2008 INFINITI FX35 torque

EM-246
< SERVICE INFORMATION >[VK45DE]
CYLINDER BLOCK
 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 crankshaftarm (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 bearing
surface (inside). Do not apply engine oil to the back surface,
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: appr ox. 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.
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
PBIC2369E
EMP0569D
SEM537E
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CYLINDER BLOCKEM-259
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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-242, "
Disassembly and Assembly" for the
tightening procedure.
 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 Bush ing Inner Diameter
Measure the inner diameter of connecting rod bushing with inside
micrometer.
Piston Pin Outer Diameter
Measure the outer diameter of piston pin with micrometer.
Connecting Rod Bushing Oil Clearance
(Connecting rod bushing oil clearance) = (Connecting rod bus hing inner diameter) – (Piston pin outer diame-
ter)
 If the calculated value exceeds the limit, replac e connecting rod assembly and/or piston and piston pin
assembly.
 If replacing piston and piston pin assembly, refer to EM-250, "
How to Select Piston and Bearing".
Standard : 55.000 - 55.013 mm (2.1654 - 2.1659 in)
PBIC1641E
Standard : 22.000 - 22.012 mm (0.8661 - 0.8666 in)
PBIC0120E
Standard : 21.989 - 22.001 mm (0.8657 - 0.8662 in)
PBIC0117E
Standard : 0.005 - 0.017 mm (0.0002 - 0.0007 in)
Limit : 0.030 mm (0.0012 in)
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EM-260
< SERVICE INFORMATION >[VK45DE]
CYLINDER BLOCK
 If replacing connecting rod assembly, refer to "CONNECTING
ROD BEARING OIL CLEARANCE" to select the connecting rod
bearing.
Factory installed parts grading: Service parts apply only to grade “0”.
Unit: mm (in)
*: After installing in connecting rod
CYLINDER BLOCK DISTORTION
 Using scraper, remove gasket on the cylinder block surface, and also remove engine oil, scale, carbon, orother contamination.
CAUTION:
Be careful not to allow gasket flakes to en ter engine oil or engine coolant passages.
 Measure the distortion on the cylinder block upper face at some different points in six directions with straightedge and feeler gauge.
 If it exceeds the limit, replace cylinder block.
MAIN BEARING HOUSING INNER DIAMETER
 Install main bearing caps and main bearing without installing main bearings, and tighten main bearing cap bolts to the specified
torque. Refer to EM-242, "
Disassembly and Assembly" for the
tightening procedure.
 Measure the inner diameter of main bearing housing with 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
PBIC2164E
Grade 0 1
Connecting rod bushing
inner diameter * 22.000 - 22.006
(0.8661 - 0.8664) 22.006 - 22.012
(0.8664 - 0.8666)
Piston pin hole diameter 21.993 - 21.999
(0.8659 - 0.8661) 21.999 - 22.005
(0.8661 - 0.8663)
Piston pin outer diameter 21.989 - 21.995
(0.8657 - 0.8659) 21.995 - 22. 001
(0.8659 - 0.8662)
PBIC2372E
Limit : 0.1 mm (0.004 in)
SEM123C
Standard : 68.944 - 68.968 mm (2.7143 - 2.7153 in)
PBIC1643E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

EM-262
< SERVICE INFORMATION >[VK45DE]
CYLINDER BLOCK
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, and tight en 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 micrometer.
 If out of the standard, measure t he main bearing oil clearance. Then use undersize bearing. Refer to "MAIN
BEARING OIL CLEARANCE".
CRANKSHAFT PIN JOURNAL DIAMETER
 Measure the outer diameter of crankshaft pin journal with micrometer.
 If out of the standard, measure the connecting rod bearing oil clearance. Then use undersize bearing. Refer to "CONNECTING
ROD BEARING OIL CLEARANCE".
CRANKSHAFT OUT-OF-ROUND AND TAPER
 Measure the dimensions at four different points as shown in thefigure on each main journal and pin journal with 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 lim it, correct or replace crankshaft.
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 : 63.940 - 63.964 mm (2.5173 - 2.5183 in) dia.
Standard : 51.956 - 51.974 mm (2.0455 - 2.0462 in) dia.
PBIC0127E
Limit: Out-of-round (Difference between “X” and “Y”) : 0.015 mm (0.0006 in)
Taper (Difference between “A” and “B”) : 0.010 mm (0.0004 in)
PBIC1685E
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CYLINDER BLOCKEM-263
< SERVICE INFORMATION > [VK45DE]
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 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 "MAIN BEARING OIL CLEARANCE" and/or
"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 dial indicator straight up on the No. 3 journal.
 While rotating crankshaft, read the movement of the pointer on 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 cap, and tighten connecting rod bolts to the specified torque. Refer to EM-
242, "Disassembly and Assembly" for the tightening procedure.
 Measure the inner diameter of connecting rod bearing with inside micrometer.
