torque INFINITI FX35 2005 Service Manual

TIMING CHAIN EM-81
[VQ35DE]
C
D E
F
G H
I
J
K L
M A
EM
Revision: 2005 July 2005 FX
c. Tighten mounting bolts to the specified torque in numerical order
as shown in the figure.

There are two type of mounting bolts. Refer to the following
for locating bolts.
d. After all bolts are tightened, retighten them to the specified torque in numerical order shown in the figure.
CAUTION:
Be sure to wipe off any excessive liquid gasket leaking on surface mating with oil pan (upper).
e. After installing front timing chain case, check the surface height difference between the following parts on the oil pan (upper)
mounting surface.

If not within the standard, repeat the installation procedure.
14. Install right and left intake valve timing control covers as follows:
a. Install new seal rings in shaft grooves.
b. Apply a continuous bead of liquid gasket with the tube presser [SST: WS39930000 ( — )] to intake valve timing control cov-
ers as shown in the figure.
Use Genuine RTV Silicone Sealant or equivalent. Refer to
GI-48, "
RECOMMENDED CHEMICAL PRODUCTS AND
SEALANTS" .
c. Install new collared O-rings in front timing chain case oil hole (left and right sides).
d. Being careful not to move seal ring from the installation groove, align dowel pins on front timing chain case with holes to install intake valve timing control covers. M8 bolts : 1, 2
: 28.4 N·m (2.9 kg-m, 21 ft-lb)
M6 bolts : Except the above
: 12.7 N·m (1.3 kg-m, 9 ft-lb)
Standard Front timing chain case to rear timing chain case: –0.14 to 0.14 mm (–0.006 to 0.006 in)
KBIA1303E
SEM943G
SBIA0492E
PBIC2631E

EM-86
[VQ35DE]
CAMSHAFT
Revision: 2005 July 2005 FX
7. Remove timing chain tensioner (secondary) from cylinder head.

Remove timing chain tensioner (secondary) with its stopper
pin attached.
NOTE:
Stopper pin was attached when timing chain (secondary) was
removed.
INSPECTION AFTER REMOVAL
Camshaft Runout
1. Put V-block on precise flat table, and support No. 2 and 4 jour- nals of camshaft.
CAUTION:
Do not support No. 1 journal (on the side of camshaft
sprocket) because it has a different diameter from the other
three locations.
2. Set a dial indicator vertically to No. 3 journal.
3. Turn camshaft to one direction with hands, and measure the camshaft runout on a dial indicator. (Total indicator reading)
4. If it exceeds the limit, replace camshaft.
Camshaft Cam Height
1. Measure the camshaft cam height with a micrometer.
2. If wear exceeds the limit, replace camshaft.
Camshaft Journal Oil Clearance
CAMSHAFT JOURNAL DIAMETER

Measure the outer diameter of camshaft journal with a microme-
ter.
CAMSHAFT BRACKET INNER DIAMETER

Tighten camshaft bracket bolt with the specified torque. Refer to EM-89, "INSTALLATION" for the tighten-
ing procedure.
PBIC2111E
Standard : Less than 0.02 mm (0.0008 in)
Limit : 0.05 mm (0.0020 in)PBIC0929E
Standard cam height (intake and exhaust) : 44.865 - 45.055 mm (1.7663 - 1.7738 in)
Cam wear limit : 0.2 mm (0.008 in)
EMQ0072D
Standard:No. 1 : 25.935 - 25.955 mm (1.0211 - 1.0218 in)
No. 2, 3, 4 : 23.445 - 23.465 mm (0.9230 - 0.9238 in)
PBIC0040E

EM-114
[VQ35DE]
ENGINE ASSEMBLY
Revision: 2005 July 2005 FX
1. Remove passenger-side kicking plate, dash side finisher, and glove box. Refer to EI-36, "BODY SIDE
TRIM" and IP-10, "INSTRUMENT PANEL ASSEMBLY" .
2. Disconnect engine room harness connectors at unit sides TCM, ECM and other.
3. Disengage intermediate fixing point. Pull out engine room harnesses 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.
Vehicle Underbody
1. Remove A/T fluid cooler hoses and power steering oil pump oil cooler hoses.

Install plug to avoid leakage of A/T fluid and power steering fluid.
2. Remove exhaust front tube and center muffler. Refer to EX-3, "
EXHAUST SYSTEM" .
3. Disconnect steering lower joint at power steering gear assembly side, and release steering lower shaft. Refer to PS-12, "
STEERING COLUMN" .
4. Remove tunnel stay. Refer to RSU-5, "
REAR SUSPENSION ASSEMBLY" .
5. Remove rear propeller shaft. Refer to PR-7, "
REAR PROPELLER SHAFT" .

