2003 NISSAN ALMERA N16 reverse

EM-44
[QG]
CAMSHAFT
●Thickness of a new valve lifter can be identified by stamp
marks on the reverse side (inside the cylinder).
Stamp mark 696 indicates 6.96 mm (0.2740 in) in thickness.
Available thickness of valve lifter: 26 sizes with range 6.96 to 7.46 mm (0.2740 to 0.2937 in) in steps of 0.02
mm (0.0008 in) (when manufactured at factory).
5. Install the selected valve lifter.
6. Install camshaft.
7. Manually turn crankshaft pulley a few turns.
8. Check that valve clearances for cold engine are within specifications by referring to the specified values.
9. After completing the repair, check valve clearances again with the specifications for warmed engine. Make
sure the values are within specifications.
Valve clearance:
Unit: mm (in)
*: Approximately 20°C (68°F)
ADJUSTMENT (SHIM TYPE)
●Remove adjusting shim for valves with incorrect valve clearance by following the procedure below:
1. Using a rag, completely wipe off engine oil from surroundings of adjusting shim.
2. When removing adjusting shim from a cam, turn crankshaft
clockwise (viewed from front) to make cam nose face straight
up.
3. Turn valve lifter and adjusting shim to removal direction.
●Using a slotted screwdriver with extra-thin tip, turn valve lifter
cutout in direction shown by the arrow.
4. Using camshaft pliers (special service tool), pinch camshaft.
Turn tool up in direction shown by the arrow with camshaft being
a fulcrum. This will push down adjusting shim to allow valve
spring to be compressed.
CAUTION:
●Be careful not to damage camshaft and cylinder head.
●Be careful not to damage surroundings of valve lifter.
PBIC1077E
Cold* (reference data) Hot
Intake 0.24 - 0.32 (0.009 - 0.013) 0.32 - 0.40 (0.013 - 0.016)
Exhaust 0.26 - 0.34 (0.010 - 0.013) 0.33 - 0.41 (0.013 - 0.016)
MBIB0226E
KBIA1391J

TIMING CHAIN
EM-53
[QG]
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h. Install front cover with mounting bolts temporarily so that front
cover will not move.
i. Press fit dowel pin into cylinder block through front cover.
j. Tighten front cover mounting bolts temporarily.
●A [M6 x 20 mm (0.79 in)], B [M6 x 40 mm (1.57 in)], C [M8 x
70 mm (2.76 in)], D [M6 x 73 mm (2.87 in)]
●Bolt C also secures power steering pump adjusting bar.
●Bolt E [M6 x 12 mm (0.47 in)] is for installing power steering
pump adjusting bar.
k. Tighten cylinder head auxiliary bolts (M6) temporarily.
l. Tighten front cover mounting bolts and cylinder head auxiliary
bolts to specified torque.
4. Install oil pump drive spacer.
●When installing, align with flat of oil pump inner rotor.
●If they are not aligned, rotate inner rotor with a flat-bladed
screwdriver to align them.
CAUTION:
Be careful not to damage oil seal lips.
5. Install water pump pulley and idler pulley bracket assembly.
6. Install crankshaft pulley.
●When installing it, make sure that front oil seal lip is not inverted and garter spring is in position.
●For direction of mounting bolt washer, refer to “Component Parts Location”.
●With same procedure as “removal”, secure crankshaft, and tighten mounting bolts.
7. Install cylinder head front cover.
●Apply liquid gasket to cylinder head front cover.
●Use Genuine Liquid Gasket or equivalent.
8. Install engine front mounting bracket.
9. Install remaining parts in the reverse order of removal.
INSPECTION AFTER INSTALLATION
●In order to allow liquid gasket to be cured, perform inspection at least 30 minutes after the last step in
which parts sealed with liquid gasket are installed.
●With engine warmed up, check each part for engine oil leakage.
PBIC0564E
EMD0850D
PBIC0566E
PBIC0968E

EM-54
[QG]
OIL SEAL
OIL SEAL
PFP:00100
Removal and Installation of Valve Oil SealEBS00LQE
REMOVAL
1. Remove camshaft. Refer to EM-32, "CAMSHAFT" .
2. Remove adjusting shim (if so equipped) and valve lifters. Refer
to EM-32, "
CAMSHAFT" .
3. To prevent valve from falling inside cylinder, turn crankshaft until
cylinder with oil seal to be removed is at top dead center.
CAUTION:
When rotating crankshaft, be careful that timing chain is not
caught by front cover.
4. Using valve spring compressor (special service tool), remove valve collet. Then remove valve spring and
valve spring retainer.
5. Remove valve oil seal using valve oil seal puller (special service
tool).
INSTALLATION
1. Apply engine oil on new valve oil seal joint and seal lip.
2. Using valve oil seal drift (special service tool), press fit valve oil
seal to height shown in figure.
3. Perform steps in the reverse order of removal for the following
operations.
SEM914F
SEM909F
SEM910F

