NISSAN LATIO 2007 Service Repair Manual

EM-82Revision: June 2006
CYLINDER BLOCK
2007 Versa
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 bearing to the center position of cylinder block and main bearing
cap.

The difference (A) between main bearing upper (1) and
main bearing lower (3) should be 0.85 mm (0.033 in) or
less when installing.

Ensure the oil holes on cylinder 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.
2 : Cylinder block
4 : Main bearing cap
PBIC3237J
PBIC3236J
A : Dowel pin hole
PBIC3238J

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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.
15. Tighten main bearing cap bolts in two steps.
NOTE:
Tighten main bearing cap bolts in numerical order as shown:

After installing bolts, make sure that crankshaft can be rotated smoothly by hand.

Check crankshaft end play. Refer to EM-95, "CRANKSHAFT END PLAY" .
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 piston 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.
: Engine front
PBIC3239J
: Engine front
Step 1 : 34.3 N·m (3.5 kg-m, 25 ft-lb)
Step2 60° clockwise
PBIC3235J
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

EM-84Revision: June 2006
CYLINDER BLOCK
2007 Versa
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.

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 corresponding 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

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Using a piston ring compressor [SST: EM03470000 (J-8037)]
(A) or suitable tool, 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 interference of the connecting rod
big end.
22. Install connecting rod cap.

Match the stamped cylinder number marks (C) on connecting
rod 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 these 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-103, "
CONNECTING ROD BOLT
OUTER DIAMETER" .
24. Apply new engine oil to the threads and seats of connecting rod
bolts.
25. Tighten bolts in three steps

After tightening connecting rod bolt, make sure that crankshaft rotates smoothly.

Check the connecting rod side clearance. Refer to EM-95, "CONNECTING ROD SIDE CLEARANCE" .
26. Install oil pan (upper). Refer to EM-24, "
OIL PAN" .
NOTE:
Install the rear oil seal after installing the oil pan (upper).
27. Install rear oil seal. Refer to EM-24, "
OIL PAN" .
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 : 27.4 N·m (2.8 kg-m, 20 ft-lb)
Step 2 : 0 N·m (0 kg-m, 0 ft-lb)
Step 3 : 19.6 N·m (2.0 kg-m, 14 ft-lb)
PBIC3510J

EM-86Revision: June 2006
CYLINDER BLOCK
2007 Versa
28. Install flywheel (M/T models) or drive plate (1) (A/T or CVT mod-
els).

Secure crankshaft using Tool. (A), and tighten bolts crosswise
over several times.
NOTE:
A/T model shown CVT and M/T similar.

Install pilot converter (1), drive plate (2) and reinforcement
plate (3) as shown (A/T or CVT models).

Using a suitable tool of 33 mm. (1.30 in) in diameter, press-fit
pilot converter into the end of crankshaft until it stops (A/T or
CVT models).
NOTE:
M/T models have no pilot converter and reinforcement plate.
29. Install knock sensor (1) with connector facing toward the rear of
engine.
CAUTION:

Never tighten bolts while holding the connector.

If any impact by dropping is applied to knock sensor,
replace it with a new one.
NOTE:

Make sure that there is no foreign material on the cylinder
block mating surface and the back surface of knock sensor.

Make sure that knock sensor does not interfere with other parts.
30. Install crankshaft position sensor (POS) and crankshaft position sensor (POS) cover.
CAUTION:

Avoid impacts such as a dropping.

Keep it away from metal particles.

Never place sensor in a location where it is exposed to magnetism.
31. Install oil filter (for intake valve timing control) (1) in the direction
shown.

Make sure that the oil filter does not protrude from the upper
surface of cylinder block (2) after installation.
32. Assemble in the reverse order of disassembly.Tool number : KV11105210 (J-44716)
PBIC3998E
A : Crankshaft rear end
B: R
PBIC4075E
A : Cylinder block left side
: Engine front
PBIC3246J
PBIC3260J

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How to Select Piston and Bearing EBS00U7Y
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 standards and the selection method of the
selective fitting parts, refer to the text.
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-99, "Cylinder Bore Inner Diameter" .
2. Determine the bore grade by comparing the measurement with the values under the cylinder bore inner
diameter of the “Piston Selection Table”.
Selection points Selection parts Selection items Selection methods
Between cylinder block and
crankshaftMain bearingMain 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 rodConnecting rod bearingConnecting rod bearing grade
(bearing thickness)Combining service grades for
connecting rod big end diame-
ter and crankshaft pin outer
diameter determine connecting
rod bearing selection.
Between cylinder block and pis-
tonPiston and piston pin assembly
(piston is available together
with piston pin as an assembly.)Piston grade (piston outer
diameter)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

EM-88Revision: June 2006
CYLINDER BLOCK
2007 Versa
3. Select piston of the same grade.
Piston Selection Table
Unit: mm (in)
NOTE:

Piston is available together with piston pin as an assembly.

