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• Attach tags to valve lifters so as not to mix them up.
DISASSEMBLY
1. Remove spark plug.
2. Remove valv NISSAN TEANA 2014 Service Manual
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• Attach tags to valve lifters so as not to mix them up.
DISASSEMBLY
1. Remove spark plug.
2. Remove valv](/manual-img/5/57390/w960_57390-2208.png)
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• Attach tags to valve lifters so as not to mix them up.
DISASSEMBLY
1. Remove spark plug.
2. Remove valve lifter. • Identify installation positions, and store them without mixing them up.
3. Remove valve collet. • Compress valve spring and remove valve collet with magnet
hand using Tool.
CAUTION:
When working, take care not to damage valve lifter holes.
4. Remove valve spring retainer, valve spring and valve spring seat.
5. Push valve stem to combustion chamber side, and remove valve. • Identify installation positions, and store them without mixing them up.
6. Remove valve oil seals using Tool.
7. If valve seat must be replaced, refer to EM-212, "Inspection After Disassembly"
.
8. If valve guide must be replaced, refer to EM-212, "Inspection After Disassembly"
.
9. Remove spark plug tube, as necessary. • Using pair of pliers, pull spark plug tube out of cylinder head.
CAUTION:
• Take care not to damage cylinder head.
• Once removed, spark plug tube will be deforme d and cannot be reused. Do not remove it unless
absolutely necessary.
ASSEMBLY
1. When valve guide is removed, install it. Refer to EM-212, "Inspection After Disassembly".
2. When valve seat is removed, install it. Refer to EM-212, "Inspection After Disassembly"
.
3. Install valve oil seals using Tool.
4. Install valve spring seat.
5. Install valves. • Install it in the original position.
NOTE:
Larger diameter valves are for intake side. Tool numbers : KV10109230 ( — )
: KV10116200 (J-26336-A)
: KV10115900 (J-26336-20)
WBIA0578E
Tool number : KV10107902 (J-38959)
WBIA0489E
Tool number : — (J-39386)
Height (H) (Without valve spring seat installed) Intake and exhaust : 14.3 - 14.9 mm (0.563 - 0.587 in)
WBIA0490E
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6. Install valve spring (uneven pitch type) with narrow pitch end
(paint mark) to cylinder head side (valve spring seat side).
7. Install val NISSAN TEANA 2014 Service Manual
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CYLINDER HEAD
6. Install valve spring (uneven pitch type) with narrow pitch end
(paint mark) to cylinder head side (valve spring seat side).
7. Install val](/manual-img/5/57390/w960_57390-2209.png)
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CYLINDER HEAD
6. Install valve spring (uneven pitch type) with narrow pitch end
(paint mark) to cylinder head side (valve spring seat side).
7. Install valve spring retainer.
8. Install valve collet. • Compress valve spring with valve spring compressor, attach-
ment and adapter using Tool. Install valve collet with magnet
hand.
CAUTION:
When working, take care not to damage valve lifter holes.
• Tap valve stem edge lightly with plastic hammer after installa-
tion to check its installed condition.
9. Install valve lifter. • Install it in the original position.
10. Install spark plug tube, if removed. • Press-fit spark plug tube as follows:
a. Remove old liquid gasket adhering to cylinder head mounting hole.
b. Apply sealant to area within approximately 12 mm (0 .47 in) from edge of spark plug tube press-fit side.
Use Genuine High Strength Locking Sealant or equivalent. Refer to EM-124, "Precaution for Liquid
Gasket".
c. Press-fit spark plug tube so that its height (H) is as specified in using suitable tool.
CAUTION:
• When press-fitting, take care not to deform spark plug tube.
• After press-fitting, wipe off liquid gasket protruding onto
cylinder-head upper face.
11. Install spark plug. Refer to EM-132, "Removal and Installation"
.
Inspection After DisassemblyINFOID:0000000009460577
CYLINDER HEAD DISTORTION
Clean the surface of the cylinder head. Use a reliabl e straightedge and feeler gauge to check the flatness of
cylinder head surface.
SEM085D
Tool numbers : KV10109230 ( — )
: KV10116200 (J-26336-A)
: KV10115900 (J-26336-20)
WBIA0578E
Press-fit height (H) : 37.7 - 39.1 mm (1.484 - 1.529 in)
PBIC2638E
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Check along six positions as shown.
If beyond the specified limit, resurface or replace it.
The limit for NISSAN TEANA 2014 Service Manual
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Check along six positions as shown.
If beyond the specified limit, resurface or replace it.
The limit for](/manual-img/5/57390/w960_57390-2210.png)
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Check along six positions as shown.
If beyond the specified limit, resurface or replace it.
