NISSAN ALMERA N16 2001 Electronic Repair Manual

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

SEM872F
12. Set No. 1 piston at TDC on its compression stroke.
SEM873F
+Rotate crankshaft until mating mark on camshaft sprocket
is set at position indicated in figure at left.
SEM874F
13. Remove camshaft position sensor (PHASE).
+Do not allow any magnetic materials to contact the cam-
shaft position sensor (PHASE).
+Be careful not to damage sensor.
14. Remove cylinder head front cover.
SEM875F
15. Remove timing chain guide from camshaft bracket.
16. Attach a suitable stopper pin to chain tensioner.
17. Remove chain tensioner.
SEM876F
18. Remove camshaft sprocket bolts.
+Apply paint to timing chain and cam sprockets for align-
ment during installation.
19. Remove camshaft sprockets.
TIMING CHAINQG
Removal (Cont'd)
EM-24

SEM008G
20. Remove cylinder head bolts at engine front side.
SEM879F
21. Remove oil pan. Refer to EM-19, ªRemovalº.
22. Remove oil strainer.
SEM880F
23. Remove starter motor, and set ring gear stopper using mount-
ing bolt holes.
SEM881F
24. Loosen crankshaft pulley bolt.
25. Remove crankshaft pulley with a suitable puller.
SEM103G
26. Remove RH engine mounting.
TIMING CHAINQG
Removal (Cont'd)
EM-25

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

SEM896F
12. Install front cover.
Bolt No. Tightening torque N´m (kg-m, in-lb) ª!º mm (in)
a. 6.9 - 9.5 (0.70 - 0.97, 61 - 84) 20 (0.79)
b. 6.9 - 9.5 (0.70 - 0.97, 61 - 84) 40 (1.57)
c. 17 - 24 (1.7 - 2.4, 148 - 208*) 70 (2.76)
d. 6.9 - 9.5 (0.70 - 0.97, 61 - 84) 72.8 (2.866)
e. 6.9 - 9.5 (0.70 - 0.97, 61 - 84) 12 (0.47)
*: 12 - 17 ft-lb
SEM897F
+Make sure two O-rings are present.
+Be careful not to damage oil seal when installing front
cover.
SEM009G
13. Install cylinder head bolts at engine front side.
+Tightening procedure
Tightening bolts (1 - 4) to 6.3 to 8.3 N´m (0.64 to 0.85 kg-m,
55.8 to 73.5 in-lb).
SEM945F
14. Install oil pump drive spacer.
SEM104G
15. Install water pump and water pump pulley.
Refer to LC-14, ªWater Pumpº.
16. Install idler pulley and bracket.
17. Install RH engine mounting bracket.
18. Install RH engine mounting.
19. Install oil strainer.
20. Install oil pan. Refer to EM-20, ªInstallationº.
21. Install crankshaft pulley.
22. Remove ring gear stopper.
23. Install starter motor.
TIMING CHAINQG
Installation (Cont'd)
EM-29

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

SEM909F
ReplacementNJEM0015VALVE OIL SEALNJEM0015S011. Remove rocker cover.
2. Remove camshaft.
3. Remove valve spring. Refer to EM-36.
4. Remove valve oil seal with Tool.
Piston concerned should be set at TDC to prevent valve from
falling.
SEM910F
5. Apply new engine oil to new valve oil seal and install it with
Tool.
SEM911F
FRONT OIL SEALNJEM0015S021. Remove the following parts:
+Engine under cover
+RH engine side cover
+Alternator and power steering drive belts
+Crankshaft pulley
2. Remove front oil seal from front cover.
+Be careful not to scratch front cover.
SEM715A
SEM912F
3. Apply new engine oil to new oil seal and install it using a suit-
able tool.
+Install new oil seal in the direction shown.
OIL SEALQG
Replacement
EM-31

SEM096F
REAR OIL SEAL=NJEM0015S031. Remove transaxle. Refer to MT-23 or AT-346, ªREMOVAL AND
INSTALLATIONº.
2. Remove flywheel or drive plate.
3. Remove rear oil seal.
+Be careful not to scratch rear oil seal retainer.
SEM715A
4. Apply new engine oil to new oil seal and install it using a suit-
able tool.
+Install new oil seal in the direction shown.
SEM097F
OIL SEALQG
Replacement (Cont'd)
EM-32