engine NISSAN TIIDA 2007 Service Repair Manual

CAMSHAFT VALVE CLEARANCE
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CAMSHAFT VALVE CLEARANCE
Inspection and AdjustmentINFOID:0000000001381391
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-47, "
Exploded View".
2. Measure the valve clearance with the following procedure:
a. Set No. 1 cylinder at TDC of its compression stroke.
 Rotate crankshaft pulley (2) clockwise and align TDC mark
(without paint mark) (A) to timing indicator (1) on front cover.
 At the same time, make sure that both intake and exhaust cam
noses of No. 1 cylinder face outside as shown.
 If they do not face outside, rotate crankshaft pulley once more
(360 degrees) and align as shown.
b. Use a feeler gauge, measure the clearance between valve lifter
and camshaft.
 By referring to the figure, measure the valve clearances at
locations marked “×” as shown in the table below [locations
indicated with black arrow ( ) shown] with a feeler gauge.
B : White paint mark (Not use for service)
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1 : Camshaft (INT)
2 : Camshaft (EXH)
: Engine front
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Valve Clearance: Refer to EM-123, "Camshaft".
SEM139D
A : No. 1 cylinder compression TDC
: Engine front
Measuring position No. 1 CYL. No. 2 CYL. No. 3 CYL. No. 4 CYL.
Measurement po-
sitionEXH××
INT××
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CAMSHAFT VALVE CLEARANCE
c. Rotate crankshaft pulley (2) one revolution (360 degrees) and
align TDC mark (without paint mark) (A) to timing indicator (1) 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 ( ) shown] with a feeler gauge.
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-59, "
Exploded View".
2. Remove valve lifters at the locations that are out of the standard.
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.
B : White paint mark (Not use for service)
PBIC3673E
A : No. 4 cylinder compression TDC
: Engine front
Measuring position No. 1 CYL. No. 2 CYL. No. 3 CYL. No. 4 CYL.
Measurement
pointEXH××
INT××
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Valve lifter thickness calculation: t = t1 + (C1– C2)
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)

CAMSHAFT VALVE CLEARANCE
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 Thickness of new valve lifter (B) can be identified by stamp
mark (A) on the reverse side (inside the cylinder).
 Stamp mark “300” indicates 3.00 mm (0.118 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 EM-123, "
Camshaft".
5. Install the selected valve lifter.
6. Install camshaft. Refer to EM-59, "
Exploded View".
7. Manually rotate crankshaft pulley a few rotations.
8. Make sure that valve clearances for cold engine are within specifications by referring to the specified val-
ues.
9. Install all removed parts in the reverse order of removal.
10. Warm up the engine, and check for unusual noise and vibration.
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COMPRESSION PRESSURE
COMPRESSION PRESSURE
InspectionINFOID:0000000001381392
1. Warm up engine thoroughly. Then, stop it.
2. Release fuel pressure. Refer to EC-377, "
Inspection" (EURO-OBD), EC-681, "Inspection" (WITHOUT
EURO-OBD).
3. Remove ignition coil and spark plug from each cylinder. Refer to EM-47, "
Exploded View".
4. Connect an engine tachometer (not required in use of CONSULT-III).
5. Install a compression tester (B) with an adapter (commercial
service tool) (A) 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.
6. 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.
CAUTION:
Always use fully a changed 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.
 If compression pressure is below minimum value, check valve clearances and parts associated with
combustion chamber (Valve, valve seat, piston, piston ring, cylinder bore, cylinder head, cylinder head
gasket). After the checking, measure the compression pressure again.
 If some cylinder has 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, piston rings may be worn out or damaged. Check pis-
ton rings and replace if necessary.
- If the compression pressure remains at low level despite the addition of engine oil, valves may be mal-
functioning. Check valves for damage. Replace valve or valve seat accordingly.
 If two adjacent cylinders have respectively low compression pressure and their compression remains
low even after the addition of engine oil, cylinder head gasket is leaking. In such a case, replace cylinder
head gasket.
7. After inspection is completed, install removed parts.
8. Start the engine, and confirm that the engine runs smoothly.
9. Perform trouble diagnosis. If DTC appears, erase it. Refer to EC-469, "
Description".
PBIC3730E
SBIA0533E
Compression Pressure: Refer to EM-122, "General Specification".

