2011 NISSAN LATIO check engine

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]
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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

EM-208
< SERVICE INFORMATION >[MR18DE]
CYLINDER BLOCK
15. Tighten main bearing cap bolts in two steps in numerical order
as shown.
CAUTION:
Measure the angle in step 2 us ing Tool (A). Do not measure
visually.
• After installing bolts, make sure that crankshaft can be rotated smoothly by hand.
• Check crankshaft end play. Refer to EM-219, "
Inspection After Disassembly".
16. Using snap ring pliers, install new snap ri ng to the groove of the piston rear side.
• Insert it fully into groove to install.
17. Assemble piston to connecting rod. • Using a suitable tool, heat the piston until the pi ston pin can be pushed in by hand without excess force
[approximately 60 ° to 70 °C (140° to 158 °F)]. From the front to the rear, insert piston pin into piston and
connecting rod.
• Assemble so that the front mark (A) on the piston head and the oil hole (B) and the cylinder number (C) on connecting rod
are positioned as shown.
18. Install new snap ring to the groove of the piston front side. • Insert it fully into groove to install.
• After installing, make sure that connecting rod moves
smoothly.
19. Using a suitable tool, install piston rings. CAUTION:
• Be careful not to damage piston.
• Be careful not to damage piston rings by expanding them excessively.
: Engine front
PBIC3235J
Step 1 : 34.3 N·m (3.5 kg-m, 25 ft-lb)
Step 2 : 60° clockwise
Tool number : KV10112100 (BT-8653-A)
PBIC3240J
D : Big end diameter grade
E : Small end diameter grade
F : Front mark (connecting rod bearing cap)
PBIC3587J
Revision: May 2010 2011 Versa

CYLINDER BLOCKEM-209
< SERVICE INFORMATION > [MR18DE]
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• Position each ring with the gap as shown referring to the pis-
ton front mark.
CAUTION:
Never contact the rail end gap under the oil ring with the
oil drain cast groove of piston.
• Install second ring with the stamped surface facing upward.
20. Install connecting rod bearing upper (2) and lower (3) to con- necting rod (1) and connecting rod cap (4).
• Install the connecting rod in the dimension shown.
• Make sure that connecting rod bearing oil hole (A) is com-pletely in the inside of connecting rod oil hole chamfered area
(B).
• When installing connecting rod bearings, apply new engine oil to the bearing surface (inside). Do not apply new engine oil to
the back surface, but thoroughly clean it.
NOTE:
• There is no positioning tab.
• Install the connecting rod bearings in the center of connect-ing rod and connecting rod bearing cap as shown. For ser-
vice operation, the center position can be checked, visually.
21. Install piston and connecting rod assembly to crankshaft. • Position crankshaft pin corres ponding to connecting rod to be installed onto the bottom dead center.
• Apply new engine oil sufficiently to the cylinder bore, piston and crankshaft pin.
• Match the cylinder position with the cylinder number (C) on
connecting rod to install.
• Install so that front mark (A) on the piston head faces the front of engine.
A : Oil ring upper or lower rail gap
B : Front mark
C : Second ring and oil ring spacer gap
D : Top ring gap
E : Stamped mark
PBIC3588J
C : Oil hole (connecting rod)
D : Arrow view
: Engine front
PBIC4541E
B : Oil hole
D : Big end diameter grade
E : Small end diameter grade
F : Front mark (connecting rod bearing cap)
PBIC3587J
Revision: May 2010 2011 Versa

EM-210
< SERVICE INFORMATION >[MR18DE]
CYLINDER BLOCK
• Using Tool (A), install piston with the front mark on the piston
head facing the front of the engine.
CAUTION:
Be careful not to damage the cylinder wall and crankshaft
pin, resulting from an inte rference of the connecting rod
big end.
22. Install connecting rod cap. • Match the stamped cylinder number marks (C) on connectingrod with those on connecting rod cap to install.
23. Tighten connecting rod bolt with the following procedure: CAUTION:
• Make sure that there is no gap in the thrust surface (A) of
the joint between connecting rod (1) and connecting rod
bearing cap (2) and that th ese parts are in the correct
position. And then, tighten the connecting rod bolts.
• If the connecting rod bolts are reused, measure the outer
diameter. Refer to EM-219, "
Inspection After Disassem-
bly".
a. Apply new engine oil to the threads and seats of connecting rod bolts.
b. Tighten connecting rod bolts in two steps using Tool.
• After tightening connecting rod bolt, make sure that crankshaft rotates smoothly.
• Check the connecting rod side clearance. Refer to EM-219, "
Inspection After Disassembly".
24. Install oil pan (upper). Refer to EM-144
.
NOTE:
Install the rear oil seal after installing the oil pan (upper).
25. Install rear oil seal. Refer to EM-144
.
Tool number : EM03470000 (J-8037)
PBIC3244J
A : Front mark (piston)
B : Oil hole
D : Big end diameter grade
E : Small end diameter grade
F : Front mark (connecting rod bearing cap)
PBIC3587J
Step 1 : 19.6 N·m (2.0 kg-m, 14 ft-lb)
Step 2 : 60
° clockwise
Tool number : KV10112100 (BT-8653-A)
PBIC3510J
Revision: May 2010 2011 Versa

