OIL INFINITI FX35 2007 Service Manual

EM-250
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CYLINDER BLOCK
Revision: 2006 July 2007 FX35/FX45
–Intake manifolds (upper and lower): Refer to EM-179, "INTAKE MANIFOLD" .
–Exhaust manifold: Refer to EM-183, "EXHAUST MANIFOLD AND THREE WAY CATALYST" .
–Fuel tube and fuel injector assembly: Refer to EM-194, "FUEL INJECTOR AND FUEL TUBE" .
–A/C compressor: Refer to ATC-139, "Components" .
–Ignition coil: Refer to EM-191, "IGNITION COIL" .
–Rocker cover: Refer to EM-200, "ROCKER COVER" .
–Other removable brackets
NOTE:
The figure shows an example of widely use engine stand that
can hold mating surface of transmission with drive plate and rear
plate removed.
CAUTION:
Before removing the hanging chains, make sure the engine
stand is stable and there is no risk of overturning.
4. Drain engine oil. Refer to LU-27, "
Changing Engine Oil" .
5. Drain engine coolant from inside engine by removing water drain plugs “B” as shown in the figure.
6. Remove the following parts and related parts (The parts listed in step 3 are not included here).

Oil pan and oil strainer; Refer to EM-187, "OIL PAN AND OIL STRAINER" .

Crankshaft pulley, front cover and timing chain; Refer to EM-203, "TIMING CHAIN" .

Camshaft; Refer to EM-215, "CAMSHAFT" .

Cylinder head; Refer to EM-232, "CYLINDER HEAD" .
7. Remove knock sensor.
CAUTION:
Carefully handle sensor, avoiding shocks.
8. Remove piston and connecting rod assembly as follows:

Before removing piston and connecting rod assembly, check the connecting rod side clearance. Refer
to EM-265, "
CONNECTING ROD SIDE CLEARANCE" .
a. Position crankshaft pin corresponding to connecting rod to be removed onto the bottom dead center.
b. Remove connecting rod bearing cap.
PBIC0085E
PBIC1265E

EM-252
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CYLINDER BLOCK
Revision: 2006 July 2007 FX35/FX45
c. Push out piston pin with stick of outer diameter approximately 20
mm (0.8 in).
12. Remove rear oil seal retainer from cylinder block.

Insert screwdriver or similar tool between rear end of crankshaft counter weight and rear oil seal
retainer, and separate liquid gasket to remove.
CAUTION:
Be careful not to damage the mating surfaces.
13. Using screwdriver or similar tool, and lever off rear oil seal from rear oil seal retainer.
14. Remove main bearing cap as follows:

Before loosening main bearing cap bolts, measure the crankshaft end play. Refer to EM-265, "CRANK-
SHAFT END PLAY" .

Loosen main bearing cap bolts in several different steps.
a. Remove cover attached to the rear left side of cylinder block (next to the starter motor housing).
NOTE:
Bolts (No. 27 shown in the figure) are installed on the inside of
cover.
b. Loosen side bolts (M10) starting from 30 to 21 to remove.
c. Loosen main bearing cap sub bolts (M9) starting from 20 to 11 to remove.
d. Loosen main bearing cap bolts (M12) starting from 10 to 1 to remove.
e. Using main bearing cap remover (SST), remove main bearing cap.
15. Remove crankshaft.
16. Remove main bearings and thrust bearings from cylinder block and main bearing caps. CAUTION:
Identify installation positions, and store them without mixing them up.
EMM0072D
PBIC0090E
PBIC0091E

CYLINDER BLOCK EM-253
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17. If pilot converter must be removed, remove it from the rear end
of the crankshaft using pilot bushing puller (SST).

It is possible to remove pilot converter without hoisting engine
with engine stand.
ASSEMBLY
1. Fully air-blow engine coolant and engine oil passages in cylinder block, cylinder bore and crankcase to remove any foreign material.
CAUTION:
Use a goggles to protect your eye.
2. Install each plug to the cylinder block. (Only screwed-type plugs are shown in the figure.)

Apply sealant to the thread of each plug “A” and “D”.
Use Genuine High Strength Locking Sealant or equiva-
lent. Refer to GI-48, "
RECOMMENDED CHEMICAL PROD-
UCTS AND SEALANTS".

Apply sealant to the thread of each plug “B” and “C”.
Use Anaerobic Liquid Gasket or equivalent. Refer to GI-
48, "RECOMMENDED CHEMICAL PRODUCTS AND SEAL-
ANTS".

Replace copper washers with new ones.

