2003 NISSAN ALMERA N16 oil pressure

NJMA0036
Shown below are Pre-delivery Inspection Items required for the new vehicle. It is recommended that
necessary items other than those listed here be added, paying due regard tothe conditions in each
country.
Perform applicable items on each model. Consult text of this section for specifications.
UNDER HOOD — engine off
Radiator coolant level and coolant hose connections for leaks
Battery fluid level, specific gravity and conditions of battery terminals
Drive belts tension
Fuel filter for water or dusts (Diesel only), and fuel lines and connections for leaks
Engine oil level and oil leaks
Clutch and brake reservoir fluid level and fluid lines for leaks
Windshield and rear window washer and headlamp cleaner reservoir fluid level
Power steering reservoir fluid level and hose connections for leaks
ON INSIDE AND OUTSIDE
Remove front spring/strut spacer (If applicable)
Operation of all instruments, gauges, lights and accessories
Operation of horn(s), wiper and washer
Steering lock for operation
Check air conditioner for gas leaks
Front and rear seats, and seat belts for operation
All moldings, trims and fittings for fit and alignment
All windows for operation and alignment
Hood, trunk lid, door panels for fit and alignment
Latches, keys and locks for operation
Weatherstrips for adhesion and fit
Headlamp aiming
Tighten wheel nuts (Inc. inner nuts if applicable)
Tire pressure (Inc. spare tire)
Check front wheels for toe-in
Install clock/voltmeter/room lamp fuse (If applicable)
Install deodorizing filter to air conditioner (If applicable)
Remove wiper blade protectors (If applicable)
UNDER BODY
Manual transmission/transaxle, transfer and differential gear oil level
Brake and fuel lines and oil/fluid reservoirs for leaks
Tighten bolts and nuts of steering linkage and gear box, suspension, propeller shafts and drive shafts
Tighten rear body bolts and nuts (Models with wooden bed only)
ROAD TEST
Clutch operation
Parking brake operation
Service brake operation
Automatic transmission/transaxle shift timing and kickdown
Steering control and returnability
Engine performance
Squeaks and rattles
ENGINE OPERATING AND HOT
Adjust idle speed
Automatic transmission/transaxle fluid level
Engine idling and stop knob operation (Diesel only)
FINAL INSPECTION
Install necessary parts (outside mirror, wheel covers, seat belts, mat, carpet or mud flaps)
Inspect for interior and exterior metal and paint damage
Check for spare tire, jack, tools (wheel chock), and literature
Wash, clean interior and exterior
: Not applicable to this model
PRE-DELIVERY INSPECTION ITEMS
MA-2

NJMA0004
General maintenance includes those items which should be checked during the normal day-to-day operation
of the vehicle. They are essential if the vehicle is to continue operating properly. The owners can perform the
checks and inspections themselves or they can have their NISSAN dealers dothem for a nominal charge.
OUTSIDE THE VEHICLE
The maintenance items listed here should be performed from time to time, unless otherwise specified.
Item Reference page
TiresCheck the pressure with a gauge periodically when at a service station,
including the spare, and adjust to the specified pressure if necessary. Check
carefully for damage, cuts or excessive wear.—
Windshield wiper
bladesCheck for cracks or wear if not functioning correctly. —
Doors and engine
hoodCheck that all doors, the engine hood, the trunk lid and back door operate
properly. Also ensure that all latches lock securely. Lubricate if necessary.
Make sure that the secondary latch keeps the hood from opening when the
primary latch is released.
When driving in areas using road salt or other corrosive materials, check for
lubrication frequently.BT-7
BT-16
Tire rotationTires should be rotated every 10,000 km (6,000 miles). SU-7
INSIDE THE VEHICLE
The maintenance items listed here should be checked on a regular basis, such as when performing periodic maintenance, cleaning the
vehicle, etc.
Item Reference page
LampsMake sure that the headlamps, stop lamps, tail lamps, turn signal lamps,
and other lamps are all operating properly and installed securely. Also check
headlamp aim.—
Warning lamps and
chimesMake sure that all warning lamps and buzzers/chimes are operating prop-
erly.—
Steering wheelCheck that it has the specified play.
Check for changes in the steering conditions, such as excessive free play,
hard steering or strange noises.
Free play: Less than 35 mm (1.38 in)—
Seat beltsCheck that all parts of the seat belt system (e.g. buckles, anchors, adjusters
and retractors) operate properly and smoothly, and are installed securely.
Check the belt webbing for cuts, fraying, wear or damage.RS-4
UNDER THE HOOD AND VEHICLE
The maintenance items listed here should be checked periodically e.g. each time you check the engine oil or refuel.
Item Reference page
Windshield washer
fluidCheck that there is adequate fluid in the tank. —
Engine coolant levelCheck the coolant level when the engine is cold. LC-18, LC-43
Engine oil levelCheck the level after parking the vehicle (on level ground) and turning off
the engine.LC-8, LC-30
Brake and clutch
fluid levelsMake sure that the brake and clutch fluid levels are between the “MAX” and
“MIN” lines on the reservoir.BR-7
BatteryCheck the fluid level in each cell. It should be between the “MAX” and “MIN”
lines.—
GI
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MT
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AX
SU
BR
ST
RS
BT
HA
SC
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IDX
GENERAL MAINTENANCE
MA-3

