Nissan Almera Tino V10 (2001 year). Manual

Components

NLEM0108

SEM106G

Oil filler cap

Rocker cover

Rocker cover gasket

Intake valve timing control sole-
noid (Models with intake valve tim-
ing control)

Camshaft bracket

Intake camshaft

Exhaust camshaft

Timing chain guide

Cylinder head bolt

10. Shim
11. Valve lifter
12. Valve cotter
13. Valve spring retainer
14. Valve spring

15. Valve spring seat
16. Valve oil seal
17. Valve guide
18. Cylinder head
19. Cylinder head gasket
20. Valve seat
21. Valve

CYLINDER HEAD

Components

EM-33

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

Removal

NLEM0017

Drain engine coolant from radiator and cylinder block.
Be careful not to spill coolant on drive belts.

Release fuel pressure.
Refer to EC-43, “Fuel Pressure Release”.

Remove drive belts.

Remove air duct to intake manifold collector.

Remove front undercovers.

Remove front exhaust tube.

SEM870F

Disconnect vacuum hoses, fuel hoses, water hoses, wires,
harness, connectors and so on.

Remove intake manifold rear supports.

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 HEAD

Components (Cont’d)

EM-34

SEM873F

Rotate crankshaft until mating mark on camshaft sprocket
is set at position indicated in figure at left.

SEM874F

14. 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.

15. Remove cylinder head front cover.

SEM875F

16. Remove timing chain guide from camshaft bracket.
17. Attach a suitable stopper pin to chain tensioner.
18. Remove chain tensioner.

SEM876F

19. Remove camshaft sprocket bolts.

Apply paint to timing chain and cam sprockets for align-
ment during installation.

20. Remove camshaft sprockets.

SEM877F

21. Remove camshaft brackets and camshafts.

Apply I.D. marks to brackets to ensure correct reassembly.

Bolts should be loosened in two or three steps.

CYLINDER HEAD

Removal (Cont’d)

EM-35

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

Disassembly

NLEM0018

Remove valve components with Tool.

Remove valve oil seal with a suitable tool.

SEM915F

Inspection

NLEM0019

CYLINDER HEAD DISTORTION

NLEM0019S01

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 “A”.
Amount of cylinder block resurfacing is “B”.

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 CHECK

NLEM0019S02

Check camshaft for scratches, seizure and wear.

CYLINDER HEAD

Removal (Cont’d)

EM-36

SEM154D

CAMSHAFT RUNOUT

NLEM0019S03

Measure camshaft runout at the center journal.

Runout (Total indicator reading):

Standard

Less than 0.02 mm (0.0008 in)

Limit

0.1 mm (0.004 in)

If it exceeds the limit, replace camshaft.

SEM916F

CAMSHAFT CAM HEIGHT

NLEM0019S04

Measure camshaft cam height.

Standard cam height:

Intake

40.610 - 40.800 mm (1.5988 - 1.6063 in)

Exhaust

40.056 - 40.246 mm (1.5770 - 1.5845 in)

Cam wear limit:

0.20 mm (0.0079 in)

If wear is beyond the limit, replace camshaft.

SEM917F

CAMSHAFT JOURNAL CLEARANCE

NLEM0019S05

Install camshaft bracket and tighten bolts to the specified
torque.

Measure inner diameter of camshaft bearing.

Standard inner diameter:

No. 1 bearing

28.000 - 28.021 mm (1.1024 - 1.1032 in)

No. 2 to No. 5 bearings

24.000 - 24.021 mm (0.9449 - 0.9457 in)

SEM156D

Measure outer diameter of camshaft journal.

Standard outer diameter:

No. 1 journal

27.935 - 27.955 mm (1.0998 - 1.1006 in)

No. 2 to No. 5 journals

23.935 - 23.955 mm (0.9423 - 0.9431 in)

If clearance exceeds the limit, replace camshaft and/or cylin-
der head.

Camshaft journal clearance:

Standard

0.045 - 0.086 mm (0.0018 - 0.0034 in)

Limit

0.15 mm (0.0059 in)

CYLINDER HEAD

Inspection (Cont’d)

EM-37

SEM918F

CAMSHAFT END PLAY

NLEM0019S06

Install camshaft in cylinder head. Refer to EM-45.

Measure camshaft end play.

Camshaft end play:

Standard

0.115 - 0.188 mm (0.0045 - 0.0074 in)

Limit

0.20 mm (0.0079 in)

If limit is exceeded, replace camshaft and remeasure end play.

If limit is still exceeded after replacing camshaft, replace
cylinder head.

SEM919F

CAMSHAFT SPROCKET RUNOUT

NLEM0019S07

Install sprocket on camshaft.

Measure camshaft sprocket runout.

