Oil NISSAN TEANA 2003 Service Manual

CYLINDER BLOCK
EM-229
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DISASSEMBLY
NOTE:
Show VQ35DE (with main bearing beam, connecting rod bearing cap is tighten by bolts) as an example unless
the figure includes specification.
1. Remove engine assembly from vehicle, and separate front suspension member and transaxle from
engine. Refer to EM-223, "
ENGINE ASSEMBLY" .
2. Remove exhaust manifolds (right and left banks). Refer to EM-140, "
EXHAUST MANIFOLD AND THREE
WAY CATALYST" .
3. Install engine sub-attachment with engine stand shaft (SST) to
right side of cylinder block.

Use spacer to engine front side.
4. Lift engine, and mount it onto engine stand (SST).
1. Reinforcement plate 2. Drive plate 3. Rear oil seal retainer
4. Knock sensor 5. Cylinder block 6. Thrust bearing (upper)
7. Main bearing (upper) 8. Crankshaft 9. Key
10. Thrust bearing (lower) 11. Main bearing (lower) 12. Main bearing cap
13. Main bearing cap bolt 14. Main bearing beam 15. Baffle plate
16. Connecting rod nut 17. Connecting rod bolt 18. Connecting rod bearing cap
19. Connecting rod bearing 20. Connecting rod 21. Snap ring
22. Piston pin 23. Piston 24. Oil ring
25. Second ring 26. Top ring 27. Pilot converter
28. Oil jet
PBIC2486E
PBIC2618E

EM-230
[VQ]
CYLINDER BLOCK


A widely use engine stand can be used.
CAUTION:
Use engine stand that has a load capacity [approximately
220 kg (441 lb) or more] large enough for supporting the
engine weight.
NOTE:
This example is engine stand for holding at transaxle mount-
ing side with drive plate removed.
5. Drain engine oil. Refer to LU-21, "
Changing Engine Oil" .
6. Drain engine coolant by removing water drain plugs from cylin-
der block both sides at “A” and “D” and cylinder block front side
at “B” as shown in the figure.
NOTE:
Water drain plug at the right bank side for VQ35DE is also used
as a connector of water pipe for oil cooler. Refer to LU-23, "
OIL
COOLER (VQ35DE)" .
7. Remove drive plate. Fix crankshaft pulley with pulley holder [SST: KV10109300], and remove mounting
bolts.

Loosen mounting bolts in diagonal order.
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
becoming magnetized.
8. Remove cylinder head. Refer to EM-210, "
CYLINDER HEAD" .
9. Remove knock sensor.
CAUTION:
Carefully handle sensor avoiding shocks.
PBIC0085E
PBIC2487E
SEM760G

CYLINDER BLOCK
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10. Remove pilot converter using pilot bushing puller (SST) or suit-
able tool as necessary.
11. Remove rear oil seal retainer.

Remove by inserting 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 piston and connecting rod assembly as follows:

Before removing piston and connecting rod assembly, check the connecting rod side clearance. Refer
to EM-245, "
CONNECTING ROD SIDE CLEARANCE" .
a. Position crankshaft pin corresponding to connecting rod to be removed onto the bottom dead center.
b. Remove connecting rod bearing cap.
c. Using 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 interference of the connecting rod big
end.
13. Remove connecting rod bearings from connecting rod and connecting rod bearing cap.
CAUTION:
Identify installation position, and store them without mixing them up.
14. Remove piston rings form piston.

Before removing piston rings, check the piston ring side clearance. Refer to EM-246, "PISTON RING
SIDE CLEARANCE" .

Use 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.
15. Remove piston from connecting rod as follows:
PBIC1618E
EMQ0191D
PBIC0087E

CYLINDER BLOCK
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17. Remove main bearing beam. (VQ35DE)
18. Remove main bearing caps.

