2006 INFINITI M35 check

EM-252
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CYLINDER BLOCK
Revision: 2006 January2006 M35/M45
c. Using hammer handle or similar tool, push piston and connect-
ing rod assembly out to the cylinder head side.
CAUTION:
Be careful not to damage the cylinder wall and crankshaft
pin, resulting from an interference of the connecting rod big
end.
11. Remove connecting rod bearings from connecting rod and connecting rod bearing cap.
CAUTION:
Identify installation positions, and store them without mixing them up.
12. Remove piston rings from piston.
Before removing the piston rings, check the piston ring side clearance. Refer to EM-267, "PISTON
RING SIDE CLEARANCE" .
Use piston ring expander (commercial service tool).
CAUTION:
When removing piston rings, be careful not to damage
piston.
Be careful not to damage piston rings by expanding them
excessively.
13. Remove piston from connecting rod as follows:
a. Using snap ring pliers, remove the snap rings.
b. Heat piston to 60 to 70
C (140 to 158F) with industrial use drier
or equivalent.
PBIC0086E
PBIC0087E
PBIC0088E
PBIC0089E

EM-256
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CYLINDER BLOCK
Revision: 2006 January2006 M35/M45
7. Install each main bearing cap bolt as follows:
a. Apply new engine oil to threads and seating surface of main
bearing cap bolts, and tighten all bolts temporarily.
b. Tighten main bearing cap bolt (M12) in order of 1 to 10.
c. Tighten main bearing cap sub bolt (M9) in order of 11 to 20.
d. Tighten main bearing cap bolt (M12) to 40 degrees clockwise in
order of 1 to 10. (Angle tightening)
CAUTION:
Use angle wrench (SST) to check tightening angle in step
“d” and “e”. Do not make judgment by visual inspection.
e. Tighten main bearing cap sub bolt (M9) to 30 degrees clockwise
in order of 11 to 20. (Angle tightening)
f. Tighten side bolt (M10) in order of 21 to 30.
After installing main bearing cap bolts, make sure that crankshaft can be rotated smoothly.
Check the crankshaft end play. Refer to EM-266, "CRANKSHAFT END PLAY" .
g. Install cover of cylinder block rear left side (next to the starter motor housing).
8. Install new rear oil seal on rear oil seal retainer.
Install new rear oil seal so that each seal lip is oriented as
shown in the figure.
Install rear oil seal to rear oil seal retainer with rear oil seal
drift (commercial service tool).
Tap until flattened with front edge of rear oil seal retainer. Do
not damage or scratch outer circumference of oil seal.
Make sure the garter spring is in position and seal lips not
inverted.
9. Install rear oil seal retainer.
Apply new engine oil to both oil seal lip and dust seal lip.: 39.2 Nꞏm (4.0 kg-m, 29 ft-lb)
: 29.4 Nꞏm (3.0 kg-m, 22 ft-lb)
PBIC0090E
PBIC0096E
: 49 Nꞏm (5.0 kg-m, 36 ft-lb)
SEM715A
Rear oil seal drift
Outer diameter : 102 mm (4.02 in)
Inner diameter : 86 mm (3.39 in)
PBIC0097E