OIL SEAL
EM-55
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Removal and Installation of Front Oil SealEBS00LQF
REMOVAL
1. Remove the following parts:
●Undercover (with splash cover)
●Drive belt; Refer to EM-11, "DRIVE BELTS" .
●Crankshaft pulley; Refer to EM-47, "TIMING CHAIN" .
2. Using flat-head screwdriver, remove front oil seal.
CAUTION:
Be careful not to damage front timing chain cover and crankshaft.
INSTALLATION
1. Apply engine oil on new front oil seal.
2. Using a suitable drift, press fit until the height of front oil seal is
level with the mounting surface.
●Suitable drift : outer diameter 50 mm (1.97 in), inner diameter
44 mm (1.73 in).
CAUTION:
●Be careful not to damage front cover and crankshaft.
●Press oil seal straight so that it is not curling up or
inclined.
3. Perform steps in the reverse order of removal for the following
operations.
Removal and Installation of Rear Oil SealEBS00LQG
REMOVAL
1. Remove transaxle assembly. Refer to MT-23, "Removal" (RS5F30A), MT-23, "Removal" (RS5F70A) and
AT-411, "Removal" (AUTOMATIC TRANSAXLE).
2. Remove drive plate. Refer to EM-70, "
CYLINDER BLOCK" .
3. Using flat-head screwdriver, remove front oil seal.
CAUTION:
Be careful not to damage mounting surface.
INSTALLATION
1. Using a suitable drift, press rear oil seal to rear oil seal retainer.
●Suitable drift : outer diameter 102 mm (4.02 in), inner diame-
ter 90 mm (3.54 in).
CAUTION:
●Do not touch grease applied on oil seal lip
●Be careful not to damage rear oil seal retainer and crank-
shaft.
●Press in straight to avoid causing any burrs or tilting of
oil seal.
SEM912F
SEM715A
SEM097F

EM-56
[QG]
OIL SEAL
●Press rear oil seal into rear oil seal retainer so that is
does not project from the end.
2. Perform steps in the reverse order of removal for the following operations.
KBIA1401E

CYLINDER HEAD
EM-59
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5. Remove cylinder head loosening bolts in reverse order shown in
the figure.
6. Remove cylinder head gasket.
INSTALLATION
1. Apply liquid gasket to positions shown in figure, then install cyl-
inder head gasket.
●Use Genuine Liquid Gasket or equivalent.
2. Install cylinder head assembly, tighten bolts (1) to (10) in numer-
ical order shown in figure with the following procedure:
CAUTION:
In step “d”, loosen bolts in the reverse order of that indi-
cated in figure.
a. Apply new engine oil to threads and seating surface of mounting
bolts.
b. Tighten all bolts to 29.4 N·m (3.0 kg-m, 22 ft-lb).
c. Tighten all bolts to 58.8 N·m (6.0 kg-m, 43 ft-lb).
d. Completely loosen to 0 N·m (0 kg-m, 0 ft-lb).
e. Tighten all bolts to 27.4 - 31.4 N·m (2.8 to 3.2 kg-m, 21 to 23 ft-
lb).
f. Turn all bolts 50 to 55 degrees (target: 50 degrees) clockwise.
CAUTION:
Check and confirm the tightening angle by using angle
wrench (special service tool). Avoid judgment by visual
inspection without the tool.
SEM900F
PBIC0573E
SEM900F
PBIC0574E

ENGINE ASSEMBLY
EM-69
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●Center member
●Front exhaust tube
●Stabilizer bar
●Cooling fan
●Radiator
●Disconnect wires, harness, pipes, hoses and so on.
10. Lift up engine slightly and disconnect or remove all engine
mountings.
When lifting engine, be sure to clear surrounding parts. Use
special care near brake tubes and brake master cylinder.
11. Remove engine with transaxle as shown.
INSTALLATION
●Install in reverse order of removal.
SEM108G
SEM420D

EM-74
[QG]
CYLINDER BLOCK
c. Push out piston pin with stick of outer diameter approximately 17
mm (0.67 in).
15. Remove main bearing cap bolts.
●Loosen main bearing cap bolts in several steps in reverse
order shown in the figure, and remove them.
●Measure crankshaft side clearance before loosening main
bearing cap bolts. Refer to EM-84, "
CRANKSHAFT SIDE
CLEARANCE" .
16. Remove main bearing caps.
●Using main bearing cap bolts as shown, remove center main
bearing cap while shaking it back-and-forth.
●To remove front and rear main bearing caps, lever them off
using screwdriver or similar tool. Or, using a plastic hammer,
tap them back-and-forth.
CAUTION:
Using shop cloth or wooden block, protect oil pan mount-
ing surface on cylinder block, so that mounting surface is
not damaged.
PBIC0262E
SEM933F
EMD0879D
EMD0222D