Using main bearing cap bolts, remove main bearing cap while
shaking it back-and-forth.
19. Remove crankshaft.
20. Remove main bearings and thrust bearings from cylinder block and main bearing caps.
CAUTION:
Identify installation positions, and store them without mixing them up.
21. Remove oil jet. (VQ35DE)
ASSEMBLY
NOTE:
Show VQ35DE (with main bearing beam, connecting rod bearing cap is tighten by bolts) as an example unless
the figure includes specification.
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.
PBIC2490E
EMQ0195D

EM-234
[VQ]
CYLINDER BLOCK

2. Install each plug to cylinder block as shown in the figure.
NOTE:
Water drain plug at the right bank side for VQ35DE is also used
as a connector of water pipe for oil cooler. Refer to LU-23, "
OIL
COOLER (VQ35DE)" .

Apply sealant to the thread of water drain plug “A”.
Use Anaerobic Liquid Gasket or equivalent.

Apply sealant to the thread of water drain plugs “B” and “D”.
Use Genuine Liquid Gasket or equivalent.

Apply sealant to the thread of plug “C”.
Use Thread Locking Sealant or equivalent.

Replace washers with new one.

Tighten each plug as specified below.
3. Install oil jet. (VQ35DE)

Insert oil jet dowel pin into cylinder block dowel pin hole, and
tighten mounting bolts.
4. Install main bearings and thrust bearings as follows:
a. Remove dust, dirt, and engine oil on bearing mating surfaces of cylinder block and main bearing caps.
PBIC2487E
Part WasherTightening torque
VQ23DE VQ35DE
A Yes 62.0 N·m (6.3 kg-m, 46 ft-lb)
B No 9.8 N·m (1.0 kg-m, 87 in-lb)
C Yes 62.0 N·m (6.3 kg-m, 46 ft-lb)
D No 19.6 N·m (2.0 kg-m, 14 ft-lb) 39.2 N·m (4.0 kg-m, 29 ft-lb)
PBIC2488E

CYLINDER BLOCK
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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 caps.

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. (VQ35DE)

Install main bearing beam with front mark facing downward (oil pan side).

Install main bearing beam with front mark facing front of
engine.
8. Inspect outer diameter of main bearing cap bolts. Refer to EM-253, "
MAIN BEARING CAP BOLT OUTER
DIAMETER" .
PBIC0807E
PBIC2489E
SEM456G
PBIC2490E

EM-236
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CYLINDER BLOCK

9. Tighten main bearing cap bolts in numerical order as shown in
the figure as follows:
a. Apply new engine oil to threads and seat surfaces of main bear-
ing cap bolts.
b. Tighten main bearing cap bolts in several different steps.
c. Turn all main bearing cap bolts 90 degrees clockwise. (Angle
tightening)
CAUTION:
Use angle wrench [SST: KV10112100] 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 crankshaft end play. Refer to EM-245, "CRANKSHAFT
END PLAY" .
10. Inspect outer diameter of connecting rod bolts. Refer to EM-253, "
CONNECTING ROD BOLT OUTER
DIAMETER" .
11. Install piston to connecting rod as follows:
a. Using 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 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.

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.
12. Using piston ring expander (commercial service tool), install pis-
ton rings.
CAUTION:

When installing piston rings, be careful not to damage
piston.

Be careful not to damage piston rings by expending them
excessively. : 35.3 N·m (3.6 kg-m, 26 ft-lb)
PBIC1800E
PBIC0921E
SEM838F
PBIC0087E

CYLINDER BLOCK
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Position each ring with the gap as shown in the figure refer-
ring to the piston front mark.

Install top ring and second ring with the stamped surface fac-
ing upward. (VQ23DE)

Install second ring with the stamped surface facing upward.
(VQ35DE)
NOTE:
If there is no stamped mark on piston ring, no specific orientation is required for installation.
13. Install connecting rod bearings to connecting rod and connecting rod bearing cap.

Before installing connecting rod 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 connecting rod bearing stopper protru-
sion with cutout of connecting rod and connecting rod bearing
cap to install.

Ensure the oil hole on connecting rod and that on the corre-
sponding bearing are aligned.
14. 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 cylinder number on connecting rod to install.

Be sure that front mark on piston head is facing front of engine.

