NISSAN LATIO 2010 Service Repair Manual

EM-192
< 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. Drain M/T oil (M/T models). Refer to MT-54, "
Changing M/T Oil".
5. Remove front fender protector (RH and LH). Refer to EI-24
.
6. Remove exhaust front tube. Refer to EX-11
.
7. Remove drive shafts (LH and RH) from steering knuckle. Refer to FA X - 9
.
8. Remove transaxle joint bolts which pierce at oil pan (upper) lower rear side. Refer to AT-233
(A/T models),
CVT-173, "
Removal and Installation" (CVT models) or MT-61, "Removal and Installation" (M/T models).
9. Remove rear torque rod (1). NOTE:
A/T model shown CVT and M/T models similar.
10. Remove hood assembly. Refer to BL-13
.
11. Remove cowl top cover and cowl top extension assembly. Refer to EI-22
.
12. Release fuel pressure. Refer to EC-582, "
Fuel Pressure Check".
13. Remove battery and battery tray. Refer to SC-5
.
14. Remove drive belt; Refer to EM-132, "
Component".
15. Remove engine room cover.
16. Remove air duct and air cleaner case assembly. Refer to EM-135
.
17. Remove cooling fan assembly. Refer to CO-43, "
Removal and Installation".
18. Remove radiator hose (upper and lower). Refer to CO-40
.
19. Disconnect A/T, CVT fluid cooler hoses (A/T or CVT models). Refer to CO-40
.
20. 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.
21. Disconnect fuel feed hose at engine side. Refer to EM-152, "
Component".
22. Disconnect heater hoses, and install plugs in them to prevent engine coolant from draining. Refer to CO-
48, "Component".
23. Disconnect control cable from transaxle. Refer to CVT-173, "
Removal and Installation" (CVT models), AT-
213 (A/T models) or MT-61, "Removal and Installation" (M/T models).
24. Remove ground cable at transaxle side.
25. Remove ground cable between front cover and vehicle.
26. Remove generator. Refer to SC-21
.
LBIA0460E
Revision: January 20102010 Versa

ENGINE ASSEMBLYEM-193
< SERVICE INFORMATION > [MR18DE]
C
D
E
F
G H
I
J
K L
M A
EM
NP
O
27. 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-81, "
Removal and Installation of Compressor -
MR18DE".
28. Remove the intake manifold to prevent the hanging chain from interfering. Refer to EM-137, "
Compo-
nent".
29. Install engine slinger to cylinder head front left side (A) and rear right side (B) and support the engine position with a hoist.
30. Support engine and transaxle assembly with a hoist and secure the engine in appropriate position.
31. 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.
32. Remove torque rod (RH) (1), engine insulator (RH) (2) and engine bracket (RH) (3).
33. Remove engine through bolt-securing nut (C).
34. 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.
35. Remove starter motor. Refer to SC-9
.
36. Separate the engine and the transaxle and mount the engine on a suitable engine stand. Refer to AT-233
(A/T models), CVT-173, "Removal and Installation" (CVT models) or MT-61, "Removal and Installation"
(M/T models).
INSTALLATION
Note the following, and install in the reverse order of removal.
: 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: January 20102010 Versa

EM-194
< SERVICE INFORMATION >[MR18DE]
ENGINE ASSEMBLY
• Do not allow engine oil to get on engine mounting insulator. Be careful not to damage engine mounting insu-
lator.
• When installation directions are specified, install parts according to the directions. Refer to EM-191, "
Com-
ponent".
• 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 tube
surface 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
Inspection for Leaks
The following are procedures for checking fluids leak, lubricates leak and exhaust gases 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 MA-14
.
• 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 gases, or any oil/fluids includ- ing 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. : Vehicle front
LBIA0470E
: Vehicle front
WBIA0785E
Item
Before starting engine Engine runningAfter engine stopped
Engine coolant LevelLeakage Level
Engine oil LevelLeakage Level
Other oils and fluid* LevelLeakage Level
Fuel LeakageLeakageLeakage
Exhaust gases —Leakage —
Revision: January 20102010 Versa

CYLINDER BLOCKEM-195
< SERVICE INFORMATION > [MR18DE]
C
D
E
F
G H
I
J
K L
M A
EM
NP
O
CYLINDER BLOCK
ComponentINFOID:0000000005398145
1. Cylinder block
2. O-ring 3. Crankshaft position sensor (POS)
4. Crankshaft position sensor (POS)
cover
5.Oil filter (for intake valve timing con-
trol)
6. Knock sensor
AWBIA0749GB
Revision: January 20102010 Versa

