lan s INFINITI FX35 2004 Service Manual

ENGINE ASSEMBLY
EM-113
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Revision: 2004 November 2004 FX35/FX45
Separation Work
1. Install engine slingers into front of right bank cylinder head and
rear of left bank cylinder head.
2. Remove power steering oil pump from engine side. Refer to PS-
31, "POWER STEERING OIL PUMP" .
3. Remove engine mounting insulator under side nut with power
tool.
4. Lift with hoist and separate engine and transmission assembly
from suspension member.
CAUTION:

Before and during this lifting, always check if any harnesses are left connected.

Avoid damage to and oil/grease smearing or spills onto engine mounting insulator.
5. Remove alternator. Refer to SC-23, "
CHARGING SYSTEM" .
6. Remove starter motor. Refer to SC-10, "
STARTING SYSTEM" .
7. Separate engine from transmission assembly. Refer to AT- 2 6 6 , "
TRANSMISSION ASSEMBLY" .
8. Remove engine mounting insulator and bracket with power tool.
INSTALLATION
Note to the following, and install in the reverse order of removal.

For a location with a positioning pin, insert it securely into hole of
mating part.

For a part with a specified installation orientation, refer to com-
ponent figure in EM-110, "
2WD MODEL" .

When installing engine mounting bracket on cylinder block,
tighten two upper bolts (shown as A in figure) first. Then tighten
two lower bolts (shown as B in figure). (LH and RH sides)

Tighten rear member mounting bolts in numerical order shown
in figure.
INSPECTION AFTER INSTALLATION

Before starting engine, check the levels of engine coolant, engine oil and working fluid. If less than
required quantity, fill to the specified level.

Use procedure below to check for fuel leakage.
–Turn ignition switch ON (with engine stopped). With fuel pressure applied to fuel piping, check for fuel
leakage at connection points.
–Start engine. With engine speed increased, check again for fuel leakage at connection points.

Run engine to check for unusual noise and vibration.

Warm up engine thoroughly to make sure there is no leakage of engine coolant, engine oil, working fluid,
fuel and exhaust gas.Slinger bolts:
: 28.0 N·m (2.9 kg-m, 21 ft-lb)
SBIA0474E
PBIC1134E
KBIA1019E

EM-114
[VQ35DE]
ENGINE ASSEMBLY
Revision: 2004 November 2004 FX35/FX45

Bleed air from passages in pipes and tubes of applicable lines, such as in cooling system.

After cooling down engine, again check amounts of engine coolant, engine oil and working fluid. Refill to
specified level, if necessary.

Summary of the inspection items:
Item Before starting engine Engine running After engine stopped
Engine coolant Level Leakage Level
Engine oil Level Leakage Level
Working fluid Level Leakage Level
Fuel — Leakage —
Exhaust gas — Leakage —

ENGINE ASSEMBLY
EM-115
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Revision: 2004 November 2004 FX35/FX45
AWD MODEL
WARNING:

Situate vehicle on a flat and solid surface.

Place chocks at front and back of rear wheels.

For engines not equipped with engine slingers, attach proper slingers and bolts described in
PARTS CATALOG.
CAUTION:

Always be careful to work safely, avoid forceful or uninstructed operations.

Do not start working until exhaust system and engine coolant are cool enough.

If items or work required are not covered by the engine section, refer to the applicable sections.

Always use the support point specified for lifting.

Use either 2-point lift type or separate type lift as best you can. If board-on type is used for
unavoidable reasons, support at rear axle jacking point with transmission jack or similar tool
before starting work, in preparation for the backward shift of center of gravity.