Using piston ring compressor (SST) or suitable tool, install
piston with the front mark on the piston head facing the front
of engine.
CAUTION:
Be careful not to damage the cylinder wall and crankshaft
pin, resulting from an interference of the connecting rod big
end.
15. Install connecting rod bearing caps.Stamped mark:
To p r i n g : R
Second ring : R2
Stamped mark:
Second ring : R
PBIC2195E
PBIC2067E
PBIC1619E

EM-238
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CYLINDER BLOCK


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 engine.
16. Tighten connecting rod nuts (VQ23DE) or connecting rod bolts (VQ35DE) as follows:
a. Apply engine oil to the threads and seats of connecting rod nuts or bolts.
b. Tighten connecting rod nuts or bolts.
c. Then tighten all connecting rod nuts or bolts 90 degrees clock-
wise. (Angle tightening)
CAUTION:
Use angle wrench [SST: KV10112100] to check tightening
angle. Do not make judgment by visual inspection.

After tightening connecting rod nuts or bolts, make sure that
crankshaft rotates smoothly.
17. Install 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 tube presser
[SST: WS39930000] to rear oil seal retainer as shown in the
figure.
Use Genuine Liquid Gasket or equivalent.
CAUTION:
Replace with a new part.
NOTE:
Regard both rear oil seal and retainer as an assembly.
18. Install pilot converter.

With drift [outer diameter: approx. 33 mm (1.30 in)], press-fit
as far as it will go.
PBIC0809E
: 19.6 N·m (2.0 kg-m, 14 ft-lb)
SEM953E
PBIC2649E
PBIC0899E

CYLINDER BLOCK
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Piston pin (piston pin hole) 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 (“0”, “1” or “2”) on front of crankshaft, and
select connecting rod bearing of the same grade.
NOTE:
There is no grading for connecting rod big end diameter.
When Crankshaft and Connecting Rod are Reused
1. Measure the connecting rod big end diameter. Refer to EM-247, "CONNECTING ROD BIG END DIAME-
TER" .
2. Make sure that the connecting rod big end diameter is within the standard value.
3. Measure the crankshaft pin journal diameter. Refer to EM-251, "
CRANKSHAFT PIN JOURNAL DIAME-
TER" .
4. Determine the grade of crankshaft pin diameter grade by corresponding to the measured dimension in
“Crankshaft pin journal diameter” column of “Connecting Rod Bearing Selection Table”.
5. Select connecting rod bearing of the same grade.
Connecting Rod Bearing Selection Table
VQ23DE
Unit: mm (in)
Unit: mm (in)
VQ35DE
Unit: mm (in)
Unit: mm (in)
Undersize Bearings Usage Guide

When the specified connecting rod bearing oil clearance is not obtained with standard size connecting rod
bearings, use undersize (US) bearings.

When using undersize (US) bearing, measure the connecting rod bearing inner diameter with bearing
installed, and grind crankshaft pin so that the connecting rod bearing oil clearance satisfies the standard.
SEM452G
Connecting rod big end diameter 48.000 - 48.013 (1.8898 - 1.8903)
Crankshaft Connecting rod bearing
Crankshaft pin journal diameter Grade (Mark) Dimension (Bearing thickness range) Bearing grade No. Color
44.968 - 44.974 (1.7704 - 1.7706) 0 1.500 - 1.503 (0.0591 - 0.0592) STD 0 Black
44.962 - 44.968 (1.7702 - 1.7704) 1 1.503 - 1.506 (0.0592 - 0.0593) STD 1 Brown
44.956 - 44.962 (1.7699 - 1.7702) 2 1.506 - 1.509 (0.0593 - 0.0594) STD 2 Green
Connecting rod big end diameter 55.000 - 55.013 (2.1654 - 2.1659)
Crankshaft Connecting rod bearing
Crankshaft pin journal 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
51.962 - 51.968 (2.0457 - 2.0460) 1 1.503 - 1.506 (0.0592 - 0.0593) STD 1 Brown
51.956 - 51.962 (2.0455 - 2.0457) 2 1.506 - 1.509 (0.0593 - 0.0594) STD 2 Green