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INTAKE MANIFOLD
7. Remove intake manifold support front (1) and bolt from rear (2).
 Bracket (2) is not removed. Remove bolt from intake manifold.
8. Remove intake manifold.
 Loosen bolts in the reverse of the order shown.
9. Remove EVAP canister purge volume control solenoid valve from intake manifold, if necessary.
CAUTION:
Handle EVAP canister purge volume control solenoid valve carefully and avoid impacts.
10. Remove intake manifold support (center) from cylinder head, if necessary.
NOTE:
The intake manifold support (center) functions as the guide when the intake manifold is installed.
INSTALLATION
Installation is in the reverse order of removal.
Intake Manifold
1. Install the gasket to the intake manifold.
 Align the protrusion (A) of gasket to the groove of intake mani-
fold.
2. Place the intake manifold into the installation position.
CAUTION:
Make sure that the oil level gauge guide is not disconnected from the fixing clip of water inlet due
to interference with intake manifold.
JPBIA0278ZZ
: Engine front
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INTAKE MANIFOLD
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3. Tighten bolts in the numerical order shown.
4. Install intake manifold support (front and rear).
Electronic Throttle Control Actuator
 Tighten bolts of electronic throttle control actuator equally and diagonally in several steps.
 Perform “Throttle Valve Closed Position Learning” after repair when removing harness connector of the elec-
tric throttle control actuator. Refer to EC-27, "
THROTTLE VALVE CLOSED POSITION LEARNING :
Description" (EURO-OBD), EC-390, "THROTTLE VALVE CLOSED POSITION LEARNING : Description"
(WITHOUT EURO-OBD).
 Perform “Throttle Valve Closed Position Learning” and “Idle Air Volume Learning” after repair when replacing
electric throttle control actuator. Refer to EC-27, "
THROTTLE VALVE CLOSED POSITION LEARNING :
Description" (EURO-OBD), EC-390, "THROTTLE VALVE CLOSED POSITION LEARNING : Description"
(WITHOUT EURO-OBD), EC-27, "IDLE AIR VOLUME LEARNING : Description" (EURO-OBD), EC-390,
"IDLE AIR VOLUME LEARNING : Description" (WITHOUT EURO-OBD).
: Engine front
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EXHAUST MANIFOLD
EXHAUST MANIFOLD
Exploded ViewINFOID:0000000001381400
Removal and InstallationINFOID:0000000001381401
REMOVAL
1. Remove the cowl. Refer to EXT-20, "Removal and Installation".
2. Remove the engine room cover.
3. Remove exhaust front tube. Refer to EX-5, "
Component".
4. Remove the harness bracket of heated oxygen sensor 1 from the cylinder head.
5. Remove exhaust manifold cover.
6. Remove the heated oxygen sensor 1.
1. Exhaust manifold cover 2. Exhaust manifold cover 3. Harness bracket
4. Heated oxygen sensor 1 5. Exhaust manifold stay 6. Exhaust manifold
7. Gasket 8. Stud bolt 9. Heat insulator
: Engine front
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EXHAUST MANIFOLD
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 Using heated oxygen sensor wrench [SST: KV10117100] (A),
remove heated oxygen sensor 1.
CAUTION:
Handle heated oxygen sensor 1 carefully and avoid
impacts.
NOTE:
The exhaust manifold can be removed and installed without
removing the heated oxygen sensor 1 (Disassembly of harness
connector is necessary).
7. Remove exhaust manifold side mounting bolt of exhaust manifold stay.
8. Remove exhaust manifold.
 Loosen nuts in the reverse of the order shown.
9. Remove gasket.
CAUTION:
Cover engine openings to avoid entry of foreign materials.
10. Remove exhaust manifold cover from back of exhaust manifold.
INSPECTION AFTER REMOVAL
Mounting Surface Distortion
 Use suitable tools (A) and (B) to check distortion of exhaust mani-
fold mounting surface as shown.
 Replace exhaust manifold if outside the limit.
INSTALLATION
Installation is in the reverse order of removal.
Exhaust Manifold
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: Engine front
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Limit : 0.3 mm (0.012 in)
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EXHAUST MANIFOLD
1. Tighten nuts in numerical order shown.
2. Tighten to the specified torque again.
: Engine front
PBIC3774E

FUEL INJECTOR AND FUEL TUBE
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5. Remove fuel tube protector.
 Loosen bolts in the reverse of the order shown.
6. Remove the fuel injector and fuel tube assembly.
 Loosen bolts in the reverse of the order shown.
CAUTION:
 When removing, be careful to avoid any interference with
fuel injector.
 Use a shop cloth to absorb any fuel leaks from fuel tube.
7. Remove the fuel injector (3) from the fuel tube (1) with the fol-
lowing procedure.
a. Open and remove the clip (2).
b. Remove fuel injector from the fuel tube by pulling straight.
CAUTION:
 Be careful about fuel leakage remaining in fuel tube.
 Be careful not to damage the nozzle of fuel injector.
 Never subject fuel injector to impact by dropping or hit-
ting.
 Never disassemble.
INSTALLATION
1. Install new the O-ring to the fuel injector, paying attention to the following.
CAUTION:
 The upper and lower O-rings are different. Be careful not to confuse them.
 Handle O-ring with bare hands. (Never wear gloves.)
 Lubricate O-ring with engine oil.
 Never clean O-ring with solvent.
 Make sure that the O-ring and its mating part are free of foreign material.
 Be careful not to scratch O-ring with tool or fingernails when installing it. Also be careful not to
twist or stretch O-ring. If O-ring is stretched while installing, never insert it into fuel tube immedi-
ately.
 Insert O-ring straight into fuel tube. Never decenter or twist it.
: Engine front
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: Engine front
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Fuel tube side : Black
Nozzle side : Green