2011 NISSAN LATIO engine

EM-188
< SERVICE INFORMATION >[MR18DE]
CYLINDER HEAD
Component
INFOID:0000000005931025
Removal and InstallationINFOID:0000000005931026
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-26
.
4. Remove drive belt. Refer to EM-132, "
Removal and Installation".
5. Remove the following components and related parts. • Exhaust manifold. Refer to EM-141
.
• Intake manifold. Refer to EM-137
.
• Fuel tube and fuel injector assembly. Refer to EM-154
.
• Water outlet. Refer to CO-50
.
• Rocker cover. Refer to EM-151
.
• Front cover, timing chain. Refer to EM-159
.
• Camshaft. Refer to EM-170
.
6. Remove cylinder head. • Loosen bolts in reverse order as shown.
• Using TORX socket (size E18), loosen cylinder head bolts.
7. Remove cylinder head gasket.
1. Cylinder head assembly 2. Cylinder head bolt 3. Cylinder head gasket
A. Refer to EM-188
PBIC3542J
: Engine front
PBIC3206J
Revision: May 2010 2011 Versa

CYLINDER HEADEM-189
< SERVICE INFORMATION > [MR18DE]
C
D
E
F
G H
I
J
K L
M A
EM
NP
O
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, replac e 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 checked. Refer to EM-219, "
Inspec-
tion After Disassembly".
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 di rections using straightedge (A)
and feeler gauge (B).
• If it exceeds the limit, replace cylinder head.
INSTALLATION
1. Install cylinder head gasket.
2. Apply new engine oil to threads and seating surface of bolts.
CAUTION:
If cylinder head bolts re-used, ch eck their outer diameters before installation. Follow the "Cylinder
Head Bolts Outer Diameter" procedure.
3. Install cylinder head, follow the steps below to tighten cylinder head bolts in numerical order as shown.Limit [(d1) – (d2)]: 0.15 mm (0.0059 in)
PBIC3994E
Limit: 0.1 mm (0.004 in)
PBIC3207J
Step a : 40 N·m (4.1 kg-m, 30 ft-lb)
Step b : 100
° clockwise
Step c : Loosen to 0 N·m in the reverse order of tight- ening.
Step d : 40 N·m (4.1 kg-m, 30 ft-lb)
Step e : 100 ° clockwise
Step f : 100 ° clockwise
PBIC3206J
Revision: May 2010 2011 Versa

EM-190
< SERVICE INFORMATION >[MR18DE]
CYLINDER HEAD
: Engine front
CAUTION:
Check and confirm the tightening angle by using Tool (A) or
protractor. Never judge by vi sual inspection without the
tool.
4. Installation of the remaining components is in the reverse order of removal.
ComponentINFOID:0000000005931027
Disassembly and AssemblyINFOID:0000000005931028
DISASSEMBLY
Tool number : KV10112100 (BT-8653-A)
PBIC3208J
1. Valve collet 2. Valve spring retainer3.Valve spring (EXH) (with valve spring
seat)
4. Valve oil seal 5. Valve guide (EXH)6. Valve seat (EXH)
7. Valve (EXH) 8. Valve (INT)9. Valve seat (INT)
10. Cylinder head 11. Valve guide (INT)12. Spark plug
13. Valve spring (INT ) (with valve spring
seat)
A. Refer to EM-192
B. Refer to EM-192
PBIC3543J
Revision: May 2010 2011 Versa

ENGINE ASSEMBLYEM-197
< SERVICE INFORMATION > [MR18DE]
C
D
E
F
G H
I
J
K L
M A
EM
NP
O
ENGINE ASSEMBLY
ComponentINFOID:0000000005931030
Removal and InstallationINFOID:0000000005931031
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 P
ARTS CATALOG if engine slingers are not equipped.
CAUTION:
• Always be careful to work safely, avoid forceful or uninstructed operations.
• Do not start working until exhaust system and coolant are cool enough.
• If items or work required are not covered by th e engine section, follow the applicable procedures.
• Always use the support poin t specified for lifting.
1. Engine mounting Insulator (RH) 2. Engine mounting shim (RH) (if equipped) 3. Engine mounting bracket (RH)
4. Bracket 5. Rear torque rod 6. Engine through bolt
7. Engine mounting bracket (LH) 8. Engine mounting insulator (LH) 9. Torque rod (RH)
A. Front mark B. Silicone lubricant
WBIA0846E
Revision: May 2010 2011 Versa

