NISSAN TIIDA 2007 Service Repair Manual

EM-304
< REMOVAL AND INSTALLATION >[K9K]
ENGINE ASSEMBLY
1. Install engine slingers (1) into front right of cylinder head and
engine slinger (2) into rear left of cylinder head.
2. Remove upper torque rod.
3. Use a manual lift table caddy (commercial service tool) or equiv-
alently rigid tool such as a jack or trestle. Securely support bot-
tom of engine and transaxle.
CAUTION:
Put a piece of wood or something similar at the supporting
surface to secure a stable condition.
4. Remove RH and LH engine mounting bolts.
5. Remove engine and transaxle assembly from vehicle downward
by carefully operating supporting tools.
CAUTION:
 During the operation, make sure that no part interferes with body side.
 Before and during this lifting, always check if any harnesses are left connected.
 During the removal operation, always be careful to prevent vehicle from falling off the lift due to
changes in the center of gravity.
 If necessary, support vehicle by setting a jack or equivalent tool at the rear.
Separation Work
CAUTION:
During the operation, secure the engine by placing a piece of wood under the engine oil pan and tran-
saxle and lift the engine using a suitable tool.
1. Remove starter motor.
2. Separate engine and transaxle.
3. Lift the engine with a suitable tool and separate the engine from the transaxle assembly. Refer to EM-302,
"Exploded View".
INSTALLATION
Installation is in the reverse order of removal.
 Do not allow oil to get on mounting insulator. Be careful not to damage mounting insulator.
 When installation directions are specified, install parts according to the direction marks on them referring to
exploded views.
 Make sure that each mounting insulator is seated properly, and tighten mounting bolts and nuts.
InspectionINFOID:0000000001381506
INSPECTION AFTER INSTALLATION
 Before starting engine check the levels of coolant, lubricants and oils. Fill to the specified level.
 Before starting engine, bleed air from fuel piping. Refer to EM-287, "
Removal and Installation".
 Run engine to check for unusual noise and vibration.
 Warm up engine thoroughly to make sure there is no leakage of coolant, lubricants, oil, fuel and exhaust
gas.
 Bleed air from passages in pipes and tubes of applicable lines.
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ENGINE STAND SETTING
EM-305
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DISASSEMBLY AND ASSEMBLY
ENGINE STAND SETTING
SettingINFOID:0000000001381507
Before the engine is mounted on the engine sub-attachment, the engine's electrical harness must be removed
and the engine oil drained.
1. Remove the generator.
2. Remove the multifunction support.
3. Remove the coolant inlet pipe on the water pump.
4. Place the rods (A), (X), (Y) on the cylinder block.
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EM-306
< DISASSEMBLY AND ASSEMBLY >[K9K]
CYLINDER HEAD
CYLINDER HEAD
Exploded ViewINFOID:0000000001381508
Removal and InstallationINFOID:0000000001381509
REMOVAL
1. Remove the following parts.
 Air inlet tube: Refer to EM-272, "
Removal and Installation".
 Rocker cover: Refer to EM-289, "
Removal and Installation".
 Injection tube and fuel injector: Refer to EM-281, "
Removal and Installation".
 High pressure supply pump: Refer to EM-287, "
Removal and Installation".
 Exhaust manifold: Refer to EM-277, "
Removal and Installation".
 Timing belt: Refer to EM-291, "
Removal and Installation".
 Camshaft: Refer to EM-298, "
Removal and Installation".
2. Remove cylinder head bolts in reverse order as shown and
remove cylinder head.
3. Remove cylinder head gasket.
1. Valve lifter 2. Valve collet 3. Valve spring retainer
4. Valve spring 5. Cylinder head bolt 6. Cylinder head
7. Cylinder head gasket 8. Engine slinger 9. Valve
A. 25.0 N·m (2.6 kg-m, 18ft-lb) and 255 degrees
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CYLINDER HEAD
EM-307
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INSTALLATION
1. Position the pistons at mid-stroke.
2. Install new cylinder head gasket using the centering dowels of the cylinder block.
NOTE:
The gasket faces (cylinder head and rocker cover) must be clean, dry and free from grease (in par-
ticular, remove finger marks).
3. Install cylinder head and tighten cylinder head bolts in the
numerical order as shown.
4. Turn all bolts 255 degrees clockwise (angle tightening) in the
numerical order as shown.