EM-258
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CYLINDER BLOCK
Revision: 2006 January2006 M35/M45
When installing, align the connecting rod bearing stopper pro-
trusion with the cutout of connecting rod and connecting rod
bearing cap to install.
Ensure the oil holes on connecting rod and that on the corre-
sponding bearing are aligned.
13. Install piston and connecting rod assembly to crankshaft.
Position the crankshaft pin corresponding to connecting rod to be installed onto the bottom dead center.
Apply engine oil sufficiently to the cylinder bore, piston and crankshaft pin journal.
Match the cylinder position with the cylinder No. on connecting rod to install.
Be sure that front mark on piston head is facing front of engine.
Using piston ring compressor [SST: EM03470000 (J8037)],
install piston with the front mark on the piston head facing the
front of engine.
CAUTION:
Be careful not to damage cylinder wall and crankshaft pin,
resulting from an interference of the connecting rod big
end.
14. Install connecting rod bearing cap.
Match the stamped cylinder number marks on connecting rod
with those on cap to install.
15. Tighten connecting rod nuts as follows:
a. Apply new engine oil to the threads and seats of connecting rod bolts and nuts.
b. Tighten connecting rod nuts.
c. Then tighten all connecting rod nuts 60 degrees clockwise.
(Angle tightening)
CAUTION:
Use angle wrench (SST) to check tightening angle. Do not
make judgment by visual inspection.
After tightening connecting rod nuts, make sure that crank-
shaft rotates smoothly.
Check the connecting rod side clearance. Refer to EM-266,
"CONNECTING ROD SIDE CLEARANCE" .
PBIC2370E
PBIC0102E
PBIC2164E
: 14.7 Nꞏm (1.5 kg-m, 11 ft-lb)
PBIC0104E

EM-260
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CYLINDER BLOCK
Revision: 2006 January2006 M35/M45
*: For the service parts, the grade for fitting cannot be selected between piston pin and connecting rod. (Only “0” grade is available.) The
information at the shipment from the plant is described as a reference.
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 (“1”, “2” or “3”) on the rear upper side
between cylinder block banks, and select piston of the same grade.
NOTE:
Piston is available with piston pin as a set for the service part. (Only
“0” grade piston pin is available.)
When Cylinder Block is Reused
1. Measure the cylinder bore inner diameter. Refer to EM-270, "Cylinder Bore Inner Diameter" .
2. Determine the bore grade by comparing the measurement with the values the “Cylinder bore inner diame-
ter” of the “Piston Selection Table”. Select piston of the same grade.
Piston Selection Table
Unit: mm (in)
NOTE:
Piston is available together with piston pin as assembly.
Piston pin (piston pin hole) grade is provided only for the parts installed at the plant. For service parts, no
piston pin grades can be selected. (Only “0” grade is available.)
No second grade mark is available on piston.
PBIC2371E
PBIC2372E
Grade 1 2 (or no mark) 3
Cylinder bore inner diameter93.000 - 93.010
(3.6614 - 3.6618)93.010 - 93.020
(3.6618 - 3.6622)93.020 - 93.030
(3.6622 - 3.6626)
Piston skirt diameter92.980 - 92.990
(3.6606 - 3.6610)92.990 - 93.000
(3.6610 - 3.6614)93.000 - 93.010
(3.6614 - 3.6618)

CYLINDER BLOCK
EM-261
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Revision: 2006 January2006 M35/M45
HOW TO SELECT CONNECTING ROD BEARING
When New Connecting Rod and Crankshaft are Used
Check pin diameter grade (“0”, “1” or “2”) on front of crankshaft, and
select connecting rod bearing of the same grade.
NOTE:
There is no grading for connecting rod big end diameter.
When Crankshaft and Connecting Rod are Reused
1. Measure the connecting rod big end diameter. Refer to EM-268, "CONNECTING ROD BIG END DIAME-
TER" .
2. Make sure that the connecting rod big end diameter is within the standard value.
3. Measure the crankshaft pin journal diameter. Refer to EM-272, "
CRANKSHAFT PIN JOURNAL DIAME-
TER" .
4. Determine the grade of crankshaft pin diameter grade by corresponding to the measured dimension in
“Crankshaft pin journal diameter” column of “Connecting Rod Bearing Selection Table”.
5. Select connecting rod bearing of the same grade.
Connecting Rod Bearing Selection Table
Unit: mm (in)
Unit: mm (in)
Under Size 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 crankshaft pin so that the connecting rod bearing oil clearance satisfies the standard.
CAUTION:
In grinding crankshaft pin to use undersize bearings, keep
the fillet R [1.5 mm (0.059 in)].
Bearing undersize table
Unit: mm (in)
PBIC2374E
Connecting rod big end diameter 55.000 - 55.013 (2.1654 - 2.1659)
Crankshaft Connecting rod bearing
Crankshaft pin journal diameter Grade (Mark) Dimension (Bearing thickness range) Bearing grade No. Color
51.968 - 51.974 (2.0460 - 2.0462) 0 1.500 - 1.503 (0.0591 - 0.0592) STD 0 No color
51.962 - 51.968 (2.0457 - 2.0460) 1 1.503 - 1.506 (0.0592 - 0.0593) STD 1 Brown
51.956 - 51.962 (2.0455 - 2.0457) 2 1.506 - 1.509 (0.0593 - 0.0594) STD 2 Green
PBIC2373E
Size Thickness
US 0.25 (0.0098) 1.626 - 1.634 (0.0640 - 0.0643)