After disconnection, plug the opening on transmission assembly side.
6. Disengage A/T control rod at control device assembly side. Then, temporarily secure it on the transmis- sion assembly, so that it does not sag. Refer to AT- 2 3 3 , "
SHIFT CONTROL SYSTEM" .
7. Remove rear plate from oil pan (upper). Then remove bolts fixing drive plate to torque converter. Refer to EM-30, "
OIL PAN AND OIL STRAINER" and AT- 2 7 0 , "TRANSMISSION ASSEMBLY" .
8. Remove transmission joint bolts which pierce at oil pan (upper) lower rear side. Refer to AT- 2 7 0 , "
TRANS-
MISSION ASSEMBLY" .
9. Remove front stabilizer. Refer to FSU-16, "
STABILIZER BAR" .
10. Separate steering outer sockets from steering knuckle. Refer to PS-19, "
POWER STEERING GEAR AND
LINKAGE" .
11. Separate transverse links from suspension member and vehicle body. Refer to FSU-14, "
TRANSVERSE
LINK" .
Removal Work
1. Use a manual lift table caddy (commercial service tool) or equiv-
alently rigid tool such as a transmission jack. Securely support
bottom of suspension member and the transmission assembly.
CAUTION:
Put a piece of wood or something similar as the supporting
surface, secure a completely stable condition.
2. Remove rear engine mounting member bolts.
3. Remove front suspension member mounting nuts. Refer to FSU-6, "
FRONT SUSPENSION ASSEMBLY" .
SBIA0473E
PBIC0804E

ENGINE ASSEMBLY EM-119
[VQ35DE]
C
D E
F
G H
I
J
K L
M A
EM
Revision: 2005 July 2005 FX
1. Remove passenger-side kicking plate, dash side finisher, and glove box. Refer to EI-36, "BODY SIDE
TRIM" and IP-10, "INSTRUMENT PANEL ASSEMBLY" .
2. Disconnect engine room harness connectors at unit sides TCM, ECM and other.
3. Disengage intermediate fixing point. Pull out engine room harnesses 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.
Vehicle Underbody
1. Remove A/T fluid cooler hoses and power steering oil pump oil cooler hoses.

Install plug to avoid leakage of A/T fluid and power steering fluid.
2. Remove exhaust front tube and center muffler. Refer to EX-3, "
EXHAUST SYSTEM" .
3. Disconnect steering lower joint at power steering gear assembly side, and release steering lower shaft. Refer to PS-12, "
STEERING COLUMN" .
4. Remove tunnel stay. Refer to RSU-5, "
REAR SUSPENSION ASSEMBLY" .
5. Remove rear propeller shaft. Refer to PR-7, "
REAR PROPELLER SHAFT" .
6. Remove front drive shaft (both side). Refer to FAX-12, "
FRONT DRIVE SHAFT" .
7. Disconnect harness connector from transmission assembly and transfer assembly.
8. Disengage A/T control rod at control device assembly side. Then, temporarily secure it on the transmis- sion assembly, so that it does not sag. Refer to AT- 2 3 3 , "
SHIFT CONTROL SYSTEM" .
9. Remove rear plate from oil pan (upper). Then remove bolts fixing drive plate to torque converter. Refer to EM-30, "
OIL PAN AND OIL STRAINER" and AT- 2 7 0 , "TRANSMISSION ASSEMBLY" .
10. Remove bolts fixing the transmission assembly to lower rear side of oil pan (upper). Refer to AT- 2 7 0 ,
"TRANSMISSION ASSEMBLY" .
11. Remove front stabilizer. Refer to FSU-16, "
STABILIZER BAR" .
12. Separate steering outer sockets from steering knuckle. Refer to PS-19, "
POWER STEERING GEAR AND
LINKAGE" .
13. Separate transverse links from suspension member and vehicle body. Refer to FSU-14, "
TRANSVERSE
LINK" .
Removal Work
1. Use a manual lift table caddy (commercial service tool) or equiv-
alently rigid tool such as a transmission jack. Securely support
bottom of suspension member and transmission.
CAUTION:
Put a piece of wood or something similar as the supporting
surface, secure a completely stable condition.
2. Remove rear engine mounting member bolts.
SBIA0473E
PBIC0804E

ENGINE ASSEMBLY EM-121
[VQ35DE]
C
D E
F
G H
I
J
K L
M A
EM
Revision: 2005 July 2005 FX

Do not allow engine mounting insulator to be damage and careful no engine oil gets on it.

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 component figure in EM-117, "Components
(AWD Model)" .

When installing engine mounting bracket (RH and LH) on cylin-
der block, tighten two upper bolts (shown as “A” in the figure)
first. Then tighten two lower bolts (shown as “B” in the figure).