For supporting points for lifting and jacking point at rear axle, refer to GI-42, "Garage Jack and
Safety Stand" .
REMOVAL
Outline
At first, remove engine and transmission assembly with suspension member downward. Then separate
engine from transmission.
1. Engine mounting bracket 2. Engine mounting bracket (Lower) 3. Engine mounting insulator FR
4. Harness bracket 5. Heat insulator 6. Caller
7. Rubber bush 8. Rear member 9. Engine mounting insulator RR
10. Dynamic damper 11. Washer 12. Dynamic damper
SBIA0475E

EM-116
[VQ35DE]
ENGINE ASSEMBLY
Revision: 2004 November 2004 FX35/FX45
Preparation
1. Release fuel pressure. Refer to EC-51, "FUEL PRESSURE RELEASE" .
2. Disconnect both battery terminals.
3. Remove engine cover (Refer to EM-19, "
INTAKE MANIFOLD COLLECTOR" ), battery cover and LH/RH
sides front tire.
4. Remove front and rear engine undercover and front cross bar with power tool.
5. Drain engine coolant from radiator drain plug. Refer to CO-11, "
Changing Engine Coolant" .
6. Remove cowl top cover RH. Refer to EI-24, "
COWL TOP" .
7. Remove air duct and air cleaner case assembly. Refer to EM-17, "
AIR CLEANER AND AIR DUCT" .
8. Remove radiator upper and lower hoses. Refer to CO-14, "
RADIATOR" .
Engine Room
1. Disconnect heater hose from vehicle-side, and fit a plug onto hose end to prevent engine coolant leak.
2. Disconnect grounding wire (between vehicle to left bank cylinder head).
3. Disconnect battery positive cable at vehicle side and temporarily fasten it on engine.
4. Disconnect engine room harness connectors shown in the fig-
ure.
5. Disconnect A/C piping from A/C compressor, and temporarily fasten it on vehicle with a rope.
6. Disconnect two body ground cables.
7. Disconnect brake booster vacuum hose.
8. Disconnect fuel feed hose and EVAP hose.
CAUTION:
Fit plugs onto disconnected hoses to prevent fuel leak.
9. Remove power steering oil pump reservoir tank and piping from vehicle, and temporarily secure them on
engine. Refer to PS-31, "
POWER STEERING OIL PUMP" .
CAUTION:
When temporarily securing, keep them upright to avoid a fluid leak.
Passenger Room Side
1. Follow procedure below to disconnect engine room harness connectors at passenger room side, and tem-
porarily secure them on engine.
a. Remove passenger-side kicking plate, dash side finisher, and
glove box. Refer to EI-37, "
BODY SIDE TRIM" and IP-10,
"INSTRUMENT PANEL ASSEMBLY" .
b. Disconnect engine room harness connectors at unit sides ECM
and other.
c. Disengage intermediate fixing point. Pull out engine room har-
nesses to engine room side, and temporarily secure them on
engine.
CAUTION:

When pulling out harnesses, take care not to damage
harnesses and connectors.

After temporarily securing, cover connectors with vinyl or similar material to protect against for-
eign material adhesion.
SBIA0472E
SBIA0473E

EM-118
[VQ35DE]
ENGINE ASSEMBLY
Revision: 2004 November 2004 FX35/FX45
5. Remove front drive shaft LH and RH sides. Refer to FAX-12, "FRONT DRIVE SHAFT" .
6. Remove alternator. Refer to SC-23, "
CHARGING SYSTEM" .
7. Remove starter motor. Refer to SC-10, "
STARTING SYSTEM" .
8. Remove front propeller shaft from front final drive assembly side. Refer to PR-4, "
FRONT PROPELLER
SHAFT" .
9. Separate engine from transmission assembly. Refer to AT- 2 6 6 , "
TRANSMISSION ASSEMBLY" .
10. Remove engine mounting insulator FR and engine mounting bracket with power tool.
11. Remove front final drive assembly from oil pan (upper). Refer to FFD-10, "
FRONT FINAL DRIVE ASSEM-
BLY" .
INSTALLATION
Note to the following, and install in the reverse order of removal.

For a location with a positioning pin, insert it securely into hole of
mating part.