EM-26
[QG]
FUEL INJECTOR AND FUEL TUBE
FUEL INJECTOR AND FUEL TUBE
PFP:16600
Removal and InstallationEBS00LQ9
CAUTION:
●Apply new engine oil when installing the parts that specified to do so in the figure.
●Do not remove or disassembly parts unless instructed as shown in the figure.
REMOVAL
1. Release fuel pressure. Refer to EC-34, "FUEL PRESSURE RELEASE" (WITH EURO-OBD), EC-427,
"FUEL PRESSURE RELEASE" (WITHOUT EURO-OBD).
2. Disconnect harness for fuel injector, and move it aside.
3. Remove fuel hose.
CAUTION:
After removal, install blind plug to fuel hose to prevent the fuel from draining.
4. Remove fuel tube and injector assembly with the following pro-
cedure:
a. Loosen mounting bolts in reverse order shown in figure.
b. Pull out fuel injector/fuel tube assembly toward engine rear side.
YEM051
1. Fuel tube 2. Fuel feed hose 3. O-ring
4. Clip 5. Fuel injector 6. Intake manifold
PBIC0617E

CAMSHAFT
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c. Confirm mating marks stamped on intake and exhaust sprockets
are located as shown.
●If not, rotate crankshaft pulley as shown and align them.
d. Referring to mating marks on intake and exhaust camshaft
sprockets, put paint mating marks on timing chain links.
4. Set intake camshaft sprocket to most advanced position.
CAUTION:
Removal/installation of intake camshaft sprocket is required to maintain most advanced position
because of following reasons. Therefore, follow procedure exactly.
●Sprocket and vane (camshaft in front) rotate and become
offset within specific angle range.
●When engine is stationary, vane is located at most
retarded position. Vane is fixed to sprocket by internal
lock pin. Therefore, it does not rotate.
●If camshaft sprocket mounting bolts are turned under
above circumstance, lock pin will be damaged by lateral
load (shear stress). It may cause non-standard operation.
●Set intake camshaft sprocket to most advanced position as
follows.
NOTE:
“Rotating direction” means direction viewed from engine front side.
CAUTION:
Do not remove chain tensioner before performing this step.
a. Using a wrench, hold hexagonal part so that intake camshaft
does not move.
b. Using an air gun, apply air pressure to intake valve timing con-
trol solenoid valve advanced side oil passage on top surface of
No. 1 camshaft bracket.
●Keep applying air pressure until step “d” is completed.
CAUTION:
●Be careful not to damage oil passage from interference of
air gun tip.
●Thoroughly wipe off oil before applying air pressure.
When applying air pressure, cover around air gun using a rag. Wear protective glasses if neces-
sary.
MBIB0194E
MBIB0195E
MBIB0196E
Compression pressure
: 300 kPa (3.00 bar, 3.06 kg/cm
2 , 43.5 psi) or more
MBIB0197E

CYLINDER HEAD
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CYLINDER HEADPFP:11041
On-Vehicle ServiceEBS00LQH
CHECKING COMPRESSION PRESSURE
1. Warm up engine thoroughly. Then, stop it.
2. Release fuel pressure. Refer to EC-34, "
FUEL PRESSURE RELEASE" (WITH EURO-OBD), EC-427,
"FUEL PRESSURE RELEASE" (WITHOUT EURO-OBD).
3. Remove ignition coil and spark plug from each cylinder.
Refer to IGNITION COIL EM-24, "
Removal and Installation" and SPARK PLUG EM-25, "Removal and
Installation" .
4. Connect engine tachometer (not required in use of CONSULT-II).
5. Disconnect fuel injector harness connector so that no fuel is injected.
6. Install compression tester with adapter onto spark plug hole.
●Use compression gauge whose picking up end inserted to spark
plug hole is smaller than 20 mm (0.79 in) in diameter. Otherwise,
it may be caught by cylinder head during removal.
7. With accelerator pedal fully depressed, turn ignition switch to
“START” for cranking. When the gauge pointer stabilizes, read
the compression pressure and engine rpm. Perform these steps
to check each cylinder.
Compression pressure
[kPa (bar, kg/cm2 , psi)/rpm]
CAUTION:
Always use a fully changed battery to obtain specified engine speed.
●If the engine speed is out of specified range, check battery liquid for proper gravity. Check engine speed
again with normal battery gravity.
●If compression pressure is below minimum value, check valve clearances and parts associated with com-
bustion chamber (Valve, valve seat, piston, piston ring, cylinder bore, cylinder head, cylinder head gas-
ket). After the checking, measure compression pressure again.
●If some cylinders have low compression pressure, pour small amount of engine oil into the spark plug hole
of the cylinder to re-check it for compression.
–If the added engine oil improves the compression, the piston rings may be worn out or damaged. Check
the piston rings and replace if necessary.
–If the compression pressure remains at low level despite the addition of engine oil, the valves may be mal-
functioning. Check the valves for damage. Replace the valve or valve seat accordingly.
●If two adjacent cylinders have respectively low compression pressure and their compression remains low
even after the addition of engine oil, the gaskets are leaking. In such a case, replace the cylinder head
gaskets.
KBIA1402E
Engine type QG15DE QG18DE
Standard1,372 (13.72, 13.99,
198.9)1,324 (13.24, 13.5, 192)
Limit 1,176 (11.76, 12.0, 170.5) 1,128 (11.28, 11.5, 164)
Difference limit among
cylinders98 (0.98, 1.0, 14) 98 (0.98, 1.0, 14)SEM387C

