NISSAN LATIO 2009 Service Repair Manual

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, che ck again for fuel leakage at connection points.
• Run engine to check for unusual noise and vibration. NOTE:
If hydraulic pressure inside timing chain tensioner drops after removal/installation, slack in the guide may
generate a pounding noise during and just after engine start. However, this is normal. Noise will stop after
hydraulic pressure rises.
• Warm up engine thoroughly to make sure there is no leakage of fuel, or any oil/fluids including 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.
Inspection of Camshaft Sprocket (INT) Oil Groove
CAUTION:
• Perform this inspection only when DTC P0011 is de tected in self-diagnostic results of CONSULT-III
and it is directed according to inspect ion procedure of EC section. Refer to EC-133, " Diagnosis Pro-
cedure " .
• Check when engine is cold so as to pr event burns from the splashing engine oil.
1. Check engine oil level. Refer to LU-7, " Inspection " .
2. Perform the following procedure so as to prevent the engine from being unintentionally started while
checking.
a. Release the fuel pressure. Refer to EC-498, " Inspection " .
b. Remove intake manifold. Refer to EM-28, " Exploded View " .
c. Disconnect ignition coil and injector harness connectors. Refer to EM-46, " Exploded View " .
3. Remove intake valve timing control solenoid valve. Refer to EM-49, " Exploded View " .
4. Crank engine, and then make sure that engine oil comes out from intake valve timing control solenoid valve hole (A). End
crank after checking.
WARNING:
Be careful not to touch rotating parts (drive belts, idler pul-
ley, and crankshaft pulley, etc.).
CAUTION:
• Prevent splashing by using a shop cloth so as to prevent
the worker from injury from engine oil an d so as to prevent engine oil contamination.
• Prevent splashing by using a shop cloth so as to prevent engine oil from being splashed to
engine and vehicle. Especially, be careful not to apply engine oil to rubber parts of drive belts,
engine mounting insulator, etc. Wipe engi ne oil off immediately if it is splashed.
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 1 : Plug
:Engine front

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5. Perform the following inspection if engine oil does not
come out from intake valve timing control solenoid
valve oil hole of the cylinder head.
• Remove oil filter, and then clean it. Refer to EM-70, " Inspection " .
• Clean oil groove between oil strainer and intake valve timing control solenoid valve. Refer to LU-6," Engine Lubrication System " and
LU-6, " Engine Lubrication System Schematic " .
6. Remove components between intake valve timing control solenoid valve and camshaft sprocket (INT), and then check each oil groove for clogging.
• Clean oil groove if necessary. Refer to LU-6, " Engine Lubrication System " and
LU-6, " Engine Lubrica-
tion System Schematic " .
7. After inspection, installation is in the reverse order of removal.

Exploded View " .
2. Remove valve lifters. Refer to EM-58, " Exploded View " .
3. Rotate crankshaft, and set piston whose valve oil seal is to be removed to TDC. This will prevent valve from dropping into cylinder.
CAUTION:
When rotating crankshaft, be careful to avo id scarring front cover with timing chain.
4. Remove valve collet. • Compress valve spring with Tool (A). Remove valve collet witha magnet hand (B).
CAUTION:
Be careful not to damage valve lifter holes.
5. Remove valve spring retainer, valve spring and valve spring seat. Refer to EM-82, " Disassembly and
Assembly " .
6. Remove valve oil seal with Tool (A).
INSTALLATION
1. Apply new engine oil to valve oil seal joint surface and seal lip.
2. Press in valve oil seal to the height “H” shown with Tool (A).
3. Installation of the remaining components is in the reverse order of removal.
FRONT OIL SEAL Tool number : KV10116200 (J-26336-B)
: KV10115900 (J-26336-20)
: KV10109220 ( — )

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FRONT OIL SEAL : Remo
val and Installation INFOID:0000000004784303
REMOVAL 1. Remove the following parts: • Front fender protector (RH): Refer to EI-24, " Removal and Installation " .
• Drive belt: Refer to EM-15, " Removal and Installation " .
• Crankshaft pulley: Refer to EM-49, " Exploded View " .
2. Remove front oil seal using a suitable tool. CAUTION:
Be careful not to damage fron t timing chain case and crankshaft.
INSTALLATION 1. Apply new engine oil to both oil seal lip and dust seal lip of new front oil seal.
2. Install front oil seal. • Install front oil seal so that each seal lip is oriented as shown.
• Using a suitable drift, press-fit until the height of front oil seal (2) is level with the mounting surface.
- Suitable drift (A): outer diameter 50 mm (1.97 in), inner diame- ter 44 mm (1.73 in).
• Make sure the garter spring is in position and seal lips not
inverted
CAUTION:
• Be careful not to damage front timing chain case and
crankshaft.
• Press-fit straight and avoid cau sing burrs or tilting oil seal.
3. Install in the reverse order of removal, for the rest of parts.
REAR OIL SEAL
REAR OIL SEAL : Removal and Installation INFOID:0000000004784304
REMOVAL 1. Remove transaxle assembly. Refer to AT-232, " Removal and Installation " (A/T),
MT-16, " Removal and
Installation " (M/T).
2. Remove clutch cover and clutch disc (M/T). Refer to CL-15, " Removal and Installation " .
3. Remove flywheel (M/T) or drive plate (A/T). Refer to EM-95, " Exploded View " .
4. Remove rear oil seal with a suitable tool. CAUTION:
Be careful not to damage crankshaft and cylinder block.
INSTALLATION 1. Apply the liquid gasket lightly to entire outside area of new rear oil seal. A : Dust seal lip
B : Oil seal lip
: Engine outside
: Engine inside

