2011 NISSAN LATIO engine

EM-74
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CYLINDER HEAD
4. Remove cylinder head loosening bolts in reverse order as
shown.
5. Remove cylinder head gasket.
INSPECTION AFTER REMOVAL
Cylinder Head Bolt s 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 appear s 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 EM-116, "
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
PBIC3732E
Limit [(d1) –— d2)]: 0.15 mm (0.0059 in)
PBIC3717E
A : Straight edge
B : Feeler gauge
Limit : Refer to EM-114, "Cylinder Head".
PBIC3207J
Revision: May 2010 2011 Versa

CYLINDER HEADEM-75
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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
• 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".
• Use procedure below to check for fuel leakage.
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
Revision: May 2010 2011 Versa

EM-76
< ON-VEHICLE REPAIR >[HR16DE]
CYLINDER HEAD
• 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.
• Warm up engine thoroughly to make sure there is no leakage of fuel, exhaust gas, or any oils/fluids including engine oil and engine coolant.
• Bleed air from passages in lines and hoses, such as in cooling system.
• After cooling down engine, again check oil/fluid levels including engine oil and engine coolant. Refill to spec- ified level, if necessary.
• Summary of the inspection items:
*Power steering fluid, brake fluid, etc.
Disassembly and AssemblyINFOID:0000000005930961
Item Before starting engine Engine runningAfter engine stopped
Engine coolant LevelLeakage Level
Engine oil LevelLeakage Level
Transmission/
transaxle fluid A/T and CVT Models
LeakageLevel/Leakage Leakage
M/T Models Level/Leakage LeakageLevel/Leakage
Other oils and fluids* LevelLeakage Level
Fuel LeakageLeakage Leakage
Exhaust gas —Leakage —
1. Spark plug 2. Valve collet3. Valve spring retainer
4. Valve spring 5. Valve spring seat6. 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)
PBIC3734E
Revision: May 2010 2011 Versa

EM-82
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ENGINE ASSEMBLY
REMOVAL AND INSTALLATION
ENGINE ASSEMBLY
Exploded ViewINFOID:0000000005930962
Removal and InstallationINFOID:0000000005930963
WARNING:
• Situate the vehicle on a flat and solid surface.
• Place chocks at front and back of rear wheels.
• Attach proper slingers and bolts
described in PARTS CATALOG if engine slingers are not equipped.
• Always be careful to work safely, avoid forceful or uninstructed operations.
• Never start working until exhaust system and coolant are cool enough.
CAUTION:
1. Engine mounting insulator (LH) 2. Engine mounting bracket (LH) 3. Mass damper
4. Dynamic damper 5. Engine mounting insulator (RH) 6. Engine mounting stay
7. Engine mounting bracket (RH) 8. Rear engine mounting bracket 9. Rear torque rod
10. Washer 11. Engine mounting bracket (LH)
A. Front mark B. M/T models
PBIC3736E
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• If items or work required are not covered by the engine section, follow the procedures in the applica-
ble sections.
• Always use the support poin t specified for lifting.
• Use either 2-pole lift type or separate type lift as best you can. If board-on type is used for unavoid-
able reasons, support at the rear axle jacking point with a transmission jack or similar tool before
starting work, in preparation for the backward shif t of center of gravity.
• For supporting points fo r lifting and jacking point at rear axle, refer to GI-38, "
Garage Jack and
Safety Stand and 2-Pole Lift".
REMOVAL
Outline
Remove the engine and the transaxle assembly from t he vehicle downward. Separate the engine and the tran-
saxle.
Preparation
1. Remove the hood assembly. Refer to BL-14, "Removal and Installation".
2. Remove the cowl top cover and cowl top extension assembly. Refer to EI-24, "
Removal and Installation".
3. Release fuel pressure. Refer to EC-499, "
Inspection".
4. Drain engine coolant from radiator. Refer to CO-11, "
Changing Engine Coolant".
CAUTION:
• Perform this step when the engine is cold.
• Never spill engine coolant on drive belt.
5. Remove the following parts. • Engine under cover. Refer to EI-15, "
Removal and Installation".
• Front road wheels and tires. Refer to WT-7, "
Adjustment".
• Front fender protector (RH and LH). Refer to EI-26, "
Removal and Installation".
• Battery and battery tray. Refer to SC-7, "
Removal and Installation".
• Drive belt. Refer to EM-14, "
Removal and Installation".
• Air duct and air cleaner case assembly. Refer to EM-25, "
Exploded View".
• Radiator hose (upper and lower). Refer to CO-16, "
Component".
• Disconnect cooling fan controller wiring harness.
• Remove coolant reservoir tank.
• Remove fan shroud and cooling fan assembly. Refer to CO-18, "
Component (Models with A/C)" or CO-
18, "Component (Models without A/C)".
Engine Room LH
1. 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 against foreign materials.
2. Remove ground cable at transaxle side.
3. Disconnect fuel feed hose at engine side. Refer to EM-33, "
Exploded View".
4. Disconnect EVAP purge hose and brake booster vacuum hose.
5. Disconnect heater hoses, and install plugs them to prevent engine coolant from draining. Refer to CO-16,
"Component".
6. Disconnect control linkage from transaxle. Refer to AT-213, "
A/T Shift Selector Removal and Installation"
(A/T), MT-14, "Exploded View" (M/T).
7. Disconnect the clutch tube at tr ansmission side (if equipped). Refer to CL-15, "
Removal and Installation".
Engine Room RH
1. Remove ground cable between front cover and vehicle.
2. Remove generator and generator br acket (A/C models). Refer to SC-25, "
Removal and Installation".
3. Remove A/C compressor with piping connected from t he engine. Temporarily secure it on the vehicle side
with a rope to avoid putting load on it (if equipped). Refer to MTC-78, "
Removal and Installation of Com-
pressor - HR16DE".
Vehicle Underbody
1. Remove front wheel sensor (LH and RH) for ABS from steering knuckle (if equipped). Refer to BRC-33,
"Removal and Installation" (ABS) or BRC-86, "Removal and Installation" (VDC/TCS/ABS).
Revision: May 2010 2011 Versa

