2009 NISSAN LATIO oil pressure

Removal and Installation " .
2. Remove knock sensor. CAUTION:
Carefully handle knock sensor avoiding shocks.
3. Remove crankshaft position sensor (POS) and cover. CAUTION:
• Avoid impacts such as a dropping.
• Never disassemble.
• Keep it away from metal particles.
• Never place the sensor where it is exposed to magnetism.
4. Remove piston and connecting rod assembly with the following procedure: • Before removing piston and connecting rod assembly, check the connecting rod side clearance. Refer to
EM-103, " Inspection " .
a. Position crankshaft pin corresponding to connecting rod to be removed onto the bottom dead center.
b. Remove connecting rod cap.
c. Using a hammer handle or similar tool, push piston and connect- ing rod assembly out to the cylinder head side.
CAUTION:
• Be careful not to damage matching surface with connect-
ing rod cap.
• Be careful not to damage the cylinder wall and crankshaft pin, resulting from an inte rference of the connecting rod
big end.
5. Remove connecting rod bearings. CAUTION:
Identify installation positions, and store them without mixing up.
6. Remove piston rings from piston. • Before removing piston rings, check the piston ring side clearance. Refer to EM-103, " Inspection " .
• Use suitable tool (A).
CAUTION:
• When removing piston rings, be careful not to damage the piston.
• Be careful not to damage piston rings by expanding
them excessively.
10. Oil pressure switch 11. Top ring 12. Second ring
13. Oil ring 14. Piston pin 15. Piston
16. Connecting rod 17. Connecting rod bearing (upper) 18. Main bearing (upper)
19. Thrust bearing 20. Crankshaft key 21. Connecting rod cap bolt
22. Connecting rod cap 23. Connecting rod bearing (lower) 24. Main bearing (lower)
25. Crankshaft 26. Pilot converter (A/T models) 27. Signal plate
28. Rear oil seal 29. Drive plate (A/T models) 30. Reinforcement plate (A/T models)
31. Flywheel (M/T models) 32. Main bearing cap 33. Main bearing cap bolt
A. Refer to Assembly procedure B. Refer to Assembly procedure PBIC3233J

PRECAUTIONS
EM-127
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5. When the repair work is completed, return the ignition switch to the
″LOCK ″ position before connecting
the battery cables. (At this time, the steering lock mechanism will engage.)
6. Perform a self-diagnosis check of al l control units using CONSULT-III.
Precaution for Procedur e without Cowl Top Cover INFOID:0000000004307110
When performing the procedure after removing cowl top cover, cover
the lower end of windshield.
Precaution for Drain Coolant INFOID:0000000004307112
• Drain coolant when engine is cooled.
Precaution for Disco nnecting Fuel Piping INFOID:0000000004307113
• Before starting work, make sure no fire or spark producing items are in the work area.
• Release fuel pressure before disassembly.
• After disconnecting pipes, plug openings to stop fuel leakage.
Precaution for Removal and Disassembly INFOID:0000000004307114
• When instructed to use special service tools, use the spec ified tools. Always be careful to work safely, avoid
forceful or uninstructed operations.
• Exercise maximum care to avoid damage to mating or sliding surfaces.
• Cover openings of engine system with tape or the equiva lent, if necessary, to seal out foreign materials.
• Mark and arrange disassembly parts in an organized way for easy troubleshooting and assembly.
• When loosening nuts and bolts, as a basic rule, start with the one furthest outside, then the one diagonally opposite, and so on. If the order of loosening is specif ied, do exactly as specified. Power tools may be used
where noted in the step.
Precaution for Inspection, Repair and Replacement INFOID:0000000004307115
• Before repairing or replacing, thoroughly inspect parts. Inspect new replacement parts in the same way, and
replace if necessary.
Precaution for Assembly and Installation INFOID:0000000004307116
• Use torque wrench to tighten bolts or nuts to specification.
• When tightening nuts and bolts, as a basic rule, equally tighten in several different steps starting with the ones in center, then ones on inside and outside diagonally in this order. If the order of tightening is specified,
do exactly as specified.
• Replace with new gasket, packing, oil seal or O-ring.
• Thoroughly wash, clean, and air-blow each part. Carefully check oil or coolant passages for any restriction
and blockage.
• Avoid damaging sliding or mating surfaces. Completely remove foreign materials such as cloth lint or dust. Before assembly, oil sliding surfaces well.
• Release air within route after draining coolant.
• Before starting engine, apply fuel pressure to fuel lines with turning ignition switch ON (with engine stopped). Then make sure that there are no leaks at fuel line connections.
• After repairing, start engine and increase engine speed to check coolant, fuel, oil, and exhaust systems for leakage. PIIB3706J

