2007 NISSAN LATIO engine

CYLINDER BLOCK
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Revision: June 20062007 Versa

Measure the position shown [5 mm (0.20 in)] backward from
main bearing housing front side in the 2 directions as shown.
The smaller one is the measured value.

If out of the standard, replace cylinder block and main bearing
caps assembly.
NOTE:
Main bearing caps cannot be replaced as a single, because it is machined together with cylinder block.
PISTON TO CYLINDER BORE CLEARANCE
Cylinder Bore Inner Diameter

Using a bore gauge (A), measure the cylinder bore for wear, out-
of-round and taper at six different points on each cylinder. (“X”
and “Y” directions at “A”, “B” and “C”) (“Y” is in longitudinal direc-
tion of engine)
NOTE:
When determining cylinder bore grade, measure the cylinder
bore “X” direction at “B” position.

If the measured value exceeds the limit, or if there are scratches
and/or seizure on the cylinder inner wall, replace cylinder block.
NOTE:
Oversize piston is not provided.
Piston Skirt Diameter
Measure the outer diameter of piston skirt with a micrometer (A).
Piston to Cylinder Bore Clearance
Calculate by piston skirt diameter and cylinder bore inner diameter (direction “X”, position “B”).
(Clearance) = (Cylinder bore inner diameter) – (Piston skirt diameter)
1 : Cylinder block
2 : Main bearing cap
: Engine front
Standard: 55.997 - 56.017 mm (2.2046 - 2.2054 in)
PBIC4005E
Standard inner diameter:
84.000 - 84.020 mm (3.3071 - 3.3079 in)
Out-of-round (Difference between “X” and “Y”):
0.015 mm (0.0006 in)
Taper limit (Difference between “A” and “C”):
0.01 mm (0.0004 in)
PBIC4014E
Measure point
: Distance from the top 39.9 mm (1.571 in)
Standard
: 83.970 - 83.990 mm (3.3059 - 3.3067 in)
PBIC3272J
Standard : 0.020 - 0.040 mm (0.0008 - 0.0016 in)
Limit : 0.08 mm (0.0031 in)

CYLINDER BLOCK
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CONNECTING ROD BEARING OIL CLEARANCE
Method by Calculation

Install connecting rod bearings (2) to connecting rod (3) and
connecting rod bearing cap (1), and tighten connecting rod bolts
to the specified torque. Refer to EM-81, "
ASSEMBLY" for tight-
ening procedure.

Measure the inner diameter of connecting rod bearing with an
inside micrometer.
(Bearing oil clearance) = (Connecting rod bearing inner diame-
ter) – (Crankshaft pin journal diameter)

If clearance exceeds the limit, select proper connecting rod bearing according to connecting rod big end
diameter and crankshaft pin journal diameter to obtain specified bearing oil clearance. Refer to EM-88,
"HOW TO SELECT CONNECTING ROD BEARING" .
Method of Using Plastigage

Remove engine oil and dust on crankshaft pin and the surfaces of each bearing completely.

Cut a plastigage slightly shorter than the bearing width, and place it in crankshaft axial direction, avoiding
oil holes.

Install connecting rod bearings to connecting rod and cap, and tighten connecting rod bolts to the speci-
fied torque. Refer to EM-81, "
ASSEMBLY" for the tightening procedure.
CAUTION:
Never rotate crankshaft.

Remove connecting rod cap and bearing, and using the scale
(A) on the plastigage bag, measure the plastigage width.
NOTE:
The procedure when the measured value exceeds the limit is
same as that described in the “Method by Calculation”.
MAIN BEARING OIL CLEARANCE
Method by Calculation

Install main bearings (3) to cylinder block (1) and main bearing
cap (2), and tighten main bearing cap bolts to the specified
torque. Refer to EM-81, "
ASSEMBLY" for the tightening proce-
dure.