For a part with a specified installation orientation, refer to com-
ponent figure in EM-115, "
AWD MODEL" .

When installing engine mounting bracket on cylinder block,
tighten two upper bolts (shown as A in figure) first. Then tighten
two lower bolts (shown as B in figure). (LH and RH sides)

Install engine mounting bracket (lower) paying attention to the
following.
–a. Temporarily tighten mounting bolts (shown as C, D and E in
figure).
–b. Tighten mounting bolts to the specified torque with following
mounting surfaces touched.
 Engine mounting bracket to engine mounting bracket (lower)
(shown as C and D in figure).
 Front final drive to engine mounting bracket (lower) (shown as E
in figure).
INSPECTION AFTER INSTALLATION

Before starting engine, check the levels of engine coolant, engine oil and working fluid. If less than
required quantity, fill to the specified level.

Use procedure below to check for fuel leakage.
–Turn ignition switch ON (with engine stopped). With fuel pressure applied to fuel piping, check for fuel
leakage at connection points.
–Start engine. With engine speed increased, check again for fuel leakage at connection points.

Run engine to check for unusual noise and vibration.

Warm up engine thoroughly to make sure there is no leakage of engine coolant, engine oil, working fluid,
fuel and exhaust gas.

Bleed air from passages in pipes and tubes of applicable lines, such as in cooling system.

After cooling down engine, again check amounts of engine coolant, engine oil and working fluid. Refill to
specified level, if necessary.

Summary of the inspection items:
SBIA0477E
SBIA0478E
Item Before starting engine Engine running After engine stopped
Engine coolant Level Leakage Level
Engine oil Level Leakage Level
Working fluid Level Leakage Level

CYLINDER BLOCK
EM-123
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Revision: 2004 November 2004 FX35/FX45
7. Drain engine coolant by removing water drain plugs from cylin-
der block both sides at “B” and “C” and cylinder block front side
at “A” as shown in the figure.
8. Remove cylinder head. Refer to EM-98, "
CYLINDER HEAD" .
9. Remove knock sensor.
CAUTION:
Carefully handle sensor avoiding shocks.
10. Remove drive plate with power tool. Fix crankshaft with a ring gear stopper [SST: KV1011770 (J-44716)],
and remove mounting bolts.

Loosen mounting bolts in diagonal order.
CAUTION:

Do not disassemble drive plate.

Never 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.
11. Remove pilot converter using pilot bushing puller (SST) or suit-
able tool as necessary.
PBIC2610E
SEM760G
SEM005G

EM-126
[VQ35DE]
CYLINDER BLOCK
Revision: 2004 November 2004 FX35/FX45
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 water drain plug to cylinder block as shown in the
figure.

Apply liquid gasket to the thread of water drain plugs.
Use Genuine RTV Silicone Sealant or equivalent. Refer to
GI-48, "
RECOMMENDED CHEMICAL PRODUCTS AND
SEALANTS" .
3. Install each plug to cylinder block as shown in the figure if
removed.

Apply liquid gasket to the thread of plugs and install plugs with
new gaskets.
Use Genuine High Strength Thread Locking Sealant or
equivalent. Refer to GI-48, "
RECOMMENDED CHEMICAL
PRODUCTS AND SEALANTS" .
Use Genuine RTV Silicone Sealant or equivalent. Refer to GI-48, "
RECOMMENDED CHEMICAL
PRODUCTS AND SEALANTS" .
4. Install oil jet.

Insert oil jet dowel pin into cylinder block dowel pin hole, and
tighten mounting bolts.Water drain plug (front) “A”:
: 9.8 N·m (1.0 kg-m, 87 in-lb)
Water drain plug (RH) “B”:
: 19.6 N·m (2.0 kg-m, 14 ft-lb)
Water drain plug (LH) “C”:
: 19.6 N·m (2.0 kg-m, 14 ft-lb)
Plug (RH) “D”:
: 12.3 N·m (1.3 kg-m, 9 ft-lb)
Plug (rear) “E”:
: 62 N·m (6.3 kg-m, 46 ft-lb)
Plug (LH) “F”:
: 62 N·m (6.3 kg-m, 46 ft-lb)
PBIC2610E
PBIC0898E

EM-130
[VQ35DE]
CYLINDER BLOCK
Revision: 2004 November 2004 FX35/FX45
19. Install rear oil seal retainer to cylinder block.