EM-196
< SERVICE INFORMATION >[MR18DE]
CYLINDER BLOCK
Disassembly and Assembly
INFOID:0000000005398146
DISASSEMBLY
1. Remove engine and transaxle assembly from vehicle, separate transaxle from engine. Refer to EM-191.
2. Install engine to engine stand as follows;
a. Remove flywheel (M/T models) or drive plate (1) (A/T or CVT models).
• Secure flywheel (M/T models) or drive plate (A/T or CVT mod-els) using Tool (A), and remove bolts.
CAUTION:
Be careful not to damage or scratch drive plate (A/T or CVT
models) and contact surface for clutch disc of flywheel (M/T
models).
NOTE:
Figure shows drive plate (1) (A/T or CVT models)
b. Lift the engine with a hoist to install it onto widely use engine stand. CAUTION:
• Use the engine stand that has a load capacity [approximately 135 kg (298 lb) or more] large
enough for supporting the engine weight.
• If the load capacity of stand is not adequate, remo ve the following parts beforehand to reduce the poten-
tial risk of overturning stand.
- Exhaust manifold; Refer to EM-140
.
- Rocker cover; Refer to EM-149
.
NOTE:
The figure shows an example of widely used engine stand (A)
that can support mating surface of transaxle with flywheel (M/T
models) or drive plate (A/T or CVT models) removed.
CAUTION:
Before removing the hanging chains, make sure the engine
stand is stable and there is no risk of overturning.
3. Remove oil pan (upper and lower). Refer to EM-143
.
4. Remove cylinder head. Refer to EM-181
.
5. Remove thermostat housing. Refer to CO-46
.
6. Remove knock sensor. CAUTION:
Carefully handle knock sensor avoiding shocks.
7. Remove crankshaft position sensor (POS) cover and crankshaft position sensor (POS).
7. Oil pressure switch8. Top ring 9. Second ring
10. Oil ring 11. Snap ring 12. Piston
13. Piston pin 14. Connecting rod 15. Thrust bearing
16. Connecting rod bearing upper 17. Main bearing upper 18. Crankshaft key
19. Main bearing lower 20. Connecting rod bearing lower 21. Connecting rod bearing cap
22. Connecting rod bolt 23. Main bearing cap 24. Main bearing cap bolt
25. Crankshaft 26. Pilot converter (A/T or CVT models) 27. Signal plate
28. Rear oil seal 29. Drive plate (A/T or CVT models) 30. Reinforcement plate (A/T or CVT
models)
31. Flywheel (M/T models) 32. Block heater (Canada only) A. Refer to EM-196
Tool number : KV 11105210 (J-44716)
PBIC3226J
PBIC3227J
Revision: January 20102010 Versa

CYLINDER BLOCKEM-197
< SERVICE INFORMATION > [MR18DE]
C
D
E
F
G H
I
J
K L
M A
EM
NP
O
CAUTION:
• Avoid impacts such as a dropping.
• Never disassemble.
• Keep it away from metal particles.
• Never place sensor in a location wher
e it is exposed to magnetism.
8. Remove oil filter (for intake valve timing control).
9. Remove pilot converter (1) using Tool (A). (A/T or CVT models)
NOTE:
M/T models have no pilot converter.
10. Position crankshaft pin corresponding to connecting rod to be removed onto the bottom dead center. NOTE:
Before removing piston and connecting rod assembly, check the connecting rod side clearance. Refer to
EM-212, "
Inspection After Disassembly".
11. Remove connecting rod cap.
12. Using a suitable tool, push piston and connecting 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.
13. Remove connecting rod bearings. CAUTION:
When removing them, note the installation position. Keep them in the correct order.
14. Remove piston rings from piston. • Before removing piston rings, check the piston ring side clearance. Refer to EM-212, "
Inspection After
Disassembly".
15. Using a suitable tool (A) remove piston rings. CAUTION:
• When removing piston rings, be careful not to damage thepiston.
• Be careful not to damage piston rings by expanding them excessively.Tool number :ST16610001 (J-23907)
PBIC3229J
PBIC0259E
PBIC3233J
Revision: January 20102010 Versa