The limit for cylinder head resurf acing is determined by the cyl-
inder block resurfacing.
After resurfacing cylinder head, check that camshaft rota tes freely by hand. If resistance is felt, cylinder head
must be replaced.
VALVE GUIDE CLEARANCE
1. Measure valve deflection as shown. (Valve and valve guide mostly wear in this direction.)
2. If it exceeds the limit, check valve to valve guide clearance.
a. Measure valve stem diameter and valve guide inner diameter. Refer to EM-249, "Cylinder Head"
.
b. Check that clearance is within specification. (Valve guide clearance) = (Valve guide inner diameter) - (Valve
stem diameter)
c. If it exceeds the limit, replace valve or valve guide.
VALVE GUIDE REPLACEMENT
When valve guide is removed, replace with oversized [0.2 mm (0.008 in)] valve guide.
Head surface distortion
Limit : 0.1 mm (0.004 in)
Standard : Less than 0.03 mm (0.0012 in)
Resurfacing Limit
Amount of cylinder head resurfacing is (A).
Amount of cylinder block resurfacing is (B).
The maximum limit : A + B = 0.2 mm (0.008 in)
Nominal cylinder head height : 126.3 - 126.5 mm (4.972 - 4.980 in)
SEM861E
Valve deflection limit (dial gauge reading)
Intake : 0.24 mm (0.0094 in)
Exhaust : 0.28 mm (0.0110 in)
SEM178F
Valve to valve guide clearance standard
Intake : 0.020 - 0.053 mm (0.0008 - 0.0021 in)
Exhaust : 0.040 - 0.073 mm (0.0016 - 0.0029 in)
Valve to valve guide clearance limit
Intake : 0.08 mm (0.0031 in)
Exhaust : 0.1 mm (0.004 in)
SEM938C
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1. To remove valve guide, heat cylinder head to 110
° to 130 °C
(230 ° to 266 °F) by soaking in heated oil.
WARNING:
Cylinder head contains heat. When working, wear protective
equipment to avoid getting burned.
2. Drive out the valve guide with a press [under a 20 kN (2.2 US ton) pressure] or hammer and suitable tool.
3. Ream cylinder head valve guide hole.
4. Heat cylinder head to 110 ° to 130 °C (230 ° to 266 °F) by soaking
in heated oil and press new valve guide from camshaft side into
the cylinder head to the dimensions as shown.
WARNING:
Cylinder head contains heat . When working, wear protec-
tive equipment to avo id getting burned.
SEM008A
SEM931C
Valve guide hole diameter
(for service parts), intake
and exhaust : 10.175 - 10.196 mm
(0.4006 - 0.4014 in)
SEM932C
Projection (L) : 12.6 - 12.8 mm (0.496 - 0.504 in)
SEM950E
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5. Using a valve guide reamer, apply a reamer finish to the valve
guide.
VALVE SEAT CONTACT
• After confir NISSAN TEANA 2014 Service Manual
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5. Using a valve guide reamer, apply a reamer finish to the valve
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VALVE SEAT CONTACT
• After confir](/manual-img/5/57390/w960_57390-2212.png)
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5. Using a valve guide reamer, apply a reamer finish to the valve
guide.
VALVE SEAT CONTACT
• After confirming that the dimensions of valve guides and valves are
within specifications, perform this procedure.
• Apply prussian blue onto contacting surface of valve seat to check the condition of the valve contact on the surface.
• Check if the contact area band is continuous all around the circum- ference.
• If not, grind to adjust valve fitti ng and check again. If the contacting
surface still has NG conditions even after the re-check, replace
valve seat.
VALVE SEAT REPLACEMENT
1. Bore out old seat until it collapses. Boring should not continue beyond the bottom face of the seat recess in cylinder head. Set
the machine depth stop to ensure this.
2. Ream cylinder head recess for service valve seat.
Be sure to ream in circles co ncentric to the valve guide cen-
ter.
This will enable valve seat to fit correctly.
3. Heat cylinder head to 110 ° to 130 °C (230 ° to 266 °F) by soaking
in heated oil.
WARNING:
Cylinder head contains heat . When working, wear protec-
tive equipment to avo id getting burned.
4. Press fit valve seat until it seats on the bottom.
5. Cut or grind valve seat using suitable t ool to the specified dimensions. Refer to EM-249, "Cylinder Head"
.
