2008 INFINITI FX35 bearing

EM-86
< SERVICE INFORMATION >[VQ35DE]
CAMSHAFT
CAMSHAFT BRACKET INNER DIAMETER
 Tighten camshaft bracket bolt with the specified tor que. Refer to "INSTALLATION" for the tightening proce-
dure.
 Measure inner diameter “A” of camshaft bracket with a bore gauge.
CAMSHAFT JOURNA L OIL CLEARANCE (Oil clearance) = (Camshaft bracket inner diameter) – (Camshaft journal diameter).
 If the calculated value exceeds the limit, replace either or both camshaft and cylinder head.
NOTE:
Camshaft brackets cannot be replaced as single part s, because there are machined together with cylinder
head. Replace whole cylinder head assembly.
Camshaft End Play
 Install a dial indicator in thrust direction on front end of camshaft. Measure the end play of a dial indicator when camshaft is moved
forward/backward (in direction to axis).
 Measure the following parts if out of the limit.
- Dimension “A” for camshaft No. 1 journal
- Dimension “B” for cylinder head No. 1 journal bearing
 Refer to the standards above, and then replace camshaft and/or cylinder head.
Camshaft Sprocket Runout
1. Put V-block on precise flat table, and support No. 2 and 4 journals of camshaft. CAUTION:
Do not support No. 1 journal (on the side of cam shaft sprocket) because it has a different diameter
from the other three locations. Standard:
No. 1 : 26.000 - 26.021 mm (1.0236 - 1.0244 in)
No. 2, 3, 4 : 23.500 - 23.521 mm (0.9252 - 0.9260 in)
PBIC1645E
Standard:No. 1 : 0.045 - 0.086 mm (0.0018 - 0.0034 in)
No. 2, 3, 4 : 0.035 - 0.076 mm (0.0014 - 0.0030 in)
Limit : 0.15 mm (0.0059 in)
Standard : 0.115 - 0.188 mm (0.0045 - 0.0074 in)
Limit : 0.24 mm (0.0094 in)
SEM864E
Standard : 27.500 - 27.548 mm (1.0827 - 1.0846 in)
Standard : 27.360 - 27.385 mm (1.0772 - 1.0781 in)
KBIA2404J
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

EM-122
< SERVICE INFORMATION >[VQ35DE]
CYLINDER BLOCK
CYLINDER BLOCK
ComponentINFOID:0000000001325746
1. Reinforcement plate 2. Drive plate 3. Rear oil seal retainer
4. Cover 5. Gasket 6. Cylinder block
7. Knock sensor 8. Oil jet 9. Thrust bearing
PBIC4690E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

CYLINDER BLOCKEM-123
< SERVICE INFORMATION > [VQ35DE]
C
D
E
F
G H
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M A
EM
NP
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 Refer to
GI-8, "Component" for symbols in the figure.
Disassembly and AssemblyINFOID:0000000001325747
DISASSEMBLY
1. Remove the engine assembly from the vehicle, and separate transmission assembly, transfer assembly
(AWD models), front final drive assembly (AWD models) and front suspension member from the engine.
Refer to EM-112, "
Component (2WD Models)".
2. Remove exhaust manifold. Refer to EM-26, "
Component".
3. Install engine sub-attachment with engine stand shaft (SST) to right side of cylinder block.
 Use a spacer to the engine rear side.
10. Pilot converter 11. Main bearing 12. Crankshaft
13. Crankshaft key 14. Main bearing cap 15. Main bearing cap bolt
16. Main bearing beam 17. Baffle plate (2WD models) 18. Connecting rod bolt
19. Connecting rod bearing cap 20. Connecting rod bearing 21. Connecting rod
22. Snap ring 23. Piston pin 24. Piston
25. Oil ring 26. Second ring 27. Top ring
A. Refer to EM-123
B. Crankshaft side C. Chamfered
1. Cylinder block 2. Gasket 3. Water connector
4. Gasket 5. Cylinder block heater 6. Connector protector cap
PBIC2614E
SBIA0503E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

EM-126
< SERVICE INFORMATION >[VQ35DE]
CYLINDER BLOCK
10. Remove pilot converter using the pilot bushing puller (SST) as
necessary.
11. Remove rear oil seal retainer.  Remove by inserting a screwdriver between main bearing cap and rear oil seal retainer.
CAUTION:
If rear oil seal retainer is removed, replace it with new one.
NOTE:
Regard both rear oil seal and retainer as an assembly.
12. Remove baffle plate from main bearing beam (2WD models).
13. Remove piston and connecting rod assembly with the following procedure:  Before removing piston and connecting rod assembly, check the connecting rod side clearance. Refer to
EM-138, "
Inspection After Disassembly".
CAUTION:
Be careful not to drop connecting ro d bearing, and to scratch the surface.
a. Position crankshaft pin corresponding to connecting rod to be removed onto the bottom dead center.
b. Remove connecting rod bearing cap.
c. Using a hammer handle or similar tool, push piston and connect- ing rod assembly out to the cylinder head side.
CAUTION:
Be careful not to damage the cylinder wall and crankshaft
pin, resulting from an interf erence of the connecting rod big
end.
14. Remove connecting rod bearings from connecting rod and connecting rod bearing cap. CAUTION:
 Be careful not to drop connecting ro d bearing, and to scratch the surface.
 Identify installation positions, and store them without mixing them up.
15. Remove piston rings form piston.  Before removing piston rings, check the piston ring side clearance. Refer to EM-138, "
Inspection After
Disassembly".
 Use a piston ring expander (commercial service tool).
CAUTION:
 When removing piston rings, be careful not to damage piston.
 Be careful not to damage piston rings by expanding them
excessively.
16. Remove piston from connecting rod as follows:
SEM005G
EMQ0191D
PBIC0087E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

