Nissan Rogue. Manual — part 564
CAMSHAFT VALVE CLEARANCE
EM-21
< PERIODIC MAINTENANCE >
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CAMSHAFT VALVE CLEARANCE
Camshaft valve clearance
INFOID:0000000011279943
• Perform this inspection as follows after removal, installation, or replacement of the camshaft or any valve
parts, or if there are any unusual engine conditions due to changes in valve clearance over time (starting,
idling, and/or noise).
1. Remove the fender protector side cover (RH). Refer to
EXT-28, "FENDER PROTECTOR : Exploded
.
2. Remove the rocker cover. Refer to
.
3. Turn crankshaft pulley clockwise when viewed from front to align
TDC identification mark (B) with timing indicator (A).
NOTE:
Do not confuse TDC mark (B) with paint marks (C).
4. At this time, check that the both intake and exhaust cam lobes of
No. 1 cylinder face outside.
• If they do not face outside, turn crankshaft pulley once more.
5. Measure valve clearances with a suitable tool at locations
marked (X) in the table below.
• No.1 cylinder compression TDC.
ALBIA0840GB
ALBIA0882GB
Cylinder
No.1 (A)
No.2 (B)
No.3 (C)
No.4 (D)
Valve
INT
(E)
EXH
(F)
INT
(E)
EXH
(F)
INT
(E)
EXH
(F)
INT
(E)
EXH
(F)
Measure
x
x
x
x
: Engine front
ALBIA0886GB
EM-22
< PERIODIC MAINTENANCE >
CAMSHAFT VALVE CLEARANCE
• Use a suitable tool to measure the clearance between valve
lifter and camshaft.
6. Turn crankshaft one complete revolution (360
°) and align mark on crankshaft pulley with pointer.
7. Measure valve clearances with a suitable tool at locations
marked (X) in the table below.
• No.4 cylinder compression TDC.
If out of specifications, make necessary adjustment.
ADJUSTMENT
NOTE:
• Perform adjustment by selecting the valve lifter with the correct head thickness.
1. Remove camshaft. Refer to
.
2. Remove the valve lifters at the locations that are outside the standard.
3. Measure the center thickness of the removed valve lifters with a
suitable tool (A).
4. Use the equation below to calculate valve lifter thickness for replacement.
• Valve lifter thickness calculation.
t = t1 + (C1 - C2)
t = Thickness of replacement valve lifter.
t1 = Thickness of removed valve lifter.
C1 = Measured valve clearance.
C2 = Standard valve clearance.
Valve clearance: Refer to
.
SEM139D
Cylinder
No.1 (A)
No.2 (B)
No.3 (C)
No.4 (D)
Valve
INT
(E)
EXH
(F)
INT
(E)
EXH
(F)
INT
(E)
EXH
(F)
INT
(E)
EXH
(F)
Measure
x
x
x
x
: Engine front
ALBIA0884GB
PBIC3195J
CAMSHAFT VALVE CLEARANCE
EM-23
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• Thickness of a new valve lifter (B) can be identified by stamp
marks (A) on the reverse side (inside the cylinder).
Stamp mark 324H indicates a thickness of 3.24 mm (0.1276
in)
Available thickness of valve lifter: 26 sizes with a range of
3.00 to 3.50 mm (0.1181 to 0.1378 in), in steps of 0.02 mm
(0.0008 in), when assembled at the factory.
5. Install the selected valve lifter.
6. Install camshaft. Refer to
EM-69, "Removal and Installation"
.
7. Install timing chain and related parts. Refer to
.
8. Manually rotate crankshaft pulley a few rotations.
9. Check that valve clearances for cold engine are within specifications by referring to the specified values.
10. Install all removed parts in the reverse order of removal.
11. Warm up the engine, and check for unusual noise and vibration.
Valve clearance
Refer to
PBIC3196J
EM-24
< PERIODIC MAINTENANCE >
COMPRESSION PRESSURE
COMPRESSION PRESSURE
Compression pressure
INFOID:0000000011279944
CHECKING COMPRESSION PRESSURE
1. Warm up the engine to full operating temperature.
2. Release the fuel pressure. Refer to
.
3. Remove the ignition coil and spark plug from each cylinder. Refer to
EM-41, "Removal and Installation"
and
EM-19, "Removal and Installation"
.
4. Connect engine tachometer (not required in use of CONSULT).
5. Disconnect the fuel injector harness connector to avoid any residual fuel injection during the measure-
ment.
6. Install the compression tester with the adapter into the spark
plug hole.
• Use compression tester whose end (a) (rubber portion) is smaller
than 20 mm (0.79 in) in diameter. Otherwise, it may be caught by
cylinder head during removal.
7. With the accelerator pedal fully depressed, turn the ignition switch to the “START” position to crank over
the engine. When the gauge pointer stabilizes, read the compression pressure and engine rpm. Perform
these steps to check each cylinder.
Unit: kPa (kg/cm
2
, psi) / rpm
CAUTION:
Always use a fully charged battery to obtain specified engine cranking speed.
• If the engine speed is out of specified rpm range, check the battery. Check engine speed again with a fully
charged battery.
• If compression pressure is below minimum value, check valve clearances and parts associated with com-
bustion chamber (valve, valve seat, piston, piston ring, cylinder bore, cylinder head, cylinder head gasket).
After the checking, measure compression pressure again.
• If some cylinders have low compression pressure, pour small amount of engine oil into the spark plug hole of
the cylinder to re-check it for compression.
• If the added engine oil improves the compression, the piston rings may be worn or damaged. Check the pis-
ton rings and replace if necessary.
• If the compression pressure remains at low level despite the addition of engine oil, the valves may be mal-
functioning. Check the valves for damage. Replace the valve or valve seat accordingly.
ALBIA0917GB
JPBIA0171ZZ
Standard
Minimum
Difference limit between cylinders
1410 (14.4, 204.5) / 250
1220 (12.4, 176.9) / 250
100 (1.0, 14) / 250
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