Tighten each plug as specified below.
3. Install main bearings and thrust bearings as follows:
a. Remove dust, dirt and oil on the bearing mating surfaces of cylinder block and main bearing caps.
b. Install thrust bearings to the both sides of the No. 3 journal hous- ing on cylinder block and main bearing cap.

Install thrust bearings with the oil groove facing the crankshaft
arm (outside).

Install thrust bearing with a protrusion on one end on cylinder
block, and thrust bearing with a protrusion at center on main
bearing cap. Align each protrusion with mating notch.
PBIC0092E
PBIC1265E
Part Washer Tightening torque
A Yes 53.9 N·m (5.5 kg-m, 40 ft-lb)
B No 19.6 N·m (2.0 kg-m, 14 ft-lb)
C Yes 62.7 N·m (6.4 kg-m, 46 ft-lb)
D Yes 62.7 N·m (6.4 kg-m, 46 ft-lb)
PBIC2368E

EM-254
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CYLINDER BLOCK
Revision: 2006 July 2007 FX35/FX45
c. Install main bearings paying attention to the direction.

Main bearing with oil hole and groove goes on cylinder block.
The one without them goes on main bearing cap.

Before installing main bearings, apply engine oil to the bear-
ing surface (inside). Do not apply engine oil to the back sur-
face, but thoroughly clean it.

When installing, align main bearing stopper protrusion to cut-
out of cylinder block and main bearing caps.

Ensure the oil holes on cylinder block and those on the corre-
sponding bearing are aligned.
4. Install pilot converter to crankshaft, if removed.

With drift [outer diameter: approx. 35 mm (1.38 in)], press-fit
as far as it will go.

Press-fit pilot converter with its chamfering side facing crank-
shaft as shown in the figure.

It is possible to remove pilot converter without hoisting engine
with engine stand.
5. Install crankshaft to cylinder block.

While turning crankshaft by hand, make sure it turns smoothly.
6. Install main bearing caps.

Align the identification number to the journal position to install.

Install the upper side of the identification number facing the
front of engine. (The number shall be read correctly from the
rear of engine.)

Using plastic hammer or similar tool, tap them lightly to seat
them on the installation position.
NOTE:
Main bearing cap cannot be replaced as a single parts, because
it is machined together with cylinder block.
PBIC2369E
EMP0569D
SEM537E
PBIC0095E

CYLINDER BLOCK EM-255
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Revision: 2006 July 2007 FX35/FX45
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-265, "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 N·m (4.0 kg-m, 29 ft-lb)
: 29.4 N·m (3.0 kg-m, 22 ft-lb)
PBIC0090E
PBIC0096E
: 49 N·m (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-256
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CYLINDER BLOCK
Revision: 2006 July 2007 FX35/FX45

Apply a continuous bead of liquid gasket with tube presser
[SST: WS39930000 ( — )] to rear oil seal retainer as
shown in the figure.
Use Genuine RTV Silicone Sealant or equivalent. Refer to
GI-48, "
RECOMMENDED CHEMICAL PRODUCTS AND
SEALANTS".
10. Install piston to connecting rod.
a. Using snap ring pliers, install new snap ring to the groove of the piston rear side.

Insert it fully into groove to install.
b. Install piston to connecting rod.

Using industrial use drier or similar tool, heat piston until piston pin can be pushed in by hand without
excess force [approx. 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 on the piston head and the oil
holes and the cylinder No. on connecting rod are positioned
as shown in the figure.
c. Using snap ring pliers, install new snap rings to the groove of the piston front side.

Insert it fully into groove to install.

After installing, make sure that connecting rod moves
smoothly.
11. Using piston ring expander (commercial service tool), install pis- ton rings.
CAUTION:

When installing piston rings, be careful not to damage
piston.

Be careful not to damage piston rings by expending them
excessively.

Position each ring with the gap as shown in the figure, refer-
ring to the piston front mark.

Install top ring and second ring with the stamped surface fac-
ing upward.
12. Install connecting rod bearings to connecting rod and connecting rod bearing cap.

Before installing connecting rod bearings, apply engine oil to the bearing surface (inside). Do not apply
engine oil to the back surface, but thoroughly clean it.
SBIA0391E
PBIC0099E
PBIC0087E
Stamped mark
Top ring : R
Second ring : 2R
PBIC0100E

CYLINDER BLOCK EM-257
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Revision: 2006 July 2007 FX35/FX45

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-265,
"CONNECTING ROD SIDE CLEARANCE" .
PBIC2370E
PBIC0102E
PBIC2164E
: 14.7 N·m (1.5 kg-m, 11 ft-lb)
PBIC0104E

EM-260
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CYLINDER BLOCK
Revision: 2006 July 2007 FX35/FX45
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-267, "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-271, "
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-264
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Revision: 2006 July 2007 FX35/FX45
Main Bearing Grade Table (All Journals)
Unit: mm (in)
Use Undersize Bearing Usage Guide

When the specified main bearing oil clearance is not obtained with standard size main bearings, use
underside (US) bearing.