EM-84
< REMOVAL AND INSTALLATION >[HR16DE]
ENGINE ASSEMBLY
2. Remove brake caliper assembly with piping connected fr
om steering knuckle. Temporarily secure it on the
vehicle side with a rope to avoid load on it. Refer to BR-25, "
Component".
3. Remove drive shafts (LH and RH) from steering knuckle. Refer to FA X - 9 , "
Removal and Installation (Left
Side)" and FAX-10, "Removal and Installation (Right Side)".
4. Remove exhaust front tube. Refer to EX-5, "
Component".
5. Remove rear torque rod (1). NOTE:
A/T models shown, M/T models similar.
6. Remove A/T cooler hoses from transmission (if equipped). NOTE:
Cap or plug opening(s) to prevent fluid from spilling.
7. Preparation for the separation work of transaxle is as follows: • Remove transaxle joint bolts which pierce at oil pan (upper) lower rear side. Refer to EM-42, "
Compo-
nent".
Removal
1. Install engine slinger to cylinder head front left side (A) and rear
right side (B) and support the engine with a hoist.
2. Lift with a hoist and secure the engine in appropriate position.
3. Use a suitable tool (A) to securely support bottom of the engine and the transaxle assembly and simultaneously adjust hoist ten-
sion.
CAUTION:
Put a piece of wood or something similar as the supporting
surface, secure a completely stable condition.
PBIC3737E
PBIC3738E
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4. Remove engine mounting insulator (RH) (1), engine mounting
bracket (RH) (2) and engine mounting stay (3).
5. Remove engine mounting insulator (LH) (4) through bolt secur- ing nut (A).
6. Carefully lower jack, or raise lift to remove the engine and the transaxle assembly. CAUTION:
• Make sure that no part interferes with the vehicle side.
• Before and during this lifting, alw ays check if any harnesses are left connected.
• During the removal, always be careful to prevent the vehicle from falling off the lift due to
changes in the center of gravity.
• If necessary, support the vehicle by setting jack or suitable tool at the rear.
Separation
1. Remove starter motor. Refer to SC-19, "Removal and Installation HR16DE".
2. Lift with a hoist and separate the engine from the transaxle assembly. Refer to EM-82, "
Exploded View".
INSTALLATION
Installation is in the reverse order of removal.
• Do not allow engine oil to get on engine mounting insulator. Be careful not to damage engine mounting insu-
lator.
• Make sure that each mounting insulator is seated properly, and tighten nuts and bolts.
• Tighten engine mounting insulator (RH) bolts in the numerical
order shown.
InspectionINFOID:0000000005930964
INSPECTION AFTER INSTALLATION
• 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".
• 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 leak age of fuel, exhaust gas, or any oils/fluids including
engine oil and engine coolant.
• Bleed air from passages in lines and hoses, such as in cooling system.
• After cooling down engine, again check oil/fluid levels including engine oil and engine coolant. Refill to spec- ified level, if necessary.
• Summary of the inspection items:
JPBIA0512ZZ
: Vehicle front
JPBIA0280ZZ
Item Before starting engine Engine runningAfter engine stopped
Engine coolant LevelLeakage Level
Revision: May 2010 2011 Versa

EM-86
< REMOVAL AND INSTALLATION >[HR16DE]
ENGINE ASSEMBLY
*Power steering fluid, brake fluid, etc.
Engine oil
LevelLeakage Level
Transmission/
transaxle fluid A/T and CVT Models
LeakageLevel/Leakage Leakage
M/T Models Level/Leakage LeakageLevel/Leakage
Other oils and fluids* LevelLeakage Level
Fuel LeakageLeakage Leakage
Exhaust gas —Leakage —
Revision: May 2010 2011 Versa