Measure the inner diameter of main bearing with a bore gauge.
(Bearing oil clearance) = (Main bearing inner diameter) – (Crank-
shaft main journal diameter)
A : Example
B : Inner diameter measuring direction
Standard : 0.037 - 0.047 mm (0.0015 - 0.0019 in)
Limit : 0.07 mm (0.0028 in)
PBIC3275J
PBIC3276J
A : Example
B : Inner diameter measuring direction
Standard:
No. 1, 4 and 5 journals
: 0.024 - 0.034 mm (0.0009 - 0.0013 in)
No. 2 and 3 journalsPBIC3277J

EM-102Revision: June 2006
CYLINDER BLOCK
2007 Versa

If clearance exceeds the limit, select proper main bearing according to main bearing inner diameter and
crankshaft main journal diameter to obtain specified bearing oil clearance. Refer to EM-91, "
HOW TO
SELECT MAIN BEARING" .
Method of Using Plastigage

Remove engine oil and dust on crankshaft main journal and the surfaces of each bearing completely.

Cut a plastigage slightly shorter than the bearing width, and place it in crankshaft axial direction, avoiding
oil holes.

Install main bearings to cylinder block and main bearing cap, and tighten main bearing cap bolts to the
specified torque. Refer to EM-81, "
ASSEMBLY" for the tightening procedure.
CAUTION:
Never rotate crankshaft.

Remove main bearing cap and bearings, and using the scale (A)
on the plastigage bag, measure the plastigage width.
NOTE:
The procedure when the measured value exceeds the limit is
same as that described in the “Method by Calculation”.
MAIN BEARING CRUSH HEIGHT

When main bearing cap is removed after being tightened to the
specified torque with main bearings (1) installed, the tip end of
bearing must protrude (B). Refer to EM-81, "
ASSEMBLY" for
the tightening procedure.

If the standard is not met, replace main bearings.
CONNECTING ROD BEARING CRUSH HEIGHT

When connecting rod bearing cap is removed after being tight-
ened to the specified torque with connecting rod bearings (1)
installed, the tip end of bearing must protrude. Refer to EM-81,
"ASSEMBLY" for the tightening procedure (B).

If the standard is not met, replace connecting rod bearings.: 0.012 - 0.022 mm (0.0005 - 0.0009 in)
Limit : 0.065 mm (0.0026 in)
PBIC3278J
A : Example
Standard : There must be crush height.
PBIC3279J
A : Example
Standard : There must be crush height.
PBIC3279J

SERVICE DATA AND SPECIFICATIONS (SDS)
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SERVICE DATA AND SPECIFICATIONS (SDS)PFP:00030
Standard and LimitEBS00U80
GENERAL SPECIFICATIONS
DRIVE BELT
WATER CONTROL VALVE
EXHAUST MANIFOLD
Unit: mm (in)
THERMOSTAT
SPARK PLUG
Unit: mm (in)
CYLINDER HEAD
Unit: mm (in) Engine typeMR18DE
Cylinder arrangementIn-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 arrangementDOHC
Firing order1-3-4-2
Number of piston ringsCompression 2
Oil 1
Compression ratio9.9
Compression pressure
kPa (bar, kg/cm
2 , psi) / 250 rpmStandard 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)
Maximum valve lift 8 mm/ 108°C (0.315 in/ 226°F)
Valve closing temperature More than 90°C (194°F)
Items Limit
Surface distortionEach exhaust port 0.3 (0.012)
Entire part 0.7 (0.028)
Valve opening temperature 80.5 - 83.5°C (177 - 182°F)
Maximum valve lift 8 mm/ 95°C (0.315 in/ 203°F)
Valve closing temperature More than 77°C (171°F)
Plug typeIridium-tipped TYPE
MakeDENSO
Standard typeFXE20HR11
Spark plug gapNominal: 1.1 (0.043)
Items Standard Limit
Head surface distortion — 0.1 (0.004)

EX-1
EXHAUST SYSTEM
B ENGINE
CONTENTS
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SECTION EX
A
EX
Revision: June 20062007 Versa PREPARATION ........................................................... 2
Special Service Tools ............................................... 2
Commercial Service Tools ........................................ 2
EXHAUST SYSTEM ................................................... 3
Checking Exhaust System ....................................... 3Components ............................................................. 3
Removal and Installation .......................................... 4
REMOVAL ............................................................. 4
INSTALLATION ..................................................... 4
INSPECTION AFTER INSTALLATION .................. 5

EX-4Revision: June 2006
EXHAUST SYSTEM
2007 Versa
Removal and InstallationEBS00TSS
REMOVAL
CAUTION:

Be sure to use genuine NISSAN exhaust system parts or equivalents which are specially designed
for heat resistance, corrosion resistance and shape.