CAUTION:
Check and confirm the tightening angle by using the angle
wrench [SST: KV10112100 ( — )] or protractor. Avoid judg-
ment by visual inspection without the tool.
5. Install in the reverse order of removal after this step.
Disassembly and AssemblyINFOID:0000000001381510
DISASSEMBLY
1. Place the cylinder head on cylinder head stand [KV113B0200
(Mot. 1573) (commercial service tool) or equivalent tool].
CAUTION:
Pay strict attention to the rules regarding cleanliness. Refer
to EM-253, "
Precaution for Diesel Equipment".
2. Remove high pressure supply pump and related parts. Refer to EM-281, "
Removal and Installation".
3. Remove the injectors and glow plugs. Refer to EM-281, "
Removal and Installation" and EM-279,
"Removal and Installation".
4. Remove the vacuum pump and water outlet and thermostat assembly. Refer to EM-280, "
Removal and
Installation" and CO-68, "Removal and Installation".
5. Remove the front engine slinger, EGR assembly, air inlet pipe and exhaust manifold. Refer to EM-272,
"Removal and Installation" and EM-277, "Removal and Installation".
6. Remove the camshaft sprocket. Refer to EM-291, "
Removal and Installation".
7. Remove the camshaft brackets. Refer to EM-298, "
Removal and Installation".
8. Remove the tappets, noting their position.: 25.0 N·m (2.6 kg-m, 18 ft-lb)
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EM-308
< DISASSEMBLY AND ASSEMBLY >[K9K]
CYLINDER HEAD
9. Compress the valve springs using the valve lifter.
Remove the keys, upper cups and springs.
NOTE:
Before removing the valves and the valve stem seals, it is
vital to measure position “H” of one of the old seals in rela-
tion to the cylinder head using valve seal drift [KV113B0180
(Mot. 1511-01) (commercial service tool) or equivalent tool].
10. Install the push rod (A) of valve seal drift [KV113B0180 (Mot.
1511-01) (commercial service tool) or equivalent tool] on the
valve stem seal.
NOTE:
The inner diameter of the push rod must be identical to that
of the valve. In addition, the bottom of the push rod must
come into contact with the metal upper section of the valve
stem seal.
11. Install the guide tube (B) over the push rod until the guide tube
comes into contact with the cylinder head, locking the push rod
with the knurled wheel.
12. Remove the guide tube assembly plus push rod, being careful
not to loosen the knurled wheel.
13. Remove the valves and valve guide seals using the valve seal
remover [KV113B0090 (Mot. 1335) (commercial service tool) or
equivalent tool].
ASSEMBLY
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CYLINDER HEAD
EM-309
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1. Install new valves and grind them gently into their respective
seats. Clean all the parts thoroughly, mark them for identification
purposes, then carry out the refitting operation.
Lubricate the inside of the valve guide.
 It is imperative to fit the valve stem seals using valve seal drift
[KV113B0180 (Mot. 1511-01) (commercial service tool) or
equivalent tool].
NOTE:
Do not lubricate the valve stem seals before fitting them.
2. Place the valve in the cylinder head.
3. Place the barrel of valve seal drift [KV113B0180 (Mot. 1511-01)
(commercial service tool) or equivalent tool] over the valve stem
(the inner diameter of the barrel must be identical to the diame-
ter of the valve stem).
4. Keep the valve pressed against its seat.
5. Place the valve stem seal (not lubricated) over the tool barrel.
6. Push the valve stem seal past the tool barrel, then withdraw the
barrel.
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EM-310
< DISASSEMBLY AND ASSEMBLY >[K9K]
CYLINDER HEAD
7. Place the guide tube plus push rod assembly on the valve stem
seal.
8. Push the valve stem seal down by tapping the top of the sleeve
with the palm of your hand until the guide tube touches the cylin-
der head.
9. Repeat these operations for all the valves.
10. Install the valve springs and upper cups using valve spring com-
pressor.
11. Install the keys using tweezers.
12. Install in the reverse order of removal after this step.
CleaningINFOID:0000000001381511
 It is very important not to scratch the gasket faces of any aluminium components.
 Use suitable tool to dissolve any part of the seal which remains stuck to the metal surface.
 Apply the dissolving product to the part to be cleaned, wait approximately 10 minutes, then remove it using a
wooden spatula.
 Wear gloves while carrying out this operation.
 Do not allow this dissolving product to drip on to the paintwork.