There is no piston pin (piston pin hole) grade.
HOW TO SELECT CONNECTING ROD BEARING
When New Connecting Rod and Crankshaft are Used
1. Apply connecting rod big end diameter grade stamped (C) on
connecting rod side face to the row in the “Connecting Rod
Bearing Selection Table”.
2. Apply crankshaft pin journal diameter grade stamped on crank-
shaft front side to the column in the “Connecting Rod Bearing
Selection Table”.
3. Read the symbol at the cross point of selected row and column in the “Connecting Rod Bearing Selection
Table”.
4. Apply the symbol obtained to the “Connecting Rod Bearing Grade Table” to select connecting rod bearing.
When Crankshaft and Connecting Rod are Reused
1. Measure the dimensions of the connecting rod big end diameter and crankshaft pin journal diameter indi-
vidually. Refer to EM-97, "
CONNECTING ROD BIG END DIAMETER" and EM-100, "CRANKSHAFT
PIN JOURNAL DIAMETER" .
A : Identification code
B : Front mark
C : Piston grade number
D : Sub grade number
PBIC3589J
Grade number (Mark) 1 2 [or no mark (piston only)]
Cylinder bore Inner diameter 84.000 - 84.010 (3.3071 - 3.3075) 84.010 - 84.020 (3.3075 - 3.3079)
Piston skirt diameter 83.970 - 83.980 (3.3059 - 3.3063) 83.980 - 83.990 (3.3063 - 3.3067)
A : Oil hole
B : Cylinder number
D : Small end diameter grade
E : Front mark
PBIC3262J
A : No. 1 pin journal diameter grade
B : No. 2 pin journal diameter grade
C : No. 3 pin journal diameter grade
D : No. 4 pin journal diameter grade
E : No. 1 main journal diameter grade
F : No. 2 main journal diameter grade
G : No. 3 main journal diameter grade
H : No. 4 main journal diameter grade
I : No. 5 main journal diameter grade
PBIC3261J

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2. Apply the measured dimension to the “Connecting Rod Bearing Selection Table”.
3. Read the symbol at the cross point of selected row and column in the “Connecting Rod Bearing Selection
Table”.
4. Apply the symbol obtained to the “Connecting Rod Bearing Grade Table” to select connecting rod bearing.
Connecting Rod Bearing Selection Table
PBIC4077E

EM-90Revision: June 2006
CYLINDER BLOCK
2007 Versa
Connecting Rod Bearing Grade Table
Unit: mm (in)
Undersize Bearings Usage Guide

When the specified connecting rod bearing oil clearance is not obtained with standard size connecting rod
bearings, use undersize (US) bearings.

When using undersize (US) bearing, measure the connecting rod bearing inner diameter with bearing
installed, and grind the crankshaft pin so that the connecting rod bearing oil clearance satisfies the stan-
dard.
CAUTION:
In grinding crankshaft pin to use undersize bearings, keep the
fillet R [1.5 - 1.7 mm (0.059 - 0.067 in)] (A).
Bearing undersize table
Unit: mm (in) Grade number Thickness Identification color Remarks
0 1.494 - 1.497 (0.0588 - 0.0589) Black
Grade and color are the same
for upper and lower bearings. 1 1.497 - 1.500 (0.0589 - 0.0591) Brown
2 1.500 - 1.503 (0.0591- 0.0592) Green
3 1.503 - 1.506 (0.0592 - 0.0593) Yellow
4 1.506 - 1.509 (0.0593 - 0.0594) Blue
01UPR 1.494 - 1.497 (0.0588 - 0.0589) Black
Grade and color are different
between upper and lower
bearings. LWR 1.497 - 1.500 (0.0589 - 0.0591) Brown
12UPR 1.497 - 1.500 (0.0589 - 0.0591) Brown
LWR 1.500 - 1.503 (0.0591 - 0.0592) Green
23UPR 1.500 - 1.503 (0.0591 - 0.0592) Green
LWR 1.503 - 1.506 (0.0592 - 0.0593) Yellow
34UPR 1.503 - 1.506 (0.0592 - 0.0593) Yellow
LWR 1.506 - 1.509 (0.0593 - 0.0594) Blue
PBIC3263J
Size Thickness
US 0.25 (0.0098) 1.623 - 1.631 (0.0639 - 0.0642)

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HOW TO SELECT MAIN BEARING
When New Cylinder Block and Crankshaft are Used
1. “Main Bearing Selection Table” rows correspond to main bearing
housing grade on rear left side of cylinder block (L).

If there is a correction stamp mark on cylinder block, use it as
a correct reference.
2. Apply main journal diameter grade stamped on crankshaft front
side to column in the “Main Bearing Selection Table”.
3. Read the symbol at the cross point of selected row and column in the “Main Bearing Selection Table”.
CAUTION:
There are two main bearing selection tables. One is for No. 1, 4 and 5 journals and the other is for
No. 2 and 3 journals. Make certain to use the appropriate table. This is due to differences in the
specified clearances.
4. Apply the symbol obtained to the “Main Bearing Grade Table” to select main bearing.
NOTE:
Service part is available as a set of both upper and lower.
When Cylinder Block and Crankshaft are Reused
1. Measure the dimensions of the cylinder block main bearing housing inner diameter and crankshaft main
journal diameter individually. Refer to EM-98, "
MAIN BEARING HOUSING INNER DIAMETER" and EM-
100, "CRANKSHAFT MAIN JOURNAL DIAMETER" .
2. Apply the measured dimension to the “Main Bearing Selection Table”.
3. Read the symbol at the cross point of selected row and column in the “Main Bearing Selection Table”.
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
A : No. 1 pin journal diameter grade
B : No. 2 pin journal diameter grade
C : No. 3 pin journal diameter grade
D : No. 4 pin journal diameter grade
E : No. 1 main journal diameter grade
F : No. 2 main journal diameter grade
G : No. 3 main journal diameter grade
H : No. 4 main journal diameter grade
I : No. 5 main journal diameter grade
PBIC3261J