Perform the operation with the exhaust system fully cooled down because the system will be hot
just after the engine stops.

Be careful not to cut your hand on heat insulator edge.
1. Disconnect harness connector of heated oxygen sensor 2.

Using Tool, remove heated oxygen sensor 2.
CAUTION:
Be careful not to damage heated oxygen sensor 2.
a.2. Disconnect each joint and mounting rubber.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:

Always replace exhaust gaskets and seal bearings with new ones when installing.

Discard any heated oxygen sensor 2 which has been dropped from a height of more than 0.5 m
(19.7 in) onto a hard surface such as a concrete floor; use a new one.

Before installing a new heated oxygen sensor 2, clean exhaust system threads using the heated
oxygen sensor thread cleaner and apply anti-seize lubricant (commercial service tool).

Do not over tighten heated oxygen sensor 2. Doing so may cause damage to the heated oxygen
sensor 2, resulting in the “MIL” coming on.

Remove deposits from the sealing surface of each connection. Connect them securely to avoid
exhaust leakage.

Temporarily tighten nuts on the exhaust manifold side and bolts on the vehicle side. Check each
part for unusual interference, and then tighten them to the specified torque.

When installing each mounting rubber, avoid twisting or unusual extension in up/down and right/
left directions.
Exhaust Manifold to Exhaust Front Tube
1. Securely insert seal bearing (2) into exhaust manifold (1) side in
the direction shown.

Exhaust front tube (5)
CAUTION:
Be careful not to damage seal bearing surface when install-
ing.
2. Install spring (3), tighten nut (4).

Be careful that the stud bolt nut does not interfere with the
flanged area ( ).

Make sure the spring (3) sits properly on the flange surface by
align it to the locator dimples.Tool number : KV10114400 (J-38365)PBIC3797E

EXHAUST SYSTEM
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Exhaust Front Tube to Center Muffler
1. Securely insert seal bearing (2) into exhaust front tube (1) side
in the direction shown.

Center muffler (5)
CAUTION:
Be careful not to damage seal bearing surface when install-
ing.
2. With spring (3), tighten bolt (4).

Be careful that the stud bolt does not interfere with the flanged
area ( ).
INSPECTION AFTER INSTALLATION

With the engine running, check exhaust tube joints for exhaust leakage and unusual noise.

Check to ensure that brackets and mounting rubbers are installed properly and free from undue stress.
Improper installation could result in excessive noise and vibration.
PBIC3798E

FL-1
FUEL SYSTEM
B ENGINE
CONTENTS
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SECTION FL
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FL
Revision: June 20062007 Versa PRECAUTIONS .......................................................... 2
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 2
PREPARATION ........................................................... 3
Special Service Tools ............................................... 3
Commercial Service Tools ........................................ 3
FUEL SYSTEM ........................................................... 4
Checking Fuel Lines ................................................. 4
General Precautions ................................................ 4
FUEL LEVEL SENSOR UNIT, FUEL FILTER AND
FUEL PUMP ASSEMBLY ........................................... 5Components ............................................................. 5
Removal and Installation .......................................... 5
REMOVAL ............................................................. 5
INSPECTION AFTER REMOVAL ......................... 7
INSTALLATION ..................................................... 7
INSPECTION AFTER INSTALLATION .................. 8
FUEL TANK ................................................................ 9
Components ............................................................. 9
Removal and Installation .......................................... 9
REMOVAL ............................................................. 9
INSTALLATION ................................................... 12
INSPECTION AFTER INSTALLATION ................ 12
SERVICE DATA AND SPECIFICATIONS (SDS) ...... 13
Standard and Limit .................................................. 13
FUEL TANK ......................................................... 13