When using undersize (US) bearing, measure the main bearing inner diameter with bearing installed, and
grind main journal so that the main bearing oil clearance satisfies the standard.
CAUTION:
In grinding crankshaft main journal to use undersize bear-
ings, keep the fillet R [1.5 mm (0.059 in)].
Bearing undersize table
Unit: mm (in)
Grade number Thickness Identification color Remarks
0 2.483 - 2.486 (0.0978 - 0.0979) Black
Grade and color are the same
for upper and lower bearings.
1 2.486 - 2.489 (0.0979 - 0.0980) Brown
2 2.489 - 2.492 (0.0980 - 0.0981) Green
3 2.492 - 2.495 (0.0981 - 0.0982) Yellow
4 2.495 - 2.498 (0.0982 - 0.0983) Blue
5 2.498 - 2.501 (0.0983 - 0.0985) Pink
6 2.501 - 2.504 (0.0985 - 0.0986) Purple
7 2.504 - 2.507 (0.0986 - 0.0987) White
8 2.507 - 2.510 (0.0987 - 0.0988) Red
01 UPR 2.483 - 2.486 (0.0978 - 0.0979) Black
Grade and color are different
for upper and lower bearings.
LWR 2.486 - 2.489 (0.0979 - 0.0980) Brown
12 UPR 2.486 - 2.489 (0.0979 - 0.0980) Brown
LWR 2.489 - 2.492 (0.0980 - 0.0981) Green
23 UPR 2.489 - 2.492 (0.0980 - 0.0981) Green
LWR 2.492 - 2.495 (0.0981 - 0.0982) Yellow
34 UPR 2.492 - 2.495 (0.0981 - 0.0982) Yellow
LWR 2.495 - 2.498 (0.0982 - 0.0983) Blue
45 UPR 2.495 - 2.498 (0.0982 - 0.0983) Blue
LWR 2.498 - 2.501 (0.0983 - 0.0985) Pink
56 UPR 2.498 - 2.501 (0.0983 - 0.0985) Pink
LWR 2.501 - 2.504 (0.0985 - 0.0986) Purple
67 UPR 2.501 - 2.504 (0.0985 - 0.0986) Purple
LWR 2.504 - 2.507 (0.0986 - 0.0987) White
78 UPR 2.504 - 2.507 (0.0986 - 0.0987) White
LWR 2.507 - 2.510 (0.0987 - 0.0988) Red
PBIC2373E
Size Thickness
US 0.25 (0.0098) 2.618 - 2.626 (0.1031 - 0.1034)

CYLINDER BLOCK EM-265
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Inspection After DisassemblyNBS003IT
CRANKSHAFT END PLAY

Measure the clearance between thrust bearings and crankshaft
arm when crankshaft is moved fully forward or backward with
dial indicator.

If the measured value exceeds the limit, replace thrust bearings,
and measure again. If it still exceeds the limit, replace crank-
shaft also.
CONNECTING ROD SIDE CLEARANCE

Measure the side clearance between connecting rod and crank-
shaft arm with feeler gauge.

If the measured value exceeds the limit, replace connecting rod,
and measure again. If it still exceeds the limit, replace crank-
shaft also.
PISTON TO PISTON PIN OIL CLEARANCE
Piston Pin Hole Diameter
Measure the inner diameter of piston pin hole with inside microme-
ter.
Piston Pin Outer Diameter
Measure the outer diameter of piston pin with micrometer.
Piston to Piston Pin Oil Clearance
(Piston to piston pin oil clearance) = (Piston pin hole diameter) – (Piston pin outer diameter)

If the calculated value is out of the standard, replace piston and piston pin assembly. Standard : 0.10 - 0.25 mm (0.0039 - 0.0098 in)
Limit : 0.30 mm (0.0118 in)
PBIC2377E
Standard : 0.20 - 0.35 mm (0.0079 - 0.0138 in)
Limit : 0.40 mm (0.0157 in)
PBIC0115E
Standard : 21.993 - 22.005 mm (0.8659 - 0.8663 in)
PBIC0116E
Standard : 21.989 - 22.001 mm (0.8657 - 0.8662 in)
PBIC0117E
Standard : 0.002 - 0.006 mm (0.0001 - 0.0002 in)