Runout (Total indicator reading):

Limit 0.15 mm (0.0059 in)

If it exceeds the limit, replace camshaft sprocket.

SEM345D

VALVE GUIDE CLEARANCE

NLEM0019S08

Measure valve deflection as shown in figure. (Valve and valve
guide wear the most in this direction.)

Valve deflection limit (Dial gauge reading):

Intake & Exhaust

0.2 mm (0.008 in)

SEM938C

If it exceeds the limit, check valve to valve guide clearance.

Measure valve stem diameter and valve guide inner diameter.

Calculate valve to valve guide clearance.
Valve to valve guide clearance = valve guide inner diam-
eter − valve stem diameter.

Check that clearance is within specification.

CYLINDER HEAD

Inspection (Cont’d)

EM-38

Unit: mm (in)

Standard

Limit

Intake

0.020 - 0.050

(0.0008 - 0.0020)

0.1 (0.004)

Exhaust

0.040 - 0.070

(0.0016 - 0.0028)

0.1 (0.004)

If it exceeds the limit, replace valve and remeasure clearance.

If limit is still exceeded after replacing valve, replace valve
guide.

SEM008A

VALVE GUIDE REPLACEMENT

NLEM0019S09

To remove valve guide, heat cylinder head to 110 to 130°C
(230 to 266°F).

SEM931C

Drive out valve guide with a press [under a 20 kN (2 ton, 2.2
US ton, 2.0 Imp ton) pressure] or hammer and suitable tool.

SEM932C

Ream cylinder head valve guide hole.

Valve guide hole diameter
(for service parts):

Intake & Exhaust

9.685 - 9.696 mm (0.3813 - 0.3817 in)

MEM096A

Heat cylinder head to 110 to 130°C (230 to 266°F) and press
service valve guide into cylinder head.

Projection “L”:

11.5 - 11.7 mm (0.453 - 0.461 in)

CYLINDER HEAD

Inspection (Cont’d)

EM-39

SEM932C

Ream valve guide.

Finished size:

Intake & Exhaust

5.500 - 5.515 mm (0.2165 - 0.2171 in)

SEM934C

VALVE SEATS

NLEM0019S10

Check valve seats for pitting at contact surface. Resurface or
replace if excessively worn.

Before repairing valve seats, check valve and valve guide
for wear. If they have worn, replace them. Then correct
valve seat.

Use both hands to cut uniformly.

SEM795A

REPLACING VALVE SEAT FOR SERVICE PARTS

NLEM0019S11

Bore out old seat until it collapses. Set machine depth stop so
that boring cannot contact the bottom face of seat recess in
cylinder head.

Ream cylinder head recess.

Reaming bore for service valve seat
Oversize [0.5 mm (0.020 in)]:

Refer to SDS, EM-70.

Use the valve guide center for reaming to ensure valve seat
will have the correct fit.

SEM008A

Heat cylinder head to 110 to 130°C (230 to 266°F).

Press fit valve seat until it seats on the bottom.

SEM892B

Cut or grind valve seat using suitable tool to the specified
dimensions as shown in SDS, EM-70.

After cutting, lap valve seat with abrasive compound.

Check valve seating condition.

Seat face angle “

”:

44°53

′

- 45°07

′

Contacting width “W”:

Intake

1.06 - 1.34 mm (0.0417 - 0.0528 in)

Exhaust

1.20 - 1.68 mm (0.0472 - 0.0661 in)

CYLINDER HEAD

Inspection (Cont’d)

EM-40

AEM343

Use a depth gauge to measure the distance “L” between the
mounting surface of the cylinder head spring seat and the
valve stem end. If the distance is shorter than specified, repeat
step 5 above to correct it. If the distance is longer, replace the
valve seat.

Valve seat resurface limit:

Intake

35.95 - 36.55 mm (1.4154 - 1.4390 in)

Exhaust

35.92 - 36.52 mm (1.4142 - 1.4378 in)

SEM188A

VALVE DIMENSIONS

NLEM0019S12

Check dimensions of each valve. Refer to SDS, EM-65 for dimen-
sions.
When valve head has been worn down to 0.5 mm (0.020 in) in
margin thickness, replace valve.
Grinding allowance for valve stem tip is 0.2 mm (0.008 in) or
less.

SEM288A

VALVE SPRING

NLEM0019S13

Squareness

NLEM0019S1301

Measure dimension “S”.

Out-of-square “S”:

Less than 1.80 mm (0.0709 in)

If it exceeds the limit, replace spring.

EM113

Pressure

NLEM0019S1302

Check valve spring pressure at specified spring height.

Pressure:

Standard
370.0 N (37.73 kg, 83.19 lb) at 23.64 mm (0.9307 in)
Limit
More than 347.8 N (35.46 kg, 78.19 lb) at 23.64 mm
(0.9307 in)

If it exceeds the limit, replace spring.