EM-212
< SERVICE INFORMATION >[MR18DE]
CYLINDER BLOCK
How to Select Piston and Bearing
INFOID:0000000005931034
DESCRIPTION
• The identification grade stamped on each part is the grade for the dimension measured in new condition.
This grade cannot apply to reused parts.
• For reused or repaired parts, measure the dimension accurately. Determine the grade by comparing the measurement with the values of each selection table.
• For details of the measurement method of each part, the reuse standar ds and the selection method of the
selective fitting parts, follow the applicable procedures.
HOW TO SELECT PISTON
When New Cylinder Block is Used
• Check the cylinder bore grade on rear left side of cylinder block (L), and select piston of the same grade.
• If there is a correction stamp mark on the cylinder block, use it as a
correct reference.
When Cylinder Block is Reused
1. Measure the cylinder bore inner diameter. Refer to EM-219, "Inspection After Disassembly".
2. Determine the bore grade by comparing the measur ement with the values under the cylinder bore inner
diameter of the “Piston Selection Table”.
Selection points Selection parts Selection itemsSelection methods
Between cylinder block and
crankshaft Main bearing
Main bearing grade (bearing
thickness) Determined by match of cylin-
der block bearing housing
grade (inner diameter of hous-
ing) and crankshaft journal
grade (outer diameter of jour-
nal)
Between crankshaft and con-
necting rod Connecting rod bearing
Connecting rod bearing grade
(bearing thickness) Combining service grades for
connecting rod big end diame-
ter and crankshaft pin outer di-
ameter determine connecting
rod bearing selection.
Between cylinder block and pis-
ton Piston and piston pin assembly
(piston is available together with
piston pin as an assembly.)Piston grade (piston outer diam-
eter)
Piston grade = cylinder bore
grade (inner diameter of bore)
A : Correction stamp
B : Standard stamp
C : Cylinder No. 1 bore grade
D : Cylinder No. 2 bore grade
E : Cylinder No. 3 bore grade
F : Cylinder No. 4 bore grade
G : No. 1 main bearing housing grade
H : No. 2 main bearing housing grade
I : No. 3 main bearing housing grade
J : No. 4 main bearing housing grade
K : No. 5 main bearing housing grade
: Engine front
PBIC3264J
Revision: May 2010 2011 Versa

EM-230
< SERVICE INFORMATION >[MR18DE]
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
Standard and LimitINFOID:0000000005931036
GENERAL SPECIFICATIONS
DRIVE BELT
WATER CONTROL VALVE
EXHAUST MANIFOLD
Unit: mm (in)
THERMOSTAT
SPARK PLUG
Unit: mm (in)
*: Always check with the Parts Department for the latest parts information
CYLINDER HEAD
Engine type
MR18DE
Cylinder arrangement In-line 4
Displacement cm
3 (cu in)1,797 (109.65)
Bore and stroke mm (in) 84.0 x 81.1 (3.307 x 3.192)
Valve arrangement DOHC
Firing order 1-3-4-2
Number of piston rings Compression
2
Oil 1
Compression ratio 9.9
Compression pressure
kPa (bar, kg/cm
2, psi) / 250 rpm Standard
1,500 (15.0, 15.3, 217.6)
Minimum 1,200 (12.0, 12.2, 174)
Differential limit between cylinders 100 (1.0, 1.0, 15)
Tension of drive belt Auto adjustment by auto-tensioner
Valve opening temperature 93.5 - 96.5°C (200 - 206 °F)
Full-open valve lift amount 8 mm/ 108°C (0.315 in/ 226 °F)
Valve closing temperature More than 90°C (194 °F)
Items Limit
Surface distortion Each exhaust port
0.3 (0.012)
Entire part 0.7 (0.028)
Valve opening temperature 80.5 - 83.5°C (177 - 182 °F)
Full-open valve lift amount 8 mm/ 95°C (0.315 in/ 203° F)
Valve closing temperature More than 77°C (171 °F)
Make DENSO
Standard type* FXE20HR11
Spark plug gap Nominal: 1.1 (0.043)
Revision: May 2010 2011 Versa