2010 NISSAN LATIO Service Repair Manual

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Page 2537 of 3745

NISSAN LATIO 2010 Service Repair Manual EM-178
< SERVICE INFORMATION >[MR18DE]
OIL SEAL
OIL SEAL
Removal and Installation
of Valve Oil SealINFOID:0000000005398134
REMOVAL
1. Remove camshafts. Refer to EM-166, "Component".
2. Remove valve

Page 2538 of 3745

NISSAN LATIO 2010 Service Repair Manual OIL SEALEM-179
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• Front fender protector (RH). Refer to EI-24.
• Drive belt. Refer to EM-132, "
Component".
• Crankshaft pulley.

Page 2539 of 3745

NISSAN LATIO 2010 Service Repair Manual EM-180
< SERVICE INFORMATION >[MR18DE]
OIL SEAL
2. Install rear oil seal so that each seal lip is oriented as shown.
• Install rear oil seal with a suitable tool with an outer diameter115 mm (4.53 i

Page 2540 of 3745

NISSAN LATIO 2010 Service Repair Manual CYLINDER HEADEM-181
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CYLINDER HEAD
On-Vehicle ServiceINFOID:0000000005398137
CHECKING COMPRESSION PRESSURE
1. Warm up engine thoroughly.

Page 2541 of 3745

NISSAN LATIO 2010 Service Repair Manual EM-182
< SERVICE INFORMATION >[MR18DE]
CYLINDER HEAD
• If the engine speed is out of the specified range, c
heck battery liquid for proper gravity. Check engine
speed again with normal battery gravi

EM-182
< SERVICE INFORMATION >[MR18DE]
CYLINDER HEAD
• If the engine speed is out of the specified range, c
heck battery liquid for proper gravity. Check engine
speed again with normal battery gravity.
• If compression pressure is below minimum val ue, check valve clearances and parts associated with
combustion chamber (Valve, valve seat, piston, pi ston ring, cylinder bore, cylinder head, cylinder head
gasket). After the checking, measure the compression pressure again.
• If one 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, pi ston 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. Repl ace valve or valve seat accordingly.
• If two adjacent cylinders have respectively low co mpression 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.
9. After inspection is completed, install removed parts.
10. Start the engine, and confirm that the engine runs smoothly.
11. Perform trouble diagnosis. If DTC appears, erase it. Refer to EC-585, "
Trouble Diagnosis Introduction".
ComponentINFOID:0000000005398138
Removal and InstallationINFOID:0000000005398139
REMOVAL
WARNING:
• Put a “CAUTION: FLAMMABLE” sign in the workshop.
• Be sure to work in a well ventilate d area and furnish workshop with a CO
2 fire extinguisher.
• Do not smoke while servicing fuel system. Keep open flames and sparks away from the work area.
1. Release the fuel pressure. Refer to EC-582, "
Fuel Pressure Check".
2. Drain engine coolant and engine oil. Refer to CO-36
and LU-17.
CAUTION:
• Perform this step when the engine is cold.
• Never spill engine coolant an d engine oil on drive belt.
3. Remove front fender protector (RH). Refer to EI-24
.
4. Remove drive belt. Refer to EM-132, "
Removal and Installation".
5. Remove the following components and related parts.
1. Cylinder head assembly 2. Cylinder head bolt 3. Cylinder head gasket
A. Refer to EM-182
PBIC3542J
Revision: January 20102010 Versa

Page 2542 of 3745

NISSAN LATIO 2010 Service Repair Manual CYLINDER HEADEM-183
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• Exhaust manifold. Refer to
EM-140.
• Intake manifold. Refer to EM-137
.
• Fuel tube and fuel injector ass

Page 2543 of 3745

NISSAN LATIO 2010 Service Repair Manual EM-184
< SERVICE INFORMATION >[MR18DE]
CYLINDER HEAD
3. Install cylinder head, follow the steps below to tighten cylinder
head bolts in numerical order as shown.
: Engine front
CAUTION:
Check and conf

Page 2544 of 3745

NISSAN LATIO 2010 Service Repair Manual CYLINDER HEADEM-185
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Disassembly and AssemblyINFOID:0000000005398141
DISASSEMBLY
1. Remove spark plug using suitable tool.
2. Remove val

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