Nissan Tiida C11. Instruction — part 699
EM-148
< ON-VEHICLE MAINTENANCE >
[MR18DE]
CAMSHAFT VALVE CLEARANCE
CAMSHAFT VALVE CLEARANCE
Valve Clearance
INFOID:0000000001337799
INSPECTION
Perform inspection as follows after removal, installation or replacement of camshaft or valve-related parts, or if
there is unusual engine conditions regarding valve clearance.
1.
Remove rocker cover. Refer to
EM-173, "Removal and Installation"
2.
Measure the valve clearance with the following procedure:
a.
Set No. 1 cylinder at TDC of its compression stroke.
• Rotate crankshaft pulley (1) clockwise and align TDC mark (no paint) (B) to timing indicator (A) on front
cover.
• At the same time, make sure that both intake and exhaust cam
noses of No. 1 cylinder face inside (
) as shown.
• If they do not face inside, rotate crankshaft pulley once more
(360 degrees) and align as shown.
b.
Use a feeler gauge, measure the clearance between valve lifter
and camshaft.
Valve clearance:
Unit: mm (in)
*: Approximately 80
°
C (176
°
F)
C : White paint mark (Not use for service)
PBIC3960E
1
: Camshaft (INT)
2
: Camshaft (EXH)
: Engine front
PBIC3359J
PBIC3192J
Cold
Hot * (reference data)
Intake
0.26 - 0.34 (0.010 - 0.013)
0.304 - 0.416 (0.012 - 0.016)
Exhaust
0.29 - 0.37 (0.011 - 0.015)
0.308 - 0.432 (0.012 - 0.017)
CAMSHAFT VALVE CLEARANCE
EM-149
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• By referring to the figure, measure the valve clearances at
locations marked “
×
” as shown in the table below [locations
indicated with black arrow (
)] with a feeler gauge.
• No. 1 cylinder compression TDC
c.
Set No.4 cylinder at TDC of its compression stroke.
• Rotate crankshaft pulley (1) one revolution (360 degrees) and
align TDC mark (no paint) (B) to timing indicator (A) on front
cover.
• By referring to the figure, measure the valve clearance at loca-
tions marked “
×
” as shown in the table below [locations indi-
cated with black arrow (
)] with a feeler gauge.
• No. 4 cylinder compression TDC
3.
If out of standard, perform adjustment procedure.
ADJUSTMENT
• Perform adjustment depending on selected head thickness of valve lifter.
1.
Remove camshaft. Refer to
EM-186, "Removal and Installation"
2.
Remove valve lifters at the locations that are out of the standard.
Measuring position
No. 1 CYL.
No. 2 CYL.
No. 3 CYL.
No. 4 CYL.
No. 1 cylinder at
compression TDC
EXH
×
×
INT
×
×
A
: Exhaust side
B
: No.1 cylinder
C
: No.2 cylinder
D
: No.3 cylinder
E
: No.4 cylinder
F
: Intake side
: Engine front
PBIC3193J
C : White paint mark (Not use for service)
PBIC3960E
Measuring position
No. 1 CYL.
No. 2 CYL.
No. 3 CYL.
No. 4 CYL.
No. 4 cylinder at
compression TDC
EXH
×
×
INT
×
×
A
: Exhaust side
B
: No.1 cylinder
C
: No.2 cylinder
D
: No.3 cylinder
E
: No.4 cylinder
F
: Intake side
: Engine front
PBIC3194J
EM-150
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[MR18DE]
CAMSHAFT VALVE CLEARANCE
3.
Measure the center thickness of the removed valve lifters with a
micrometer (A).
4.
Use the equation below to calculate valve lifter thickness for replacement.
• Thickness of new valve lifter (B) can be identified by stamp
mark (A) on the reverse side (inside the cylinder).
Stamp mark “302” indicates 3.02 mm (0.1189 in) in thickness.
NOTE:
Available thickness of valve lifter: 26 sizes range 3.00 to 3.50 mm (0.1181 to 0.1378 in) in steps of 0.02
mm (0.0008 in) (when manufactured at factory). Refer to
5.
Install the selected valve lifter.
6.
Install camshaft. Refer to
EM-186, "Removal and Installation"
.
7.
Install timing chain and related parts. Refer to
8.
Instructionly rotate crankshaft pulley a few rotations.
9.
Make sure that the valve clearances is within the standard.
10. Installation of the remaining components is in the reverse order of removal.
PBIC3195J
Valve lifter thickness calculation:
t = t
1
+ (C
1
– C
2
)
t
= Valve lifter thickness to be replaced
t
1
= Removed valve lifter thickness
C
1
= Measured valve clearance
C
2
= Standard valve clearance:
Intake
: 0.30 mm (0.012 in)
Exhaust
: 0.33 mm (0.013 in)
PBIC3196J
COMPRESSION PRESSURE
EM-151
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COMPRESSION PRESSURE
Checking Compression Pressure
INFOID:0000000001346452
1.
Warm up engine thoroughly. Then, stop it.
2.
Release fuel pressure. Refer to
.
3.
Disconnect fuel pump fuse (1) to avoid fuel injection during mea-
surement.
4.
Remove engine cover. Refer to
5.
Remove ignition coil and spark plug from each cylinder. Refer to
EM-145, "Removal and Installation"
6.
Connect an engine tachometer (not required in use of CONSULT-III).
7.
Install a suitable compression tester with an adapter onto spark
plug hole.
• Use the adapter whose picking up end inserted to spark plug
hole is smaller than 20 mm (0.79 in) in diameter. Otherwise, it
may be caught by cylinder head during removal.
8.
With accelerator pedal fully depressed, turn ignition switch to “START” for cranking. When the gauge
pointer stabilizes, read the compression pressure and the engine rpm. Perform these steps to check each
cylinder.
Compression pressure:
Unit: kPa (bar, kg/cm
2
psi) /rpm
CAUTION:
Always use a fully charged battery to obtain the specified engine speed.
• If the engine speed is out of the specified range, check battery liquid for proper gravity. Check engine
speed again with normal battery gravity.
: Vehicle front
PBIA9861J
LBIA0459E
SBIA0533E
Standard
Minimum
Differential limit between cylinders
1,500 (15.0, 15.3, 217.6) / 200
1,200 (12.0, 12.2, 174) / 200
100 (1, 1, 15) / 200
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