NISSAN ALMERA TINO 2001 Service Repair Manual

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 must be
replaced.
Nominal cylinder head height:
136.9 - 137.1 mm (5.390 - 5.398 in)
SEM926C
CAMSHAFT VISUAL CHECKNLEM0133S02Check camshaft for scratches, seizure and wear.
CAMSHAFT RUNOUTNLEM0133S031. 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)
2. If it exceeds the limit, replace camshaft.
SEM549A
CAMSHAFT CAM HEIGHTNLEM0133S041. Measure camshaft cam height.
Standard cam height:
Intake
37.775 mm (1.4872 in)
Exhaust
37.404 mm (1.4726 in)
Cam height wear limit:
Intake & Exhaust
0.2 mm (0.008 in)
2. If wear is beyond the limit, replace camshaft.
CYLINDER HEADSR
Inspection (Cont'd)
EM-114

SEM927C
CAMSHAFT JOURNAL CLEARANCENLEM0133S051. Install camshaft bracket and tighten bolts. Refer to EM-123.
2. Measure inner diameter of camshaft bearing.
Standard inner diameter:
28.000 - 28.021 mm (1.1024 - 1.1032 in)
SEM012A
3. Measure outer diameter of camshaft journal.
Standard outer diameter:
27.950 - 27.970 mm (1.1004 - 1.1012 in)
4. Calculate camshaft journal clearance.
Camshaft journal clearance = standard inner diameter
± standard outer diameter:
Standard
0.030 - 0.071 mm (0.0012 - 0.0028 in)
Limit
0.15 mm (0.0059 in)
5. If clearance exceeds the limit, replace camshaft and remea-
sure camshaft journal clearance.
+If clearance still exceeds the limit after replacing camshaft,
replace cylinder head.
SEM062G
CAMSHAFT END PLAYNLEM0133S061. Install camshaft in cylinder head. Refer to EM-123.
2. Measure camshaft end play.
Camshaft end play:
Standard
0.055 - 0.139 mm (0.0022 - 0.0055 in)
Limit
0.20 mm (0.0079 in)
3. If end play exceeds the limit, replace camshaft and remeasure
camshaft end play.
+If end play still exceeds the limit after replacing camshaft,
replace cylinder head.
CYLINDER HEADSR
Inspection (Cont'd)
EM-115

SEM929C
CAMSHAFT SPROCKET RUNOUTNLEM0133S071. Install sprocket on camshaft.
2. Measure camshaft sprocket runout.
Runout (Total indicator reading):
Limit 0.25 mm (0.0098 in)
3. If it exceeds the limit, replace camshaft sprocket.
SEM003D
VALVE GUIDE CLEARANCENLEM0133S081. Measure valve deflection as shown in illustration. (Valve and
valve guide mostly wear in this direction.)
Valve deflection limit (Dial gauge reading):
Intake & Exhaust
0.2 mm (0.008 in)
SEM938C
2. If it exceeds the limit, check valve to valve guide clearance.
a. Measure valve stem diameter and valve guide inner diameter.
b. Calculate valve to valve guide clearance.
Valve to valve guide clearance = valve guide inner
diameter þ valve stem diameter:
Standard
Intake 0.020 - 0.053 mm (0.0008 - 0.0021 in)
Exhaust 0.040 - 0.073 mm (0.0016 - 0.0029 in)
Limit
Intake 0.08 mm (0.0031 in)
Exhaust 0.1 mm (0.004 in)
c. If it exceeds the limit, replace valve and remeasure clearance.
+If clearance still exceeds the limit after replacing valve, replace
valve guide.
SEM008A
VALVE GUIDE REPLACEMENTNLEM0133S091. To remove valve guide, heat cylinder head to 110 to 130ÉC
(230 to 266ÉF).
CYLINDER HEADSR
Inspection (Cont'd)
EM-116

SEM931C
2. 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
3. Ream cylinder head valve guide hole.
Valve guide hole diameter
(for service parts):
Intake & Exhaust
10.175 - 10.196 mm (0.4006 - 0.4014 in)
SEM083D
4. Heat cylinder head to 110 to 130ÉC (230 to 266ÉF) and press
service valve guide into cylinder head.
Projection ªLº:
14.0 - 14.2 mm (0.551 - 0.559 in)
SEM932C
5. Ream valve guide.
Finished size:
Intake & Exhaust
6.000 - 6.018 mm (0.2362 - 0.2369 in)
SEM934C
VALVE SEATSNLEM0133S10Check 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 are worn, replace them. Then correct valve
seat.
+Use both hands to cut uniformly.
CYLINDER HEADSR
Inspection (Cont'd)
EM-117

SEM795A
REPLACING VALVE SEAT FOR SERVICE PARTSNLEM0133S111. 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.
2. Ream cylinder head recess.
Reaming bore for service valve seat
Oversize [0.5 mm (0.020 in)]:
Intake 35.500 - 35.516 mm (1.3976 - 1.3983 in)
Exhaust 31.500 - 31.516 mm (1.2402 - 1.2408 in)
Use the valve guide center for reaming to ensure valve seat
will have the correct fit.
SEM008A
3. Heat cylinder head to 110 to 130ÉC (230 to 266ÉF).
4. Press fit valve seat until it seats on the bottom.
SEM892B
5. Cut or grind valve seat to the specified dimensions using a
suitable tool. Refer to SDS, EM-150.
6. After cutting, lap valve seat with abrasive compound.
7. Check valve seating condition.
Seat face angle ªaº:
44É53¢- 45É07¢
Contacting width ªWº:
Intake
1.385 - 1.401 mm (0.0545 - 0.0552 in)
Exhaust
1.385 - 1.401 mm (0.0545 - 0.0552 in)
CYLINDER HEADSR
Inspection (Cont'd)
EM-118