Great care should be taken when performing this operation, to prevent foreign objects from entering
the pipes taking oil under pressure to the camshafts (pipes in both the cylinder head and its cover)
and the oil return pipes.
Failure to follow these instructions could lead to the blocking of the oilways, resulting in rapid and
serious damage to the engine.
InspectionINFOID:0000000001381512
INSPECTION AFTER REMOVAL
Cylinder Head Distortion
NOTE:
When performing this inspection, cylinder block distortion should be also checked. Refer to EM-330, "
Inspec-
tion".
1. Wipe off engine oil and remove water scale (like deposit), gasket, sealant, carbon, etc. with a scraper.
CAUTION:
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CYLINDER HEAD
EM-311
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Use utmost care not to allow gasket debris to enter passages for engine oil or water.
2. At each of several locations on bottom surface of cylinder head, measure the distortion in six directions
using straightedge and feeler gauge.
 If it exceeds the limit, replace cylinder head.
Cylinder Head Height
Measure the height of cylinder head (H).
Valve protrusion
Check the valve protrusion using dial gauge stand set [KV113B0040
(Mot. 251-01) (commercial service tool) or equivalent tool] and dial
gauge stand set [KV113B0050 (Mot. 252-01) (commercial service
tool) or equivalent tool] as shown.
INSPECTION AFTER DISASSEMBLY
Va l v e
Measure the valves as follows.
 Stem diameter (d)
 Face angle (α)
 Head diameter (D)
 Valve length (L)
 Valve margin (T)Limit : Refer to EM-335, "
CylinderHead".
Standard : Refer to EM-335, "
CylinderHead".
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Standard : −0.07 to 0.07 mm (−0.0028 to 0.0028 in)
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Intake : Refer to EM-335, "CylinderHead"
Exhaust : Refer to EM-335, "CylinderHead"
Intake : Refer to EM-335, "CylinderHead"
Exhaust : Refer to EM-335, "CylinderHead"
Intake : Refer to EM-335, "CylinderHead"
Exhaust : Refer to EM-335, "CylinderHead"
Intake : Refer to EM-335, "CylinderHead"
Exhaust : Refer to EM-335, "CylinderHead"
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EM-312
< DISASSEMBLY AND ASSEMBLY >[K9K]
CYLINDER HEAD
Va l v e S e a t
Measure the valve seats as follows.
 Seat angle (α)
 Contacting width (X)
 Seat outer diameter (D):
 Cylinder head seat recess diameter (D)
Valve Guide Clearance
1. Measure diameter of valve stem with micrometer.
2. Measure inner diameter of valve guide with inside micrometer.
3. Calculate the valve guide clearance.
(Valve guide clearance) = (Valve guide inner diameter) – (Valve
stem diameter)
 If it exceeds the limit, replace and/or valve guide.
Valve Spring
Measure the valve spring as follows.
 Free height
 Length under load
 Full pressed height
 Wire diameter
 Inner diameter
 Outer diameterIntake : Refer to EM-335, "
CylinderHead"
Exhaust : Refer to EM-335, "CylinderHead"
Intake : Refer to EM-335, "CylinderHead"
Exhaust : Refer to EM-335, "CylinderHead"
Intake : Refer to EM-335, "CylinderHead"
Exhaust : Refer to EM-335, "CylinderHead"
Intake : Refer to EM-335, "CylinderHead"
Exhaust : Refer to EM-335, "CylinderHead"
Intake : Refer to EM-335, "CylinderHead"
Exhaust : Refer to EM-335, "CylinderHead"
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Intake : 0.020 - 0.050 mm (0.0008 - 0.0020 in)
Exhaust : 0.030 - 0.063 mm (0.0012 - 0.0025 in)
SEM938C
Intake and exhaust : Refer to EM-335, "CylinderHead"
Intake and exhaust : Refer to EM-335, "CylinderHead"
Intake and exhaust : Refer to EM-335, "CylinderHead"
Intake and exhaust : Refer to EM-335, "CylinderHead"
Intake and exhaust : Refer to EM-335, "CylinderHead"
SEM113

CYLINDER HEAD
EM-313
< DISASSEMBLY AND ASSEMBLY >[K9K]
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 SquarenessIntake and exhaust : Refer to EM-335, "
CylinderHead"
Intake and exhaust : Refer to EM-335, "CylinderHead"