2008 INFINITI FX35 engine stall

CYLINDER BLOCKEM-129
< SERVICE INFORMATION > [VQ35DE]
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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

CYLINDER BLOCKEM-131
< SERVICE INFORMATION > [VQ35DE]
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 Assemble so that the front mark on the piston head and the
cylinder number on connecting rod are positioned as shown in
the figure.
c. Install new snap ring to the groove of the piston front side.  Insert it fully into groove to install.
 After installing, make sure that connecting rod moves
smoothly.
10. Using a piston ring expander (commercial service tool), install piston rings.
CAUTION:
 When installing piston rings, be careful not to damagepiston.
 Be careful not to damage piston rings by expending them excessively.
 If there is stamped mark on ri ng, mount it with marked side up.
NOTE:
If there is no stamp on ring, no specific orientation is required
for installation.
 Position each ring with the gap as shown in the figure referring to the piston front mark.
 Check the piston ring side clearance. Refer to EM-138, "
Inspection After Disassembly".
11. Install connecting rod bearings to connecting rod and connecting rod bearing cap. CAUTION:
Be careful not to drop connecting r od bearing, and to scratch the surface.
 Before installing connecting rod bearings, apply engine oi l to the bearing surface (inside). Do not apply
engine oil to the back surface, but thoroughly clean it.
SEM838F
PBIC0087E
Stamped mark:
To p r i n g : —
Second ring : “R”
SEM757G
PBIC0808E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

EM-132
< SERVICE INFORMATION >[VQ35DE]
CYLINDER BLOCK
 When installing, align connecting rod bearing stopper protru-
sion with cutout of connecting rods and connecting rod bearing
caps to install.
 Ensure the oil hole on connecting rod and that on the corre- sponding bearing are aligned.
12. Install piston and connecting rod assembly to crankshaft.  Position 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 journal.
 Match the cylinder position with the cyli nder number on connecting rod to install.
 Be sure that front mark on piston crown is facing front of engine.
 Using a piston ring compressor (SST) or suitable tool, install
piston with the front mark on t he piston crown facing the front
of the engine.
CAUTION:
Be careful not to damage the cylinder wall and crankshaft
pin, resulting from an interf erence of the connecting rod big
end.
13. Install connecting rod bearing cap.  Match the stamped cylinder number marks on connecting rod
with those on connecting rod bearing cap to install.
 Be sure that front mark on connecting rod bearing cap is fac- ing front of the engine.
14. Tighten connecting rod bolt as follows:
a. Inspect the outer diameter of connecting rod bolt. Refer to EM-138, "
Inspection After Disassembly".
b. Apply engine oil to the threads and seats of connecting rod bolts.
c. Tighten connecting rod bolts.
PBIC2067E
PBIC2945E
PBIC0809E
: 19.6 N·m (2.0 kg-m, 14 ft-lb)
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

CYLINDER BLOCKEM-133
< SERVICE INFORMATION > [VQ35DE]
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d. Then tighten all connecting rod bolts 90 degrees clockwise
(Angle tightening).
CAUTION:
Always use the angle wrench [SST: KV10112100 (BT8653-
A)]. Avoid tightening b ased on visual check alone.
 After tightening connecting rod bolts, make sure that crank-
shaft rotates smoothly.
 Check the connecting rod side clearance. Refer to EM-138,
"Inspection After Disassembly".
15. Install baffle plate to main bearing beam (2WD models).
16. Install new rear oil seal retainer to cylinder block.  Apply new engine oil to both oil seal lip and dust seal lip.
 Apply a continuous bead of liquid gasket with the tube presser(commercial service tool) to rear oil seal retainer as shown in
the figure.
Use Genuine RTV Silicone Seal ant or equivalent. Refer to
GI-44, "
Recommended Chemical Product and Sealant".
CAUTION:
 Replace with a new parts.
 Attaching should be done wi thin 5 minutes after coating.
 Make sure the garter spring is in position and seal lips not
inverted.
NOTE:
Regard both rear oil seal and retainer as an assembly.
17. Install pilot converter.  With a drift [outer diameter: approx. 33 mm (1.30 in)], press-fitas far as it will go.
 Press-fit pilot converter with its chamfer facing crankshaft as shown in the figure.
SEM953E
PBIC2661E
PBIC0899E
SEM537E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

