NISSAN TEANA 2014 Service Manual

OIL SEALEM-73
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• Press fit new oil seal straight using a suitable tool (A) to avoid
tilting the seal or causing burrs.
• Press in the new rear oil seal (1) to the position (b) shown.
2. Installation of the remaining components is in the reverse order of removal.
ALBIA0866GB
(b) : 0 - 0.5 mm (0 - 0.020 in)
(A) : Rear surface of cylinder block
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EM-74
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CYLINDER HEAD
CYLINDER HEAD
Exploded ViewINFOID:0000000009460503
Removal and InstallationINFOID:0000000009460504
REMOVAL
1. Remove the timing chain. Refer to
EM-62, "Removal and Installation".
2. Remove the camshafts. Refer to EM-47
.
3. Remove spark plugs. Refer to EM-16, "Removal and Installation"
.
4. Remove the intake manifold. Refer to EM-30, "Removal and Installation"
.
5. Remove the exhaust manifold and three way catalyst. Refer to EM-33, "Removal and Installation"
.
6. Loosen the cylinder head bolts in the reverse order shown, using power tool.
7. Remove cylinder head.
8. Remove cylinder head gasket.
INSPECTION AFTER REMOVAL
Outer Diameter of Cylinder Head Bolts
1. Cylinder head 2. Cylinder head gasket 3. Cylinder head bolt
A. Refer to INSTALLATION
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: Engine front
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CYLINDER HEADEM-75
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• Replace the cylinder heads bolts with new ones if the size differ-
ence between d1 and d2 exceeds the limit.
• If reduction of outer diameter appears in a position other than d2, use it as d2 point.
INSTALLATION
1. Clean surfaces of cylinder head and cylinder block.
2. Install a new cylinder head gasket. CAUTION:
Do not reuse cylinder head gasket.
3. Install the cylinder head.
4. Follow the steps below to tighten the cylinder head bolts in the numerical order as shown. • Clean threads and seating surfaces of bolts.
• Apply new engine oil to the threads and the seating surfaces of bolts.
CAUTION:
• If cylinder head bolts are re-used, check their ou ter diameters before installation. Follow the
Outer Diameter of Cylinder H ead Bolts measurement procedure.
• Check and confirm the tighte ning angle by using angle
wrench or protractor. Do not judge angle by visual inspec-
tion.
5. Installation of the remaining components is in the reverse order of removal. Limit (d1 - d2) : 0.23 mm (0.0091 in) or more
KBIA0189E
Tool number (A) : KV10112100 (BT-8653-A)
PBIC3208J
Step a : 50 N·m (5.1 kg-m, 37 ft-lb) in order
Step b : 60 ° clockwise in order
Step b : Loosen to 0 N·m in order
Step c : 39.2 N·m (4.0 kg-m, 29 ft-lb) in order
Step d : 75 ° clockwise in order
Step e : 75 ° clockwise in order
: Engine frontAWBIA1325GB
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EM-76
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CYLINDER HEAD
Disassembly and Assembly
INFOID:0000000009460505
CAUTION:
• When installing camshafts, chain tensioners, oil seals or other sliding parts, lubricate contacting
surfaces with new engine oil.
• Apply new engine oil to threads and seat surf aces when installing the cylinder head, camshaft
sprocket, crankshaft pulley and camshaft bracket.
• Attach tags to valve lifters so all parts are assembled in their original position.
CAUTION:
Read PRECAUTION carefully.
The exhaust valve contains metallic sodium. Therefore, extreme caution must be taken when handling
and disposing of the exhaust valve. Refer to EM-5, "Special Cautions to Ensure the Safe Disposal of
Sodium-filled Exhaust Valves".
DISASSEMBLY
1. Remove the valve lifter.
NOTE:
Confirm installation point to return valve lifter to original location during assembly.
2. Remove valve collet.
1. Valve collet 2. Valve spring retainer 3. Valve spring
4. Valve oil seal 5. Valve guide 6. Cylinder head
7. Valve seat (INT) 8. Valve (INT) 9. Valve (EXH)
10. Valve seat (EXH) 11. Spark plug tube L. Apply thread locking sealant
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CYLINDER HEADEM-77
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• Compress valve spring using Tools. Remove valve collet with
a magnet hand.
