Nissan Tiida C11. Instruction — part 682
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CYLINDER HEAD
CYLINDER HEAD
Removal and Installation
INFOID:0000000001381421
REMOVAL
1.
Release fuel pressure. Refer to
(EURO-OBD),
(WITHOUT
EURO-OBD).
2.
Drain engine coolant and engine oil. Refer to
CO-11, "Changing Engine Coolant"
.
CAUTION:
• Perform this step when the engine is cold.
• Never spill engine coolant and engine oil on drive belt.
3.
Remove the following components and related parts.
• Front fender protector (RH): Refer to
EXT-22, "Removal and Installation"
• Generator: Refer to
CHG-15, "Removal and Installation"
• Exhaust front tube: Refer to
.
• Exhaust manifold: Refer to
• Intake manifold: Refer to
• Fuel tube and fuel injector: Refer to
.
• Water outlet: Refer to
CO-24, "Removal and Installation"
• Drive belt: Refer to
EM-16, "Removal and Installation"
• Front cover: Refer to
• Camshaft: Refer to
.
4.
Remove cylinder head loosening bolts in reverse order as
shown with cylinder head wrench (commercial service tool).
1.
Cylinder head assembly
2.
Cylinder head bolt
3.
Washer
4.
Cylinder head gasket
A.
Refer to
PBIC3731E
A
: EXH side
B
: INT side
: Engine front
PBIC3732E
CYLINDER HEAD
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5.
Remove cylinder head gasket.
INSPECTION AFTER REMOVAL
Cylinder Head Bolts Outer Diameter
• Cylinder head bolts are tightened by plastic zone tightening
method. Whenever the size difference between “d1” and “d2”
exceeds the limit, replace them with a new one.
• If reduction of outer diameter appears in a position other than “d2”,
use it as “d2” point.
Cylinder Head Distortion
NOTE:
When performing this inspection, cylinder block distortion should be also checking. Refer to
.
1.
Wipe off engine oil and remove water scale (like deposit), gasket, sealant, carbon, etc. with a scraper.
CAUTION:
Never allow gasket debris to enter passages for engine oil or engine coolant.
2.
At each of several locations on bottom surface of cylinder head,
measure the distortion in six directions.
• If it exceeds the limit, replace cylinder head.
INSTALLATION
1.
Install new cylinder head gasket.
2.
Tighten cylinder head bolts in numerical order as shown with the
following procedure to install cylinder head.
CAUTION:
If cylinder head bolts are re-used, check their outer diame-
ters before installation. Follow the “Cylinder Head Bolts
Outer Diameter” measurement procedure.
a.
Apply new engine oil to threads and seating surfaces of mount-
ing bolts.
b.
Tighten all bolts.
c.
Completely loosen.
CAUTION:
Limit (“d1”–“d2”): 0.15 mm (0.0059 in)
PBIC3717E
A
: Straightedge
B
: Feeler gauge
Limit
: Refer to
PBIC3207J
A
: EXH side
B
: INT side
: Engine front
: 66.7 N·m (6.8 kg-m, 49 ft-lb)
: 0 N·m (0 kg-m, 0 ft-lb)
PBIC3732E
EM-82
< ON-VEHICLE REPAIR >
[HR16DE]
CYLINDER HEAD
In this step, loosen bolts in reverse order of that indicated.
d.
Tighten all bolts.
e.
Turn all bolts 75 degrees clockwise (angle tightening).
CAUTION:
Check and confirm the tightening angle by using the angle
wrench [SST: KV10112100] (A) or protractor. Avoid judg-
ment by visual inspection without the tool.
f.
Turn all bolts 75 degrees clockwise again (angle tightening).
3.
Installation is in the reverse order of removal, for the remaining parts.
INSPECTION AFTER INSTALLATION
Inspection for Leaks
• Before starting engine, check oil/fluid levels including engine coolant and engine oil. If less than required
quantity, fill to the specified level. Refer to
MA-19, "Fluids and Lubricants"
.
• Use procedure below to check for fuel leakage.
- Turn ignition switch “ON” (with engine stopped). With fuel pressure applied to fuel piping, check for fuel leak-
age at connection points.
- Start engine. With engine speed increased, check again for fuel leakage at connection points.
• Run engine to check for unusual noise and vibration.
• Warm up engine thoroughly to make sure there is no leakage of fuel, exhaust gases, or any oil/fluids includ-
ing engine oil and engine coolant.
• Bleed air from lines and hoses of applicable lines, such as in cooling system.
• After cooling down engine, again check oil/fluid levels including engine oil and engine coolant. Refill to the
specified level, if necessary.
Summary of the inspection items:
*: Transmission/transaxle/CVT fluid, power steering fluid, brake fluid, etc.
Disassembly and Assembly
INFOID:0000000001381422
: 40.0 N·m (4.1 kg-m, 30 ft-lb)
PBIC3733E
Items
Before starting engine
Engine running
After engine stopped
Engine coolant
Level
Leakage
Level
Engine oil
Level
Leakage
Level
Other oils and fluid*
Level
Leakage
Level
Fuel
Leakage
Leakage
Leakage
Exhaust gases
—
Leakage
—
CYLINDER HEAD
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DISASSEMBLY
1.
Remove spark plug with a spark plug wrench (commercial service tool).
2.
Remove valve lifter.
• Identify installation positions, and store them without mixing them up.
3.
Remove valve collet.
• Compress valve spring with the valve spring compressor, the
attachment and the adapter [SST: KV10116200] (A). Remove
valve collet with a magnet hand (B).
CAUTION:
Be careful not to damage valve lifter holes.
4.
Remove valve spring retainer and valve spring.
5.
Push valve stem to combustion chamber side, and remove valve.
• Identify installation positions, and store them without mixing them up.
1.
Spark plug
2.
Valve collet
3.
Valve spring retainer
4.
Valve spring
5.
Valve spring seat
6.
Valve oil seal
7.
Valve guide (EXH)
8.
Valve guide (INT)
9.
Cylinder head
10. Valve seat (EXH)
11.
Valve (EXH)
12. Valve seat (INT)
13. Valve
(INT)
A.
Refer to
B.
Refer to
PBIC3734E
PBIC3727E
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