-
ing conditions”.
PERIODIC MAINTENANCE
MA-6

Maintenance Schedule for Petrol Engines
(Annual Mileage > 30,000 km/year)
QG16DE/QG18DE/SR20DE engines
Abbreviations: R = Replace I = Inspect: Correct or replace if necessary
MAINTENANCE OPERATION MAINTENANCE INTERVAL
Perform on a kilometer
basis only.km×1,000 15 30 45 60 75 90 105 120
(miles x 1,000) (9) (18) (27) (36) (45) (54) (63) (72)QG16DE/
QG18DESR20DE
Engine compartment and under vehicleReference pages
Engine oil (Use recom-
mended oil)*RRRRRRRR MA-24 MA-34
Engine oil filter (Use NISSAN
genuine part or equivalent)*RRRRRRRR MA-24 MA-35
Drive beltsIIIIIIII MA-18 MA-28
Cooling system I I I I MA-21 MA-31
Engine anti-freeze coolant
(Use genuine NISSAN Anti-
Freeze Coolant (L2N) or
equivalent)See NOTE (1) MA-19 MA-29
Air cleaner filter* R R MA-23 MA-34
Intake & exhaust valve clear-
ance (Non HLA models)See NOTE (2) EM-92—
Fuel and vapour lines I IMA-22/
MA-26MA-33/
MA-37
Spark plugs (Conventional type) R R R R MA-25 MA-35
Ignition leadsI—MA-36
Fuel filter*R MA-23 MA-33
Heated oxygen sensor* See NOTE (3)EC-QG-134/
EC-QG-173EC-SR-146/
EC-SR-182
PCV system I I I I MA-26 MA-36
PCV filter* R R——
NOTE: (1) First replace at 90,000 km (54,000 miles), then every 60,000 km (36,000 miles).
(2) Periodic maintenance is not required for QG engine models. However, if valve noise increases, check valve clear-
ance.
(3) Perform only according to“Maintenance under severe driving conditions”.
* Maintenance items with“*”should be performed more frequently according to“Maintenance under severe driving
conditions”.
PERIODIC MAINTENANCE
MA-11

3. Screw in the oil filter until a slight resistance is felt, then
tighten an additional 2/3 turn.
4. Add engine oil.
Refer to“Changing Engine Oil”, MA-24.

Clean excess oil from engine.
Checking and Changing Spark Plugs
1. Remove ignition coils.
2. Remove spark plugs with spark plug wrench.
3. Check insulator for cracks or chips, gasket for damage or
deterioration and electrode for wear and burning. If exces-
sively worn, replace with new spark plugs.
Spark plug:
Make CHAMPION NGK
Standard type RC10YCC4, RC10YC4 BKR5E-11
Hot type RC12YCC4, RC12YC4 BKR4E-11
Cold type RC7YCC4, RC7YC4 BKR6E-11
Use standard type spark plug for normal condition.
The hot type spark plug is suitable when fouling may occur with
the standard type spark plug such as:

frequent engine starts

low ambient temperatures
The cold type spark plug is suitable when spark knock may occur
with the standard type spark plug such as:

extended highway driving

frequent high engine revolution
4. Check spark plug gap.
Gap: 1.0 - 1.1 mm (0.039 - 0.043 in)
5. Install spark plugs. Reinstall ignition coils.
Spark plug:
: 20-29N·m (2.0 - 3.0 kg-m, 14 - 22 ft-lb)
SMA229B 2/3 turn
SEM870F
.Ignition coils
SMA294A Wrench with a magnet to
hold spark plug
16 mm
(0.63 in)
SMA476 Side electrode
Gap
ENGINE MAINTENANCEQG
Changing Engine Oil Filter (Cont’d)
MA-25

Changing Engine Oil Filter
1. Remove oil filter with Tool.
WARNING:
Be careful not to burn yourself, as the engine and the engine
oil are hot.
2. Clean the oil filter mounting surface on cylinder block. Coat
the rubber seal of the new oil filter with engine oil.
3. Screw in the oil filter until a slight resistance is felt, then
tighten an additional 2/3 turn.
4. Add engine oil.
Refer to“Changing Engine Oil”, MA-34.

Clean excess oil from engine.
Checking and Changing Spark Plugs
1. Disconnect ignition wires from spark plugs at boot. Do not
pull on the wire.
2. Remove spark plugs with spark plug wrench.
3. Check insulator for cracks or chips, gasket for damage or
deterioration and electrode for wear and burning. If exces-
sively worn, replace with new spark plugs.
Spark plug
Make NGK
Standard type BKR6EY-11
Hot type—
Cold type—
NMA041 Loosen
.KV10115800
.SR20DE engine model
SMA010
SMA229B 2/3 turn
SMA273C OKNG
SMA294A Wrench with a magnet to
hold spark plug
16 mm
(0.63 in)
ENGINE MAINTENANCESR20DE
MA-35