EM-198
< SERVICE INFORMATION >[MR18DE]
ENGINE ASSEMBLY
• 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 shift of center of gravity.
• For supporting points for lifting and jacking point at rear axle, refer to GI-38, "
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 under cover. Refer to EI-15, "
Removal and Installation".
2. Drain engine coolant from radiator. Refer to CO-36, "
Changing Engine Coolant".
CAUTION:
• Perform this step when the engine is cold.
• Do not spill engine coolant on drive belt.
3. Drain clutch fluid (M/T models). Refer to CL-9, "
Air Bleeding Procedure".
4. Remove front fender protector (RH and LH). Refer to EI-26
.
5. Remove exhaust front tube. Refer to EX-10
.
6. Remove drive shafts (LH and RH) from steering knuckle. Refer to FA X - 9
.
7. Remove transaxle joint bolts which pierce at oil pan (upper) lower rear side. Refer to AT-233
(A/T models),
CVT-180, "
Removal and Installation" (CVT models) or MT-61, "Removal and Installation" (M/T models).
8. Remove rear torque rod (1). NOTE:
A/T model shown CVT and M/T models similar.
9. Remove hood assembly. Refer to BL-13
.
10. Remove cowl top cover and cowl top extension assembly. Refer to EI-24
.
11. Release fuel pressure. Refer to EC-582, "
Fuel Pressure Check".
12. Remove battery and battery tray. Refer to SC-5
.
13. Remove drive belt; Refer to EM-132, "
Component".
14. Remove engine room cover.
15. Remove air duct and air cleaner case assembly. Refer to EM-135
.
16. Remove cooling fan assembly. Refer to CO-44, "
Removal and Installation".
17. Remove radiator hose (upper and lower). Refer to CO-40
.
18. Disconnect A/T fluid cooler hoses or CVT water hoses. Refer to CO-40, "
Component" (A/T) or CVT-175,
"WATER HOSE : Exploded View" (CVT).
NOTE:
Cap or plug opening(s) to prevent fluid from spilling.
19. 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.
20. Disconnect fuel feed hose at engine side. Refer to EM-154, "
Component".
NOTE:
Cap or plug opening(s) to revent fluid from spilling.
21. Disconnect heater hoses. Refer to CO-50, "
Component".
NOTE:
Cap or plug opening(s) to revent fluid from spilling.
LBIA0460E
Revision: May 2010 2011 Versa

ENGINE ASSEMBLYEM-199
< SERVICE INFORMATION > [MR18DE]
C
D
E
F
G H
I
J
K L
M A
EM
NP
O
22. Disconnect control cable from transaxle. Refer to
CVT-180, "Removal and Installation" (CVT models), AT-
213 (A/T models) or MT-61, "Removal and Installation" (M/T models).
23. Remove ground cable at transaxle side.
24. Remove ground cable between front cover and vehicle.
25. Remove generator. Refer to SC-21
.
26. 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. Refer to MTC-80, "
Removal and Installation of Compressor -
MR18DE".
27. Remove the intake manifold to prevent the hanging chain from interfering. Refer to EM-137, "
Compo-
nent".
28. Install engine slinger to cylinder head front left side (A) and rear right side (B) and support the engine position with a hoist.
29. Support engine and transaxle assembly with a hoist and secure the engine in appropriate position.
30. Use a manual lift table caddy (A) or equivalently rigid tool such as a transmission jack. Securely support bottom of the engine
and the transaxle, and simultaneously adjust hoist tension.
CAUTION:
Put a piece of wood or someth ing similar as the supporting
surface, secure a completely stable condition.
31. Remove torque rod (RH) (1), engine insulator (RH) (2) and engine bracket (RH) (3).
32. Remove engine through bolt-securing nut (C).
33. Remove the engine and the transaxle assembly from the vehicle downward by carefully operating sup- porting tools.
CAUTION:
• During the operation, 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 operation, alw ays 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.
• During operation, securely suppor t the engine by placing a piece of wood under the engine oil
pan and transaxle oil pan. Securely sup port the engine slingers with a hoist.
34. Remove starter motor. Refer to SC-9
.
: Engine front
Slinger bolts : 25.5 N·m (2.6 kg-m, 19 ft-lb)
LBIA0461E
PBIC3223J
4 : Engine insulator (LH)
A : Engine front side
B : Transaxle side
WBIA0784E
Revision: May 2010 2011 Versa

EM-200
< SERVICE INFORMATION >[MR18DE]
ENGINE ASSEMBLY
35. Separate the engine and the transaxle and mount the engine on a suitable engine stand. Refer to
AT-233
(A/T models), CVT-180, "Removal and Installation" (CVT models) or MT-61, "Removal and Installation"
(M/T models).
INSTALLATION
Installation is in the reverse order of removal.
Note the following during installation:
• When installation directions are specified, install parts according to the directions. Refer to EM-197, "
Com-
ponent".
• Do not allow engine oil to get on engine mounting insulator. Be careful not to damage engine mounting insu-
lator.
• Prior to installing the upper torque rod, apply a light coat of silicone lubricant (A) to the washer facing side of the bushing inner tube as
shown.
NOTE:
• Apply silicone lubricant (A) by dabbing the outward facing tubesurface with a sponge or suitable tool.
• Do not apply excess lubricant.
• 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.
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, 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:
: Vehicle front
LBIA0470E
: Vehicle front
WBIA0785E
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
Revision: May 2010 2011 Versa

ENGINE ASSEMBLYEM-201
< SERVICE INFORMATION > [MR18DE]
C
D
E
F
G H
I
J
K L
M A
EM
NP
O*Power steering fluid, brake fluid, etc.
Other oils and fluids*
LevelLeakage Level
Fuel LeakageLeakageLeakage
Exhaust gas —Leakage —
Revision: May 2010 2011 Versa