2004 INFINITI FX35 ESP

TIMING CHAIN
EM-201
[VK45DE]
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Revision: 2004 November 2004 FX35/FX45
INSPECTION AFTER REMOVAL
Timing Chain
Check tor cracks and any excessive wear at the roller links and link
plates. Replace timing chain as necessary.
INSTALLATION
NOTE:

The above figure shows the relationship between the mating mark on each timing chain and that on the
corresponding sprocket, with the components installed.

Parts with an identification mark (R or L) should be installed on the corresponding bank according to the
mark.
Parts with an identification mark:
–Camshaft sprocket (INT)
–Dowel pin groove of camshaft sprocket (EXH) (camshaft sprocket is same part both banks)
–Chain tension guide
–Chain slack guide

Because of parallel manufacture, there are two types of mark (link colors) for timing chain.

To install timing chain and related parts, start with those on right bank. The procedure for installing parts
on left bank is omitted because it is the same as that for installation on right bank.
PBIC0282E
PBIC2344E

CYLINDER HEAD
EM-225
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Revision: 2004 November 2004 FX35/FX45

If the engine speed is out of specified range, check battery liquid for proper gravity. Check engine
speed again with normal battery gravity.

If compression pressure is below minimum value, check valve clearances and parts associated with
combustion chamber (valve, valve seat, piston, piston ring, cylinder bore, cylinder head, cylinder head
gasket). After the checking, measure compression pressure again.

If some cylinders have low compression pressure, pour small amount of engine oil into the spark plug
hole of the cylinder to re-check it for compression.
–If the added engine oil improves the compression, piston rings may be worn out or damaged. Check the
piston rings and replace if necessary.
–If the compression pressure remains at low level despite the addition of engine oil, valves may be mal-
functioning. Check valves for damage. Replace valve or valve seat accordingly.

If two adjacent cylinders have respectively low compression pressure and their compression remains
low even after the addition of engine oil, gaskets are leaking. In such a case, replace cylinder head gas-
kets.
8. After inspection is completed, install removed parts in the reverse order of removal.
9. Start engine, and make sure that engine runs smoothly.
10. Perform trouble diagnosis. If DTC appears, erase it. Refer to EC-726, "
TROUBLE DIAGNOSIS" .
Removal and InstallationABS006IQ
REMOVAL
1. Remove engine assembly from vehicle. Refer to EM-236, "ENGINE ASSEMBLY" .
2. Remove exhaust manifold. Refer to EM-178, "
EXHAUST MANIFOLD AND THREE WAY CATALYST" .
3. Remove camshaft. Refer to EM-208, "
CAMSHAFT" .
1. Engine coolant temperature sensor 2. Washer 3. Cylinder head gasket (left bank)
4. Harness bracket 5. Cylinder head (right bank) 6. Cylinder head bolt
7. Cylinder head gasket (right bank) 8. Cylinder head bolt 9. Cylinder head (left bank)
PBIC2407E

EM-242
[VK45DE]
CYLINDER BLOCK
Revision: 2004 November 2004 FX35/FX45
–Rocker cover; Refer to EM-193, "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-26, "
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-181, "OIL PAN AND OIL STRAINER" .

Crankshaft pulley, front cover and timing chain; Refer to EM-196, "TIMING CHAIN" .

Camshaft; Refer to EM-208, "CAMSHAFT" .

Cylinder head; Refer to EM-224, "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-256, "
CONNECTING ROD SIDE CLEARANCE" .
a. Position crankshaft pin corresponding to connecting rod to be removed onto the bottom dead center.
b. Remove connecting rod cap.
c. Using hammer handle or similar tool, push the piston and con-
necting rod assembly out to the cylinder head side.
9. Remove connecting rod bearings from connecting rod and connecting rod cap.
CAUTION:
Identify installation positions, and store them without mixing them up.
PBIC0085E
PBIC1265E
PBIC0086E

EM-248
[VK45DE]
CYLINDER BLOCK
Revision: 2004 November 2004 FX35/FX45
11. Using piston ring expander (commercial service tool), install pis-
ton rings.
CAUTION:
Be careful not to damage piston.

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 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.

When installing, align the connecting rod bearing stopper pro-
trusion with the cutout of connecting rod and connecting rod
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.

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 cap.

Match the stamped cylinder number marks on connecting rod
with those on cap to install.Stamped mark
Top ring : R
Second ring : 2R
PBIC0100E
PBIC2370E
PBIC0102E
PBIC2164E

CYLINDER BLOCK
EM-251
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Revision: 2004 November 2004 FX35/FX45
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.
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-258, "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-262, "
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 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.
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)
PBIC2374E
Connecting rod big end diameter 55.000 - 55.013 (2.1654 - 2.1659)
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

EM-252
[VK45DE]
CYLINDER BLOCK
Revision: 2004 November 2004 FX35/FX45
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)
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 upper side between cylinder block banks.
2. “Main Bearing Selection Table” columns correspond to main
journal diameter grade on front side of crankshaft.
3. Select main bearing grade at the point where selected row and column meat in “Main Bearing Selection
Table”.
CAUTION:

Initial clearance for No. 1, 5 journal and No. 2, 3, 4 journal is different. Use two different selection
table for each part.

No. 1, 5 journal and No. 2, 3, 4 journal have the same signs but different measures. Do not con-
fuse.
4. Apply sign at crossing in above step 3 to “Main Bearing Grade Table”.
NOTE:

“Main Bearing Grade Table” applies to all journals.

Service parts is available as a set of both upper and lower.
PBIC2373E
Size Thickness
US 0.25 (0.0098) 1.626 - 1.634 (0.0640 - 0.0643)
PBIC2371E
PBIC2374E

CYLINDER BLOCK
EM-253
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Revision: 2004 November 2004 FX35/FX45
When Cylinder Block and Crankshaft Are Reused:
1. Measure cylinder block main bearing housing inner diameter and crankshaft main journal diameter. Refer
to EM-260, "
MAIN BEARING HOUSING INNER DIAMETER" and EM-261, "CRANKSHAFT MAIN
JOURNAL DIAMETER" .
2. Correspond the measured dimension in “Cylinder block main bearing housing inner diameter” row of
“Main Bearing Selection Table”.
3. Correspond the measured dimension in “Crankshaft main journal diameter” column of “Main Bearing
Selection Table”.
4. Follow step 3 and later in “When New Cylinder Block and Crankshaft are Used:”.
Main Bearing Selection Table (No. 1 and 5 Journal)
PBIC2375E

FRONT OIL SEAL
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Revision: 2004 November 2004 FX35/FX45
FRONT OIL SEALPFP:38189
Removal and InstallationADS000N7
REMOVAL
1. Remove the front propeller shaft. Refer to PR-4, "REMOVAL" .
2. Put a matching mark on the end of the drive pinion correspond-
ing to the B position matching mark on the final drive companion
flange.
CAUTION:

For matching mark, use paint. Never damage drive pin-
ion.

The matching mark B on the final drive companion flange
indicates the maximum vertical runout position.
3. Using the drive pinion flange wrench.Remove drive pinion lock
nut with tool.
4. Remove the companion flange using puller (commercial service
tool)
5. Remove the front oil seal using outer race puller.
SDIA1609E
Tool number : KV40104000 ( – )
SDIA1647E
SDIA1642E
Tool number : ST33290001 (J34286)
SDIA1643E