6. After cutting, lap valve seat with abrasive compound.
7. Check valve seating condition. Intake and exhaust
finished size : 6.000 - 6.018 mm
(0.2362 - 0.2369 in)
SEM932C
SBIA0322E
Oversize : 0.5 mm (0.020 in)
Intake : 38.500 - 38.516 mm (1.5157 - 1.5164 in)
Exhaust : 32.100 - 32.116 mm (1.2638 - 1.2644 in)
SEM795A
SEM008A
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8. Use a depth gauge to measure the distance between the mount-
ing surface of the cylinder head spring seat and the valve stem
end. If the NISSAN TEANA 2014 Service Manual
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8. Use a depth gauge to measure the distance between the mount-
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end. If the](/manual-img/5/57390/w960_57390-2213.png)
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8. Use a depth gauge to measure the distance between the mount-
ing surface of the cylinder head spring seat and the valve stem
end. If the distance is shorter than specified, repeat step 5 to
adjust it. If it is longer, replace the valve seat with a new one.
VALVE SPRING SQUARENESS
Set try square along the side of valve spring and rotate the spring.
Measure the maximum clearance between the top face of spring and
try square.
VALVE SPRING DIMENSIONS AND VALVE SPRING PRESSURE LOAD
Check valve spring pressure at specified spring height.
If it is not within specif ications, replace the spring.
Seat face angle
α : 45° 15' - 45 ° 45' de-
grees/minutes
Contacting width (W) fo r intake : 1.18 - 1.22 mm
(0.0465 - 0.0480 in)
Contacting width (W) fo r exhaust : 1.38 - 1.42 mm
(0.0543 - 0.0559 in)
SEM892B
Valve seat resurface limit (L)
intake : 41.16 - 41.76 mm
(1.6205 - 1.6441 in)
Valve seat resurface limit (L)
exhaust : 41.09 - 41.69 mm
(1.6177 - 1.6413 in)
SEM621F
Out-of-square limit : L ess than 2.0 mm (0.079 in)
PBIC0080E
Standard : 166 - 188 N (16.9 - 19.2 kg, 37.3 - 42.3 lb) at
height 37.0 mm (1.457 in)
Limit : 373 - 421 N (38.0 - 42.9 kg, 84 - 95 lb) at height 27.2 mm (1.071 in)
SEM113
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ENGINE MOUNT
ENGINE MOUNT (FRONT)
ENGINE MOUNT (FRONT) : Removal and InstallationINFOID:0000000009460578
WARN NISSAN TEANA 2014 Service Manual
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ENGINE MOUNT (FRONT)
ENGINE MOUNT (FRONT) : Removal and InstallationINFOID:0000000009460578
WARN](/manual-img/5/57390/w960_57390-2214.png)
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ENGINE MOUNT
ENGINE MOUNT (FRONT)
ENGINE MOUNT (FRONT) : Removal and InstallationINFOID:0000000009460578
WARNING:
• Situate the vehicle on a flat and solid surface.
• Place chocks at front and back of rear wheels.
• Always work safely.
• Do not start work until the engine an d exhaust system are cooled completely.
CAUTION:
Do not damage or spill oil on the engine mount insulator (front).
NOTE:
When removing components such as hoses, tubes/lines, etc. , cap or plug openings to prevent fluid from spill-
ing.
REMOVAL
1. Remove the air cleaner assembly, front air duct, and air duct hose and resonator assembly. Refer to EM-
144, "Removal and Installation".
2. Remove the battery and battery tray assembly. Refer to PG-74, "Removal and Installation (Battery Tray)"
.
3. Remove the engine under cover. Refer to EXT-28, "Removal and Installation"
.
4. Remove the fender protector side covers (RH/LH). Refer to EXT-26, "FENDER PROTECTOR : Removal
and Installation".
5. Partially remove the fender protectors (RH/LH). Refer to EXT-26, "FENDER PROTECTOR : Removal and
Installation".
6. Remove the radiator. Refer to CO-41, "Removal and Installation"
.
7. Remove the cooling fan shroud and motor assembly. Refer to CO-42, "Removal and Installation"
.
8. Remove the exhaust manifold heat shield (LH). Refer to EM-153, "Removal and Installation (RH)"
.
9. Support the engine (1) and transaxle (2) using a suitable jack (A) as shown.
CAUTION:
• Position a suitable jack under the engine and transaxle
assembly as shown.
• Do not damage the front exhau st tube or transaxle oil pan
with the jack.
10. Disconnect the engine mounting insulator (front) vacuum hose.
11. Remove the engine mounting insulator (front) nut (A).
ALBIA0894GB
AWBIA1241GB
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12. Loosen the engine mounting bracket (front) bolts in the reverse
order shown.
13. Remove the engine mounting bracket (front).
14. Remove the engine mounting insulator (front) bolts in the reverse order as shown.
15. Remove the engine mounting insulator (front).
INSTALLATION
1. Install the engine mounting insulator (front).
: Engine front
JPBIA1731ZZ
:Front
JPBIA1735ZZ
AWBIA1242GB
AWBIA1242GB
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