Page 2177 of 2898

EM113
PressureNJEM0019S1302Check valve spring pressure at specified spring height.
Pressure:
For Sedan
Standard
344.42 N (35.12 kg, 77.44 lb) at 25.26 mm (0.9945
in)
Limit
More than 323.73 N (33.01 kg, 72.79 lb) at 25.26
mm (0.9945 in)
For Hatchback
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 SHIMNJEM0019S161. Check contact and sliding surfaces for wear or scratches.
SEM161D
2. 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.
CYLINDER HEADQG
Inspection (Cont'd)
EM-43
Page 2178 of 2898

SEM921F
Valve ClearanceNJEM0041CHECKINGNJEM0041S01Check valve clearance while engine is warm and not running.
1. Remove rocker cover.
2. Remove all spark plugs.
3. 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 (360É) and align as
described above.
SEM922F
4. Check only those valves shown in the figure.
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
5. Turn crankshaft one revolution (360É) and align mark on crank-
shaft pulley with pointer.
6. Check only those valves shown in the figure.
+Use the same procedure as mentioned in step 4.
7. If all valve clearances are within specification, install the fol-
lowing parts:
+Rocker cover
+All spark plugs
CYLINDER HEADQG
Valve Clearance
EM-44
Page 2179 of 2898

SEM941F
ADJUSTINGNJEM0041S02Adjust valve clearance while engine is cold.
1. Turn crankshaft. Position cam lobe upward on camshaft for
valve that must be adjusted.
2. 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
3. Rotate Tool (A) so that valve lifter is pushed down.
SEM925F
4. 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).
5. Remove Tool (A).
SEM144D
SEM145D
6. Remove adjusting shim using a small screwdriver and a mag-
netic finger.
7. 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+[Mþ0.37 mm (0.0146 in)]
Exhaust:
N=R+[Mþ0.40 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).
CYLINDER HEADQG
Valve Clearance (Cont'd)
EM-45
Page 2180 of 2898

AEM236
+Select the closest size shim to the calculated thickness. Refer
to chart in SDS, EM-69.
SEM146D
8. Install new shim using a suitable tool.
+Install with the surface on which the thickness is stamped
facing down.
SEM147D
9. Place Tool (A) as explained in steps 2 and 3.
10. Remove Tool (B).
11. Remove Tool (A).
12. Recheck valve clearance.
Valve clearance:
Unit: mm (in)
For adjusting For checking
HotCold* (reference
data)Hot
Intake0.32 - 0.40
(0.013 - 0.016)0.25 - 0.33
(0.010 - 0.013)0.21 - 0.49
(0.008 - 0.019)
Exhaust0.37 - 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 20ÉC (68ÉF)
Whenever valve clearances are adjusted to cold specifications, check that
the clearances satisfy hot specifications and adjust again if necessary.
AEM293
AssemblyNJEM00201. Install valve component parts.
+Always use new valve oil seal. Refer to EM-32.
+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.
CYLINDER HEADQG
Valve Clearance (Cont'd)
EM-46
Page 2181 of 2898

SEM899F
InstallationNJEM00211. Before installing cylinder head gasket, apply a continuous
bead of liquid gasket to mating surface of cylinder block.
2. Install cylinder head gasket.
+When installing cylinder head with manifolds, use new
cylinder head gasket.
SEM877A
3. 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.
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,
43±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)
abcde,f
Bolts
(1-10)29
(3, 22)59
(6, 43)0
(0, 0)29
(3, 22)50-55
degrees or
59±4.9
(6±0.5,
43±3.6
ft-lb)
Bolts
(11-14)ÐÐÐÐ6.3 - 8.3
(0.64 -
0.85, 55.8 -
73.5 in-lb)
4. 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
CYLINDER HEADQG
Installation
EM-47
Page 2182 of 2898
SEM902F
+Make sure camshafts are aligned as shown in figure.
SEM903F
5. Install camshaft brackets.
+Make sure camshaft brackets are aligned as marked dur-
ing disassembly.
SEM904F
+Apply new engine oil to bolt threads and seat surface.
+Tighten camshaft bracket bolts in the following steps.
a. Tighten bolts9-12,then1-8.
2.0 N´m (0.204 kg-m, 17.7 in-lb)
b. Tighten bolts1-12.
5.9 N´m (0.60 kg-m, 52.2 in-lb)
c. Tighten bolts1-12.
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 ªCheckingº and ªAdjustingº in ªVALVE CLEARANCEº
(EM-44).
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
6. Install camshaft sprocket.
+Set timing chain by aligning mating marks with those of
camshaft sprockets.
CYLINDER HEADQG
Installation (Cont'd)
EM-48
Page 2183 of 2898
SEM906F
7. Install camshaft sprocket bolts to correct torque.
+Apply new engine oil to bolt threads and seat surface.
SEM907F
8. Install chain tensioner.
+Before installing chain tensioner, insert a suitable pin into
pin hole of chain tensioner.
+After installing chain tensioner, remove the pin.
9. Install timing chain guide.
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.
CYLINDER HEADQG
Installation (Cont'd)
EM-49
Page 2184 of 2898
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 ªCheckingº, EM-16.
23. Reinstall parts in reverse order of removal.
CYLINDER HEADQG
Installation (Cont'd)
EM-50