EM-198
< SERVICE INFORMATION >[MR18DE]
CYLINDER BLOCK
16. Using snap ring pliers (A), remove snap rings.
17. Heat piston to 60
° to 70° C (140 ° to 158° F) using a suitable tool
(A).
18. Push out piston pin using a suitable tool of an outer diameter approximately 18 mm (0.71 in).
19. Loosen main bearing cap bolts in reverse order as shown, and remove them.
NOTE:
Before loosening main bearing cap bolts, measure crankshaft
end play. Refer to EM-212, "
Inspection After Disassembly".
20. Remove main bearing caps. • Tap main bearing caps lightly using a suitable tool for removal. CAUTION:
Be careful not to damage the mounting surface.
21. Remove crankshaft. CAUTION:
PBIC3230J
PBIC3231J
PBIC0262E
: Engine front
PBIC3235J
Revision: January 20102010 Versa

CYLINDER BLOCKEM-199
< SERVICE INFORMATION > [MR18DE]
C
D
E
F
G H
I
J
K L
M A
EM
NP
O
• Be careful not to damage or deform signal plate (1)
mounted on rear end of crankshaft (A).
• When setting crankshaft on a flat floor surface, use a
block of wood to avoid interference between signal plate
and the floor surface.
• Never remove signal plate unl ess it is necessary to do so.
22. Pull rear oil seal out from rear end of crankshaft.
23. Remove main bearings and thrust bearings from cylinder block and main bearing caps.
CAUTION:
Identify installation positions, and store them without mix-
ing them up.
ASSEMBLY
1. Fully air-blow engine coolant and engine oil passages in cylinder block, cylinder bore and crankcase to remove any foreign material.
WARNING:
Use goggles to protect your eyes.
2. Install water drain plug (1) to cylinder block.
• Apply liquid gasket to the drain plug thread.
Use Genuine Silicone RTV Seal ant or equivalent. Refer to
GI-42, "
Recommended Chemical Product and Sealant".
3. Remove dust, dirt, and engine oil on the bearing mating sur- faces of cylinder block and main bearing cap.
4. Install thrust bearings to both sides of the No. 3 journal housing (B) on cylinder block.
• Install thrust bearings with the oil groove (A) facing crankshaftarm (outside).
5. Install the main bearings paying attention to the direction. CAUTION:
• Before installing main bearings, apply new engine oil to the bearing surface (inside). Do not
apply new engine oil to the back surface, but thoroughly clean it.
• When installing, align main b earing to the center position of cylinder block and main bearing
cap.
PBIC3234J
: Engine front
9.8 N·m (1.0 kg-m, 87 in-lb)
PBIC3228J
: Engine front
PBIC3258J
Revision: January 20102010 Versa

EM-200
< SERVICE INFORMATION >[MR18DE]
CYLINDER BLOCK
• The difference (A) between main bearing upper (1) and
main bearing lower (3) shou ld be 0.85 mm (0.033 in) or
less when installing.
• Ensure the oil holes on cyli nder block and oil holes (A) on
the main bearings (1) are aligned.
6. Install signal plate to crankshaft if removed.
7. Set the signal plate with the flange facing toward the counter weight side (engine front side) to the crank-
shaft rear surface.
8. Apply new engine oil to threads and seat surfaces of bolts.
9. Position crankshaft (2) and signal plate (1) using a dowel pin (service part), and tighten bolts in numerical order as shown.
NOTE:
Dowel pin of crankshaft and signal plate is provided as a set for
each.
10. Tighten bolts in numerical order as shown.
11. Remove dowel pin. (service parts) CAUTION:
Be sure to remove dowel pin.
12. Install crankshaft to cylinder block. • While turning crankshaft by hand, make sure that it turns smoothly.
13. Install main bearing caps referring to the journal No. stamp (A) and front mark (B) as shown.
NOTE:
Main bearing cap cannot be replaced as a single part, because it
is machined together with cylinder block.
14. Apply new engine oil to threads and seat surfaces of bolts.
2 : Cylinder block
4 : Main bearing cap
PBIC3237J
PBIC3236J
A : Dowel pin hole
PBIC3238J
: Engine front
PBIC3239J
Revision: January 20102010 Versa

CYLINDER BLOCKEM-201
< SERVICE INFORMATION > [MR18DE]
C
D
E
F
G H
I
J
K L
M A
EM
NP
O
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-212, "
Inspection After Disassembly".
16. Using snap ring pliers, install new snap ring 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: January 20102010 Versa