EM-154< SERVICE INFORMATION >
[MR18DE]
IGNITION COIL, SPARK PLUG AND ROCKER COVER
3. Remove spark plug using suitable tool. CAUTION:
Never drop or shock it.
4. Remove rocker cover. • Loosen bolts in reverse order as shown.
• Engine front
INSPECTION AFTER REMOVAL
CAUTION:
• Never drop or shock spark plug.
• Checking and adjusting spar k plug gap is not required
between change intervals.
• If spark plug tip is covered with car bon, a spark plug cleaner may be used.
• Never use wire brush for cleaning spark plug.
INSTALLATION
1. Install the rocker cover gasket to the rocker cover. PBIC3871E
PBIC3151J
SMA806CA
Cleaner air pressure
: Less than 588 kPa (5.88 bar, 6 kg/cm 2
, 85 psi)
Cleaning time : Less than 20 seconds SMA773C

CAMSHAFT
EM-177
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10. Install camshaft sprocket (EXH) (2).
NOTE:
Secure the hexagonal part (A) of camshaft (EXH) using wrench
to tighten bolt.
11. Install timing chain and related parts. Refer to EM-160 .
12. Inspect and adjust valve clearance. Refer to EM-178, " Valve Clearance " .
13. Installation of the remaining components is in the reverse order of removal.
INSPECTION AFTER INSTALLATION The following are procedures for chec king fluids leak, lubricates leak.
• 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 GI-42, " Recommended Chemical Product and Sealant " .
• 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. 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 leak age 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 detected in self-diagnostic results of CONSULT-III
and it is directed according to inspect ion procedure of EC section. Refer to EC-638, " Diagnosis Pro-
cedure " (Type 1) or
EC-1153, " Diagnosis Procedure " (Type 2).
• Check when engine is cold so as to pr event burns from the splashing engine oil.
1. Check engine oil level. Refer to LU-16, " Inspection " .
2. Perform the following procedure so as to prevent the engine from being unintentionally started while checking.
a. Remove intake manifold. Refer to EM-141, " Component " .
b. Disconnect ignition coil and in jector harness connectors.
3. Remove intake valve timing control solenoid valve. Refer to EM-160, " Component " .
1 : Camshaft sprocket (INT)
Camshaft sprocket
bolt (EXH) : 88.2 N·m (9.0 kg-m, 65 ft-lb) PBIC3454J
Item 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 —

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CYLINDER HEAD
On-Vehicle Service INFOID:0000000004307150
CHECKING COMPRESSION PRESSURE 1. Warm up engine thoroughly. Then, stop it.
2. Release fuel pressure. Refer to EC-574, " Fuel Pressure Check " (Type 1) or
EC-1086, " Fuel Pressure
Check " (Type 2).
3. Disconnect fuel pump fuse (1) to avoid fuel injection during mea- surement.
4. Remove engine cover. Refer to EM-141, " Component " .
5. Remove ignition coil and spark plug from each cylinder. Refer to EM-153 .
6. Connect an engine tachometer (not required in use of CONSULT-III).
7. Install a suitable compression tester (B) with an adapter (A) onto spark plug hole.
• Use the adapter whose picking up end inserted to spark plug hole is smaller than 20 mm (0.79 in) in diameter. Otherwise, it
may be caught by cylinder head during removal.
8. With accelerator pedal fully depressed, turn ignition switch to “START” for cranking. When the gauge pointer stabilizes, read the compression pressure and the engine rpm. Perform these steps to check each
cylinder.
Compression pressure: Unit: kPa (bar, kg/cm2
psi) /rpm
CAUTION: : Vehicle front
LBIA0459E
SBIA0533E