(Bearing oil clearance) = (Connecting rod bearing inner diameter) –
(Crankshaft pin journal diameter)
 If the calculated value exceeds the limit, select proper connecting rod bearing according to connecting rod
big end diameter and crankshaft pin journal diameter to obtain the specified bearing oil clearance. Refer to
EM-250, "
How to Select Piston and Bearing".
Method of Using Plastigage
 Remove oil and dust on crankshaft pin journal and the surfaces of each bearing completely.
 Cut plastigage slightly shorter than the bearing width, and place it in crankshaft axial direction, avoiding oil
holes.
 Install connecting rod bearings to connecting rod and cap, and tighten connecting rod bolts to the specified
torque. Refer to EM-242, "
Disassembly and Assembly" for the tightening procedure.
CAUTION:
Do not rotate crankshaft.
 Remove connecting rod bearing cap and bearing, and using scale
on plastigage bag, measure the plastigage width.
NOTE:
The procedure when the measured value exceeds the limit is
same as that described in the “Method by Calculation”.
MAIN BEARING OIL CLEARANCE
Method by Calculation
Limit : 0.10 mm (0.0039 in)
PBIC2378E
Standard : 0.020 - 0.045 mm (0.0008 - 0.0018 in) (actu-
al clearance)
Limit : 0.055 mm (0.0022 in)
PBIC1642E
PBIC1149E
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EM-264
< SERVICE INFORMATION >[VK45DE]
CYLINDER BLOCK
 Install main bearings to cylinder block and main bearing caps, and
tighten main bearing cap bolts with main bearing to the specified
torque. Refer to EM-242, "
Disassembly and Assembly" for the
tightening procedure.
 Measure the inner diameter of main bearing with bore gauge.
(Bearing clearance) = (Main bearing inner diamet er) – (Crankshaft main journal diameter)
 If the calculated value exceeds the limit, select proper main bearing according to main bearing inner diame-
ter and crankshaft main journal diameter to obtain the specified bearing oil clearance. Refer to EM-250,
"How to Select Piston and Bearing".
Method of Using Plastigage
 Remove oil and dust on crankshaft main journal and the surfaces of each bearing completely.
 Cut plastigage slightly shorter than the bearing width, and place it in crankshaft axial direction, avoiding oil
holes.
 Install main bearings to cylinder block and main bearing caps, and tighten main bearing bolts with main bear- ing to the specified torque. Refer to EM-242, "
Disassembly and Assembly" for the tightening procedure.
CAUTION:
Do not rotate crankshaft.
 Remove main bearing caps and bearings, and using scale on plas- tigage bag, measure the plastigage width.
NOTE:
The procedure when the measured value exceeds the limit is
same as that described in the “Method by Calculation”.
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 bearing
must protrude. Refer to EM-242, "
Disassembly and Assembly" for
the tightening procedure.
 If the standard is not met, replace main bearings.
CRUSH HEIGHT OF CONNECTING ROD BEARING
PBIC1644E
Standard No. 1 and 5 journal : 0.001 - 0.011 mm (0.00004 - 0.0004 in)
No. 2, 3 and 4 journal : 0.007 - 0.017 mm (0.0003 - 0.0007 in)
Limit No. 1 and 5 journal : 0.021 mm (0.0008 in)
No. 2, 3 and 4 journal : 0.027 mm (0.0011 in)
PBIC1149E
Standard : There must be crush height.
SEM502G
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CYLINDER BLOCKEM-265
< SERVICE INFORMATION > [VK45DE]
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 When connecting rod bearing cap is removed after being tightened
to the specified torque with connecting rod bearings installed, the
tip end of bearing must protrude. Refer to EM-242, "
Disassembly
and 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 becom-
ing magnetized.
 If anything is found, replace drive plate. Standard : There must be crush height.
PBIC1646E
PBIC2367E
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EXHAUST SYSTEMEX-5
< SERVICE INFORMATION >
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 Tighten main muffler mounting bracket bolts in numerical order as
shown in the figure.
CAUTION:
 Always replace exhaust tube gasket s with new ones when reassembling.
 If heat insulator is badly deformed, repair or repl ace it. If deposits such as mud pile up on the heat
insulator, remove them.
 When installing heat insulator avoid large gaps or interference between heat insulator and each
exhaust pipe.
 Remove deposits from the sealing surface of each connection. Connect them securely to avoid
gases leakage.
 Temporarily tighten mounting nuts on the exhaust manifold side and mounting bolts on the vehicle
side. Check each part for unusual interference, an d then tighten them to the specified torque.
 When installing each mounting rubber, avoid twisting or unusual extension in up/down and right/left
directions.
INSPECTION AFTER INSTALLATION
 Make sure clearance between tail tube and bumper is even.
 With engine running, check exhaust tube joints for gas leakage and unusual noises.
 Check to ensure that mounting brackets and mount ing rubbers are installed properly and free from undue
stress. Improper installation could resu lt in excessive noise and vibration.
PBIC1049E
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