Install engine mounting bracket (RH) (lower) as follows:
–Temporarily tighten mounting bolts (shown as “C”, “D” and “E” in
the figure).
–Tighten mounting bolts to the specified torque with following
mounting surfaces touched.
 Engine mounting bracket (RH) to engine mounting bracket (RH) (lower) (shown as “C” and “D” in figure).
 Front final drive to engine mounting bracket (RH) (lower) (shown as “E” in figure).

Make sure all engine mounting insulators are seated properly,
then tighten mounting nuts.
INSPECTION AFTER INSTALLATION
Inspection for Leaks
The following are procedures for checking fluids leak, lubricates leak and exhaust gases leak.

Before starting engine, check oil/fluid levels including engine coolant and engine oil. If less than required
quantity, fill to the specified level. Refer to MA-12, "
RECOMMENDED FLUIDS AND LUBRICANTS" .

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 fuel, exhaust gases, or any oil/fluids
including engine oil and engine coolant.

Bleed air from lines and hoses of applicable lines, such as in cooling system.

After cooling down engine, again check oil/fluid levels including engine oil and engine coolant. Refill to the
specified level, if necessary.
Summary of the inspection items:
* Transmission/transaxle/CVT fluid. power steering fluid, brake fluid, etc.
PBIC3042E
Item Before starting engine Engine running After engine stopped
Engine coolant Level Leakage Level
Engine oil Level Leakage Level
Other oils and fluid* Level Leakage Level
Fuel Leakage Leakage Leakage
Exhaust gases — Leakage —

CYLINDER BLOCK EM-129
[VQ35DE]
C
D E
F
G H
I
J
K L
M A
EM
Revision: 2005 July 2005 FX

Tighten each plug as specified below.
3. Install oil jet.

Insert oil jet dowel pin into cylinder block dowel pin hole, and
tighten mounting bolts.
4. Install main bearings and thrust bearings as follows: CAUTION:
Be careful not to drop main bearing, and to scratch the surface.
a. Remove dust, dirt, and engine oil on 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 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.
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.
5. Install crankshaft to cylinder block.

While turning crankshaft by hand, check that it turns smoothly.
6. Install main bearing cap.
Part Washer Tightening torque
A No 9.8 N·m (1.0 kg-m, 87 in-lb)
B No 19.6 N·m (2.0 kg-m, 14 ft-lb)
C No 19.6 N·m (2.0 kg-m, 14 ft-lb)
D Yes 12.3 N·m (1.3 kg-m, 9 ft-lb) E Yes 62 N·m (6.3 kg-m, 46 ft-lb) F Yes 62 N·m (6.3 kg-m, 46 ft-lb)
PBIC0898E
PBIC0807E
PBIC2489E

EM-142
[VQ35DE]
CYLINDER BLOCK
Revision: 2005 July 2005 FX
CONNECTING ROD BEND AND TORSION

Check with a 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-128, "
ASSEMBLY" for the tightening proce-
dure.

Measure the inner diameter of connecting rod big end with an
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 an inside
micrometer. Bend:
Limit : 0.15 mm (0.006 in) per 100 mm (3.94 in) length
Torsion: 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

EM-144
[VQ35DE]
CYLINDER BLOCK
Revision: 2005 July 2005 FX

Measure the distortion on the cylinder block upper face at some
different points in six directions with a straightedge and a feeler
gauge.

If it exceeds the limit, replace cylinder block.
MAIN BEARING HOUSING INNER DIAMETER

Install main bearing caps and main bearing beam without install-
ing main bearings, and tighten main bearing cap bolts to the
specified torque. Refer to EM-128, "
ASSEMBLY" for the tighten-
ing procedure.

Measure the inner diameter of main bearing housing with a bore
gauge.

If out of the standard, replace cylinder block and main bearing
caps as assembly.
NOTE:
Cylinder block cannot be replaced as a single part, because it is
machined together with main bearing caps.
PISTON TO CYLINDER BORE CLEARANCE
Cylinder Bore inner Diameter

Using a bore gauge, measure cylinder bore for wear, out-of-
round and taper at six different points on each cylinder. (“X” and
“Y” directions at “A”, “B” and “C”) (“Y” is in longitudinal direction
of engine)

If the measured value exceeds the limit, or if there are scratches
and/or seizure on the cylinder inner wall, hone or re-bore the
inner wall.