EM-268
[VK45DE]
CYLINDER BLOCK
Revision: 2006 January2006 M35/M45
CONNECTING ROD BEND AND TORSION
Check with connecting rod aligner.
If it exceeds the limit, replace connecting rod assembly.
CONNECTING ROD BIG END DIAMETER
Install connecting rod bearing cap without installing connecting
rod bearing, and tightening connecting rod bolts to the specified
torque. Refer to EM-254, "
ASSEMBLY" for the tightening proce-
dure.
Measure the inner diameter of connecting rod big end with
inside micrometer.
If out of the standard, replace connecting rod assembly.
CONNECTING ROD BUSHING OIL CLEARANCE
Connecting Rod Bushing Inner Diameter
Measure the inner diameter of connecting rod bushing with inside
micrometer.Bend:
Limit : 0.15 mm (0.0059 in) per 100 mm (3.94 in) length
To r s i o n :
Limit : 0.30 mm (0.012 in) per 100 mm (3.94 in) length
PBIC2077E
Standard : 55.000 - 55.013 mm (2.1654 - 2.1659 in)
PBIC1641E
Standard : 22.000 - 22.012 mm (0.8661 - 0.8666 in)
PBIC0120E

CYLINDER BLOCK
EM-275
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Revision: 2006 January2006 M35/M45
CRUSH HEIGHT OF MAIN BEARING
When main bearing cap is removed after being tightened to the
specified torque with main bearings installed, the tip end of bear-
ing must protrude. Refer to EM-254, "
ASSEMBLY" for the tight-
ening procedure.
If the standard is not met, replace main bearings.
CRUSH HEIGHT OF CONNECTING ROD BEARING
When connecting rod bearing cap is removed after being tight-
ened to the specified torque with connecting rod bearings
installed, the tip end of bearing must protrude. Refer to EM-254,
"ASSEMBLY" for the tightening procedure.
If the standard is not met, replace connecting rod bearings.
DRIVE PLATE
Check drive plate and signal plate for deformation or cracks.
CAUTION:
Do not disassemble drive plate.
Do not place drive plate with signal plate facing down.
When handling signal plate, take care not to damage or
scratch it.
Handle signal plate in a manner that prevents it from
becoming magnetized.
If anything is found, replace drive plate.Standard : There must be crush height.
SEM502G
Standard : There must be crush height.
PBIC1646E
PBIC2367E

EX-1
EXHAUST SYSTEM
B ENGINE
CONTENTS
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SECTION EX
A
EX
Revision: 2006 January2006 M35/M45
EXHAUST SYSTEM
PREPARATION ........................................................... 2
Special Service Tools ............................................... 2
Commercial Service Tools ........................................ 2
EXHAUST SYSTEM ................................................... 3
Checking Exhaust System ....................................... 3
Components ............................................................. 4
Removal and Installation .......................................... 5
REMOVAL ........................................................
..... 5INSTALLATION ..................................................... 5
INSPECTION AFTER INSTALLATION .................. 5
Components ............................................................. 6
Removal and installation .......................................... 7
REMOVAL ........................................................
..... 7
INSTALLATION ..................................................... 7
INSPECTION AFTER INSTALLATION .................. 7