SEM160D

VALVE LIFTER AND VALVE SHIM

NLEM0019S16

Check contact and sliding surfaces for wear or scratches.

CYLINDER HEAD

Inspection (Cont’d)

EM-41

SEM161D

Check diameter of valve lifter and valve lifter guide bore.

Valve lifter outside diameter:

29.960 - 29.975 mm (1.1795 - 1.1801 in)

SEM920F

Lifter guide inside diameter:

30.000 - 30.021 mm (1.1811 - 1.1819 in)

Clearance between valve lifter and valve lifter guide:

0.025 - 0.065 mm (0.0010 - 0.0026 in)

If it exceeds the limit, replace valve lifter or cylinder head which
exceeds the standard diameter tolerance.

SEM921F

Valve Clearance

NLEM0041

CHECKING

NLEM0041S01

Check valve clearance while engine is warm and not running.
1.

Remove rocker cover.

Remove all spark plugs.

Set No. 1 cylinder at TDC on its compression stroke.

Align pointer with TDC mark on crankshaft pulley.

Check that valve lifters on No. 1 cylinder are loose and valve
lifters on No. 4 are tight.

If not, turn crankshaft one revolution (360°) and align as
described above.

SEM922F

Check only those valves shown in the figure.

CYLINDER HEAD

Inspection (Cont’d)

EM-42

SEM139D

Using a feeler gauge, measure clearance between valve lifter
and camshaft.

Record any valve clearance measurements which are out of
specification. They will be used later to determine the required
replacement adjusting shim.

Valve clearance for checking (Hot):

Intake

0.21 - 0.49 mm (0.008 - 0.019 in)

Exhaust

0.30 - 0.58 mm (0.012 - 0.023 in)

SEM923F

Turn crankshaft one revolution (360°) and align mark on crank-
shaft pulley with pointer.

Check only those valves shown in the figure.

Use the same procedure as mentioned in step 4.

If all valve clearances are within specification, install the fol-
lowing parts:

Rocker cover

All spark plugs

SEM941F

ADJUSTING

NLEM0041S02

Adjust valve clearance while engine is cold.
1.

Turn crankshaft. Position cam lobe upward on camshaft for
valve that must be adjusted.

Place Tool (A) around camshaft as shown in figure.

Before placing Tool (A), rotate notch toward center of cylinder
head. (See figure.) This will simplify shim removal later.

CAUTION:

Be careful not to damage cam surface with Tool (A).

SEM924F

Rotate Tool (A) so that valve lifter is pushed down.

SEM925F

Place Tool (B) between camshaft and valve lifter to retain valve
lifter.

CAUTION:

Tool (B) must be placed as close to camshaft bracket as
possible.

Be careful not to damage cam surface with Tool (B).

Remove Tool (A).

CYLINDER HEAD

Valve Clearance (Cont’d)

EM-43

SEM144D

SEM145D

Remove adjusting shim using a small screwdriver and a mag-
netic finger.

Determine replacement adjusting shim size using the following
formula.

Use a micrometer to determine thickness of removed shim.

Calculate thickness of new adjusting shim so valve clearance
comes within specified values.
R = Thickness of removed shim
N = Thickness of new shim
M = Measured valve clearance

Intake:

N = R + [M − 0.37 mm (0.0146 in)]

Exhaust:

N = R + [M − 0.40 mm (0.0157 in)]

Shims are available in 50 sizes from 2.00 mm (0.0787 in) to 2.98
mm (0.1173 in), in steps of 0.02 mm (0.0008 in).

AEM236

Select the closest size shim to the calculated thickness. Refer
to chart in SDS, EM-67.

SEM146D

Install new shim using a suitable tool.

Install with the surface on which the thickness is stamped
facing down.

SEM147D

Place Tool (A) as explained in steps 2 and 3.

10. Remove Tool (B).
11. Remove Tool (A).
12. Recheck valve clearance.
Valve clearance:

CYLINDER HEAD

Valve Clearance (Cont’d)

EM-44

Unit: mm (in)

For adjusting

For checking

Hot

Cold* (reference

data)

Hot

Intake

0.32 - 0.40

(0.013 - 0.016)

0.25 - 0.33

(0.010 - 0.013)

0.21 - 0.49

(0.008 - 0.019)

Exhaust

0.37 - 0.45

(0.015 - 0.018)

0.32 - 0.40

(0.013 - 0.016)

0.30 - 0.58

(0.012 - 0.023)

*: At a temperature of approximately 20°C (68°F)
Whenever valve clearances are adjusted to cold specifications, check that
the clearances satisfy hot specifications and adjust again if necessary.

AEM293

Assembly

NLEM0020

Install valve component parts.

Always use new valve oil seal. Refer to EM-31.