CAUTION:
• Be careful not to damage valve lifter holes.
• Install tool (A) in the center of valve spring retainer to press it.
3. Remove valve spring retainer and valve spring (with valve spring seat). CAUTION:
Do not remove valve spring seat from valve spring.
4. Push valve stem to combustion chamber side, and remove valve. • Inspect valve guide clearance before removal. Refer to EM-78, "Inspection After Disassembly"
.
• Confirm installation point to return valve to original location during assembly.
5. Remove valve oil seal using Tool (A).
6. When valve seat must be replaced, refer to EM-78, "Inspection After Disassembly"
.
7. When valve guide must be replaced, refer to EM-78, "Inspection After Disassembly"
.
8. Remove spark plug tubes, if necessary, using suitable tool. CAUTION:
• Be careful not to damage cylinder head.
• Do not remove spark plug tube if not necessary . Once removed, the spark plug tube cannot be
reused because of deforma tion during removal.
ASSEMBLY
1. Install valve guide. Refer to EM-78, "Inspection After Disassembly".
2. Install valve seat. Refer to EM-78, "Inspection After Disassembly"
.
3. Apply new engine oil to new valve oil seal joint surface and seal lip. Tool number (A) : KV10116200 (J-26336-A)
Tool number (B) : KV10109220 ( — )
Tool number (C) : KV10115900 (J-26336-20)
JPBIA1365ZZ
Tool number : KV10115900 (J-26336-20)
(1) : Valve spring retainer
JPBIA4477ZZ
Tool number : KV10107902 (J-38959)
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EM-78
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CYLINDER HEAD
4. Install new valve oil seal using Tool (A) as shown.
5. Install valve. • Install larger diameter to intake side.
6. Install valve spring with valve spring seat (1). • Install valve spring so that the identification color faces upward
(A).
• Install smaller pitch to cylinder head side (B).
• Confirm the identification color of the valve spring.
• Intake: white
• Exhaust: light blue
7. Install valve spring retainer.
8. Install valve collet. • Compress valve spring using Tools. Install valve collet with amagnet hand.
CAUTION:
When working take care not to damage valve lifter holes.
• Tap valve stem edge lightly with a plastic hammer after instal-
lation to check its installed condition.
9. Install valve lifter.
10. Install spark plug tube.
a. Remove old liquid gasket from cylinder head mounting hole.
b. Apply liquid gasket all around on spark plug tube with a 12 mm (0.47 in) width from edge of spark plug tube on the press fit side.
• Use Three Bond or equivalent. Refer to GI-21, "Recom-
mended Chemical Products and Sealants".
c. Press fit spark plug tube so that height (H) is as shown.
CAUTION:
• When press fitting be careful not to deform spark plug
tube.
• After press fitting, wipe off any protruding liquid gasket on top surface of cylinder head.
Inspection After DisassemblyINFOID:0000000009460506
CYLINDER HEAD DISTORTION
Oil seal installed height (H) : 12.1 mm (0.476 in)
Tool number : KV10115600 (J-38958)
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Tool number (A) : KV10116200 (J-26336-A)
Tool number (B) : KV10109220 ( — )
Tool number (C) : KV10115900 (J-26336-20)
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Press fit height (H) standard value : 41.7 mm (1.642 in)
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CYLINDER HEADEM-79
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1. Wipe off oil and remove water scale deposits, old gasket, old
sealer, and carbon with a scraper.
CAUTION:
Use care not to allow gasket debris to enter passages for oil
or water.
2. At each of several locations on bottom surface of cylinder head, measure distortion in six directi ons using suitable tools (A, B).
• If measurements exceed the limit, replace cylinder head.
VALVE DIMENSIONS
Check dimensions of each valve. Refer to EM-111, "Standard and Limit".
VALVE GUIDE CLEARANCE
• Measure diameter of valve stem using suitable tool (A) as shown.
• Measure inner diameter of valve guide with a bore gauge as shown.