EM-134
< SERVICE INFORMATION >[VQ35DE]
CYLINDER BLOCK
18. Install knock sensor.
 Install knock sensor so that connector faces front of theengine.
 After installing knock sensor, connect harness connector, and lay it out to rear of the 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 bac k surface of knock sensor.
 Make sure that knock sensor does not interfere with other parts.
19. Note the following, assemble in the reverse order of disassembly after this step.
Drive plate When installing drive plate to crankshaft, be sure to correctly align crankshaft side guide pin and drive plate side guide pin hole.
- If these are not aligned correctly, engine runs roughly and “MIL” turns on.
 Install drive plate and reinforcement plate as shown in the fig- ure.
 Holding ring gear with the ring gear stopper [SST: KV10117700 (J44716)].
 Tighten the mounting bolts crosswise over several times.
CAUTION:
Make sure that dowel pin is installed at the rear end of
crankshaft.
How to Select Piston and BearingINFOID:0000000001325748
DESCRIPTION
*: For the service parts, the grade for fitting cannot be selected between piston pin and connecting rod. (Only “0” grade is a vailable.) 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 dimens ion 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.
PBIC0810E
PBIC0910E
Selection points Selection parts Selection items Selection methods
Between cylinder block and
crankshaft Main 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 rod Connecting rod bearingConnecting rod bearing grade
(bearing thickness) Combining service grades for
connecting rod big end diame-
ter and crankshaft pin outer di-
ameter determine connecting
rod bearing selection.
Between cylinder block and pis-
ton Piston and piston pin assembly
(Piston is available together
with piston pin as assembly.)Piston grade
(piston skirt diameter)
Piston grade = cylinder bore
grade (inner diameter of bore)
Between piston and connecting
rod* ———
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

EM-140
< SERVICE INFORMATION >[VQ35DE]
CYLINDER BLOCK
 Piston pin (piston pin hole) grade is provided only for t
he parts installed at the plant. For service parts, no
piston pin grades can be selected. (Only “0” grade is available.)
PISTON RING SIDE CLEARANCE
 Measure the side clearance of piston ring and piston ring groove with a feeler gauge.
 If the measured value exceeds the limit, replace piston ring, and measure again. If it still exceeds the limit,
replace piston also.
PISTON RING END GAP
 Make sure that the cylinder bore i nner diameter is within the speci-
fication. Refer to "Cylinder Bore inner Diameter ".
 Lubricate with new engine oil to piston and piston ring, and then insert piston ring until middle of cylinder with piston, and measure
the piston ring end gap with a feeler gauge.
 If the measured value exceeds the limit, replace piston ring, and measure again. If it still exceeds the limit,
re-bore cylinder and use oversize piston and piston rings.
CONNECTING ROD BEND AND TORSION
Standard:
Top ring : 0.045 - 0.080 mm (0.002 - 0.003 in)
2nd ring : 0.030 - 0.070 mm (0.001 - 0.003 in)
Oil ring : 0.065 - 0.135 mm (0.003 - 0.005 in)
Limit:
Top ring : 0.11 mm (0.004 in)
2nd ring : 0.10 mm (0.004 in)
SEM024AA
Standard:
Top ring : 0.23 - 0.33 mm (0.009 - 0.013 in)
2nd ring : 0.33 - 0.48 mm (0.013 - 0.019 in)
Oil ring : 0.20 - 0.50 mm (0.008 - 0.020 in)
Limit:
Top ring : 0.54 mm (0.021 in)
2nd ring : 0.80 mm (0.031 in)
Oil ring : 0.95 mm (0.037 in)
PBIC0118E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

EM-142
< SERVICE INFORMATION >[VQ35DE]
CYLINDER BLOCK
Measure the outer diameter of piston pin with a 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-134, "
How to Select Piston and Bearing".
 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 a scraper, remove gasket on the cylinder block su rface, and also remove engine oil, scale, carbon, or
other contamination.
CAUTION:
Be careful not to allow gasket flakes to en ter engine oil or engine coolant passages.
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)
PBIC0809E
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)
PBIC0812E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C