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OIL SEAL
Use Genuine Silicone RTV Seal ant or equivalent. Refer to GI-42, " Recommended Chemical Prod-
uct and Sealant " .
2. Install rear oil seal so that each seal lip is oriented as shown.
• Press-fit rear oil seal with a drift (a) outer diameter 113 mm(4.45 in) and inner diameter 90 mm (3.54 in).
CAUTION:
• Be careful not to damage crankshaft and cylinder block.
• Press-fit oil seal straight to avoid causing burrs or tilt-
ing.
• Never touch grease applied onto oil seal lip.
• Press in rear oil seal (1) to the position as shown.
3. After press-fitting rear oil seal, completely wipe off any liquid gasket protruding to rear end surface side.
4. Installation of the remaining components is in the reverse order of removal. A : Dust seal lip
B : Oil seal lip
: Engine outside
: Engine inside PBIC3485J
PBIC3660E
A : Rear end surface of cylinder block
PBIC3761E

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CYLINDER HEAD
Removal and Installation INFOID:0000000004784305
REMOVAL WARNING:
• Put a “CAUTION: FLAMMABLE” sign in the workshop.
• Be sure to work in a well ventila ted 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 fuel pressure. Refer to EC-498, " Inspection " .
2. Drain engine coolant and engine oil. Refer to CO-11, " Changing Engine Coolant " and
LU-8, " Draining " .
CAUTION:
• Perform this step when the engine is cold.
• Never spill engine coolant an d engine oil on drive belt.
3. Remove the following components and related parts. • Front fender protector (RH): Refer to EI-24, " Removal and Installation " .
• Generator: Refer to SC-25, " Removal and Installation " .
• Exhaust front tube: Refer to EX-5, " Component " .
• Exhaust manifold: Refer to EM-31, " Exploded View " .
• Intake manifold: Refer to EM-28, " Exploded View " .
• Fuel tube and fuel injector: Refer to EM-34, " Exploded View " .
• Water outlet: Refer to CO-24, " Removal and Installation " .
• Drive belt: Refer to EM-15, " Removal and Installation " .
• Front cover: Refer to EM-49, " Exploded View " .
• Camshaft: Refer to EM-58, " Exploded View " .
1. Cylinder head assembly 2. Cylinder head bolt 3. Washer
4. Cylinder head gasket A. Refer to EM-79

Cylinder
Block " .
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 passag es 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. A : EXH side
B : INT side
: Engine front Cylinder Head " .

CYLINDER HEAD
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2. Tighten cylinder head bolts in numer
ical 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. Fol low the “Cylinder Head Bolts
Outer Diameter” measurement procedure.
a. Apply new engine oil to threads and seating surfaces of bolts.
b. Tighten all bolts in the specified order.
c. Turn all bolts 60 degrees clockwise (angle tightening) using Tool (A) in the specified order.
CAUTION:
Check and confirm the tightening angle by using Tool (A) or
protractor. Avoid judgment by visual inspection without the
tool.
d. Completely loosen all bolts in reverse order. CAUTION:
In this step, loosen bolts in reverse order of that indicated.
e. Tighten all bolts in the specified order.
f. Turn all bolts 75 degrees clockwise (angle tightening) using Tool (A) in the specified order.
CAUTION:
Check and confirm the tightening angle by using Tool (A) or
protractor. Avoid judgment by visual inspection without the
tool.
g. Turn all bolts 75 degrees clockwise again (angle tightening) using Tool (A) in the specified order.
CAUTION:
Check and confirm the tightening angle by using To ol (A) or protractor. Avoid judgment by visual
inspection without the tool.
3. Installation of the remaining components is in the reverse order of removal.
INSPECTION AFTER INSTALLATION
Inspection for Leaks • Before starting engine, check oil/fluid levels incl uding engine coolant and engine oil. If less than required
quantity, fill to the specified level. Refer to MA-14, " Fluids and Lubricants " .
A : EXH side
B : INT side
: Engine front
: 40.0 N·m (4.1 kg-m, 30 ft-lb)
Tool number : KV10112100 (BT-8653-A) PBIC3732E
PBIC3733E
: 0 N·m (0 kg-m, 0 ft-lb)
: 40.0 N·m (4.1 kg-m, 30 ft-lb)
Tool number : KV10112100 (BT-8653-A) PBIC3733E

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 Installation procedure B. Refer to Installation procedure

CYLINDER HEAD
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1. Remove spark plug using suitable tool.
2. Remove valve lifter. • Identify installation positions, and store them without mixing them up.
3. Remove valve collet. • Compress valve spring with Tool (A). Remove valve collet witha magnet tool (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.
6. Remove valve oil seal using Tool (A).
7. Remove valve spring seat.
8. Remove valve seat, if necessary. • Bore out old seat until it collapses. Boring s hould not continue beyond the bottom face of the seat
recess in cylinder head. Set the machine depth stop to ensure this.
CAUTION:
Never bore excessively to prevent cylinder head from scratching.
9. Remove valve guide, if necessary.
a. To remove valve guide, heat cylinder head to 110 to 130 °C (230
to 266 °F) by soaking in heated oil (A).
Tool number : KV10116200 (J-26336-B)
: KV10115900 (J-26336-20)
: KV10109220 ( — ) PBIC3727E
Tool number : KV10107902 (J-38959)
: KV10116100 ( — ) PBIC3728E
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