Apply new engine oil to the oil and dust seal lips.

Apply liquid gasket to rear oil seal retainer using tube presser
[SST: WS39930000 ( - )] as shown in the figure.
Use Genuine RTV Silicone Sealant or equivalent. Refer to
GI-48, "
RECOMMENDED CHEMICAL PRODUCTS AND
SEALANTS" .
CAUTION:
Replace with the new parts.
NOTE:
Rear oil seal with rear oil seal retainer.
20. Install pilot converter using suitable tool.

Outer diameter of drift.

Press-fit pilot converter with its chamfer facing crankshaft as
shown in the figure.
21. Install drive plate.

Install drive plate and reinforcement plate as shown in figure.

Secure crankshaft using a ring gear stopper [SST:
KV1011770 (J44716)].

Tighten the installation bolts crosswise over several times.
PBIC0922E
Pilot converter : Approx. 33 mm (1.30 in)
PBIC0899E
SEM537E
PBIC0910E

CYLINDER BLOCK
EM-131
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Revision: 2004 November 2004 FX35/FX45
22. Install knock sensor.

Install knock sensor so that connector faces front of engine.

After installing knock sensor, connect harness connector, and
lay it out to rear of engine.
CAUTION:

Do not tighten mounting bolts while holding connector.

If any impact by dropping is applied to knock sensor,
replace it with 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.
23. Install followings in reverse order of removal.
How to Select Piston and Bearing ABS00FPI
DESCRIPTION
*For the service parts, the grade for fitting cannot be selected between a piston pin and a 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 cylinder bore grade (“1”, “2”, or “3”) on rear side of cylinder
block, and select a 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.)
PBIC0810E
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 inner
diameter and crankshaft pin
outer diameter determine con-
necting 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)
*Between piston and connect-
ing rod———
PBIC0811E

EM-132
[VQ35DE]
CYLINDER BLOCK
Revision: 2004 November 2004 FX35/FX45
When Cylinder Block Is Reused
1. Measure the cylinder block 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”.
3. Select piston of the same grade.
Piston Selection Table
Unit: mm (in)
NOTE:

Piston is available together with piston pin as an assembly.

Piston pin (piston pin bore) 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 number (“0”, “1”, or “2”) stamped in front
of crankshaft, and select connecting rod bearing of same grade
number.
NOTE:
There is no grading for connecting rod big end inner diameter.
When Crankshaft and Connecting Rod Are Reused
1. Measure dimensions of the big end inner diameter of connecting rod and outer diameter of crankshaft pin
individually.
2. Confirm the big end inner diameter of connecting rod is within the standard value.
3. Apply the measured dimension to the “Connecting Rod Bearing Selection Table”.
4. Determine the grade of crankshaft pin diameter grade by comparing the measurement with the values
under the crankshaft pin outer diameter of the “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)
PBIC0812E
Grade 1 2 (or no mark) 3
Inner diameter of cylinder bore95.500 / 95.510
(3.7598 / 3.7602)95.510 / 95.520
(3.7602 / 3.7606)95.520 / 95.530
(3.7606 / 3.7610)
Outer diameter of piston95.480 / 95.490
(3.7590 / 3.7594)95.490 / 95.500
(3.7594 / 3.7598)95.500 / 95.510
(3.7598 / 3.7602)
SEM452G
Connecting rod big end inner diameter 55.000 - 55.013 (2.1654 - 2.1659)
Crankshaft pin outer 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 Black