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CYLINDER HEAD
8. Install spark plug, ignition coil and harness connectors.
Removal and InstallationEBS00LQI
REMOVAL
1. Release fuel pressure. Refer to EC-34, "FUEL PRESSURE RELEASE" (WITH EURO-OBD), EC-427,
"FUEL PRESSURE RELEASE" (WITHOUT EURO-OBD).
2. Remove undercover.
3. Drain engine coolant. Refer to LC-17, "Changing Engine Coolant".
4. Remove the following components and related parts:
●Intake manifold and intake manifold collector. Refer to EM-16, "INTAKE MANIFOLD" .
●Exhaust manifold and catalytic converter. Refer to EM-19, "EXHAUST MANIFOLD AND CATALYTIC
CONVERTER" .
●Ignition coil. Refer to EM-24, "IGNITION COIL" .
●Rocker cover. Refer to EM-29, "ROCKER COVER" .
●Camshaft. Refer to EM-32, "CAMSHAFT" .
●Alternator bracket. Refer to SC-33, "Removal and Installation".
PBIC0972E
1. Rear engine slinger 2. Cylinder head bolt 3. Washer
4. Auxiliary bolt of cylinder head 5. Cylinder head gasket 6. Cylinder head assembly

CYLINDER HEAD
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VALVE GUIDE CLEARANCE
Perform this inspection before removing valve guide.
1. Make sure that the valve stem diameter is within the specification.
2. Push the valve out by approx. 15 mm (0.59 in) toward the combustion chamber side to measure the
valve's run-out volume (in the direction of dial gauge) with dial gauge.
3. The half of the run-out volume accounts for the valve guide clearance.
VALVE GUIDE REPLACEMENT
When valve guide is removed, replace with oversized [0.2 mm (0.008 in)] valve guide.
1. To remove valve guide, heat cylinder head to 110 to 130°C (230
to 266°F) by soaking in heated oil.
2. Drive out valve guide with a press [under a 20 kN (2 ton, 2.2 US
ton, 2.0 lmp ton) pressure] or hammer and suitable tool.
3. Ream cylinder head valve guide hole.Standard
Intake : 0.020 - 0.050 mm (0.0008 - 0.0020 in)
Exhaust : 0.040 - 0.070 mm (0.0016 - 0.0028 in)
PBIC0077E
SEM008A
SEM931C
Valve guide hole diameter (for service parts):
Intake and exhaust
: 9.685 - 9.696 mm (0.3813 - 0.3817 in) dia.
SEM932C

CYLINDER HEAD
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2. Ream cylinder head recess diameter for service valve seat.
●Be sure to ream in circles concentric to the valve guide center.
●This will enable valve seat to fit correctly.
3. Heat cylinder head to 110 to 130°C (230 to 266°F) by soaking in
heated oil.
4. Provide valve seats cooled well with dry ice. Force fit valve seat
into cylinder head.
CAUTION:
●Avoid directly to touching cold valve seats.
●Cylinder head contains heat. When working, wear protec-
tive equipment to avoid getting burned.
5. Using valve seat cutter set (commercial service tool) or valve
seat grinder, finish the seat to the specified dimensions.
CAUTION:
When using valve seat cutter, firmly grip the cutter handle
with both hands. Then, press on the contacting surface all
around the circumference to cut in a single drive. Improper
pressure on with the cutter or cutting many different times
may result in stage valve seat.Oversize [0.5 mm (0.020 in)]:
Intake : 31.5 mm (1.240 in)
Exhaust : 26.5 mm (1.043 in)
SEM795A
SEM008A
PBIC0579E
SEM934C