Oversize piston is provided. When using oversize piston, re-
bore cylinder so that the clearance of the piston-to-cylinder bore
satisfies the standard.
CAUTION:
When using oversize piston, use oversize pistons for all
cylinders with oversize piston rings. Limit : 0.1 mm (0.004 in)
SEM123C
Standard : 63.993 - 64.017 mm (2.5194 - 2.5203 in)
PBIC1643E
Standard inner diameter:
95.500 - 95.530 mm (3.7598 - 3.7610 in)
Wear limit: 0.20 mm (0.0079 in)
Out-of-round (Difference between “X” and “Y”): Limit: 0.015 mm (0.0006 in)
Taper (Difference between “A” and “C”):
Limit: 0.010 mm (0.0004 in)
Oversize (OS) : 0.2 mm (0.008 in)
PBIC0923E
SEM843E

CYLINDER BLOCK EM-145
[VQ35DE]
C
D E
F
G H
I
J
K L
M A
EM
Revision: 2005 July 2005 FX
Piston Skirt Diameter
Measure the outer diameter of piston skirt with a micrometer.
Piston-to-Cylinder Bore Clearance
Calculate by piston skirt diameter and cylinder bore inner diameter (direction “Y”, position “B”).
(Clearance) = (Cylinder bore inner diameter) – (Piston skirt diameter).

If the calculated value exceeds the limit, replace piston and piston pin assembly. Refer to EM-135, "HOW
TO SELECT PISTON" .
Re-boring Cylinder Bore
1. Cylinder bore size is determined by adding piston to cylinder bore clearance to piston skirt diameter.
2. Install main bearing caps and main bearing beam, and tighten to the specified torque. Otherwise, cylinder bores may be distorted in final assembly.
3. Cut cylinder bores. NOTE:

When any cylinder needs boring, all other cylinders must also be bored.

Do not cut too much out of cylinder bore at a time. Cut only 0.05 mm (0.0020 in) or so in diameter at a
time.
4. Hone cylinders to obtain the specified piston to cylinder bore clearance.
5. Measure finished cylinder bore for the out-of-round and taper. NOTE:
Measurement should be done after cylinder bore cools down.
CRANKSHAFT MAIN JOURNAL DIAMETER

Measure the outer diameter of crankshaft main journals with a micrometer.

If out of the standard, measure the main bearing oil clearance. Then use undersize bearing. Refer to EM-
147, "MAIN BEARING OIL CLEARANCE" .
Measure point
: Distance from the top 41.0 mm (1.614 in)
Standard : 95.480 - 95.510 mm (3.7590 - 3.7602 in)
PBIC0125E
Standard : 0.010 - 0.030 mm (0.0004 - 0.0012 in)
Limit : 0.08 mm (0.0031 in)
Re-bored size calculation: D = A + B – C
where, D: Bored diameter
A: Piston skirt diameter as measured
B: Piston to cylinder bore clearance (standard value)
C: Honing allowance 0.02 mm (0.0008 in)
Standard : 59.951 - 59.975 mm (2.3603 - 2.3612 in) dia.

EM-146
[VQ35DE]
CYLINDER BLOCK
Revision: 2005 July 2005 FX
CRANKSHAFT PIN JOURNAL DIAMETER

Measure the outer diameter of crankshaft pin journal with a
micrometer.

If out of the standard, measure the connecting rod bearing oil
clearance. Then use undersize bearing. Refer to EM-146,
"CONNECTING ROD BEARING OIL CLEARANCE" .
CRANKSHAFT OUT-OF-ROUND AND TAPER

Measure the dimensions at four different points as shown in the
figure on each main journal and pin journal with a micrometer.

Out-of-round is indicated by the difference in the dimensions
between “X” and “Y” at “A” and “B”.

Taper is indicated by the difference in the dimensions between
“A” and “B” at “X” and “Y”.

If the measured value exceeds the limit, correct or replace crankshaft.

If corrected, measure the bearing oil clearance of the corrected main journal and/or pin journal. Then
select the main bearing and/or connecting rod bearing. Refer to EM-147, "
MAIN BEARING OIL CLEAR-
ANCE" and/or EM-146, "CONNECTING ROD BEARING OIL CLEARANCE" .
CRANKSHAFT RUNOUT

Place V-block on precise flat table, and support the journals on
the both end of crankshaft.

Place a dial indicator straight up on the No. 3 journal.

While rotating crankshaft, read the movement of the pointer on a
dial indicator. (Total indicator reading)

If it exceeds the limit, replace crankshaft.
CONNECTING ROD BEARING OIL CLEARANCE
Method by Calculation

Install connecting rod bearings to connecting rod and connect-
ing rod cap, and tighten connecting rod bolts to the specified
torque. Refer to EM-128, "
ASSEMBLY" for the tightening proce-
dure.

Measure the inner diameter of connecting rod bearing with an
inside micrometer.
(Oil clearance) = (Connecting rod bearing inner diameter) – (Crank-
shaft pin journal diameter) Standard : 51.956 - 51.974 mm (2.0455 - 2.0462 in) dia.
PBIC0127E
Limit:
Out-of-round (Difference between “X” and “Y”) : 0.002 mm (0.0001 in)
Taper (Difference between “A” and “B”) : 0.002 mm (0.0001 in)
SBIA0535E
Standard : Less than 0.05 mm (0.0020 in)
Limit : 0.10 mm (0.0039 in)
SEM346D
PBIC1642E