SEM188A
VALVE DIMENSIONSNLEM0133S12Check dimensions of each valve. Refer to SDS, EM-147.
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 SPRINGNLEM0133S13SquarenessNLEM0133S13011. Measure dimension ªSº.
Out-of-square ªSº:
Less than 2.2 mm (0.087 in)
2. If it exceeds the limit, replace spring.
Free height
Check free height: 49.36 mm (1.9433 in)
EM113
PressureNLEM0133S1302Check valve spring pressure at specified spring height.
Pressure:
Standard
519 - 571 N (52.9 Ð 58.2 kg, 116.7 Ð 128.4 lb) at
27 mm (1.06 in)
Limit
More than 501 N (51.1 kg, 112.6 lb) at 27 mm (1.06
in)
If it exceeds the limit, replace spring.
SEM935C
HYDRAULIC LASH ADJUSTERNLEM0133S171. Check contact and sliding surfaces for wear or score.
SEM936C
2. Check diameter of lash adjuster.
Outer diameter:
16.980 - 16.993 mm (0.6685 - 0.6690 in)
CYLINDER HEADSR
Inspection (Cont'd)
EM-119

SEM084D
3. Check lash adjuster guide hole diameter.
Inner diameter:
17.000 - 17.020 mm (0.6693 - 0.6701 in)
Standard clearance between lash adjuster and adjuster
guide hole:
0.007 - 0.040 mm (0.0003 - 0.0016 in)
SEM063G
ROCKER ARM, SHIM AND ROCKER ARM GUIDENLEM0133S18Check contact and sliding surfaces of rocker arms, shims and
rocker arm guides for wear or score.
AssemblyNLEM0135CAUTION:
+When installing rocker arms, camshaft and oil seal, lubri-
cate 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.
AEM116
+If a hydraulic lash adjuster is kept on its side, there is a
risk of air entering it. When hydraulic lash adjusters are
removed, stand them straight up or soak them in new
engine oil.
+Do not disassemble hydraulic lash adjusters.
+Attach tags to lash adjusters so as not to mix them up.
SEM595D
1. Install valve component parts.
+Install valves, noting their identification marks as indi-
cated in the table below.
Identification mark
Intake valve E71
Exhaust valve 6Y2
CYLINDER HEADSR
Inspection (Cont'd)
EM-120

SEM085D
+Always use new valve oil seal.
Refer to EM-105.
+Before installing valve oil seal, install valve spring seat.
+Install valve spring (uneven pitch type) with its narrow
pitched side (paint mark) toward cylinder head side.
+After installing valve components, use plastic hammer to
lightly tap valve stem tip to assure a proper fit.
SEM093D
2. Check hydraulic lash adjusters.
a. Push on the rocker arm above the hydraulic lash adjuster. If it
moves 1 mm (0.04 in) or more, there is air in the high pressure
chamber of hydraulic lash adjuster.
Noise will be emitted from hydraulic lash adjuster if engine is
started without bleeding air.
AEM117
b. Remove hydraulic lash adjuster and dip in a container filled
with new engine oil. While pushing plunger as shown in figure,
lightly push check ball using a thin rod. Air is completely bled
when plunger no longer moves.
Air cannot be bled from this type of lash adjuster by running
engine.
SEM202D
3. Install rocker arms, shims, rocker arm guides and hydraulic
lash adjusters.
CAUTION:
Install all parts in their original positions.
SEM364D
4. Select a suitable shim when replacing any of the following
parts with a new one: Cylinder head, shim, rocker arm guide
and valve seat. Proceed as follows to select the shim of cor-
rect thickness.
a. Install valve component parts to cylinder head (Except shim).
+Always replace rocker arm guide with a new one.
CYLINDER HEADSR
Assembly (Cont'd)
EM-121

SEM365DA
b. Remove hydraulic lash adjuster.
c. Install Tool* into hydraulic lash adjuster fixing hole.
* Tool (KV10115700) is screwed into magnetic stand rod used
with dial gauge.
d.
SEM899D
Make sure that the following parts are installed to the cylinder
head: Valve, valve spring, collet, retainer and rocker arm guide
(except shim). Measure difference (T
1) between sliding surface
of rocker arm guide and valve stem end on shim side.
When measuring, lightly pull dial indicator rod toward you
to eliminate play in Tool (KV10115700).
SEM096D
e. Select correct shim.
Shim thickness (T):
T
1±0.025 mm (0.0010 in)
+Shims are available in different thicknesses from 2.800 mm
(0.1102 in) to 3.200 mm (0.1260 in) in increments of 0.025 mm
(0.0010 in).
SEM064G
5. Install intake manifold with intake manifold collector as shown.
CYLINDER HEADSR
Assembly (Cont'd)
EM-122

SEM059GA
6. Install exhaust manifold.
+Tighten exhaust manifold bolts in numerical order.
Exhaust manifold:
: 49 - 63 N´m (5.0 - 6.5 kg-m, 37 - 47 ft-lb)
SEM060G
7. Install EGR volume control valve assembly.
SEM058G
8. Install EGR tube.
9. Install exhaust manifold cover.
BEM005
10. Install water outlet.
a. Remove old liquid gasket from mating surface of water outlet.
+Also remove old liquid gasket from mating surface of cyl-
inder head.
b. Apply a continuous bead of liquid gasket to mating surface of
water outlet.
+Use Genuine RTV silicone sealant part No. 999MP-A7007
or equivalent.
AEM250
InstallationNLEM01361. Before installing cylinder head gasket, apply liquid gasket as
shown in the illustration.
CYLINDER HEADSR
Assembly (Cont'd)
EM-123