CYLINDER BLOCKEM-127
< SERVICE INFORMATION > [VQ35DE]
C
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a. Using a snap ring pliers, remove snap rings.
b. Heat piston to 60 to 70
°C (140 to 158 °F) with an industrial use
drier or equivalent.
c. Push out piston pin with stick of outer diameter approximately 20 mm (0.79 in).
17. Remove main bearing cap bolts. NOTE:
Use TORX socket (size E14).
 Before loosening main bearing cap bolts, measure the crankshaft end play. Refer to EM-138, "
Inspec-
tion After Disassembly".
 Loosen main bearing cap bolts in the reverse order shown in
the figure in several different steps.
PBIC1638E
PBIC1639E
PBIC0262E
PBIC1800E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

EM-128
< SERVICE INFORMATION >[VQ35DE]
CYLINDER BLOCK
18. Remove main bearing beam.
19. Remove main bearing caps.
CAUTION:
Be careful not to drop main b earing, and to scratch the sur-
face.
 Using main bearing cap bolts, remove main bearing cap while shaking it back-and-forth.
20. Remove crankshaft.
21. Remove main bearings and thrust bearings from cylinder block and main bearing caps. CAUTION:
 Be careful not to drop main b earing, and to scratch the surface.
 Identify installation positions, and store them without mixing them up.
22. Remove oil jet.
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 cylinder block as shown in the figure.  Apply sealant to the thread of water drain plugs “A”, “B” and
“C”.
Use Genuine RTV Silicone Seal ant or equivalent. Refer to
GI-44, "
Recommended Chemical Product and Sealant".
 Apply sealant to the thread of plugs “D” and “E”. Use Genuine High Strength Thread Locking Sealant or
equivalent. Refer to GI-44, "
Recommended Chemical
Product and Sealant".
 Apply sealant to the thread of plug “F”. Use Anaerobic Liquid Gasket or equivalent. Refer to GI-
44, "Recommended Chemical Product and Sealant".
NOTE:
For Canada, “F” in the figure is not plug but block heater. Refer
to EM-122, "
Component".
 Replace washers with new one.
PBIC0881E
EMQ0195D
PBIC2610E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

CYLINDER BLOCKEM-129
< SERVICE INFORMATION > [VQ35DE]
C
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F
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 Tighten each plug as specified below.
3. Install oil jet.  Insert oil jet dowel pin into cylinder block dowel pin hole, andtighten mounting bolts.
4. Install main bearings and thrust bearings as follows: CAUTION:
Be careful not to drop main b earing, and to scratch the surface.
a. Remove dust, dirt, and engine oil on bearing mating su rfaces 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 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.
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 62.0 N·m (6.3 kg-m, 46 ft-lb)F Yes 62.0 N·m (6.3 kg-m, 46 ft-lb)
PBIC0898E
PBIC0807E
PBIC2489E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

EM-130
< SERVICE INFORMATION >[VQ35DE]
CYLINDER BLOCK
 Main bearing caps are identified by identification mark cast on
them. For installation, face front mark to front side.
NOTE:
Main bearing cap cannot be replaced as a single part, because it
is machined together with cylinder block.
7. Install main bearing beam.  Install main bearing beam with front mark facing downward (oil pan side).
 Install main bearing beam with front mark facing front of the
engine.
8. Install main bearing cap bolts in numerical order as shown in the figure as follows:
a. Inspect the outer diameter of main bearing cap bolt. Refer to EM-138, "
Inspection After Disassembly".
b. Apply new engine oil to threads and seat surfaces of main bear- ing cap bolts.
c. Tighten main bearing cap bolts in several different steps.
d. Turn all main bearing cap bolts 90 degrees clockwise (Angle tightening).
CAUTION:
Use the angle wrench [SST: KV10112100 (BT8653-A)] to
check tightening angle. Do not make judgment by visual
inspection.
 After installing main bearing cap bolts, make sure that crank-
shaft can be rotated smoothly by hand.
 Check the crankshaft end play. Refer to EM-138, "
Inspection
After Disassembly".
9. Install piston to connecting rod as follows:
a. Using a snap ring pliers, install new snap ring to the groove of piston rear side.  Insert it fully into groove to install.
b. Install piston to connecting rod.  Using an 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.
SEM456G
PBIC0881E
: 35.3 N·m (3.6 kg-m, 26 ft-lb)
PBIC1800E
PBIC0921E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C