• Valve guide clearance = (Valve guide inner diameter) - (Valve stem diameter)
• If it exceeds the limit, replace valve guide and/or va lve. When valve guide must be replaced, follow the
"VALVE GUIDE REPLACEMENT" procedure.
VALVE GUIDE REPLACEMENT
When valve guide is removed, replace with oversized (0.2 mm, 0.008 in) valve guide.
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. Wh en working, wear protective
equipment to avoid getting burned. Limit : 0.1 mm (0.004 in)
PBIC3207J
Standard
Intake : 5.965 - 5.980 mm (0.2348 - 0.2354 in)
Exhaust : 5.955 - 5.970 mm (0.2344 - 0.2350 in)
Standard
Intake and
Exhaust : 6.000 - 6.018 mm (0.2362 - 0.2369 in)
Valve guide clearance
Standard
Intake : 0.020 - 0.053 mm (0.0008 - 0.0021 in)
Exhaust : 0.030 - 0.063 mm (0.0012 - 0.0025 in)
Limit
Intake : 0.08 mm (0.003 in)
Exhaust : 0.09 mm (0.004 in)
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SEM008A
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EM-80
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CYLINDER HEAD
2. Drive out valve guide with a press [under 20 kN (2.2 ton-f) pres-
sure] or suitable tool.
3. Ream cylinder head valve guide hole using suitable reamer.
4. 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 protecti ve equipment to avoid getting burned.
5. Press valve guide from camshaft side to dimensions as shown.
6. Apply finish to valve guide using suitable reamer.
VALVE SEAT CONTACT
NOTE:
SEM931C
Intake and exhaust valve
guide hole diameter (Service) : Refer to
EM-111,
"Standard and Limit".
SEM932C
PBIC0078E
Intake and exhaust : Refer to EM-111, "Standard
and Limit".
SEM932C
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CYLINDER HEADEM-81
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After confirming that the dimensions of valve guides and valves are
within specifications, perform this procedure:
• Apply prussian blue (or white lead) onto contacting surface of valve
seat to check the condition of t he valve contact on the seat sur-
face.
• 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 the
valve seat.
VALVE SEAT REPLACEMENT
NOTE:
When valve seat is removed, replace with an oversized [0.5 mm (0.020 in)] valve seat.
1. Bore out old seat until it collapses. Boring shoul d not continue beyond the bottom face of the seat recess
in the cylinder head. Set the machine depth stop to ensure this.
2. Ream cylinder head recess diameter for service valve seat.
• Be sure to ream in circles concentric to the valve guide center.This will enable the 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. Use valve seats cooled well with dry ice. Force fit valve seat into cylinder head. CAUTION:
Avoid directly touching the cold valve seats.
5. Finish the seat to the specified dimensions using suitable tool. Refer to EM-111, "Standard and Limit"
.
CAUTION:
When using valve seat cutter, firmly grip the cutter handle
with both hands. Then, press on the contacting surface all
around the circumference to cu t in a single drive. Improper
pressure on the cutter or cutting many different times may
result in a defective valve seat.
6. Using compound, grind to adjust valve fitting.
7. Check again for normal contact.
SBIA0322E
Intake : 37.000 - 37.016 mm (1.4567 - 1.4573 in)
Exhaust : 32.000 - 32.016 mm (1.2598 - 1.2605 in)
SEM795A
SEM008A
SEM934C
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EM-82
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CYLINDER HEAD
VALVE SPRING SQUARENESS
Set try square (A) along the side of the valve spring and rotate the
spring. Measure the maximum clearance between the top face of the
spring and the try square.
CAUTION:
Do not remove the valve spring seat from the valve spring
NOTE:
If the valve spring exceeds the limi t, replace the valve spring with the
valve spring seat.
VALVE SPRING DIMENSIONS AND VALVE SPRING PRESSURE LOAD
Check valve spring pressure with valve spring seat installed at spec-
ified spring height. Replace if not within specifications.
CAUTION:
Do not remove the valve spring seat.
(B) : Contact
Limit : Refer to EM-111, "Standard and Limit".
JPBIA4391ZZ
Standard : Refer to EM-111, "Standard and Limit".
SEM113
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