2001 NISSAN ALMERA N16 lock

NJEM0005
NVH Troubleshooting Ð Engine NoiseNJEM0005S01Use the chart below to help you find the cause of the symptom.
1. Locate the area where noise occurs.
2. Confirm the type of noise.
3. Specify the operating condition of engine.
4. Check specified noise source.
If necessary, repair or replace these parts.
Location of
noiseType of
noiseOperating condition of engine
Source of
noiseCheck itemReference
page Before
warm-
upAfter
warm-
upWhen
start-
ingWhen
idlingWhen
racingWhile
driving
To p o f
Engine
Rocket
Cover Cyl-
inder HeadTicking or
clickC A Ð A B Ð Tappet
noise+Valve clearance EM-42
Rattle C A Ð A B C Camshaft
bearing
noise+Camshaft journal
clearance
+Camshaft runoutEM-37
Crankshaft
Pulley
Cylinder
block (Side
of Engine)
Oil panSlap or
knockÐ A Ð B B Ð Piston pin
noise+Piston and piston pin
clearance
+Connecting rod bush-
ing clearanceEM-54, 59
Slap or
rapA Ð Ð B B A Piston slap
noise+Piston-to-bore clear-
ance
+Piston ring side clear-
ance
+Piston ring end gap
+Connecting rod bend
and torsionEM-54, 55,
56
Knock A B CB B B Connecting
rod-bearing
noise+Connecting rod bear-
ing clearance (Big
end)
+Connecting rod bush-
ing clearance (Small
end)EM-58, 59
Knock A B Ð A B C Main bear-
ing noise+Main bearing oil clear-
ance
+Crankshaft runoutEM-57
Front of
Engine Tim-
ing Chain
CoverTapping or
tickingAAÐBBBTiming
chain and
chain ten-
sioner noise+Timing chain cracks
and wear
+Timing chain tensioner
operationEM-26
Front of
EngineSqueak or
fizzingA B Ð B Ð C Other drive
belts (stick-
ing or slip-
ping)+Drive belts deflection EM-15
CreakingABABABOther drive
belts (slip-
ping)+Idler pulley bearing
operation
Squall or
creakABÐBABWater pump
noise+Water pump operation LC-14
A: Closely related B: Related C: Sometimes related Ð: Not related
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTINGQG
NVH Troubleshooting Ð Engine Noise
EM-9

SEM071FA
SEM110G
6. Remove engine gussets.
Refer to MT-24 or AT-347, ªInstallationº.
7. Remove rear plate cover (A/T models).
SEM365EB
8. Remove oil pan.
a. Insert Tool between cylinder block and oil pan.
1)Be careful not to damage aluminum mating face.
Do not insert screwdriver, or oil pan flange will be dam-
aged.
b. Slide Tool by tapping on the side of the Tool with a hammer.
SEM295C
InstallationNJEM00101. Use a scraper to remove old liquid gasket from mating surface
of oil pan.
+Also remove old liquid gasket from mating surface of cyl-
inder block.
SEM015E
2. Apply a continuous bead of liquid gasket to mating surface of
oil pan.
+Use Genuine Liquid Gasket or equivalent.
+Apply to groove on mating surface.
+Allow 7 mm (0.28 in) clearance around bolt holes.
OIL PANQG
Removal (Cont'd)
EM-20

ComponentsNJEM0011
YEM012
1. Chain tensioner
2. Camshaft sprocket (Intake)
3. Camshaft sprocket (Exhaust)
4. O-ring
5. Slack side timing chain guide
6. Timing chain tension guide7. Timing chain
8. Crankshaft sprocket
9. Oil pump drive spacer
10. Front cover
11. O-ring
12. Oil seal13. Crankshaft pulley
14. Cylinder head front cover
15. Camshaft position sensor
(PHASE)
16. Cylinder block dowels
TIMING CHAINQG
Components
EM-22

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

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

SEM886F
InstallationNJEM01071. Install crankshaft sprocket on crankshaft.
+Make sure mating marks on crankshaft sprocket face front
of engine.
SEM890F
2. Position crankshaft so that No. 1 piston is at TDC and key way
is at 12 o'clock.
SEM891F
3. Install slack side timing chain guide and timing chain tension
guide.
SEM892F
4. Install timing chain on crankshaft sprocket.
+Support chain with a suitable tool to keep the mating mark
aligned.
+Set timing chain by aligning its mating mark with that on
the crankshaft sprocket.
+Make sure sprocket's mating mark faces engine front.
SEM905F
5. Install camshaft sprocket.
+Set timing chain by aligning mating marks with those of
camshaft sprockets.
TIMING CHAINQG
Installation
EM-27

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

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