Before installing valve oil seal, install valve spring seat.

After installing valve components, tap valve stem tip with
a plastic hammer to assure a proper fit.

Install valve spring (narrow pitch at both ends of spring)
with either end toward cylinder head.

SEM899F

Installation

NLEM0021

Before installing cylinder head gasket, apply a continuous
bead of liquid gasket to mating surface of cylinder block.

Install cylinder head gasket.

When installing cylinder head with manifolds, use new
cylinder head gasket.

SEM877A

Install cylinder head with manifolds.

Be sure to install washers between bolts and cylinder
head.

Do not rotate crankshaft and camshaft separately, or
valves will strike piston heads.

Apply new engine oil to cylinder head bolt threads and
seat surfaces.

CYLINDER HEAD

Valve Clearance (Cont’d)

EM-45

SEM900F

SEM614EC

SEM901F

Tightening procedure
a. Tighten bolts to 29 N·m (3 kg-m, 22 ft-lb).
b. Tighten bolts to 59 N·m (6 kg-m, 43 ft-lb).
c. Loosen bolts completely.
d. Tighten bolts to 29 N·m (3 kg-m, 22 ft-lb).
e. Turn bolts 50 to 55 degrees clockwise or if angle wrench
is not available, tighten bolts to 59

4.9 N·m (6

0.5 kg-m,

3.6 ft-lb).

f. Tightening bolts (11 - 14) to 6.3 to 8.3 N·m (0.64 to 0.85
kg-m, 55.8 to 73.5 in-lb).

Tightening torque N·m (kg-m, ft-lb)

e, f

Bolts

(1 - 10)

(3, 22)

(6, 43)

(0, 0)

(3, 22)

50 - 55

degrees or

4.9

0.5,

3.6

ft-lb)

Bolts

(11 - 14)

—

6.3 - 8.3

(0.64 -

0.85, 55.8 -

73.5 in-lb)

Install camshaft.

The camshafts are distinguished by a paint mark as follows.
Intake camshaft: Other paint color than white
Exhaust camshaft: White paint or no paint

SEM902F

Make sure camshafts are aligned as shown in figure.

SEM903F

Install camshaft brackets.

Make sure camshaft brackets are aligned as marked dur-
ing disassembly.

CYLINDER HEAD

Installation (Cont’d)

EM-46

SEM904F

Apply new engine oil to bolt threads and seat surface.

Tighten camshaft bracket bolts in the following steps.
a. Tighten bolts 9 - 12, then 1 - 8.

2.0 N·m (0.204 kg-m, 17.7 in-lb)

b. Tighten bolts 1 - 12.

5.9 N·m (0.60 kg-m, 52.2 in-lb)

c. Tighten bolts 1 - 12.

9.0 - 11.8 N·m (0.92 - 1.20 kg-m, 80 - 104 in-lb)

If any part of valve assembly or camshaft is replaced,
check valve clearance according to reference data.
After completing assembly check valve clearance. Refer
to “Checking” and “Adjusting” in “VALVE CLEARANCE”
(EM-42).

Reference data valve clearance (Cold):

Intake

0.25 - 0.33 mm (0.010 - 0.013 in)

Exhaust

0.32 - 0.40 mm (0.013 - 0.016 in)

SEM905F

Install camshaft sprocket.

Set timing chain by aligning mating marks with those of
camshaft sprockets.

SEM906F

Install camshaft sprocket bolts to correct torque.

Apply new engine oil to bolt threads and seat surface.

SEM907F

Install chain tensioner.

Before installing chain tensioner, insert a suitable pin into
pin hole of chain tensioner.

After installing chain tensioner, remove the pin.

Install timing chain guide.

CYLINDER HEAD

Installation (Cont’d)

EM-47

SEM887F

10. Install cylinder head front cover.

Apply liquid gasket to cylinder head front cover.

Use Genuine Liquid Gasket or equivalent.

SEM889F

11. Install camshaft position sensor (PHASE).

SEM888F

12. Before installing rocker cover, apply a continuous bead of liq-

uid gasket to mating surface of cylinder head.

SEM105G

13. Install rocker cover with rocker cover gasket and tighten bolts

in numerical order as shown in the figure.

14. Install spark plugs.
15. Install ignition coils.
16. Install exhaust manifold.
17. Install intake manifold rear supports.
18. Connect vacuum hoses, fuel hoses, water hose, wire, harness,

connectors and so on.

19. Install front exhaust tube.
20. Install front undercovers.
21. Install air duct to intake manifold collector.
22. Drive belts.

For adjusting drive belt deflection, refer to “Checking”, EM-17.

23. Reinstall parts in reverse order of removal.

CYLINDER HEAD

Installation (Cont’d)

EM-48

Nissan Almera Tino V10 (2001 year). Manual - part 144