2001 NISSAN ALMERA N16 check oil

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

CheckingNJEM0042
SEM100G
1. Inspect for cracks, fraying, wear or oil adhesion. If necessary,
replace with a new one.
+When replacing belt, make sure the new belt has the same
number of ribs as the old one.
2. Inspect drive belt deflections by pushing on the belt midway
between pulleys.
3. Turn crankshaft two revolutions and recheck drive belt deflec-
tion.
+Inspect drive belt deflection when engine is cold.
+Adjust if belt deflections exceed the limit.
DRIVE BELTSQG
Checking
EM-15

Belt deflection:
Unit: mm (in)
Applied engineUsed belt deflection
Deflection
of new belt
LimitDeflection
after
adjustment
AlternatorWith air
conditioner
compressorQG15´18DE 8.1 (0.319)5.3 - 5.7
(0.209 -
0.224)4.5 - 5.0
(0.177 -
0.197)
Without air
conditioner
compressorQG15´18DE10.2
(0.402)6.5 - 7.0
(0.256 -
0.276)5.5 - 6.1
(0.217 -
0.240)
Power steering oil
pumpQG15DE 8.5 (0.335)5.2 - 5.8
(0.205 -
0.228)4.6 - 5.2
(0.181 -
0.205)
QG18DE 7.1 (0.280)4.4 - 4.9
(0.173 -
0.193)3.9 - 4.4
(0.154 -
0.173)
Applied pushing force 98 N (10 kg, 22 lb)
Inspect drive belt deflections when engine is cold.
DRIVE BELTSQG
Checking (Cont'd)
EM-16

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

SEM104G
27. Remove RH engine mounting bracket.
28. Remove idler pulley and bracket.
SEM883F
29. Remove water pump pulley and water pump.
30. Remove front cover bolts and front cover as shown.
H1: Located on water pump
H2: Located on power steering pump adjusting bar
+Inspect for oil leakage at front oil seal. Replace seal if oil leak
is present.
SEM884F
SEM897F
31. Remove timing chain.
32. Remove oil pump drive spacer.
33. Remove chain guides.
34. Remove crankshaft sprocket.
35. Remove O-rings from cylinder block and front cover.
SEM885F
InspectionNJEM0106Check for cracks and excessive wear at roller links. Replace
if necessary.
TIMING CHAINQG
Removal (Cont'd)
EM-26

SEM519G
6. Install camshaft sprocket bolts and tighten them to correct
torque.
+Apply new engine oil to bolt threads and seat surface.
SEM520G
7. Install chain tensioner.
+Before installing chain tensioner, insert a suitable pin into
pin hole of chain tensioner.
+After installing chain tensioner, remove the pin.
8. Install timing chain guide.
SEM893F
9. Install O-rings to cylinder block.
SEM894F
10. Before installing front cover, remove all traces of liquid gasket
from mating surface using a scraper.
+Also remove traces of liquid gasket from mating surface of
cylinder block.
SEM677G
11. Apply a continuous bead of liquid gasket to mating surface of
front cover.
+Check alignment of mating marks on chain and crankshaft
sprocket.
+Align oil drive spacer with oil pump.
+Place timing chain to the side of chain guide. This pre-
vents the chain from making contact with water seal area
of front cover.
TIMING CHAINQG
Installation (Cont'd)
EM-28

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

SEM878F
22. Remove cylinder head bolts.
23. Remove cylinder head with manifolds.
+Head warpage or cracking could result from removing in
incorrect order.
+Cylinder head bolts should be loosened in two or three
steps.
SEM914F
DisassemblyNJEM00181. Remove valve components with Tool.
2. Remove valve oil seal with a suitable tool.
SEM915F
InspectionNJEM0019CYLINDER HEAD DISTORTIONNJEM0019S01+Clean surface of cylinder head.
+Use a reliable straightedge and feeler gauge to check the flat-
ness of cylinder head mating surface.
+Check along six positions shown in figure.
Head surface flatness:
Standard: Less than 0.03 mm (0.0012 in)
Limit: 0.1 mm (0.004 in)
If beyond the specified limit, replace or resurface it.
Resurfacing limit:
The limit for cylinder head resurfacing is determined by the
amount of cylinder block resurfacing.
Amount of cylinder head resurfacing is ªAº.
Amount of cylinder block resurfacing is ªBº.
The maximum limit is as follows:
A + B = 0.2 mm (0.008 in)
After resurfacing cylinder head, check that camshaft rotates freely
by hand. If resistance is felt, replace cylinder head.
Nominal cylinder head height:
117.8 - 118.0 mm (4.638 - 4.646 in)
CAMSHAFT VISUAL CHECKNJEM0019S02Check camshaft for scratches, seizure and wear.
CYLINDER HEADQG
Removal (Cont'd)
EM-36