Trouble Diagnosis Introduction "
(Type 1) or
EC-1089, " Trouble Diagnosis Introduction " (Type 2).
Component INFOID:0000000004307151
Removal and Installation INFOID:0000000004307152
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-574, " Fuel Pressure Check " (Type 1) or
EC-1086, " Fuel Pressure
Check " (Type 2).
2. Drain engine coolant and engine oil. Refer to CO-35 and
LU-16 .
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 .
1. Cylinder head assembly 2. Cylinder head bolt 3. Cylinder head gasket
A. Refer to EM-186

CYLINDER HEAD
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• 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 When valve seat is removed, replace with 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 cylinder head. Set the machine depth stop to ensure this. Refer to EM-227, " Standard and Limit " .
2. Ream cylinder head (1) recess diameter for service valve seat.
• Be sure to ream in circles concentric to the valve guide center.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 (A).
4. Provide valve seats cooled well with dry ic e. Press-fit valve seat into cylinder head.
WARNING:
• Never touch cold valve seats directly.
• Cylinder head contains heat, wh en working, wear protective equipment to avoid getting burned.
5. Using valve seat cutter set or valve seat grinder, finish valve seat to the specified dimensions. For dimensions, refer to EM-227, " 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 staged valve seat.
6. Using compound, grind to adjust valve fitting.
7. Check again for normal contact. SBIA0322E
2 : Valve seat
Oversize [0.5 mm (0.020 in)] Intake : 35.200 - 35.227 mm (1.3858 - 1.3869 in)
Exhaust : 29.200 - 29.227 mm (1.1496 - 1.1507 in) PBIC3218J
PBIC3214J
SEM934C

Garage Jack and
Safety Stand and 2-Pole Lift " .
REMOVAL
Remove the engine and the transaxle assembly from t he vehicle downward. Separate the engine and the tran-
saxle.
1. Remove engine undercover.
2. Drain engine coolant from radiator. Refer to CO-35, " Changing Engine Coolant " .
CAUTION:
• Perform this step when the engine is cold.
• Do not spill engine coolant on drive belt.
3. Remove front fender protector (RH and LH). Refer to EI-24 .
4. Remove exhaust front tube. Refer to EX-9 .
5. Remove drive shafts (LH and RH) from steering knuckle. Refer to FAX-9 .
6. Remove transaxle joint bolts which pierce at oil pan (upper) lower rear side. Refer to AT-232 (A/T models),
CVT-182 or
CVT-354 (CVT models) or
MT-58 (M/T models).
7. Remove rear torque rod (1). NOTE:
A/T model shown CVT and M/T models similar.
8. Remove hood assembly. Refer to BL-13 .
9. Remove cowl top cover and cowl top extension assembly. Refer to EI-22 .
10. Release fuel pressure. Refer to EC-574, " Fuel Pressure Check " (Type 1) or
EC-1086, " Fuel Pressure
Check " (Type 2).
11. Remove battery and battery tray. Refer to SC-5 .
12. Remove drive belt; Refer to EM-136, " Component " .
13. Remove air duct and air cleaner case assembly. Refer to EM-139 .
14. Remove cooling fan assembly. Refer to CO-42, " Removal and Installation " .
15. Remove radiator hose (upper and lower). Refer to CO-38 .
16. Disconnect A/T, CVT fluid cooler hoses. Refer to CO-38 .
17. Disconnect all connections of engine harness around the engine mounting insulator (LH), and then tem- porarily secure the engine harness into the engine side.
CAUTION:
Protect connectors using a resin bag to protect against foreign materials during the operation.
18. Disconnect fuel feed hose at engine side. Refer to EM-156, " Component " .
19. Disconnect heater hoses, and install plugs them to prevent engine coolant from draining. Refer to CO-47," Component " .
20. Disconnect control cable from transaxle. Refer to CVT-182 or
CVT-341 (CVT models),
AT-212 (A/T mod-
els) or MT-55 (MT models).
21. Remove ground cable at transaxle side.
22. Remove ground cable between front cover and vehicle.
23. Remove generator. Refer to SC-21 .